Name generation and gradient calculation

crabfit-frontend/src/pages/Event/Event.tsx

@@ -1,6 +1,6 @@
 import { Link } from 'react-router-dom';
 import { useForm } from 'react-hook-form';
-import { useState, useEffect } from 'react';
+import { useState, useEffect, useCallback } from 'react';
 
 import {
 	Center,
@@ -11,6 +11,7 @@ import {
 	Legend,
 	AvailabilityViewer,
 	AvailabilityEditor,
+	Error,
 } from 'components';
 
 import {
@@ -40,13 +41,27 @@ const Event = (props) => {
 	const [password, setPassword] = useState(null);
 	const [tab, setTab] = useState(user ? 'you' : 'group');
 	const [isLoading, setIsLoading] = useState(true);
+	const [isLoginLoading, setIsLoginLoading] = useState(false);
+	const [error, setError] = useState(null);
 	const [event, setEvent] = useState(null);
 	const [people, setPeople] = useState([]);
 
+	const [min, setMin] = useState(0);
+	const [max, setMax] = useState(0);
+
+	const fetchPeople = useCallback(async () => {
+		try {
+			const response = await api.get(`/event/${id}/people`);
+			setPeople(response.data.people);
+		} catch (e) {
+			console.error(e);
+		}
+	}, [id]);
+
 	useEffect(() => {
 		const fetchEvent = async () => {
-			const response = await api.get(`/event/${id}`);
-			if (response.status === 200) {
+			try {
+				const response = await api.get(`/event/${id}`);
 				let times = [];
 				for (let i = response.data.startTime; i < response.data.endTime; i++) {
 					let hour = `${i}`.padStart(2, '0');
@@ -63,26 +78,93 @@ const Event = (props) => {
 					times,
 				});
 				setIsLoading(false);
-			} else {
-				console.error(response);
+			} catch (e) {
+				console.error(e);
 				//TODO: 404
 			}
 		};
 
-		const fetchPeople = async () => {
-			const response = await api.get(`/event/${id}/people`);
-			if (response.status === 200) {
-				setPeople(response.data.people);
-			} else {
-				console.error(response);
-			}
-		};
-
 		fetchEvent();
 		fetchPeople();
-	}, [id]);
+	}, [fetchPeople, id]);
 
-	const onSubmit = data => console.log('submit', data);
+	useEffect(() => {
+		if (tab === 'group') {
+			fetchPeople();
+		}
+	}, [fetchPeople, tab]);
+
+	useEffect(() => {
+		if (event && !!people.length) {
+			const datetimes = event.dates.reduce(
+				(dates, date) => {
+					let times = [];
+					event.times.forEach(time => {
+						times.push(`${time}-${date}`);
+					});
+					return [...dates, ...times];
+				}
+				, []
+			);
+			setMin(datetimes.reduce((min, time) => {
+					let total = people.reduce(
+						(total, person) => person.availability.includes(time) ? total+1 : total,
+						0
+					);
+					return total < min ? total : min;
+				},
+				Infinity
+			));
+			setMax(datetimes.reduce((max, time) => {
+					let total = people.reduce(
+						(total, person) => person.availability.includes(time) ? total+1 : total,
+						0
+					);
+					return total > max ? total : max;
+				},
+				-Infinity
+			));
+		}
+	}, [event, people]);
+
+	const onSubmit = async data => {
+		setIsLoginLoading(true);
+		setError(null);
+		try {
+			const response = await api.post(`/event/${id}/people/${data.name}`, {
+				person: {
+					password: data.password,
+				},
+			});
+			setPassword(data.password);
+			setUser(response.data);
+			setTab('you');
+		} catch (e) {
+			if (e.status === 401) {
+				setError('Password is incorrect. Check your name is spelled right.');
+			} else if (e.status === 404) {
+				// Create user
+				try {
+					await api.post(`/event/${id}/people`, {
+						person: {
+							name: data.name,
+							password: data.password,
+						},
+					});
+					setPassword(data.password);
+					setUser({
+						name: data.name,
+						availability: [],
+					});
+					setTab('you');
+				} catch (e) {
+					setError('Failed to create user. Please try again.');
+				}
+			}
+		} finally {
+			setIsLoginLoading(false);
+		}
+	};
 
 	return (
 		<>
@@ -92,6 +174,7 @@ const Event = (props) => {
 						<Logo src={logo} alt="" />
 						<Title>CRAB FIT</Title>
 					</Center>
+					<Center style={{ textDecoration: 'underline', fontSize: 14, paddingTop: 6 }}>Create your own</Center>
 				</Link>
 
 				<EventName isLoading={isLoading}>{event?.name}</EventName>
@@ -105,7 +188,9 @@ const Event = (props) => {
 
 			<LoginSection id="login">
 				<StyledMain>
-					{!user && (
+					{user ? (
+						<h2>Signed in as {user.name}</h2>
+					) : (
 						<>
 							<h2>Sign in to add your availability</h2>
 							<LoginForm onSubmit={handleSubmit(onSubmit)}>
@@ -129,8 +214,12 @@ const Event = (props) => {
 								/>
 
 								<Button
+									type="submit"
+									isLoading={isLoginLoading}
+									disabled={isLoginLoading || isLoading}
 								>Login</Button>
 							</LoginForm>
+							{error && <Error onClose={() => setError(null)}>{error}</Error>}
 							<Info>These details are only for this event. Use a password to prevent others from changing your availability.</Info>
 						</>
 					)}
@@ -175,13 +264,19 @@ const Event = (props) => {
 			{tab === 'group' ? (
 				<section id="group">
 					<StyledMain>
-						<Legend min={0} max={people.length} />
+						<Legend
+							min={min}
+							max={max}
+							total={people.filter(p => p.availability.length > 0).length}
+						/>
 						<Center>Hover or tap the calendar below to see who is available</Center>
 					</StyledMain>
 					<AvailabilityViewer
 						dates={event?.dates ?? []}
 						times={event?.times ?? []}
-						people={people}
+						people={people.filter(p => p.availability.length > 0)}
+						min={min}
+						max={max}
 					/>
 				</section>
 			) : (

crabfit-frontend/src/pages/Home/Home.tsx

@@ -2,6 +2,10 @@ import { useEffect, useState } from 'react';
 import { useHistory } from 'react-router-dom';
 import { useForm } from 'react-hook-form';
 
+import dayjs from 'dayjs';
+import utc from 'dayjs/plugin/utc';
+import timezone from 'dayjs/plugin/timezone';
+
 import {
 	TextField,
 	CalendarField,
@@ -34,6 +38,9 @@ import api from 'services';
 import logo from 'res/logo.svg';
 import timezones from 'res/timezones.json';
 
+dayjs.extend(utc);
+dayjs.extend(timezone);
+
 const Home = () => {
 	const { register, handleSubmit } = useForm({
 		defaultValues: {
@@ -51,9 +58,11 @@ const Home = () => {
 
 	useEffect(() => {
 		const fetch = async () => {
-			const response = await api.get('/stats');
-			if (response.status === 200) {
+			try {
+				const response = await api.get('/stats');
 				setStats(response.data);
+			} catch (e) {
+				console.error(e);
 			}
 		};
 
@@ -65,23 +74,20 @@ const Home = () => {
 		setError(null);
 		try {
 			const times = JSON.parse(data.times);
+			const dates = JSON.parse(data.dates);
+
+			const start = dayjs().tz(data.timezone).hour(times.start);
+			const end = dayjs().tz(data.timezone).hour(times.end);
+
 			const response = await api.post('/event', {
 				event: {
 					name: data.name,
-					timezone: data.timezone,
-					startTime: times.start,
-					endTime: times.end,
-					dates: JSON.parse(data.dates),
+					startTime: start.utc().hour(),
+					endTime: end.utc().hour(),
+					dates: dates,
 				},
 			});
-
-			if (response.status === 201) {
-				// Success
-				push(`/${response.data.id}`);
-			} else {
-				setError('An error ocurred while creating the event. Please try again later.');
-				console.error(response.status);
-			}
+			push(`/${response.data.id}`);
 		} catch (e) {
 			setError('An error ocurred while creating the event. Please try again later.');
 			console.error(e);
@@ -164,7 +170,7 @@ const Home = () => {
 					</Stats>
 					<P>Crab Fit helps you fit your event around everyone's schedules. Simply create an event above and send the link to everyone that is participating. Results update live and you will be able to see a heat-map of when everyone is free.</P>
 					{/* eslint-disable-next-line */}
-					<P>Create by <a href="https://bengrant.dev" target="_blank">Ben Grant</a>, Crab Fit is the modern-day solution to your group event planning debates.</P>
+					<P>Created by <a href="https://bengrant.dev" target="_blank">Ben Grant</a>, Crab Fit is the modern-day solution to your group event planning debates.</P>
 					<P>The code for Crab Fit is open source, if you find any issues or want to contribute, you can visit the <a href="https://github.com/GRA0007/crab.fit" target="_blank" rel="noreferrer">repository</a>.</P>
 				</StyledMain>
 			</AboutSection>