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Merge Jose (update) to Sarah (Initial) #15

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5ea40ab
sarah
KarstonM-School Sep 17, 2025
691ea2c
john
KarstonM-School Sep 17, 2025
ca2b4cf
Merge pull request #1 from KarstonM-School/login-screen-update
KarstonM-School Sep 17, 2025
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387 changes: 194 additions & 193 deletions src/pages/Login.tsx
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Original file line number Diff line number Diff line change
@@ -1,200 +1,201 @@
import { useIsFocused } from '@react-navigation/native';
import { StackScreenProps } from '@react-navigation/stack';
import { LinearGradient } from 'expo-linear-gradient';
import { StatusBar } from 'expo-status-bar';
import React, { useContext, useEffect, useState } from 'react';
import { Alert, Image, StyleSheet, Text, TextInput, View } from 'react-native';
import { KeyboardAwareScrollView } from 'react-native-keyboard-aware-scroll-view';
import Spinner from 'react-native-loading-spinner-overlay';
import BigButton from '../components/BigButton';
import Spacer from '../components/Spacer';
import { AuthenticationContext } from '../context/AuthenticationContext';
import logoImg from '../images/logo.png';
import * as api from '../services/api';
import { getFromCache, setInCache } from '../services/caching';
import { User } from '../types/User';
import { isTokenExpired, sanitizeEmail, validateEmail } from '../utils';
import { useIsFocused } from "@react-navigation/native";
import { StackScreenProps } from "@react-navigation/stack";
import { LinearGradient } from "expo-linear-gradient";
import { StatusBar } from "expo-status-bar";
import React, { useContext, useEffect, useState } from "react";
import { Alert, Image, StyleSheet, Text, TextInput, View } from "react-native";
import { KeyboardAwareScrollView } from "react-native-keyboard-aware-scroll-view";
import Spinner from "react-native-loading-spinner-overlay";
import BigButton from "../components/BigButton";
import Spacer from "../components/Spacer";
import { AuthenticationContext } from "../context/AuthenticationContext";
import logoImg from "../images/logo.png";
import * as api from "../services/api";
import { getFromCache, setInCache } from "../services/caching";
import { User } from "../types/User";
import { isTokenExpired, sanitizeEmail, validateEmail } from "../utils";

export default function Login({ navigation }: StackScreenProps<any>) {
const authenticationContext = useContext(AuthenticationContext);
const [email, setEmail] = useState('');
const [password, setPassword] = useState('');
const [emailIsInvalid, setEmailIsInvalid] = useState<boolean>();
const [passwordIsInvalid, setPasswordIsInvalid] = useState<boolean>();
const [authError, setAuthError] = useState<string>();

const [accessTokenIsValid, setAccessTokenIsValid] = useState<boolean>(false);
const [isAuthenticating, setIsAuthenticating] = useState<boolean>(false);
const isFocused = useIsFocused();

useEffect(() => {
getFromCache('userInfo').then(
(cachedUserInfo) => authenticationContext?.setValue(cachedUserInfo as User),
(error: any) => console.log(error)
);
getFromCache('accessToken').then(
(accessToken) => accessToken && !isTokenExpired(accessToken as string) && setAccessTokenIsValid(true),
(error: any) => console.log(error)
);
if (authError)
Alert.alert('Authentication Error', authError, [{ text: 'Ok', onPress: () => setAuthError(undefined) }]);
}, [authError]);

useEffect(() => {
if (accessTokenIsValid && authenticationContext?.value) navigation.navigate('EventsMap');
}, [accessTokenIsValid]);

const handleAuthentication = () => {
if (formIsValid()) {
setIsAuthenticating(true);
api.authenticateUser(sanitizeEmail(email), password)
.then((response) => {
setInCache('userInfo', response.data.user);
setInCache('accessToken', response.data.accessToken);
authenticationContext?.setValue(response.data.user);
setIsAuthenticating(false);
123;
navigation.navigate('EventsMap');
})
.catch((error) => {
if (error.response) {
setAuthError(error.response.data);
} else {
setAuthError('Something went wrong.');
}
setIsAuthenticating(false);
});
}
};

const formIsValid = () => {
const emailIsValid = !isEmailInvalid();
const passwordIsValid = !isPasswordInvalid();
return emailIsValid && passwordIsValid;
};

const isPasswordInvalid = (): boolean => {
const invalidCheck = password.length < 6;
setPasswordIsInvalid(invalidCheck);
return invalidCheck ? true : false;
};

const isEmailInvalid = (): boolean => {
const invalidCheck = !validateEmail(email);
setEmailIsInvalid(invalidCheck);
return invalidCheck ? true : false;
};

return (
<LinearGradient
start={{ x: 0.0, y: 0.0 }}
end={{ x: 1.0, y: 1.0 }}
colors={['#031A62', '#00A3FF']}
style={styles.gradientContainer}
>
{isFocused && <StatusBar animated translucent style="light" />}
<KeyboardAwareScrollView
style={styles.container}
contentContainerStyle={{
padding: 24,
flexGrow: 1,
justifyContent: 'center',
alignItems: 'stretch',
}}
>
<Image
resizeMode="contain"
style={{
width: 240,
height: 142,
alignSelf: 'center',
}}
source={logoImg}
/>
<Spacer size={80} />
<View style={styles.inputLabelRow}>
<Text style={styles.label}>Email</Text>
{emailIsInvalid && <Text style={styles.error}>invalid email</Text>}
</View>
<TextInput
style={[styles.input, emailIsInvalid && styles.invalid]}
onChangeText={(value) => setEmail(value)}
onEndEditing={isEmailInvalid}
/>

<View style={styles.inputLabelRow}>
<Text style={styles.label}>Password</Text>
{passwordIsInvalid && <Text style={styles.error}>invalid password</Text>}
</View>
<TextInput
style={[styles.input, passwordIsInvalid && styles.invalid]}
secureTextEntry={true}
onChangeText={(value) => setPassword(value)}
onEndEditing={isPasswordInvalid}
/>
<Spacer size={80} />
<BigButton style={{ marginBottom: 8 }} onPress={handleAuthentication} label="Log in" color="#FF8700" />
<Spinner
visible={isAuthenticating}
textContent={'Authenticating...'}
overlayColor="#031A62BF"
textStyle={styles.spinnerText}
/>
</KeyboardAwareScrollView>
</LinearGradient>
const authenticationContext = useContext(AuthenticationContext);
const [email, setEmail] = useState("");
const [password, setPassword] = useState("");
const [emailIsInvalid, setEmailIsInvalid] = useState<boolean>();
const [passwordIsInvalid, setPasswordIsInvalid] = useState<boolean>();
const [authError, setAuthError] = useState<string>();

const [accessTokenIsValid, setAccessTokenIsValid] = useState<boolean>(false);
const [isAuthenticating, setIsAuthenticating] = useState<boolean>(false);
const isFocused = useIsFocused();

useEffect(() => {
getFromCache("userInfo").then(
(cachedUserInfo) => authenticationContext?.setValue(cachedUserInfo as User),
(error: any) => console.log(error)
);
getFromCache("accessToken").then(
(accessToken) => accessToken && !isTokenExpired(accessToken as string) && setAccessTokenIsValid(true),
(error: any) => console.log(error)
);
if (authError)
Alert.alert("Authentication Error", authError, [{ text: "Ok", onPress: () => setAuthError(undefined) }]);
}, [authError]);

useEffect(() => {
if (accessTokenIsValid && authenticationContext?.value) navigation.navigate("EventsMap");
}, [accessTokenIsValid]);

const handleAuthentication = () => {
if (formIsValid()) {
setIsAuthenticating(true);
api
.authenticateUser(sanitizeEmail(email), password)
.then((response) => {
setInCache("userInfo", response.data.user);
setInCache("accessToken", response.data.accessToken);
authenticationContext?.setValue(response.data.user);
setIsAuthenticating(false);
123;
navigation.navigate("EventsMap");
})
.catch((error) => {
if (error.response) {
setAuthError(error.response.data);
} else {
setAuthError("Something went wrong.");
}
setIsAuthenticating(false);
});
}
};

const formIsValid = () => {
const emailIsValid = !isEmailInvalid();
const passwordIsValid = !isPasswordInvalid();
return emailIsValid && passwordIsValid;
};

const isPasswordInvalid = (): boolean => {
const invalidCheck = password.length < 6;
setPasswordIsInvalid(invalidCheck);
return invalidCheck ? true : false;
};

const isEmailInvalid = (): boolean => {
const invalidCheck = !validateEmail(email);
setEmailIsInvalid(invalidCheck);
return invalidCheck ? true : false;
};

return (
<LinearGradient
start={{ x: 0.0, y: 0.0 }}
end={{ x: 1.0, y: 1.0 }}
colors={["#031A62", "#00A3FF"]}
style={styles.gradientContainer}
>
{isFocused && <StatusBar animated translucent style="light" />}
<KeyboardAwareScrollView
style={styles.container}
contentContainerStyle={{
padding: 24,
flexGrow: 1,
justifyContent: "center",
alignItems: "stretch",
}}
>
<Image
resizeMode="contain"
style={{
width: 240,
height: 142,
alignSelf: "center",
}}
source={logoImg}
/>
<Spacer size={80} />
<View style={styles.inputLabelRow}>
<Text style={styles.label}>Email</Text>
{emailIsInvalid && <Text style={styles.error}>invalid email</Text>}
</View>
<TextInput
style={[styles.input, emailIsInvalid && styles.invalid]}
onChangeText={(value) => setEmail(value)}
onEndEditing={isEmailInvalid}
/>

<View style={styles.inputLabelRow}>
<Text style={styles.label}>Password</Text>
{passwordIsInvalid && <Text style={styles.error}>invalid password</Text>}
</View>
<TextInput
style={[styles.input, passwordIsInvalid && styles.invalid]}
secureTextEntry={true}
onChangeText={(value) => setPassword(value)}
onEndEditing={isPasswordInvalid}
/>
<Spacer size={80} />
<BigButton style={{ marginBottom: 8 }} onPress={handleAuthentication} label="Log in" color="#FF8700" />
<Spinner
visible={isAuthenticating}
textContent={"Authenticating..."}
overlayColor="#031A62BF"
textStyle={styles.spinnerText}
/>
</KeyboardAwareScrollView>
</LinearGradient>
);
}

const styles = StyleSheet.create({
gradientContainer: {
flex: 1,
},

container: {
flex: 1,
},

spinnerText: {
fontSize: 16,
fontFamily: 'Nunito_700Bold',
color: '#fff',
},

label: {
color: '#fff',
fontFamily: 'Nunito_600SemiBold',
fontSize: 15,
},

inputLabelRow: {
flexDirection: 'row',
justifyContent: 'space-between',
alignItems: 'baseline',
marginBottom: 4,
},

input: {
backgroundColor: '#fff',
borderWidth: 1.4,
borderColor: '#D3E2E5',
borderRadius: 8,
height: 56,
paddingTop: 16,
paddingBottom: 16,
paddingHorizontal: 24,
marginBottom: 16,
color: '#5C8599',
fontFamily: 'Nunito_600SemiBold',
fontSize: 15,
},

invalid: {
borderColor: 'red',
},

error: {
color: 'white',
fontFamily: 'Nunito_600SemiBold',
fontSize: 12,
},
gradientContainer: {
flex: 1,
},

container: {
flex: 1,
},

spinnerText: {
fontSize: 16,
fontFamily: "Nunito_700Bold",
color: "#fff",
},

label: {
color: "#fff",
fontFamily: "Nunito_600SemiBold",
fontSize: 15,
},

inputLabelRow: {
flexDirection: "row",
justifyContent: "space-between",
alignItems: "baseline",
marginBottom: 4,
},

input: {
backgroundColor: "#fff",
borderWidth: 1.4,
borderColor: "#D3E2E5",
borderRadius: 8,
height: 56,
paddingTop: 16,
paddingBottom: 16,
paddingHorizontal: 24,
marginBottom: 16,
color: "#5C8599",
fontFamily: "Nunito_600SemiBold",
fontSize: 15,
},

invalid: {
borderColor: "red",
},

error: {
color: "white",
fontFamily: "Nunito_600SemiBold",
fontSize: 12,
},
});