{% extends "base.html" %}

{% block title %}Anmeldung - Mercedes-Benz MYP Platform{% endblock %}

{% block content %}
<div class="min-h-screen bg-gradient-to-br from-gray-50 to-gray-100 dark:from-gray-900 dark:to-gray-800 flex items-center justify-center p-4 transition-all duration-500">
    <!-- Floating Background Elements -->
    <div class="absolute inset-0 overflow-hidden pointer-events-none">
        <!-- Animated Mercedes Stars -->
        <div class="absolute top-1/4 left-1/4 w-16 h-16 opacity-5 dark:opacity-10 animate-pulse">
            <svg class="w-full h-full text-gray-600 dark:text-gray-400" fill="currentColor" viewBox="0 0 80 80">
                <path d="M58.6,4.5C53,1.6,46.7,0,40,0c-6.7,0-13,1.6-18.6,4.5v0C8.7,11.2,0,24.6,0,40c0,15.4,8.7,28.8,21.5,35.5
                C27,78.3,33.3,80,40,80c6.7,0,12.9-1.7,18.5-4.6C71.3,68.8,80,55.4,80,40C80,24.6,71.3,11.2,58.6,4.5z M4,40
                c0-13.1,7-24.5,17.5-30.9v0C26.6,6,32.5,4.2,39,4l-4.5,32.7L21.5,46.8v0L8.3,57.1C5.6,52,4,46.2,4,40z M58.6,70.8
                C53.1,74.1,46.8,76,40,76c-6.8,0-13.2-1.9-18.6-5.2c-4.9-2.9-8.9-6.9-11.9-11.7l11.9-4.9v0L40,46.6l18.6,7.5v0l12,4.9
                C67.6,63.9,63.4,67.9,58.6,70.8z M58.6,46.8L58.6,46.8l-12.9-10L41.1,4c6.3,0.2,12.3,2,17.4,5.1v0C69,15.4,76,26.9,76,40
                c0,6.2-1.5,12-4.3,17.1L58.6,46.8z"/>
            </svg>
        </div>
        <div class="absolute top-3/4 right-1/4 w-12 h-12 opacity-5 dark:opacity-10 animate-pulse" style="animation-delay: 2s;">
            <svg class="w-full h-full text-gray-600 dark:text-gray-400" fill="currentColor" viewBox="0 0 80 80">
                <path d="M58.6,4.5C53,1.6,46.7,0,40,0c-6.7,0-13,1.6-18.6,4.5v0C8.7,11.2,0,24.6,0,40c0,15.4,8.7,28.8,21.5,35.5
                C27,78.3,33.3,80,40,80c6.7,0,12.9-1.7,18.5-4.6C71.3,68.8,80,55.4,80,40C80,24.6,71.3,11.2,58.6,4.5z M4,40
                c0-13.1,7-24.5,17.5-30.9v0C26.6,6,32.5,4.2,39,4l-4.5,32.7L21.5,46.8v0L8.3,57.1C5.6,52,4,46.2,4,40z M58.6,70.8
                C53.1,74.1,46.8,76,40,76c-6.8,0-13.2-1.9-18.6-5.2c-4.9-2.9-8.9-6.9-11.9-11.7l11.9-4.9v0L40,46.6l18.6,7.5v0l12,4.9
                C67.6,63.9,63.4,67.9,58.6,70.8z M58.6,46.8L58.6,46.8l-12.9-10L41.1,4c6.3,0.2,12.3,2,17.4,5.1v0C69,15.4,76,26.9,76,40
                c0,6.2-1.5,12-4.3,17.1L58.6,46.8z"/>
            </svg>
        </div>
        <div class="absolute top-1/2 right-1/3 w-8 h-8 opacity-5 dark:opacity-10 animate-pulse" style="animation-delay: 4s;">
            <svg class="w-full h-full text-gray-600 dark:text-gray-400" fill="currentColor" viewBox="0 0 80 80">
                <path d="M58.6,4.5C53,1.6,46.7,0,40,0c-6.7,0-13,1.6-18.6,4.5v0C8.7,11.2,0,24.6,0,40c0,15.4,8.7,28.8,21.5,35.5
                C27,78.3,33.3,80,40,80c6.7,0,12.9-1.7,18.5-4.6C71.3,68.8,80,55.4,80,40C80,24.6,71.3,11.2,58.6,4.5z M4,40
                c0-13.1,7-24.5,17.5-30.9v0C26.6,6,32.5,4.2,39,4l-4.5,32.7L21.5,46.8v0L8.3,57.1C5.6,52,4,46.2,4,40z M58.6,70.8
                C53.1,74.1,46.8,76,40,76c-6.8,0-13.2-1.9-18.6-5.2c-4.9-2.9-8.9-6.9-11.9-11.7l11.9-4.9v0L40,46.6l18.6,7.5v0l12,4.9
                C67.6,63.9,63.4,67.9,58.6,70.8z M58.6,46.8L58.6,46.8l-12.9-10L41.1,4c6.3,0.2,12.3,2,17.4,5.1v0C69,15.4,76,26.9,76,40
                c0,6.2-1.5,12-4.3,17.1L58.6,46.8z"/>
            </svg>
        </div>
        
        <!-- Decorative Lines -->
        <div class="absolute inset-0 opacity-5 dark:opacity-10">
            <div class="absolute top-1/3 left-0 right-0 h-px bg-gradient-to-r from-transparent via-gray-600 dark:via-gray-400 to-transparent"></div>
            <div class="absolute top-2/3 left-0 right-0 h-px bg-gradient-to-r from-transparent via-gray-600 dark:via-gray-400 to-transparent"></div>
        </div>
    </div>

    <!-- Login Card -->
    <div class="w-full max-w-md relative z-10">
        <div class="bg-white dark:bg-gray-800 backdrop-blur-xl bg-opacity-95 dark:bg-opacity-95 rounded-2xl shadow-2xl border border-gray-200 dark:border-gray-700 p-8 transition-all duration-300 transform hover:shadow-3xl">
            <!-- Mercedes-Benz Header -->
            <div class="text-center mb-8">
                <div class="flex justify-center mb-6">
                    <div class="w-20 h-20 transition-transform duration-500 hover:scale-110 hover:rotate-12">
                        <svg class="w-full h-full text-gray-900 dark:text-white transition-colors duration-300" fill="currentColor" viewBox="0 0 80 80">
                            <path d="M58.6,4.5C53,1.6,46.7,0,40,0c-6.7,0-13,1.6-18.6,4.5v0C8.7,11.2,0,24.6,0,40c0,15.4,8.7,28.8,21.5,35.5
                            C27,78.3,33.3,80,40,80c6.7,0,12.9-1.7,18.5-4.6C71.3,68.8,80,55.4,80,40C80,24.6,71.3,11.2,58.6,4.5z M4,40
                            c0-13.1,7-24.5,17.5-30.9v0C26.6,6,32.5,4.2,39,4l-4.5,32.7L21.5,46.8v0L8.3,57.1C5.6,52,4,46.2,4,40z M58.6,70.8
                            C53.1,74.1,46.8,76,40,76c-6.8,0-13.2-1.9-18.6-5.2c-4.9-2.9-8.9-6.9-11.9-11.7l11.9-4.9v0L40,46.6l18.6,7.5v0l12,4.9
                            C67.6,63.9,63.4,67.9,58.6,70.8z M58.6,46.8L58.6,46.8l-12.9-10L41.1,4c6.3,0.2,12.3,2,17.4,5.1v0C69,15.4,76,26.9,76,40
                            c0,6.2-1.5,12-4.3,17.1L58.6,46.8z"/>
                        </svg>
                    </div>
                </div>
                <h1 class="text-3xl font-bold text-gray-900 dark:text-white mb-1 tracking-tight transition-colors duration-300">Mercedes-Benz</h1>
                <div class="w-16 h-0.5 bg-gray-300 dark:bg-gray-600 mx-auto my-3"></div>
                <h2 class="text-xl font-medium text-gray-700 dark:text-gray-300 mb-1 transition-colors duration-300">MYP Platform</h2>
                <p class="text-gray-600 dark:text-gray-400 text-sm transition-colors duration-300">3D-Druck Management System</p>
            </div>

            <!-- Flash Messages -->
            {% with messages = get_flashed_messages(with_categories=true) %}
              {% if messages %}
                {% for category, message in messages %}
                  <div class="mb-6 p-4 {% if category == 'error' %}bg-red-50 dark:bg-red-900/20 border border-red-200 dark:border-red-800{% else %}bg-blue-50 dark:bg-blue-900/20 border border-blue-200 dark:border-blue-800{% endif %} rounded-lg transition-all duration-300">
                    <div class="flex">
                      <div class="flex-shrink-0">
                        {% if category == 'error' %}
                          <svg class="h-5 w-5 text-red-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-2.5L13.732 4c-.77-.833-1.964-.833-2.732 0L3.732 16.5c-.77.833.192 2.5 1.732 2.5z"/>
                          </svg>
                        {% else %}
                          <svg class="h-5 w-5 text-blue-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M13 16h-1v-4h-1m1-4h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/>
                          </svg>
                        {% endif %}
                      </div>
                      <div class="ml-3">
                        <h3 class="text-sm font-medium {% if category == 'error' %}text-red-800 dark:text-red-200{% else %}text-blue-800 dark:text-blue-200{% endif %}">{{ category|capitalize }}</h3>
                        <div class="mt-1 text-sm {% if category == 'error' %}text-red-700 dark:text-red-300{% else %}text-blue-700 dark:text-blue-300{% endif %}">
                          {{ message }}
                        </div>
                      </div>
                    </div>
                  </div>
                {% endfor %}
              {% endif %}
            {% endwith %}

            <!-- Login Form -->
            <form id="login-form" action="/auth/login" method="POST" class="space-y-6">
                <!-- CSRF-Token hinzufügen -->
                <input type="hidden" name="csrf_token" value="{{ csrf_token() }}">
                
                <div class="space-y-4">
                    <div>
                        <label for="username" class="block text-sm font-semibold text-gray-700 dark:text-gray-300 mb-2 transition-colors duration-300">
                            Benutzername
                        </label>
                        <div class="relative group">
                            <div class="absolute inset-y-0 left-0 pl-3 flex items-center pointer-events-none">
                                <svg class="h-5 w-5 text-gray-400 dark:text-gray-500 group-focus-within:text-blue-500 dark:group-focus-within:text-blue-400 transition-colors duration-300" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M16 12a4 4 0 10-8 0 4 4 0 008 0zm0 0v1.5a2.5 2.5 0 005 0V12a9 9 0 10-9 9m4.5-1.206a8.959 8.959 0 01-4.5 1.207"/>
                                </svg>
                            </div>
                            <input 
                                type="text" 
                                id="username" 
                                name="username" 
                                required 
                                class="block w-full pl-10 pr-3 py-3 border-2 border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-700 text-gray-900 dark:text-white placeholder-gray-500 dark:placeholder-gray-400 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent transition-all duration-300"
                                placeholder="Benutzername oder E-Mail"
                                autocomplete="username"
                            >
                        </div>
                    </div>

                    <div>
                        <label for="password" class="block text-sm font-semibold text-gray-700 dark:text-gray-300 mb-2 transition-colors duration-300">
                            Passwort
                        </label>
                        <div class="relative group">
                            <div class="absolute inset-y-0 left-0 pl-3 flex items-center pointer-events-none">
                                <svg class="h-5 w-5 text-gray-400 dark:text-gray-500 group-focus-within:text-blue-500 dark:group-focus-within:text-blue-400 transition-colors duration-300" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                                    <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 15v2m-6 4h12a2 2 0 002-2v-6a2 2 0 00-2-2H6a2 2 0 00-2 2v6a2 2 0 002 2zm10-10V7a4 4 0 00-8 0v4h8z"/>
                                </svg>
                            </div>
                            <input 
                                type="password" 
                                id="password" 
                                name="password" 
                                required 
                                class="block w-full pl-10 pr-3 py-3 border-2 border-gray-300 dark:border-gray-600 rounded-lg bg-white dark:bg-gray-700 text-gray-900 dark:text-white placeholder-gray-500 dark:placeholder-gray-400 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:border-transparent transition-all duration-300"
                                placeholder="••••••••"
                                autocomplete="current-password"
                            >
                        </div>
                    </div>
                </div>

                <div class="flex items-center justify-between">
                    <div class="flex items-center">
                        <input 
                            id="remember-me" 
                            name="remember-me" 
                            type="checkbox" 
                            class="h-4 w-4 text-blue-600 focus:ring-blue-500 border-gray-300 dark:border-gray-600 rounded transition-colors duration-300"
                        >
                        <label for="remember-me" class="ml-2 block text-sm text-gray-700 dark:text-gray-300 transition-colors duration-300">
                            Angemeldet bleiben
                        </label>
                    </div>
                    <div class="text-sm">
                        <a href="#" class="font-medium text-blue-600 dark:text-blue-400 hover:text-blue-800 dark:hover:text-blue-300 transition-colors duration-300">
                            Passwort vergessen?
                        </a>
                    </div>
                </div>

                <button 
                    type="submit" 
                    class="w-full flex justify-center items-center py-3 px-4 bg-blue-600 hover:bg-blue-700 dark:bg-blue-500 dark:hover:bg-blue-600 border border-transparent rounded-lg shadow-md text-sm font-semibold text-white hover:shadow-lg focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-blue-500 disabled:opacity-50 disabled:cursor-not-allowed transition-all duration-300 transform hover:-translate-y-0.5"
                    id="login-button"
                >
                    <span id="login-text">Anmelden</span>
                    <svg id="login-spinner" class="hidden animate-spin ml-3 h-5 w-5" fill="none" viewBox="0 0 24 24">
                        <circle class="opacity-25" cx="12" cy="12" r="10" stroke="currentColor" stroke-width="4"></circle>
                        <path class="opacity-75" fill="currentColor" d="M4 12a8 8 0 018-8V0C5.373 0 0 5.373 0 12h4zm2 5.291A7.962 7.962 0 014 12H0c0 3.042 1.135 5.824 3 7.938l3-2.647z"></path>
                    </svg>
                </button>
            </form>

            <!-- Error Display -->
            <div id="error-message" class="hidden mt-4 p-4 bg-red-50 dark:bg-red-900/20 border border-red-200 dark:border-red-800 rounded-lg transition-all duration-300">
                <div class="flex">
                    <div class="flex-shrink-0">
                        <svg class="h-5 w-5 text-red-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-2.5L13.732 4c-.77-.833-1.964-.833-2.732 0L3.732 16.5c-.77.833.192 2.5 1.732 2.5z"/>
                        </svg>
                    </div>
                    <div class="ml-3">
                        <h3 class="text-sm font-medium text-red-800 dark:text-red-200">Anmeldung fehlgeschlagen</h3>
                        <div class="mt-2 text-sm text-red-700 dark:text-red-300" id="error-text"></div>
                    </div>
                </div>
            </div>

            <!-- Offline Notice -->
            <div id="offline-notice" class="hidden mt-4 p-4 bg-yellow-50 dark:bg-yellow-900/20 border border-yellow-200 dark:border-yellow-800 rounded-lg transition-all duration-300">
                <div class="flex">
                    <div class="flex-shrink-0">
                        <svg class="h-5 w-5 text-yellow-400" fill="none" stroke="currentColor" viewBox="0 0 24 24">
                            <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-2.5L13.732 4c-.77-.833-1.964-.833-2.732 0L3.732 16.5c-.77.833.192 2.5 1.732 2.5z"/>
                        </svg>
                    </div>
                    <div class="ml-3">
                        <h3 class="text-sm font-medium text-yellow-800 dark:text-yellow-200">Offline-Modus</h3>
                        <div class="mt-2 text-sm text-yellow-700 dark:text-yellow-300">
                            Sie sind derzeit offline. Die Anwendung läuft im eingeschränkten Modus.
                        </div>
                    </div>
                </div>
            </div>

            <!-- Footer -->
            <div class="mt-8 pt-6 border-t border-gray-200 dark:border-gray-700 transition-colors duration-300">
                <div class="text-center">
                    <p class="text-xs text-gray-500 dark:text-gray-400 transition-colors duration-300">
                        © 2024 Mercedes-Benz Group AG
                    </p>
                    <p class="text-xs text-gray-400 dark:text-gray-500 mt-1 transition-colors duration-300">
                        Das Beste oder nichts
                    </p>
                </div>
            </div>
        </div>
    </div>

    <!-- Connection Status Indicator -->
    <div id="connection-status-login" class="fixed bottom-6 right-6 z-50 bg-white dark:bg-gray-800 backdrop-blur-lg bg-opacity-90 dark:bg-opacity-90 border border-gray-200 dark:border-gray-700 rounded-full px-4 py-2 shadow-lg transition-all duration-300">
        <div class="flex items-center space-x-2">
            <div class="w-2 h-2 bg-green-500 rounded-full animate-pulse"></div>
            <span class="text-xs font-medium text-gray-700 dark:text-gray-300 transition-colors duration-300">Online</span>
        </div>
    </div>
</div>
{% endblock %}

{% block extra_js %}
<script>
document.addEventListener('DOMContentLoaded', function() {
    const loginForm = document.getElementById('login-form');
    const loginButton = document.getElementById('login-button');
    const loginText = document.getElementById('login-text');
    const loginSpinner = document.getElementById('login-spinner');
    const errorMessage = document.getElementById('error-message');
    const errorText = document.getElementById('error-text');
    const offlineNotice = document.getElementById('offline-notice');

    // Handle form submission
    loginForm.addEventListener('submit', async function(e) {
        e.preventDefault();
        
        // Show loading state
        setLoadingState(true);
        hideError();
        
        // Offline-Hinweis anzeigen, aber Anmeldung trotzdem erlauben
        if (!navigator.onLine) {
            showOfflineNotice();
        } else {
            hideOfflineNotice();
        }

        const formData = new FormData(loginForm);
        const username = formData.get('username');
        const password = formData.get('password');
        const rememberMe = formData.get('remember-me') === 'on';

        try {
            const response = await fetch('/auth/login', {
                method: 'POST',
                headers: {
                    'Content-Type': 'application/json',
                    'Accept': 'application/json',
                    'X-CSRFToken': '{{ csrf_token() }}'
                },
                body: JSON.stringify({
                    username: username,
                    password: password,
                    remember_me: rememberMe
                })
            });

            // Prüfen, ob die Antwort JSON ist
            const contentType = response.headers.get('content-type');
            if (contentType && contentType.includes('application/json')) {
                const data = await response.json();
                
                if (response.ok) {
                    // Erfolg - zur Zielseite weiterleiten
                    loginText.textContent = 'Erfolgreich angemeldet...';
                    setTimeout(() => {
                        window.location.href = data.redirect_url || '/dashboard';
                    }, 1000);
                } else {
                    // Fehler - Fehlermeldung anzeigen
                    showError(data.error || 'Anmeldung fehlgeschlagen. Bitte überprüfen Sie Ihre Eingaben.');
                    setLoadingState(false);
                }
            } else if (response.redirected) {
                // Erfolg mit Umleitung - Umleitung folgen
                window.location.href = response.url;
            } else {
                // Unerwartete Antwort
                console.error('Unerwartete Serverantwort:', await response.text());
                showError('Unerwartete Serverantwort. Bitte versuchen Sie es später erneut.');
                setLoadingState(false);
            }
        } catch (error) {
            console.error('Login error:', error);
            // Im Falle eines Netzwerkfehlers (wahrscheinlich offline)
            showError('Verbindungsfehler. Stellen Sie sicher, dass der Server läuft und erreichbar ist.');
            setLoadingState(false);
        }
    });

    function setLoadingState(loading) {
        loginButton.disabled = loading;
        if (loading) {
            loginText.textContent = 'Anmeldung läuft...';
            loginSpinner.classList.remove('hidden');
        } else {
            loginText.textContent = 'Anmelden';
            loginSpinner.classList.add('hidden');
        }
    }

    function showError(message) {
        errorText.textContent = message;
        errorMessage.classList.remove('hidden');
        errorMessage.classList.add('animate-pulse');
        setTimeout(() => {
            errorMessage.classList.remove('animate-pulse');
        }, 1000);
    }

    function hideError() {
        errorMessage.classList.add('hidden');
    }

    function showOfflineNotice() {
        offlineNotice.classList.remove('hidden');
        offlineNotice.classList.add('animate-pulse');
        setTimeout(() => {
            offlineNotice.classList.remove('animate-pulse');
        }, 1000);
    }

    function hideOfflineNotice() {
        offlineNotice.classList.add('hidden');
    }

    // Connection status monitoring
    function updateConnectionStatus() {
        const statusEl = document.getElementById('connection-status-login');
        if (navigator.onLine) {
            statusEl.innerHTML = `
                <div class="flex items-center space-x-2">
                    <div class="w-2 h-2 bg-green-500 rounded-full animate-pulse"></div>
                    <span class="text-xs font-medium text-gray-700 dark:text-gray-300 transition-colors duration-300">Online</span>
                </div>
            `;
            statusEl.className = 'fixed bottom-6 right-6 z-50 bg-white dark:bg-gray-800 backdrop-blur-lg bg-opacity-90 dark:bg-opacity-90 border border-gray-200 dark:border-gray-700 rounded-full px-4 py-2 shadow-lg transition-all duration-300';
            hideOfflineNotice();
        } else {
            statusEl.innerHTML = `
                <div class="flex items-center space-x-2">
                    <div class="w-2 h-2 bg-yellow-500 rounded-full animate-pulse"></div>
                    <span class="text-xs font-medium text-gray-700 dark:text-gray-300 transition-colors duration-300">Offline-Modus</span>
                </div>
            `;
            statusEl.className = 'fixed bottom-6 right-6 z-50 bg-yellow-50 dark:bg-yellow-900 backdrop-blur-lg bg-opacity-90 dark:bg-opacity-90 border border-yellow-200 dark:border-yellow-700 rounded-full px-4 py-2 shadow-lg transition-all duration-300';
            showOfflineNotice();
        }
    }

    // Listen for connection changes
    window.addEventListener('online', updateConnectionStatus);
    window.addEventListener('offline', updateConnectionStatus);
    
    // Initial status
    updateConnectionStatus();

    // Auto-focus email field
    document.getElementById('username').focus();

    // Enhanced form validation with visual feedback
    const inputs = document.querySelectorAll('input[type="text"], input[type="password"]');
    inputs.forEach(input => {
        input.addEventListener('blur', function() {
            if (this.value && this.checkValidity()) {
                this.classList.remove('border-red-300', 'dark:border-red-600');
                this.classList.add('border-green-300', 'dark:border-green-600');
            } else if (this.value && !this.checkValidity()) {
                this.classList.remove('border-green-300', 'dark:border-green-600');
                this.classList.add('border-red-300', 'dark:border-red-600');
            }
        });

        input.addEventListener('focus', function() {
            this.classList.remove('border-red-300', 'dark:border-red-600', 'border-green-300', 'dark:border-green-600');
        });
    });

    // Add subtle entrance animation
    setTimeout(() => {
        document.querySelector('.w-full.max-w-md').classList.add('animate-fade-in');
    }, 100);
});
</script>
{% endblock %}