deguapp/frontend/app/signup.js

import { StyleSheet, TextInput, View, Text, Image } from "react-native";
import { useState } from "react";
import Button from "../components/Button";
import { colors } from "../components/style";
import { Link, router } from "expo-router";
import { LinearGradient } from "expo-linear-gradient";
import { Animated } from "react-native";

import { useAuth } from "./context/AuthContext";

function SignupPage() {
	const [pass1, setPass1] = useState("");
	const [pass2, setPass2] = useState("");
	const [email, setEmail] = useState("");
	const [username, setUsername] = useState("");
	const { onSignin } = useAuth();

	async function signin() {
		if (pass1 != pass2) {
			alert("Passwords are not same!");
			return;
		}

		const res = await onSignin(username, email, pass1);
		const data = await res.json();

		if (res.status == 400) {
			if (data.message == "validation error") {
				alert(data.data.message);
			} else {
				alert("Something went wrong");
			}
			return;
		}

		if (res.status == 201) {
			alert("You have been successfully registered. Please Log In");
			router.replace("/login");
			return;
		}
	}

	return (
		<View style={styles.container}>
			<AnimatedLinearGradient
				colors={[colors.dark, colors.darkSecondary]}
				style={styles.gradient}
			/>
			<View style={styles.header}>
				<Image
					source={require("../assets/deguapp_logo.png")}
					style={styles.logo}
				/>
				<Text style={styles.h1}>Please Sign Up</Text>
			</View>

			<View style={styles.form}>
				<TextInput
					style={styles.input}
					placeholder="Enter your username"
					placeholderTextColor={"#aaaaaa"}
					returnKeyType="done"
					value={username}
					onChangeText={(username) => setUsername(username)}
				/>
				<TextInput
					style={styles.input}
					placeholder="Enter your email"
					autoCapitalize="none"
					autoCompleteType="email"
					textContentType="emailAddress"
					keyboardType="email-address"
					placeholderTextColor={"#aaaaaa"}
					returnKeyType="next"
					value={email}
					onChangeText={(email) => setEmail(email)}
				/>
				<TextInput
					style={styles.input}
					secureTextEntry={true}
					placeholder="Enter your password"
					placeholderTextColor={"#aaaaaa"}
					returnKeyType="done"
					value={pass1}
					onChangeText={(pass1) => setPass1(pass1)}
				/>
				<TextInput
					style={styles.input}
					secureTextEntry={true}
					placeholder="Enter your password"
					placeholderTextColor={"#aaaaaa"}
					returnKeyType="done"
					value={pass2}
					onChangeText={(pass2) => setPass2(pass2)}
				/>
				<Button
					style={styles.button}
					title="Sign Up"
					color={colors.gold}
					onPress={signin}
				/>
				<Link href="/login" style={styles.login}>
					Already have an account? Log In!
				</Link>
			</View>
		</View>
	);
}

const AnimatedLinearGradient = Animated.createAnimatedComponent(LinearGradient);

const styles = StyleSheet.create({
	container: {
		width: "100%",
		height: "100%",
		backgroundColor: colors.dark,
		justifyContent: "center",
		alignItems: "center",
		maxHeight: "100%",
	},
	form: {
		flex: 1,
		alignItems: "center",
		width: "100%",
		gap: 15,
	},
	h1: {
		color: "#FFF",
		fontSize: 30,
		textAlign: "center",
		paddingTop: "3%",
		paddingBottom: "3%",
	},
	logo: {
		width: "80%",
		resizeMode: "contain",
		marginTop: "15%",
	},
	header: {
		width: "100%",
		alignItems: "center",
	},
	input: {
		height: "auto",
		width: "60%",
		borderColor: "gray",
		borderWidth: 1,
		borderRadius: 10,
		padding: 13,
		color: "#fff",
	},
	btnContainer: {
		flexDirection: "row",
		gap: 5,
	},
	login: {
		color: "#FFF",
		fontStyle: "italic",
		textDecorationLine: "underline",
		fontSize: 14,
		marginTop: 10,
	},
	gradient: {
		position: "absolute",
		left: 0,
		right: 0,
		top: 0,
		height: "100%",
	},
});

export default SignupPage;