Merge pull request #293 from emrysal/feature/scheduling

Feature/scheduling
2021-07-01 13:52:08 +01:00 · 2021-07-01 13:52:08 +01:00 · d701d3905d
parent 80898ea706 a7173a32a0
commit d701d3905d
23 changed files with 3484 additions and 1004 deletions
--- a/.babelrc
+++ b/.babelrc
@ -0,0 +1,3 @@
+{
+  "presets": ["next/babel"]
+}
--- a/.eslintrc.json
+++ b/.eslintrc.json
@ -24,7 +24,8 @@
  "env": {
    "browser": true,
    "node": true,
-    "es6": true
+    "es6": true,
+    "jest": true
  },
  "settings": {
    "react": {
--- a/components/booking/AvailableTimes.tsx
+++ b/components/booking/AvailableTimes.tsx
@ -1,112 +1,40 @@
-import dayjs from "dayjs";
-import isBetween from "dayjs/plugin/isBetween";
-dayjs.extend(isBetween);
-import { useEffect, useState, useMemo } from "react";
-import getSlots from "../../lib/slots";
 import Link from "next/link";
-import { timeZone } from "../../lib/clock";
 import { useRouter } from "next/router";
+import Slots from "./Slots";
 import { ExclamationIcon } from "@heroicons/react/solid";

-const AvailableTimes = (props) => {
+const AvailableTimes = ({ date, eventLength, eventTypeId, workingHours, timeFormat, user }) => {
  const router = useRouter();
-  const { user, rescheduleUid } = router.query;
-  const [loaded, setLoaded] = useState(false);
-  const [error, setError] = useState(false);
-
-  const times = useMemo(() => {
-    const slots = getSlots({
-      calendarTimeZone: props.user.timeZone,
-      selectedTimeZone: timeZone(),
-      eventLength: props.eventType.length,
-      selectedDate: props.date,
-      dayStartTime: props.user.startTime,
-      dayEndTime: props.user.endTime,
-    });
-
-    return slots;
-  }, [props.date]);
-
-  const handleAvailableSlots = (busyTimes: []) => {
-    // Check for conflicts
-    for (let i = times.length - 1; i >= 0; i -= 1) {
-      busyTimes.forEach((busyTime) => {
-        const startTime = dayjs(busyTime.start);
-        const endTime = dayjs(busyTime.end);
-
-        // Check if start times are the same
-        if (dayjs(times[i]).format("HH:mm") == startTime.format("HH:mm")) {
-          times.splice(i, 1);
-        }
-
-        // Check if time is between start and end times
-        if (dayjs(times[i]).isBetween(startTime, endTime)) {
-          times.splice(i, 1);
-        }
-
-        // Check if slot end time is between start and end time
-        if (dayjs(times[i]).add(props.eventType.length, "minutes").isBetween(startTime, endTime)) {
-          times.splice(i, 1);
-        }
-
-        // Check if startTime is between slot
-        if (startTime.isBetween(dayjs(times[i]), dayjs(times[i]).add(props.eventType.length, "minutes"))) {
-          times.splice(i, 1);
-        }
-      });
-    }
-    // Display available times
-    setLoaded(true);
-  };
-
-  // Re-render only when invitee changes date
-  useEffect(() => {
-    setLoaded(false);
-    setError(false);
-    fetch(
-      `/api/availability/${user}?dateFrom=${props.date.startOf("day").utc().format()}&dateTo=${props.date
-        .endOf("day")
-        .utc()
-        .format()}`
-    )
-      .then((res) => res.json())
-      .then(handleAvailableSlots)
-      .catch((e) => {
-        console.error(e);
-        setError(true);
-      });
-  }, [props.date]);
-
+  const { rescheduleUid } = router.query;
+  const { slots, isFullyBooked, hasErrors } = Slots({ date, eventLength, workingHours });
  return (
    <div className="sm:pl-4 mt-8 sm:mt-0 text-center sm:w-1/3  md:max-h-97 overflow-y-auto">
      <div className="text-gray-600 font-light text-xl mb-4 text-left">
-        <span className="w-1/2">{props.date.format("dddd DD MMMM YYYY")}</span>
+        <span className="w-1/2">{date.format("dddd DD MMMM YYYY")}</span>
      </div>
-      {!error &&
-        loaded &&
-        times.length > 0 &&
-        times.map((time) => (
-          <div key={dayjs(time).utc().format()}>
+      {slots.length > 0 &&
+        slots.map((slot) => (
+          <div key={slot.format()}>
            <Link
              href={
-                `/${props.user.username}/book?date=${dayjs(time).utc().format()}&type=${props.eventType.id}` +
+                `/${user.username}/book?date=${slot.utc().format()}&type=${eventTypeId}` +
                (rescheduleUid ? "&rescheduleUid=" + rescheduleUid : "")
              }>
-              <a
-                key={dayjs(time).format("hh:mma")}
-                className="block font-medium mb-4 text-blue-600 border border-blue-600 rounded hover:text-white hover:bg-blue-600 py-4">
-                {dayjs(time).tz(timeZone()).format(props.timeFormat)}
+              <a className="block font-medium mb-4 text-blue-600 border border-blue-600 rounded hover:text-white hover:bg-blue-600 py-4">
+                {slot.format(timeFormat)}
              </a>
            </Link>
          </div>
        ))}
-      {!error && loaded && times.length == 0 && (
+      {isFullyBooked && (
        <div className="w-full h-full flex flex-col justify-center content-center items-center -mt-4">
-          <h1 className="text-xl font">{props.user.name} is all booked today.</h1>
+          <h1 className="text-xl font">{user.name} is all booked today.</h1>
        </div>
      )}
-      {!error && !loaded && <div className="loader" />}
-      {error && (
+
+      {!isFullyBooked && slots.length === 0 && !hasErrors && <div className="loader" />}
+
+      {hasErrors && (
        <div className="bg-yellow-50 border-l-4 border-yellow-400 p-4">
          <div className="flex">
            <div className="flex-shrink-0">
@ -116,9 +44,9 @@ const AvailableTimes = (props) => {
              <p className="text-sm text-yellow-700">
                Could not load the available time slots.{" "}
                <a
-                  href={"mailto:" + props.user.email}
+                  href={"mailto:" + user.email}
                  className="font-medium underline text-yellow-700 hover:text-yellow-600">
-                  Contact {props.user.name} via e-mail
+                  Contact {user.name} via e-mail
                </a>
              </p>
            </div>
--- a/components/booking/DatePicker.tsx
+++ b/components/booking/DatePicker.tsx
@ -0,0 +1,134 @@
+import { ChevronLeftIcon, ChevronRightIcon } from "@heroicons/react/solid";
+import { useEffect, useState } from "react";
+import dayjs, { Dayjs } from "dayjs";
+import utc from "dayjs/plugin/utc";
+import timezone from "dayjs/plugin/timezone";
+import getSlots from "@lib/slots";
+dayjs.extend(utc);
+dayjs.extend(timezone);
+
+const DatePicker = ({
+  weekStart,
+  onDatePicked,
+  workingHours,
+  organizerTimeZone,
+  inviteeTimeZone,
+  eventLength,
+}) => {
+  const [calendar, setCalendar] = useState([]);
+  const [selectedMonth, setSelectedMonth]: number = useState();
+  const [selectedDate, setSelectedDate]: Dayjs = useState();
+
+  useEffect(() => {
+    setSelectedMonth(dayjs().tz(inviteeTimeZone).month());
+  }, []);
+
+  useEffect(() => {
+    if (selectedDate) onDatePicked(selectedDate);
+  }, [selectedDate]);
+
+  // Handle month changes
+  const incrementMonth = () => {
+    setSelectedMonth(selectedMonth + 1);
+  };
+
+  const decrementMonth = () => {
+    setSelectedMonth(selectedMonth - 1);
+  };
+
+  useEffect(() => {
+    if (!selectedMonth) {
+      // wish next had a way of dealing with this magically;
+      return;
+    }
+
+    const inviteeDate = dayjs().tz(inviteeTimeZone).month(selectedMonth);
+
+    const isDisabled = (day: number) => {
+      const date: Dayjs = inviteeDate.date(day);
+      return (
+        date.endOf("day").isBefore(dayjs().tz(inviteeTimeZone)) ||
+        !getSlots({
+          inviteeDate: date,
+          frequency: eventLength,
+          workingHours,
+          organizerTimeZone,
+        }).length
+      );
+    };
+
+    // Set up calendar
+    const daysInMonth = inviteeDate.daysInMonth();
+    const days = [];
+    for (let i = 1; i <= daysInMonth; i++) {
+      days.push(i);
+    }
+
+    // Create placeholder elements for empty days in first week
+    let weekdayOfFirst = inviteeDate.date(1).day();
+    if (weekStart === "Monday") {
+      weekdayOfFirst -= 1;
+      if (weekdayOfFirst < 0) weekdayOfFirst = 6;
+    }
+    const emptyDays = Array(weekdayOfFirst)
+      .fill(null)
+      .map((day, i) => (
+        <div key={`e-${i}`} className={"text-center w-10 h-10 rounded-full mx-auto"}>
+          {null}
+        </div>
+      ));
+
+    // Combine placeholder days with actual days
+    setCalendar([
+      ...emptyDays,
+      ...days.map((day) => (
+        <button
+          key={day}
+          onClick={() => setSelectedDate(inviteeDate.date(day))}
+          disabled={isDisabled(day)}
+          className={
+            "text-center w-10 h-10 rounded-full mx-auto" +
+            (isDisabled(day) ? " text-gray-400 font-light" : " text-blue-600 font-medium") +
+            (selectedDate && selectedDate.isSame(inviteeDate.date(day), "day")
+              ? " bg-blue-600 text-white-important"
+              : !isDisabled(day)
+              ? " bg-blue-50"
+              : "")
+          }>
+          {day}
+        </button>
+      )),
+    ]);
+  }, [selectedMonth, inviteeTimeZone, selectedDate]);
+
+  return selectedMonth ? (
+    <div className={"mt-8 sm:mt-0 " + (selectedDate ? "sm:w-1/3 border-r sm:px-4" : "sm:w-1/2 sm:pl-4")}>
+      <div className="flex text-gray-600 font-light text-xl mb-4 ml-2">
+        <span className="w-1/2">{dayjs().month(selectedMonth).format("MMMM YYYY")}</span>
+        <div className="w-1/2 text-right">
+          <button
+            onClick={decrementMonth}
+            className={"mr-4 " + (selectedMonth <= dayjs().tz(inviteeTimeZone).month() && "text-gray-400")}
+            disabled={selectedMonth <= dayjs().tz(inviteeTimeZone).month()}>
+            <ChevronLeftIcon className="w-5 h-5" />
+          </button>
+          <button onClick={incrementMonth}>
+            <ChevronRightIcon className="w-5 h-5" />
+          </button>
+        </div>
+      </div>
+      <div className="grid grid-cols-7 gap-y-4 text-center">
+        {["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]
+          .sort((a, b) => (weekStart.startsWith(a) ? -1 : weekStart.startsWith(b) ? 1 : 0))
+          .map((weekDay) => (
+            <div key={weekDay} className="uppercase text-gray-400 text-xs tracking-widest">
+              {weekDay}
+            </div>
+          ))}
+        {calendar}
+      </div>
+    </div>
+  ) : null;
+};
+
+export default DatePicker;
--- a/components/booking/Slots.tsx
+++ b/components/booking/Slots.tsx
@ -0,0 +1,96 @@
+import { useState, useEffect } from "react";
+import { useRouter } from "next/router";
+import getSlots from "../../lib/slots";
+import dayjs, { Dayjs } from "dayjs";
+import isBetween from "dayjs/plugin/isBetween";
+import utc from "dayjs/plugin/utc";
+dayjs.extend(isBetween);
+dayjs.extend(utc);
+
+type Props = {
+  eventLength: number;
+  minimumBookingNotice?: number;
+  date: Dayjs;
+};
+
+const Slots = ({ eventLength, minimumBookingNotice, date, workingHours, organizerUtcOffset }: Props) => {
+  minimumBookingNotice = minimumBookingNotice || 0;
+
+  const router = useRouter();
+  const { user } = router.query;
+  const [slots, setSlots] = useState([]);
+  const [isFullyBooked, setIsFullyBooked] = useState(false);
+  const [hasErrors, setHasErrors] = useState(false);
+
+  useEffect(() => {
+    setSlots([]);
+    setIsFullyBooked(false);
+    setHasErrors(false);
+    fetch(
+      `/api/availability/${user}?dateFrom=${date.startOf("day").utc().startOf("day").format()}&dateTo=${date
+        .endOf("day")
+        .utc()
+        .endOf("day")
+        .format()}`
+    )
+      .then((res) => res.json())
+      .then(handleAvailableSlots)
+      .catch((e) => {
+        console.error(e);
+        setHasErrors(true);
+      });
+  }, [date]);
+
+  const handleAvailableSlots = (busyTimes: []) => {
+    const times = getSlots({
+      frequency: eventLength,
+      inviteeDate: date,
+      workingHours,
+      minimumBookingNotice,
+      organizerUtcOffset,
+    });
+
+    const timesLengthBeforeConflicts: number = times.length;
+
+    // Check for conflicts
+    for (let i = times.length - 1; i >= 0; i -= 1) {
+      busyTimes.every((busyTime): boolean => {
+        const startTime = dayjs(busyTime.start).utc();
+        const endTime = dayjs(busyTime.end).utc();
+        // Check if start times are the same
+        if (times[i].utc().isSame(startTime)) {
+          times.splice(i, 1);
+        }
+        // Check if time is between start and end times
+        else if (times[i].utc().isBetween(startTime, endTime)) {
+          times.splice(i, 1);
+        }
+        // Check if slot end time is between start and end time
+        else if (times[i].utc().add(eventLength, "minutes").isBetween(startTime, endTime)) {
+          times.splice(i, 1);
+        }
+        // Check if startTime is between slot
+        else if (startTime.isBetween(times[i].utc(), times[i].utc().add(eventLength, "minutes"))) {
+          times.splice(i, 1);
+        } else {
+          return true;
+        }
+        return false;
+      });
+    }
+
+    if (times.length === 0 && timesLengthBeforeConflicts !== 0) {
+      setIsFullyBooked(true);
+    }
+    // Display available times
+    setSlots(times);
+  };
+
+  return {
+    slots,
+    isFullyBooked,
+    hasErrors,
+  };
+};
+
+export default Slots;
--- a/components/booking/TimeOptions.tsx
+++ b/components/booking/TimeOptions.tsx
@ -1,73 +1,72 @@
-import {Switch} from "@headlessui/react";
+import { Switch } from "@headlessui/react";
 import TimezoneSelect from "react-timezone-select";
-import {useEffect, useState} from "react";
-import {timeZone, is24h} from '../../lib/clock';
+import { useEffect, useState } from "react";
+import { timeZone, is24h } from "../../lib/clock";

 function classNames(...classes) {
-  return classes.filter(Boolean).join(' ')
+  return classes.filter(Boolean).join(" ");
 }

 const TimeOptions = (props) => {
-
-  const [selectedTimeZone, setSelectedTimeZone] = useState('');
+  const [selectedTimeZone, setSelectedTimeZone] = useState("");
  const [is24hClock, setIs24hClock] = useState(false);

-  useEffect( () => {
+  useEffect(() => {
    setIs24hClock(is24h());
    setSelectedTimeZone(timeZone());
  }, []);

-  useEffect( () => {
-    props.onSelectTimeZone(timeZone(selectedTimeZone));
+  useEffect(() => {
+    if (selectedTimeZone && timeZone() && selectedTimeZone !== timeZone()) {
+      props.onSelectTimeZone(timeZone(selectedTimeZone));
+    }
  }, [selectedTimeZone]);

-  useEffect( () => {
+  useEffect(() => {
    props.onToggle24hClock(is24h(is24hClock));
  }, [is24hClock]);

-  return selectedTimeZone !== "" && (
-    <div className="w-full rounded shadow border bg-white px-4 py-2">
-      <div className="flex mb-4">
-        <div className="w-1/2 font-medium">Time Options</div>
-        <div className="w-1/2">
-          <Switch.Group
-            as="div"
-            className="flex items-center justify-end"
-          >
-            <Switch.Label as="span" className="mr-3">
-              <span className="text-sm text-gray-500">am/pm</span>
-            </Switch.Label>
-            <Switch
-              checked={is24hClock}
-              onChange={setIs24hClock}
-              className={classNames(
-                is24hClock ? "bg-blue-600" : "bg-gray-200",
-                "relative inline-flex flex-shrink-0 h-5 w-8 border-2 border-transparent rounded-full cursor-pointer transition-colors ease-in-out duration-200 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blue-500"
-              )}
-            >
-              <span className="sr-only">Use setting</span>
-              <span
-                aria-hidden="true"
+  return (
+    selectedTimeZone !== "" && (
+      <div className="w-full rounded shadow border bg-white px-4 py-2">
+        <div className="flex mb-4">
+          <div className="w-1/2 font-medium">Time Options</div>
+          <div className="w-1/2">
+            <Switch.Group as="div" className="flex items-center justify-end">
+              <Switch.Label as="span" className="mr-3">
+                <span className="text-sm text-gray-500">am/pm</span>
+              </Switch.Label>
+              <Switch
+                checked={is24hClock}
+                onChange={setIs24hClock}
                className={classNames(
-                  is24hClock ? "translate-x-3" : "translate-x-0",
-                  "pointer-events-none inline-block h-4 w-4 rounded-full bg-white shadow transform ring-0 transition ease-in-out duration-200"
-                )}
-              />
-            </Switch>
-            <Switch.Label as="span" className="ml-3">
-              <span className="text-sm text-gray-500">24h</span>
-            </Switch.Label>
-          </Switch.Group>
+                  is24hClock ? "bg-blue-600" : "bg-gray-200",
+                  "relative inline-flex flex-shrink-0 h-5 w-8 border-2 border-transparent rounded-full cursor-pointer transition-colors ease-in-out duration-200 focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blue-500"
+                )}>
+                <span className="sr-only">Use setting</span>
+                <span
+                  aria-hidden="true"
+                  className={classNames(
+                    is24hClock ? "translate-x-3" : "translate-x-0",
+                    "pointer-events-none inline-block h-4 w-4 rounded-full bg-white shadow transform ring-0 transition ease-in-out duration-200"
+                  )}
+                />
+              </Switch>
+              <Switch.Label as="span" className="ml-3">
+                <span className="text-sm text-gray-500">24h</span>
+              </Switch.Label>
+            </Switch.Group>
+          </div>
        </div>
+        <TimezoneSelect
+          id="timeZone"
+          value={selectedTimeZone}
+          onChange={(tz) => setSelectedTimeZone(tz.value)}
+          className="mb-2 shadow-sm focus:ring-blue-500 focus:border-blue-500 mt-1 block w-full sm:text-sm border-gray-300 rounded-md"
+        />
      </div>
-      <TimezoneSelect
-        id="timeZone"
-        value={selectedTimeZone}
-        onChange={(tz) => setSelectedTimeZone(tz.value)}
-        className="mb-2 shadow-sm focus:ring-blue-500 focus:border-blue-500 mt-1 block w-full sm:text-sm border-gray-300 rounded-md"
-      />
-    </div>
+    )
  );
-}
+};

-export default TimeOptions;
+export default TimeOptions;
--- a/components/ui/PoweredByCalendso.tsx
+++ b/components/ui/PoweredByCalendso.tsx
@ -0,0 +1,22 @@
+import Link from "next/link";
+
+const PoweredByCalendso = (props) => (
+  <div className="text-xs text-right pt-1">
+    <Link href="https://calendso.com">
+      <a
+        style={{ color: "#104D86" }}
+        className="opacity-50 hover:opacity-100"
+      >
+        powered by{" "}
+        <img
+          style={{ top: -2 }}
+          className="w-auto inline h-3 relative"
+          src="/calendso-logo-word.svg"
+          alt="Calendso Logo"
+        />
+      </a>
+    </Link>
+  </div>
+);
+
+export default PoweredByCalendso;
--- a/components/ui/Scheduler.tsx
+++ b/components/ui/Scheduler.tsx
@ -0,0 +1,143 @@
+import React, { useEffect, useState } from "react";
+import TimezoneSelect from "react-timezone-select";
+import { TrashIcon } from "@heroicons/react/outline";
+import { WeekdaySelect } from "./WeekdaySelect";
+import SetTimesModal from "./modal/SetTimesModal";
+import dayjs from "dayjs";
+import utc from "dayjs/plugin/utc";
+import timezone from "dayjs/plugin/timezone";
+import { Availability } from "@prisma/client";
+dayjs.extend(utc);
+dayjs.extend(timezone);
+
+type Props = {
+  timeZone: string;
+  availability: Availability[];
+  setTimeZone: unknown;
+};
+
+export const Scheduler = ({
+  availability,
+  setAvailability,
+  timeZone: selectedTimeZone,
+  setTimeZone,
+}: Props) => {
+  const [editSchedule, setEditSchedule] = useState(-1);
+  const [dateOverrides, setDateOverrides] = useState([]);
+  const [openingHours, setOpeningHours] = useState([]);
+
+  useEffect(() => {
+    setOpeningHours(
+      availability
+        .filter((item: Availability) => item.days.length !== 0)
+        .map((item) => {
+          item.startDate = dayjs().utc().startOf("day").add(item.startTime, "minutes");
+          item.endDate = dayjs().utc().startOf("day").add(item.endTime, "minutes");
+          return item;
+        })
+    );
+    setDateOverrides(availability.filter((item: Availability) => item.date));
+  }, []);
+
+  // updates availability to how it should be formatted outside this component.
+  useEffect(() => {
+    setAvailability({
+      dateOverrides: dateOverrides,
+      openingHours: openingHours,
+    });
+  }, [dateOverrides, openingHours]);
+
+  const addNewSchedule = () => setEditSchedule(openingHours.length);
+
+  const applyEditSchedule = (changed) => {
+    // new entry
+    if (!changed.days) {
+      changed.days = [1, 2, 3, 4, 5]; // Mon - Fri
+      setOpeningHours(openingHours.concat(changed));
+    } else {
+      // update
+      const replaceWith = { ...openingHours[editSchedule], ...changed };
+      openingHours.splice(editSchedule, 1, replaceWith);
+      setOpeningHours([].concat(openingHours));
+    }
+  };
+
+  const removeScheduleAt = (toRemove: number) => {
+    openingHours.splice(toRemove, 1);
+    setOpeningHours([].concat(openingHours));
+  };
+
+  const OpeningHours = ({ idx, item }) => (
+    <li className="py-2 flex justify-between border-t">
+      <div className="inline-flex ml-2">
+        <WeekdaySelect defaultValue={item.days} onSelect={(selected: number[]) => (item.days = selected)} />
+        <button className="ml-2 text-sm px-2" type="button" onClick={() => setEditSchedule(idx)}>
+          {dayjs()
+            .startOf("day")
+            .add(item.startTime, "minutes")
+            .format(item.startTime % 60 === 0 ? "ha" : "h:mma")}
+          &nbsp;until&nbsp;
+          {dayjs()
+            .startOf("day")
+            .add(item.endTime, "minutes")
+            .format(item.endTime % 60 === 0 ? "ha" : "h:mma")}
+        </button>
+      </div>
+      <button
+        type="button"
+        onClick={() => removeScheduleAt(idx)}
+        className="btn-sm bg-transparent px-2 py-1 ml-1">
+        <TrashIcon className="h-6 w-6 inline text-gray-400 -mt-1" />
+      </button>
+    </li>
+  );
+
+  return (
+    <div>
+      <div className="rounded border flex">
+        <div className="w-3/5">
+          <div className="w-3/4 p-2">
+            <label htmlFor="timeZone" className="block text-sm font-medium text-gray-700">
+              Timezone
+            </label>
+            <div className="mt-1">
+              <TimezoneSelect
+                id="timeZone"
+                value={selectedTimeZone}
+                onChange={(tz) => setTimeZone(tz.value)}
+                className="shadow-sm focus:ring-blue-500 focus:border-blue-500 mt-1 block w-full sm:text-sm border-gray-300 rounded-md"
+              />
+            </div>
+          </div>
+          <ul>
+            {openingHours.map((item, idx) => (
+              <OpeningHours key={idx} idx={idx} item={item} />
+            ))}
+          </ul>
+          <hr />
+          <button type="button" onClick={addNewSchedule} className="btn-white btn-sm m-2">
+            Add another
+          </button>
+        </div>
+        <div className="border-l p-2 w-2/5 text-sm bg-gray-50">
+          {/*<p className="font-bold mb-2">Add date overrides</p>
+          <p className="mb-2">
+            Add dates when your availability changes from your weekly hours
+          </p>
+          <button className="btn-sm btn-white">Add a date override</button>*/}
+        </div>
+      </div>
+      {editSchedule >= 0 && (
+        <SetTimesModal
+          startTime={openingHours[editSchedule] ? openingHours[editSchedule].startTime : 540}
+          endTime={openingHours[editSchedule] ? openingHours[editSchedule].endTime : 1020}
+          onChange={(times) => applyEditSchedule({ ...(openingHours[editSchedule] || {}), ...times })}
+          onExit={() => setEditSchedule(-1)}
+        />
+      )}
+      {/*{showDateOverrideModal &&
+        <DateOverrideModal />
+      }*/}
+    </div>
+  );
+};
--- a/components/ui/WeekdaySelect.tsx
+++ b/components/ui/WeekdaySelect.tsx
@ -0,0 +1,53 @@
+import React, { useEffect, useState } from "react";
+
+export const WeekdaySelect = (props) => {
+  const [activeDays, setActiveDays] = useState(
+    [...Array(7).keys()].map((v, i) => (props.defaultValue || []).includes(i))
+  );
+
+  const days = ["S", "M", "T", "W", "T", "F", "S"];
+
+  useEffect(() => {
+    props.onSelect(activeDays.map((v, idx) => (v ? idx : -1)).filter((v) => v !== -1));
+  }, [activeDays]);
+
+  const toggleDay = (e, idx: number) => {
+    e.preventDefault();
+    activeDays[idx] = !activeDays[idx];
+    setActiveDays([].concat(activeDays));
+  };
+
+  return (
+    <div className="weekdaySelect">
+      <div className="inline-flex">
+        {days.map((day, idx) =>
+          activeDays[idx] ? (
+            <button
+              key={idx}
+              onClick={(e) => toggleDay(e, idx)}
+              style={{ marginLeft: "-2px" }}
+              className={`
+                    active focus:outline-none border-2 border-blue-500 px-2 py-1 rounded 
+                    ${activeDays[idx + 1] ? "rounded-r-none" : ""} 
+                    ${activeDays[idx - 1] ? "rounded-l-none" : ""} 
+                    ${idx === 0 ? "rounded-l" : ""} 
+                    ${idx === days.length - 1 ? "rounded-r" : ""}
+                  `}>
+              {day}
+            </button>
+          ) : (
+            <button
+              key={idx}
+              onClick={(e) => toggleDay(e, idx)}
+              style={{ marginTop: "1px", marginBottom: "1px" }}
+              className={`border focus:outline-none px-2 py-1 rounded-none ${
+                idx === 0 ? "rounded-l" : "border-l-0"
+              } ${idx === days.length - 1 ? "rounded-r" : ""}`}>
+              {day}
+            </button>
+          )
+        )}
+      </div>
+    </div>
+  );
+};
--- a/components/ui/modal/SetTimesModal.tsx
+++ b/components/ui/modal/SetTimesModal.tsx
@ -0,0 +1,146 @@
+import { ClockIcon } from "@heroicons/react/outline";
+import { useRef } from "react";
+
+export default function SetTimesModal(props) {
+  const [startHours, startMinutes] = [Math.floor(props.startTime / 60), props.startTime % 60];
+  const [endHours, endMinutes] = [Math.floor(props.endTime / 60), props.endTime % 60];
+
+  const startHoursRef = useRef<HTMLInputElement>();
+  const startMinsRef = useRef<HTMLInputElement>();
+  const endHoursRef = useRef<HTMLInputElement>();
+  const endMinsRef = useRef<HTMLInputElement>();
+
+  function updateStartEndTimesHandler(event) {
+    event.preventDefault();
+
+    const enteredStartHours = parseInt(startHoursRef.current.value);
+    const enteredStartMins = parseInt(startMinsRef.current.value);
+    const enteredEndHours = parseInt(endHoursRef.current.value);
+    const enteredEndMins = parseInt(endMinsRef.current.value);
+
+    props.onChange({
+      startTime: enteredStartHours * 60 + enteredStartMins,
+      endTime: enteredEndHours * 60 + enteredEndMins,
+    });
+
+    props.onExit(0);
+  }
+
+  return (
+    <div
+      className="fixed z-10 inset-0 overflow-y-auto"
+      aria-labelledby="modal-title"
+      role="dialog"
+      aria-modal="true">
+      <div className="flex items-end justify-center min-h-screen pt-4 px-4 pb-20 text-center sm:block sm:p-0">
+        <div className="fixed inset-0 bg-gray-500 bg-opacity-75 transition-opacity" aria-hidden="true"></div>
+
+        <span className="hidden sm:inline-block sm:align-middle sm:h-screen" aria-hidden="true">
+          &#8203;
+        </span>
+
+        <div className="inline-block align-bottom bg-white rounded-lg px-4 pt-5 pb-4 text-left overflow-hidden shadow-xl transform transition-all sm:my-8 sm:align-middle sm:max-w-lg sm:w-full sm:p-6">
+          <div className="sm:flex sm:items-start mb-4">
+            <div className="mx-auto flex-shrink-0 flex items-center justify-center h-12 w-12 rounded-full bg-blue-100 sm:mx-0 sm:h-10 sm:w-10">
+              <ClockIcon className="h-6 w-6 text-blue-600" />
+            </div>
+            <div className="mt-3 text-center sm:mt-0 sm:ml-4 sm:text-left">
+              <h3 className="text-lg leading-6 font-medium text-gray-900" id="modal-title">
+                Change when you are available for bookings
+              </h3>
+              <div>
+                <p className="text-sm text-gray-500">Set your work schedule</p>
+              </div>
+            </div>
+          </div>
+          <div className="flex mb-4">
+            <label className="w-1/4 pt-2 block text-sm font-medium text-gray-700">Start time</label>
+            <div>
+              <label htmlFor="startHours" className="sr-only">
+                Hours
+              </label>
+              <input
+                ref={startHoursRef}
+                type="number"
+                min="0"
+                max="23"
+                maxLength="2"
+                name="hours"
+                id="startHours"
+                className="shadow-sm focus:ring-blue-500 focus:border-blue-500 block w-full sm:text-sm border-gray-300 rounded-md"
+                placeholder="9"
+                defaultValue={startHours}
+              />
+            </div>
+            <span className="mx-2 pt-1">:</span>
+            <div>
+              <label htmlFor="startMinutes" className="sr-only">
+                Minutes
+              </label>
+              <input
+                ref={startMinsRef}
+                type="number"
+                min="0"
+                max="59"
+                step="15"
+                maxLength="2"
+                name="minutes"
+                id="startMinutes"
+                className="shadow-sm focus:ring-blue-500 focus:border-blue-500 block w-full sm:text-sm border-gray-300 rounded-md"
+                placeholder="30"
+                defaultValue={startMinutes}
+              />
+            </div>
+          </div>
+          <div className="flex">
+            <label className="w-1/4 pt-2 block text-sm font-medium text-gray-700">End time</label>
+            <div>
+              <label htmlFor="endHours" className="sr-only">
+                Hours
+              </label>
+              <input
+                ref={endHoursRef}
+                type="number"
+                min="0"
+                max="24"
+                maxLength="2"
+                name="hours"
+                id="endHours"
+                className="shadow-sm focus:ring-blue-500 focus:border-blue-500 block w-full sm:text-sm border-gray-300 rounded-md"
+                placeholder="17"
+                defaultValue={endHours}
+              />
+            </div>
+            <span className="mx-2 pt-1">:</span>
+            <div>
+              <label htmlFor="endMinutes" className="sr-only">
+                Minutes
+              </label>
+              <input
+                ref={endMinsRef}
+                type="number"
+                min="0"
+                max="59"
+                maxLength="2"
+                step="15"
+                name="minutes"
+                id="endMinutes"
+                className="shadow-sm focus:ring-blue-500 focus:border-blue-500 block w-full sm:text-sm border-gray-300 rounded-md"
+                placeholder="30"
+                defaultValue={endMinutes}
+              />
+            </div>
+          </div>
+          <div className="mt-5 sm:mt-4 sm:flex sm:flex-row-reverse">
+            <button onClick={updateStartEndTimesHandler} type="submit" className="btn btn-primary">
+              Save
+            </button>
+            <button onClick={props.onExit} type="button" className="btn btn-white mr-2">
+              Cancel
+            </button>
+          </div>
+        </div>
+      </div>
+    </div>
+  );
+}
--- a/lib/jsonUtils.ts
+++ b/lib/jsonUtils.ts
@ -0,0 +1,11 @@
+export const validJson = (jsonString: string) => {
+  try {
+    const o = JSON.parse(jsonString);
+    if (o && typeof o === "object") {
+      return o;
+    }
+  } catch (e) {
+    console.log("Invalid JSON:", e);
+  }
+  return false;
+};
--- a/lib/slots.ts
+++ b/lib/slots.ts
@ -1,94 +1,134 @@
-const dayjs = require("dayjs");
-
-const isToday = require("dayjs/plugin/isToday");
-const utc = require("dayjs/plugin/utc");
-const timezone = require("dayjs/plugin/timezone");
-
-dayjs.extend(isToday);
+import dayjs, { Dayjs } from "dayjs";
+import utc from "dayjs/plugin/utc";
+import timezone from "dayjs/plugin/timezone";
 dayjs.extend(utc);
 dayjs.extend(timezone);

-const getMinutesFromMidnight = (date) => {
-  return date.hour() * 60 + date.minute();
+type WorkingHour = {
+  days: number[];
+  startTime: number;
+  endTime: number;
 };

-const getSlots = ({
-  calendarTimeZone,
-  eventLength,
-  selectedTimeZone,
-  selectedDate,
-  dayStartTime,
-  dayEndTime
-}) => {
+type GetSlots = {
+  inviteeDate: Dayjs;
+  frequency: number;
+  workingHours: WorkingHour[];
+  minimumBookingNotice?: number;
+  organizerTimeZone: string;
+};

-  if(!selectedDate) return []
-  
-  const lowerBound = selectedDate.tz(selectedTimeZone).startOf("day");
+type Boundary = {
+  lowerBound: number;
+  upperBound: number;
+};

-  // Simple case, same timezone
-  if (calendarTimeZone === selectedTimeZone) {
-    const slots = [];
-    const now = dayjs();
-    for (
-      let minutes = dayStartTime;
-      minutes <= dayEndTime - eventLength;
-      minutes += parseInt(eventLength, 10)
-    ) {
-      const slot = lowerBound.add(minutes, "minutes");
-      if (slot > now) {
-        slots.push(slot);
-      }
-    }
-    return slots;
+const freqApply = (cb, value: number, frequency: number): number => cb(value / frequency) * frequency;
+
+const intersectBoundary = (a: Boundary, b: Boundary) => {
+  if (a.upperBound < b.lowerBound || a.lowerBound > b.upperBound) {
+    return;
  }
+  return {
+    lowerBound: Math.max(b.lowerBound, a.lowerBound),
+    upperBound: Math.min(b.upperBound, a.upperBound),
+  };
+};

-  const upperBound = selectedDate.tz(selectedTimeZone).endOf("day");
+// say invitee is -60,1380, and boundary is -120,240 - the overlap is -60,240
+const getOverlaps = (inviteeBoundary: Boundary, boundaries: Boundary[]) =>
+  boundaries.map((boundary) => intersectBoundary(inviteeBoundary, boundary)).filter(Boolean);

-  // We need to start generating slots from the start of the calendarTimeZone day
-  const startDateTime = lowerBound
-    .tz(calendarTimeZone)
+const organizerBoundaries = (
+  workingHours: [],
+  inviteeDate: Dayjs,
+  inviteeBounds: Boundary,
+  organizerTimeZone
+): Boundary[] => {
+  const boundaries: Boundary[] = [];
+
+  const startDay: number = +inviteeDate
+    .utc()
    .startOf("day")
-    .add(dayStartTime, "minutes");
+    .add(inviteeBounds.lowerBound, "minutes")
+    .format("d");
+  const endDay: number = +inviteeDate
+    .utc()
+    .startOf("day")
+    .add(inviteeBounds.upperBound, "minutes")
+    .format("d");

-  let phase = 0;
-  if (startDateTime < lowerBound) {
-    // Getting minutes of the first event in the day of the chooser
-    const diff = lowerBound.diff(startDateTime, "minutes");
-
-    // finding first event
-    phase = diff + eventLength - (diff % eventLength);
-  }
-
-  // We can stop as soon as the selectedTimeZone day ends
-  const endDateTime = upperBound
-    .tz(calendarTimeZone)
-    .subtract(eventLength, "minutes");
-
-  const maxMinutes = endDateTime.diff(startDateTime, "minutes");
-
-  const slots = [];
-  const now = dayjs();
-  for (
-    let minutes = phase;
-    minutes <= maxMinutes;
-    minutes += parseInt(eventLength, 10)
-  ) {
-    const slot = startDateTime.add(minutes, "minutes");
-
-    const minutesFromMidnight = getMinutesFromMidnight(slot);
-
-    if (
-      minutesFromMidnight < dayStartTime ||
-      minutesFromMidnight > dayEndTime - eventLength ||
-      slot < now
-    ) {
-      continue;
+  workingHours.forEach((item) => {
+    const lowerBound: number = item.startTime - dayjs().tz(organizerTimeZone).utcOffset();
+    const upperBound: number = item.endTime - dayjs().tz(organizerTimeZone).utcOffset();
+    if (startDay !== endDay) {
+      if (inviteeBounds.lowerBound < 0) {
+        // lowerBound edges into the previous day
+        if (item.days.includes(startDay)) {
+          boundaries.push({ lowerBound: lowerBound - 1440, upperBound: upperBound - 1440 });
+        }
+        if (item.days.includes(endDay)) {
+          boundaries.push({ lowerBound, upperBound });
+        }
+      } else {
+        // upperBound edges into the next day
+        if (item.days.includes(endDay)) {
+          boundaries.push({ lowerBound: lowerBound + 1440, upperBound: upperBound + 1440 });
+        }
+        if (item.days.includes(startDay)) {
+          boundaries.push({ lowerBound, upperBound });
+        }
+      }
+    } else {
+      boundaries.push({ lowerBound, upperBound });
    }
+  });
+  return boundaries;
+};

-    slots.push(slot.tz(selectedTimeZone));
+const inviteeBoundary = (startTime: number, utcOffset: number, frequency: number): Boundary => {
+  const upperBound: number = freqApply(Math.floor, 1440 - utcOffset, frequency);
+  const lowerBound: number = freqApply(Math.ceil, startTime - utcOffset, frequency);
+  return {
+    lowerBound,
+    upperBound,
+  };
+};
+
+const getSlotsBetweenBoundary = (frequency: number, { lowerBound, upperBound }: Boundary) => {
+  const slots: Dayjs[] = [];
+  for (let minutes = 0; lowerBound + minutes <= upperBound - frequency; minutes += frequency) {
+    slots.push(
+      <Dayjs>dayjs
+        .utc()
+        .startOf("day")
+        .add(lowerBound + minutes, "minutes")
+    );
  }
-
  return slots;
 };

-export default getSlots
+const getSlots = ({
+  inviteeDate,
+  frequency,
+  minimumBookingNotice,
+  workingHours,
+  organizerTimeZone,
+}: GetSlots): Dayjs[] => {
+  const startTime = dayjs.utc().isSame(dayjs(inviteeDate), "day")
+    ? inviteeDate.hour() * 60 + inviteeDate.minute() + (minimumBookingNotice || 0)
+    : 0;
+
+  const inviteeBounds = inviteeBoundary(startTime, inviteeDate.utcOffset(), frequency);
+
+  return getOverlaps(
+    inviteeBounds,
+    organizerBoundaries(workingHours, inviteeDate, inviteeBounds, organizerTimeZone)
+  )
+    .reduce((slots, boundary: Boundary) => [...slots, ...getSlotsBetweenBoundary(frequency, boundary)], [])
+    .map((slot) =>
+      slot.month(inviteeDate.month()).date(inviteeDate.date()).utcOffset(inviteeDate.utcOffset())
+    );
+};
+
+export default getSlots;
--- a/package.json
+++ b/package.json
@ -4,6 +4,7 @@
  "private": true,
  "scripts": {
    "dev": "next dev",
+    "test": "node --experimental-vm-modules node_modules/.bin/jest",
    "build": "next build",
    "start": "next start",
    "postinstall": "prisma generate",
@ -38,6 +39,7 @@
    "uuid": "^8.3.2"
  },
  "devDependencies": {
+    "@types/jest": "^26.0.23",
    "@types/node": "^14.14.33",
    "@types/nodemailer": "^6.4.2",
    "@types/react": "^17.0.3",
@ -50,7 +52,9 @@
    "eslint-plugin-react": "^7.24.0",
    "eslint-plugin-react-hooks": "^4.2.0",
    "husky": "^6.0.0",
+    "jest": "^27.0.5",
    "lint-staged": "^11.0.0",
+    "mockdate": "^3.0.5",
    "postcss": "^8.2.8",
    "prettier": "^2.3.1",
    "prisma": "^2.23.0",
@ -62,5 +66,19 @@
      "prettier --write",
      "eslint"
    ]
+  },
+  "jest": {
+    "verbose": true,
+    "extensionsToTreatAsEsm": [
+      ".ts"
+    ],
+    "moduleFileExtensions": [
+      "js",
+      "ts"
+    ],
+    "moduleNameMapper": {
+      "^@components(.*)$": "<rootDir>/components$1",
+      "^@lib(.*)$": "<rootDir>/lib$1"
+    }
  }
 }
--- a/pages/[user]/[type].tsx
+++ b/pages/[user]/[type].tsx
@ -1,115 +1,47 @@
 import { useEffect, useState } from "react";
 import { GetServerSideProps } from "next";
 import Head from "next/head";
-import Link from "next/link";
+import { ClockIcon, GlobeIcon, ChevronDownIcon } from "@heroicons/react/solid";
 import prisma from "../../lib/prisma";
 import { useRouter } from "next/router";
-import dayjs, { Dayjs } from "dayjs";
-import {
-  ClockIcon,
-  GlobeIcon,
-  ChevronDownIcon,
-  ChevronLeftIcon,
-  ChevronRightIcon,
-} from "@heroicons/react/solid";
-import isSameOrBefore from "dayjs/plugin/isSameOrBefore";
-import utc from "dayjs/plugin/utc";
-import timezone from "dayjs/plugin/timezone";
-dayjs.extend(isSameOrBefore);
-dayjs.extend(utc);
-dayjs.extend(timezone);
+import { Dayjs } from "dayjs";

 import { collectPageParameters, telemetryEventTypes, useTelemetry } from "../../lib/telemetry";
 import AvailableTimes from "../../components/booking/AvailableTimes";
 import TimeOptions from "../../components/booking/TimeOptions";
 import Avatar from "../../components/Avatar";
 import { timeZone } from "../../lib/clock";
+import DatePicker from "../../components/booking/DatePicker";
+import PoweredByCalendso from "../../components/ui/PoweredByCalendso";

 export default function Type(props): Type {
  // Get router variables
  const router = useRouter();
  const { rescheduleUid } = router.query;

-  // Initialise state
  const [selectedDate, setSelectedDate] = useState<Dayjs>();
-  const [selectedMonth, setSelectedMonth] = useState(dayjs().month());
  const [isTimeOptionsOpen, setIsTimeOptionsOpen] = useState(false);
  const [timeFormat, setTimeFormat] = useState("h:mma");
  const telemetry = useTelemetry();

-  useEffect((): void => {
+  useEffect(() => {
    telemetry.withJitsu((jitsu) => jitsu.track(telemetryEventTypes.pageView, collectPageParameters()));
  }, [telemetry]);

-  // Handle month changes
-  const incrementMonth = () => {
-    setSelectedMonth(selectedMonth + 1);
-  };
-
-  const decrementMonth = () => {
-    setSelectedMonth(selectedMonth - 1);
-  };
-
-  // Set up calendar
-  const daysInMonth = dayjs().month(selectedMonth).daysInMonth();
-  const days = [];
-  for (let i = 1; i <= daysInMonth; i++) {
-    days.push(i);
-  }
-
-  // Create placeholder elements for empty days in first week
-  let weekdayOfFirst = dayjs().month(selectedMonth).date(1).day();
-  if (props.user.weekStart === "Monday") {
-    weekdayOfFirst -= 1;
-    if (weekdayOfFirst < 0) weekdayOfFirst = 6;
-  }
-  const emptyDays = Array(weekdayOfFirst)
-    .fill(null)
-    .map((day, i) => (
-      <div key={`e-${i}`} className={"text-center w-10 h-10 rounded-full mx-auto"}>
-        {null}
-      </div>
-    ));
-
-  const changeDate = (day): void => {
+  const changeDate = (date: Dayjs) => {
    telemetry.withJitsu((jitsu) => jitsu.track(telemetryEventTypes.dateSelected, collectPageParameters()));
-    setSelectedDate(dayjs().month(selectedMonth).date(day));
+    setSelectedDate(date);
  };

-  // Combine placeholder days with actual days
-  const calendar = [
-    ...emptyDays,
-    ...days.map((day) => (
-      <button
-        key={day}
-        onClick={() => changeDate(day)}
-        disabled={
-          selectedMonth < parseInt(dayjs().format("MM")) && dayjs().month(selectedMonth).format("D") > day
-        }
-        className={
-          "text-center w-10 h-10 rounded-full mx-auto " +
-          (dayjs().isSameOrBefore(dayjs().date(day).month(selectedMonth))
-            ? "bg-blue-50 text-blue-600 font-medium"
-            : "text-gray-400 font-light") +
-          (dayjs(selectedDate).month(selectedMonth).format("D") == day
-            ? " bg-blue-600 text-white-important"
-            : "")
-        }>
-        {day}
-      </button>
-    )),
-  ];
-
  const handleSelectTimeZone = (selectedTimeZone: string): void => {
    if (selectedDate) {
      setSelectedDate(selectedDate.tz(selectedTimeZone));
    }
+    setIsTimeOptionsOpen(false);
  };

-  const handleToggle24hClock = (is24hClock: boolean): void => {
-    if (selectedDate) {
-      setTimeFormat(is24hClock ? "HH:mm" : "h:mma");
-    }
+  const handleToggle24hClock = (is24hClock: boolean) => {
+    setTimeFormat(is24hClock ? "HH:mm" : "h:mma");
  };

  return (
@ -190,63 +122,27 @@ export default function Type(props): Type {
              )}
              <p className="text-gray-600 mt-3 mb-8">{props.eventType.description}</p>
            </div>
-            <div
-              className={"mt-8 sm:mt-0 " + (selectedDate ? "sm:w-1/3 border-r sm:px-4" : "sm:w-1/2 sm:pl-4")}>
-              <div className="flex text-gray-600 font-light text-xl mb-4 ml-2">
-                <span className="w-1/2">{dayjs().month(selectedMonth).format("MMMM YYYY")}</span>
-                <div className="w-1/2 text-right">
-                  <button
-                    onClick={decrementMonth}
-                    className={"mr-4 " + (selectedMonth < parseInt(dayjs().format("MM")) && "text-gray-400")}
-                    disabled={selectedMonth < parseInt(dayjs().format("MM"))}>
-                    <ChevronLeftIcon className="w-5 h-5" />
-                  </button>
-                  <button onClick={incrementMonth}>
-                    <ChevronRightIcon className="w-5 h-5" />
-                  </button>
-                </div>
-              </div>
-              <div className="grid grid-cols-7 gap-y-4 text-center">
-                {props.user.weekStart !== "Monday" ? (
-                  <div className="uppercase text-gray-400 text-xs tracking-widest">Sun</div>
-                ) : null}
-                <div className="uppercase text-gray-400 text-xs tracking-widest">Mon</div>
-                <div className="uppercase text-gray-400 text-xs tracking-widest">Tue</div>
-                <div className="uppercase text-gray-400 text-xs tracking-widest">Wed</div>
-                <div className="uppercase text-gray-400 text-xs tracking-widest">Thu</div>
-                <div className="uppercase text-gray-400 text-xs tracking-widest">Fri</div>
-                <div className="uppercase text-gray-400 text-xs tracking-widest">Sat</div>
-                {props.user.weekStart === "Monday" ? (
-                  <div className="uppercase text-gray-400 text-xs tracking-widest">Sun</div>
-                ) : null}
-                {calendar}
-              </div>
-            </div>
+            <DatePicker
+              weekStart={props.user.weekStart}
+              onDatePicked={changeDate}
+              workingHours={props.workingHours}
+              organizerTimeZone={props.eventType.timeZone || props.user.timeZone}
+              inviteeTimeZone={timeZone()}
+              eventLength={props.eventType.length}
+            />
            {selectedDate && (
              <AvailableTimes
+                workingHours={props.workingHours}
                timeFormat={timeFormat}
-                user={props.user}
-                eventType={props.eventType}
+                eventLength={props.eventType.length}
+                eventTypeId={props.eventType.id}
                date={selectedDate}
+                user={props.user}
              />
            )}
          </div>
        </div>
-        {!props.user.hideBranding && (
-          <div className="text-xs text-right pt-1">
-            <Link href="https://calendso.com">
-              <a style={{ color: "#104D86" }} className="opacity-50 hover:opacity-100">
-                powered by{" "}
-                <img
-                  style={{ top: -2 }}
-                  className="w-auto inline h-3 relative"
-                  src="/calendso-logo-word.svg"
-                  alt="Calendso Logo"
-                />
-              </a>
-            </Link>
-          </div>
-        )}
+        {!props.user.hideBranding && <PoweredByCalendso />}
      </main>
    </div>
  );
@ -269,6 +165,7 @@ export const getServerSideProps: GetServerSideProps = async (context) => {
      timeZone: true,
      endTime: true,
      weekStart: true,
+      availability: true,
      hideBranding: true,
    },
  });
@ -291,6 +188,8 @@ export const getServerSideProps: GetServerSideProps = async (context) => {
      title: true,
      description: true,
      length: true,
+      availability: true,
+      timeZone: true,
    },
  });

@ -300,10 +199,27 @@ export const getServerSideProps: GetServerSideProps = async (context) => {
    };
  }

+  const getWorkingHours = (providesAvailability) =>
+    providesAvailability.availability && providesAvailability.availability.length
+      ? providesAvailability.availability
+      : null;
+
+  const workingHours: [] =
+    getWorkingHours(eventType) ||
+    getWorkingHours(user) ||
+    [
+      {
+        days: [0, 1, 2, 3, 4, 5, 6],
+        startTime: user.startTime,
+        endTime: user.endTime,
+      },
+    ].filter((availability): boolean => typeof availability["days"] !== "undefined");
+
  return {
    props: {
      user,
      eventType,
+      workingHours,
    },
  };
 };
--- a/pages/api/availability/eventtype.ts
+++ b/pages/api/availability/eventtype.ts
@ -1,81 +1,111 @@
-import type {NextApiRequest, NextApiResponse} from 'next';
-import {getSession} from 'next-auth/client';
-import prisma from '../../../lib/prisma';
+import type { NextApiRequest, NextApiResponse } from "next";
+import { getSession } from "next-auth/client";
+import prisma from "../../../lib/prisma";

 export default async function handler(req: NextApiRequest, res: NextApiResponse) {
-    const session = await getSession({req: req});
-    if (!session) {
-        res.status(401).json({message: "Not authenticated"});
-        return;
-    }
+  const session = await getSession({ req: req });
+  if (!session) {
+    res.status(401).json({ message: "Not authenticated" });
+    return;
+  }

-    if (req.method == "PATCH" || req.method == "POST") {
-
-        const data = {
-            title: req.body.title,
-            slug: req.body.slug,
-            description: req.body.description,
-            length: parseInt(req.body.length),
-            hidden: req.body.hidden,
-            locations: req.body.locations,
-            eventName: req.body.eventName,
-            customInputs: !req.body.customInputs
-              ? undefined
-              : {
-                  deleteMany: {
-                      eventTypeId: req.body.id,
-                      NOT: {
-                          id: {in: req.body.customInputs.filter(input => !!input.id).map(e => e.id)}
-                      }
-                  },
-                  createMany: {
-                      data: req.body.customInputs.filter(input => !input.id).map(input => ({
-                          type: input.type,
-                          label: input.label,
-                          required: input.required
-                      }))
-                  },
-                  update: req.body.customInputs.filter(input => !!input.id).map(input => ({
-                      data: {
-                          type: input.type,
-                          label: input.label,
-                          required: input.required
-                      },
-                      where: {
-                          id: input.id
-                      }
-                  }))
+  if (req.method == "PATCH" || req.method == "POST") {
+    const data = {
+      title: req.body.title,
+      slug: req.body.slug,
+      description: req.body.description,
+      length: parseInt(req.body.length),
+      hidden: req.body.hidden,
+      locations: req.body.locations,
+      eventName: req.body.eventName,
+      customInputs: !req.body.customInputs
+        ? undefined
+        : {
+            deleteMany: {
+              eventTypeId: req.body.id,
+              NOT: {
+                id: { in: req.body.customInputs.filter((input) => !!input.id).map((e) => e.id) },
              },
-        };
-
-        if (req.method == "POST") {
-            const createEventType = await prisma.eventType.create({
-                data: {
-                    userId: session.user.id,
-                    ...data,
-                },
-            });
-            res.status(200).json({message: 'Event created successfully'});
-        }
-        else if (req.method == "PATCH") {
-            const updateEventType = await prisma.eventType.update({
-                where: {
-                    id: req.body.id,
-                },
-                data,
-            });
-            res.status(200).json({message: 'Event updated successfully'});
-        }
-    }
-
-    if (req.method == "DELETE") {
-
-        const deleteEventType = await prisma.eventType.delete({
-            where: {
-                id: req.body.id,
            },
-        });
+            createMany: {
+              data: req.body.customInputs
+                .filter((input) => !input.id)
+                .map((input) => ({
+                  type: input.type,
+                  label: input.label,
+                  required: input.required,
+                })),
+            },
+            update: req.body.customInputs
+              .filter((input) => !!input.id)
+              .map((input) => ({
+                data: {
+                  type: input.type,
+                  label: input.label,
+                  required: input.required,
+                },
+                where: {
+                  id: input.id,
+                },
+              })),
+          },
+    };

-        res.status(200).json({message: 'Event deleted successfully'});
+    if (req.method == "POST") {
+      await prisma.eventType.create({
+        data: {
+          userId: session.user.id,
+          ...data,
+        },
+      });
+      res.status(200).json({ message: "Event created successfully" });
+    } else if (req.method == "PATCH") {
+      if (req.body.timeZone) {
+        data.timeZone = req.body.timeZone;
+      }
+
+      if (req.body.availability) {
+        const openingHours = req.body.availability.openingHours || [];
+        // const overrides = req.body.availability.dateOverrides || [];
+
+        await prisma.availability.deleteMany({
+          where: {
+            eventTypeId: +req.body.id,
+          },
+        });
+        Promise.all(
+          openingHours.map((schedule) =>
+            prisma.availability.create({
+              data: {
+                eventTypeId: +req.body.id,
+                days: schedule.days,
+                startTime: schedule.startTime,
+                endTime: schedule.endTime,
+              },
+            })
+          )
+        ).catch((error) => {
+          console.log(error);
+        });
+      }
+
+      await prisma.eventType.update({
+        where: {
+          id: req.body.id,
+        },
+        data,
+      });
+      res.status(200).json({ message: "Event updated successfully" });
    }
+  }
+
+  if (req.method == "DELETE") {
+    await prisma.eventType.delete({
+      where: {
+        id: req.body.id,
+      },
+    });
+
+    res.status(200).json({ message: "Event deleted successfully" });
+  }
 }
--- a/pages/api/availability/week.ts
+++ b/pages/api/availability/week.ts
@ -0,0 +1,30 @@
+import type { NextApiRequest, NextApiResponse } from 'next';
+import { getSession } from 'next-auth/client';
+import prisma from '../../../lib/prisma';
+
+export default async function handler(req: NextApiRequest, res: NextApiResponse) {
+  const session = await getSession({req: req});
+
+  if (!session) {
+    res.status(401).json({message: "Not authenticated"});
+    return;
+  }
+
+  if (req.method == "PATCH") {
+
+    const startMins = req.body.start;
+    const endMins = req.body.end;
+
+    const updateWeek = await prisma.schedule.update({
+      where: {
+        id: session.user.id,
+      },
+      data: {
+        startTime: startMins,
+        endTime: endMins
+      },
+    });
+
+    res.status(200).json({message: 'Start and end times updated successfully'});
+  }
+}
--- a/pages/availability/event/[type].tsx
+++ b/pages/availability/event/[type].tsx
@ -1,17 +1,66 @@
+import { GetServerSideProps } from "next";
 import Head from "next/head";
 import Link from "next/link";
 import { useRouter } from "next/router";
-import { useRef, useState } from "react";
+import { useEffect, useRef, useState } from "react";
 import Select, { OptionBase } from "react-select";
-import prisma from "../../../lib/prisma";
-import { LocationType } from "../../../lib/location";
-import Shell from "../../../components/Shell";
-import { getSession, useSession } from "next-auth/client";
-import { LocationMarkerIcon, PhoneIcon, PlusCircleIcon, XIcon } from "@heroicons/react/outline";
-import { EventTypeCustomInput, EventTypeCustomInputType } from "../../../lib/eventTypeInput";
+import prisma from "@lib/prisma";
+import { LocationType } from "@lib/location";
+import Shell from "@components/Shell";
+import { getSession } from "next-auth/client";
+import { Scheduler } from "@components/ui/Scheduler";
+
+import { LocationMarkerIcon, PlusCircleIcon, XIcon, PhoneIcon } from "@heroicons/react/outline";
+import { EventTypeCustomInput, EventTypeCustomInputType } from "@lib/eventTypeInput";
 import { PlusIcon } from "@heroicons/react/solid";

-export default function EventType(props: any): JSX.Element {
+import dayjs from "dayjs";
+import utc from "dayjs/plugin/utc";
+dayjs.extend(utc);
+import timezone from "dayjs/plugin/timezone";
+import { EventType, User, Availability } from "@prisma/client";
+import { validJson } from "@lib/jsonUtils";
+dayjs.extend(timezone);
+
+type Props = {
+  user: User;
+  eventType: EventType;
+  locationOptions: OptionBase[];
+  availability: Availability[];
+};
+
+type OpeningHours = {
+  days: number[];
+  startTime: number;
+  endTime: number;
+};
+
+type DateOverride = {
+  date: string;
+  startTime: number;
+  endTime: number;
+};
+
+type EventTypeInput = {
+  id: number;
+  title: string;
+  slug: string;
+  description: string;
+  length: number;
+  hidden: boolean;
+  locations: unknown;
+  eventName: string;
+  customInputs: EventTypeCustomInput[];
+  timeZone: string;
+  availability?: { openingHours: OpeningHours[]; dateOverrides: DateOverride[] };
+};
+
+export default function EventTypePage({
+  user,
+  eventType,
+  locationOptions,
+  availability,
+}: Props): JSX.Element {
  const router = useRouter();

  const inputOptions: OptionBase[] = [
@ -21,17 +70,17 @@ export default function EventType(props: any): JSX.Element {
    { value: EventTypeCustomInputType.Bool, label: "Checkbox" },
  ];

-  const [, loading] = useSession();
+  const [enteredAvailability, setEnteredAvailability] = useState();
  const [showLocationModal, setShowLocationModal] = useState(false);
  const [showAddCustomModal, setShowAddCustomModal] = useState(false);
+  const [selectedTimeZone, setSelectedTimeZone] = useState("");
  const [selectedLocation, setSelectedLocation] = useState<OptionBase | undefined>(undefined);
  const [selectedInputOption, setSelectedInputOption] = useState<OptionBase>(inputOptions[0]);
+  const [locations, setLocations] = useState(eventType.locations || []);
  const [selectedCustomInput, setSelectedCustomInput] = useState<EventTypeCustomInput | undefined>(undefined);
-  const [locations, setLocations] = useState(props.eventType.locations || []);
  const [customInputs, setCustomInputs] = useState<EventTypeCustomInput[]>(
-    props.eventType.customInputs.sort((a, b) => a.id - b.id) || []
+    eventType.customInputs.sort((a, b) => a.id - b.id) || []
  );
-  const locationOptions = props.locationOptions;

  const titleRef = useRef<HTMLInputElement>();
  const slugRef = useRef<HTMLInputElement>();
@ -40,34 +89,41 @@ export default function EventType(props: any): JSX.Element {
  const isHiddenRef = useRef<HTMLInputElement>();
  const eventNameRef = useRef<HTMLInputElement>();

-  if (loading) {
-    return <p className="text-gray-400">Loading...</p>;
-  }
+  useEffect(() => {
+    setSelectedTimeZone(eventType.timeZone || user.timeZone);
+  }, []);

  async function updateEventTypeHandler(event) {
    event.preventDefault();

-    const enteredTitle = titleRef.current.value;
-    const enteredSlug = slugRef.current.value;
-    const enteredDescription = descriptionRef.current.value;
-    const enteredLength = lengthRef.current.value;
-    const enteredIsHidden = isHiddenRef.current.checked;
-    const enteredEventName = eventNameRef.current.value;
+    const enteredTitle: string = titleRef.current.value;
+    const enteredSlug: string = slugRef.current.value;
+    const enteredDescription: string = descriptionRef.current.value;
+    const enteredLength: number = parseInt(lengthRef.current.value);
+    const enteredIsHidden: boolean = isHiddenRef.current.checked;
+    const enteredEventName: string = eventNameRef.current.value;
    // TODO: Add validation

+    const payload: EventTypeInput = {
+      id: eventType.id,
+      title: enteredTitle,
+      slug: enteredSlug,
+      description: enteredDescription,
+      length: enteredLength,
+      hidden: enteredIsHidden,
+      locations,
+      eventName: enteredEventName,
+      customInputs,
+      timeZone: selectedTimeZone,
+    };
+
+    if (enteredAvailability) {
+      payload.availability = enteredAvailability;
+    }
+
    await fetch("/api/availability/eventtype", {
      method: "PATCH",
-      body: JSON.stringify({
-        id: props.eventType.id,
-        title: enteredTitle,
-        slug: enteredSlug,
-        description: enteredDescription,
-        length: enteredLength,
-        hidden: enteredIsHidden,
-        locations,
-        eventName: enteredEventName,
-        customInputs,
-      }),
+      body: JSON.stringify(payload),
      headers: {
        "Content-Type": "application/json",
      },
@ -81,7 +137,7 @@ export default function EventType(props: any): JSX.Element {

    await fetch("/api/availability/eventtype", {
      method: "DELETE",
-      body: JSON.stringify({ id: props.eventType.id }),
+      body: JSON.stringify({ id: eventType.id }),
      headers: {
        "Content-Type": "application/json",
      },
@ -106,6 +162,30 @@ export default function EventType(props: any): JSX.Element {
    setSelectedCustomInput(undefined);
  };

+  const updateLocations = (e) => {
+    e.preventDefault();
+
+    let details = {};
+    if (e.target.location.value === LocationType.InPerson) {
+      details = { address: e.target.address.value };
+    }
+
+    const existingIdx = locations.findIndex((loc) => e.target.location.value === loc.type);
+    if (existingIdx !== -1) {
+      const copy = locations;
+      copy[existingIdx] = { ...locations[existingIdx], ...details };
+      setLocations(copy);
+    } else {
+      setLocations(locations.concat({ type: e.target.location.value, ...details }));
+    }
+
+    setShowLocationModal(false);
+  };
+
+  const removeLocation = (selectedLocation) => {
+    setLocations(locations.filter((location) => location.type !== selectedLocation.type));
+  };
+
  const openEditCustomModel = (customInput: EventTypeCustomInput) => {
    setSelectedCustomInput(customInput);
    setSelectedInputOption(inputOptions.find((e) => e.value === customInput.type));
@ -147,30 +227,6 @@ export default function EventType(props: any): JSX.Element {
    return null;
  };

-  const updateLocations = (e) => {
-    e.preventDefault();
-
-    let details = {};
-    if (e.target.location.value === LocationType.InPerson) {
-      details = { address: e.target.address.value };
-    }
-
-    const existingIdx = locations.findIndex((loc) => e.target.location.value === loc.type);
-    if (existingIdx !== -1) {
-      const copy = locations;
-      copy[existingIdx] = { ...locations[existingIdx], ...details };
-      setLocations(copy);
-    } else {
-      setLocations(locations.concat({ type: e.target.location.value, ...details }));
-    }
-
-    setShowLocationModal(false);
-  };
-
-  const removeLocation = (selectedLocation) => {
-    setLocations(locations.filter((location) => location.type !== selectedLocation.type));
-  };
-
  const updateCustom = (e) => {
    e.preventDefault();

@ -207,13 +263,13 @@ export default function EventType(props: any): JSX.Element {
  return (
    <div>
      <Head>
-        <title>{props.eventType.title} | Event Type | Calendso</title>
+        <title>{eventType.title} | Event Type | Calendso</title>
        <link rel="icon" href="/favicon.ico" />
      </Head>
-      <Shell heading={"Event Type - " + props.eventType.title}>
-        <div>
-          <div className="mb-8">
-            <div className="bg-white overflow-hidden shadow rounded-lg">
+      <Shell heading={"Event Type - " + eventType.title}>
+        <div className="grid grid-cols-3 gap-4">
+          <div className="col-span-3 sm:col-span-2">
+            <div className="bg-white overflow-hidden shadow rounded-lg mb-4">
              <div className="px-4 py-5 sm:p-6">
                <form onSubmit={updateEventTypeHandler}>
                  <div className="mb-4">
@ -229,7 +285,7 @@ export default function EventType(props: any): JSX.Element {
                        required
                        className="shadow-sm focus:ring-blue-500 focus:border-blue-500 block w-full sm:text-sm border-gray-300 rounded-md"
                        placeholder="Quick Chat"
-                        defaultValue={props.eventType.title}
+                        defaultValue={eventType.title}
                      />
                    </div>
                  </div>
@ -240,7 +296,7 @@ export default function EventType(props: any): JSX.Element {
                    <div className="mt-1">
                      <div className="flex rounded-md shadow-sm">
                        <span className="inline-flex items-center px-3 rounded-l-md border border-r-0 border-gray-300 bg-gray-50 text-gray-500 sm:text-sm">
-                          {location.hostname}/{props.user.username}/
+                          {typeof location !== "undefined" ? location.hostname : ""}/{user.username}/
                        </span>
                        <input
                          ref={slugRef}
@ -249,7 +305,7 @@ export default function EventType(props: any): JSX.Element {
                          id="slug"
                          required
                          className="flex-1 block w-full focus:ring-blue-500 focus:border-blue-500 min-w-0 rounded-none rounded-r-md sm:text-sm border-gray-300"
-                          defaultValue={props.eventType.slug}
+                          defaultValue={eventType.slug}
                        />
                      </div>
                    </div>
@ -390,7 +446,7 @@ export default function EventType(props: any): JSX.Element {
                        id="description"
                        className="shadow-sm focus:ring-blue-500 focus:border-blue-500 block w-full sm:text-sm border-gray-300 rounded-md"
                        placeholder="A quick video meeting."
-                        defaultValue={props.eventType.description}></textarea>
+                        defaultValue={eventType.description}></textarea>
                    </div>
                  </div>
                  <div className="mb-4">
@ -406,7 +462,7 @@ export default function EventType(props: any): JSX.Element {
                        required
                        className="focus:ring-blue-500 focus:border-blue-500 block w-full pr-20 sm:text-sm border-gray-300 rounded-md"
                        placeholder="15"
-                        defaultValue={props.eventType.length}
+                        defaultValue={eventType.length}
                      />
                      <div className="absolute inset-y-0 right-0 pr-3 flex items-center text-gray-400 text-sm">
                        minutes
@ -425,7 +481,7 @@ export default function EventType(props: any): JSX.Element {
                        id="title"
                        className="shadow-sm focus:ring-blue-500 focus:border-blue-500 block w-full sm:text-sm border-gray-300 rounded-md"
                        placeholder="Meeting with {USER}"
-                        defaultValue={props.eventType.eventName}
+                        defaultValue={eventType.eventName}
                      />
                    </div>
                  </div>
@ -484,7 +540,7 @@ export default function EventType(props: any): JSX.Element {
                          name="ishidden"
                          type="checkbox"
                          className="focus:ring-blue-500 h-4 w-4 text-blue-600 border-gray-300 rounded"
-                          defaultChecked={props.eventType.hidden}
+                          defaultChecked={eventType.hidden}
                        />
                      </div>
                      <div className="ml-3 text-sm">
@ -497,12 +553,24 @@ export default function EventType(props: any): JSX.Element {
                      </div>
                    </div>
                  </div>
-                  <button type="submit" className="btn btn-primary">
-                    Update
-                  </button>
-                  <Link href="/availability">
-                    <a className="ml-2 btn btn-white">Cancel</a>
-                  </Link>
+                  <hr className="my-4" />
+                  <div>
+                    <h3 className="mb-2">How do you want to offer your availability for this event type?</h3>
+                    <Scheduler
+                      setAvailability={setEnteredAvailability}
+                      setTimeZone={setSelectedTimeZone}
+                      timeZone={selectedTimeZone}
+                      availability={availability}
+                    />
+                    <div className="py-4 flex justify-end">
+                      <Link href="/availability">
+                        <a className="mr-2 btn btn-white">Cancel</a>
+                      </Link>
+                      <button type="submit" className="btn btn-primary">
+                        Update
+                      </button>
+                    </div>
+                  </div>
                </form>
              </div>
            </div>
@ -649,9 +717,7 @@ export default function EventType(props: any): JSX.Element {
                      Is required
                    </label>
                  </div>
-
                  <input type="hidden" name="id" id="id" value={selectedCustomInput?.id} />
-
                  <div className="mt-5 sm:mt-4 sm:flex sm:flex-row-reverse">
                    <button type="submit" className="btn btn-primary">
                      Save
@ -670,32 +736,55 @@ export default function EventType(props: any): JSX.Element {
  );
 }

-const validJson = (jsonString: string) => {
-  try {
-    const o = JSON.parse(jsonString);
-    if (o && typeof o === "object") {
-      return o;
-    }
-  } catch (e) {
-    console.log("Invalid JSON:", e);
-  }
-  return false;
-};
-
-export async function getServerSideProps(context) {
-  const session = await getSession(context);
+export const getServerSideProps: GetServerSideProps<Props> = async ({ req, query }) => {
+  const session = await getSession({ req });
  if (!session) {
-    return { redirect: { permanent: false, destination: "/auth/login" } };
+    return {
+      redirect: {
+        permanent: false,
+        destination: "/auth/login",
+      },
+    };
  }
-  const user = await prisma.user.findFirst({
+
+  const user: User = await prisma.user.findFirst({
    where: {
      email: session.user.email,
    },
    select: {
      username: true,
+      timeZone: true,
+      startTime: true,
+      endTime: true,
+      availability: true,
    },
  });

+  const eventType: EventType | null = await prisma.eventType.findUnique({
+    where: {
+      id: parseInt(query.type as string),
+    },
+    select: {
+      id: true,
+      title: true,
+      slug: true,
+      description: true,
+      length: true,
+      hidden: true,
+      locations: true,
+      eventName: true,
+      availability: true,
+      customInputs: true,
+      timeZone: true,
+    },
+  });
+
+  if (!eventType) {
+    return {
+      notFound: true,
+    };
+  }
+
  const credentials = await prisma.credential.findMany({
    where: {
      userId: user.id,
@ -747,28 +836,26 @@ export async function getServerSideProps(context) {
    // Assuming it's Microsoft Teams.
  }

-  const eventType = await prisma.eventType.findUnique({
-    where: {
-      id: parseInt(context.query.type),
-    },
-    select: {
-      id: true,
-      title: true,
-      slug: true,
-      description: true,
-      length: true,
-      hidden: true,
-      locations: true,
-      eventName: true,
-      customInputs: true,
-    },
-  });
+  const getAvailability = (providesAvailability) =>
+    providesAvailability.availability && providesAvailability.availability.length
+      ? providesAvailability.availability
+      : null;
+
+  const availability: Availability[] = getAvailability(eventType) ||
+    getAvailability(user) || [
+      {
+        days: [0, 1, 2, 3, 4, 5, 6],
+        startTime: user.startTime,
+        endTime: user.endTime,
+      },
+    ];

  return {
    props: {
      user,
      eventType,
      locationOptions,
+      availability,
    },
  };
-}
+};
--- a/prisma/migrations/20210630014738_schedule_availability/migration.sql
+++ b/prisma/migrations/20210630014738_schedule_availability/migration.sql
@ -0,0 +1,22 @@
+-- AlterTable
+ALTER TABLE "EventType" ADD COLUMN     "timeZone" TEXT;
+
+-- CreateTable
+CREATE TABLE "Availability" (
+    "id" SERIAL NOT NULL,
+    "label" TEXT,
+    "userId" INTEGER,
+    "eventTypeId" INTEGER,
+    "days" INTEGER[],
+    "startTime" INTEGER NOT NULL,
+    "endTime" INTEGER NOT NULL,
+    "date" DATE,
+
+    PRIMARY KEY ("id")
+);
+
+-- AddForeignKey
+ALTER TABLE "Availability" ADD FOREIGN KEY ("userId") REFERENCES "users"("id") ON DELETE SET NULL ON UPDATE CASCADE;
+
+-- AddForeignKey
+ALTER TABLE "Availability" ADD FOREIGN KEY ("eventTypeId") REFERENCES "EventType"("id") ON DELETE SET NULL ON UPDATE CASCADE;
--- a/prisma/schema.prisma
+++ b/prisma/schema.prisma
@ -21,8 +21,10 @@ model EventType {
  user          User?   @relation(fields: [userId], references: [id])
  userId        Int?
  bookings      Booking[]
+  availability  Availability[]
  eventName     String?
  customInputs  EventTypeCustomInput[]
+  timeZone      String?
 }

 model Credential {
@ -53,7 +55,9 @@ model User {
  credentials   Credential[]
  teams         Membership[]
  bookings      Booking[]
+  availability  Availability[]
  selectedCalendars      SelectedCalendar[]
+
  @@map(name: "users")
 }

@ -126,6 +130,19 @@ model Booking {
  updatedAt     DateTime?
 }

+model Availability {
+  id            Int        @default(autoincrement()) @id
+  label         String?
+  user          User?      @relation(fields: [userId], references: [id])
+  userId        Int?
+  eventType     EventType? @relation(fields: [eventTypeId], references: [id])
+  eventTypeId   Int?
+  days          Int[]
+  startTime     Int
+  endTime       Int
+  date          DateTime?  @db.Date
+}
+
 model SelectedCalendar {
  user          User       @relation(fields: [userId], references: [id])
  userId        Int
@ -150,4 +167,3 @@ model ResetPasswordRequest {
  email      String
  expires    DateTime
 }
-
--- a/styles/globals.css
+++ b/styles/globals.css
@ -135,4 +135,24 @@ body {

 #timeZone input:focus {
    box-shadow: none;
+}
+
+.weekdaySelect {
+    font-family: "Courier New", sans-serif;
+}
+
+.weekdaySelect button.active:first-child {
+    margin-left: -1px !important;
+}
+
+.weekdaySelect button:not(.active) {
+    padding-left: calc(0.5rem + 0px);
+    margin-right: 1px;
+}
+
+.weekdaySelect button.active + button.active {
+    border-color: rgba(3, 169, 244, var(--tw-border-opacity))
+                  rgba(3, 169, 244, var(--tw-border-opacity))
+                  rgba(3, 169, 244, var(--tw-border-opacity))
+                  white;
 }
--- a/test/lib/slots.test.ts
+++ b/test/lib/slots.test.ts
@ -0,0 +1,56 @@
+import getSlots from '@lib/slots';
+import {it, expect} from '@jest/globals';
+import MockDate from 'mockdate';
+import dayjs, {Dayjs} from 'dayjs';
+import utc from 'dayjs/plugin/utc';
+import timezone from 'dayjs/plugin/timezone';
+dayjs.extend(utc);
+dayjs.extend(timezone);
+
+MockDate.set('2021-06-20T11:59:59Z');
+
+it('can fit 24 hourly slots for an empty day', async () => {
+  // 24h in a day.
+  expect(getSlots({
+    inviteeDate: dayjs().add(1, 'day'),
+    frequency: 60,
+    workingHours: [
+      { days: [...Array(7).keys()], startTime: 0, endTime: 1440 }
+    ],
+    organizerTimeZone: 'Europe/London'
+  })).toHaveLength(24);
+});
+
+it('only shows future booking slots on the same day', async () => {
+  // The mock date is 1s to midday, so 12 slots should be open given 0 booking notice.
+  expect(getSlots({
+    inviteeDate: dayjs(),
+    frequency: 60,
+    workingHours: [
+      { days: [...Array(7).keys()], startTime: 0, endTime: 1440 }
+    ],
+    organizerTimeZone: 'GMT'
+  })).toHaveLength(12);
+});
+
+it('can cut off dates that due to invitee timezone differences fall on the next day', async () => {
+  expect(getSlots({
+    inviteeDate: dayjs().tz('Europe/Amsterdam').startOf('day'), // time translation +01:00
+    frequency: 60,
+    workingHours: [
+      { days: [0], startTime: 1380, endTime: 1440 }
+    ],
+    organizerTimeZone: 'Europe/London'
+  })).toHaveLength(0);
+});
+
+it('can cut off dates that due to invitee timezone differences fall on the previous day', async () => {
+  expect(getSlots({
+    inviteeDate: dayjs().startOf('day'), // time translation -01:00
+    frequency: 60,
+    workingHours: [
+      { days: [0], startTime: 0, endTime: 60 }
+    ],
+    organizerTimeZone: 'Europe/London'
+  })).toHaveLength(0);
+});
--- a/tsconfig.json
+++ b/tsconfig.json
@ -6,6 +6,11 @@
      "dom.iterable",
      "esnext"
    ],
+    "baseUrl": ".",
+    "paths": {
+      "@components/*": ["components/*"],
+      "@lib/*": ["lib/*"]
+    },
    "allowJs": true,
    "skipLibCheck": true,
    "strict": false,
--- a/yarn.lock
+++ b/yarn.lock