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path: root/fe/src/lib/LoginForm.svelte
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<script lang='ts'>
import { token, user, preferences } from '../stores/auth';
import Card from './Card.svelte';

let credentials: CredentialObject = {
    username: '',
    password: ''
}

let error;

interface CredentialObject {
    username: string;
    password: string;
}

function prepareCredentials ({ username, password }: CredentialObject): string {
    return btoa(`${username}:${password}`);
}

async function onSubmit (e) {
    if (!credentials.username || !credentials.password) {
        error = 'please enter your username and password';
        return;
    }
   const auth = prepareCredentials(credentials);

   const response = await fetch('http://localhost:8080/api/v1/auth', {
        method: 'POST',
        headers: {
            'Authorization': `Basic ${auth}`,
        },
   });

    if (response.status === 401) {
        error = "Your username or password is wrong";
        return;
    }

    if (response.ok) {
        const { token: apiToken, user: userData, preferences: userPreferences } = await response.json();
        user.setUser(userData);
        preferences.set(userPreferences);
        token.authenticate(apiToken);
    }

    error = null;
}
</script>

<Card>
    <form class="form" on:submit|preventDefault={onSubmit}>
        <div class='form input group'>
            <label for="username">Username</label>
            <input bind:value={credentials.username} id="username" name='username' type="text" autocomplete="username" />
        </div>
        <div class='form input group'>
            <label for="password">Password</label>
            <input bind:value={credentials.password} id="password" name='password' type="password" autocomplete="current-password"/>
        </div>
        {#if error}
            <p class="error">{error}</p>
        {/if}
        <button type="submit">Log in</button>
    </form>
</Card>