import { Ionicons } from '@expo/vector-icons';
import React, { useEffect, useRef } from 'react';
import {
  Alert,
  Animated,
  ScrollView,
  StyleSheet,
  Switch,
  Text,
  TouchableOpacity,
  View,
} from 'react-native';
import { SafeAreaView } from 'react-native-safe-area-context';
import { Colors } from '../constants/colors';

interface ProfileScreenProps {
  user: any;
  navigation: any;
  onLogout: () => void;
}

const ProfileScreen: React.FC<ProfileScreenProps> = ({ user, navigation, onLogout }) => {
  const fadeAnim = useRef(new Animated.Value(0)).current;

  useEffect(() => {
    Animated.timing(fadeAnim, {
      toValue: 1,
      duration: 800,
      useNativeDriver: true,
    }).start();
  }, []);

  const handleLogout = () => {
    Alert.alert(
      'Abmelden',
      'Möchtest du dich wirklich abmelden?',
      [
        { text: 'Abbrechen', style: 'cancel' },
        { text: 'Abmelden', style: 'destructive', onPress: onLogout }
      ]
    );
  };

  return (
    <SafeAreaView style={styles.container}>
      <View style={styles.header}>
        <TouchableOpacity style={styles.backButton} onPress={() => navigation.goBack()}>
          <Ionicons name="chevron-back" size={24} color={Colors.text} />
        </TouchableOpacity>
        <Text style={styles.headerTitle}>Profil</Text>
        <View style={styles.placeholder} />
      </View>

      <Animated.View style={[styles.content, { opacity: fadeAnim }]}>
        {/* Profile Card */}
        <View style={styles.profileCard}>
          <View style={styles.avatarContainer}>
            <Text style={styles.avatarText}>
              {user?.firstName?.[0] || user?.username?.[0] || 'U'}
            </Text>
          </View>
          <Text style={styles.userName}>
            {user?.firstName} {user?.lastName}
          </Text>
          <Text style={styles.userEmail}>{user?.email}</Text>
          <Text style={styles.userRole}>IT-Lehrling</Text>
        </View>

        {/* Stats */}
        <View style={styles.statsContainer}>
          <View style={styles.statItem}>
            <Text style={styles.statNumber}>0</Text>
            <Text style={styles.statLabel}>Fragen</Text>
          </View>
          <View style={styles.statItem}>
            <Text style={styles.statNumber}>0%</Text>
            <Text style={styles.statLabel}>Erfolg</Text>
          </View>
          <View style={styles.statItem}>
            <Text style={styles.statNumber}>0</Text>
            <Text style={styles.statLabel}>Tage</Text>
          </View>
        </View>

        {/* Settings */}
        <View style={styles.settingsContainer}>
          <Text style={styles.sectionTitle}>Einstellungen</Text>
          
          <View style={styles.settingItem}>
            <View style={styles.settingLeft}>
              <Ionicons name="notifications-outline" size={20} color={Colors.text} />
              <Text style={styles.settingText}>Benachrichtigungen</Text>
            </View>
            <Switch
              value={true}
              onValueChange={() => {}}
              trackColor={{ false: Colors.border, true: Colors.primary + '30' }}
              thumbColor={Colors.primary}
            />
          </View>

          <View style={styles.settingItem}>
            <View style={styles.settingLeft}>
              <Ionicons name="volume-high-outline" size={20} color={Colors.text} />
              <Text style={styles.settingText}>Töne</Text>
            </View>
            <Switch
              value={true}
              onValueChange={() => {}}
              trackColor={{ false: Colors.border, true: Colors.primary + '30' }}
              thumbColor={Colors.primary}
            />
          </View>

          <View style={styles.settingItem}>
            <View style={styles.settingLeft}>
              <Ionicons name="sparkles-outline" size={20} color={Colors.text} />
              <Text style={styles.settingText}>Animationen</Text>
            </View>
            <Switch
              value={true}
              onValueChange={() => {}}
              trackColor={{ false: Colors.border, true: Colors.primary + '30' }}
              thumbColor={Colors.primary}
            />
          </View>
        </View>

        {/* Actions */}
        <View style={styles.actionsContainer}>
          <TouchableOpacity style={styles.actionButton}>
            <Ionicons name="help-circle-outline" size={20} color={Colors.text} />
            <Text style={styles.actionText}>Hilfe & Support</Text>
          </TouchableOpacity>

          <TouchableOpacity style={styles.actionButton}>
            <Ionicons name="document-text-outline" size={20} color={Colors.text} />
            <Text style={styles.actionText}>Datenschutz</Text>
          </TouchableOpacity>

          <TouchableOpacity style={styles.actionButton}>
            <Ionicons name="information-circle-outline" size={20} color={Colors.text} />
            <Text style={styles.actionText}>Über GoLap</Text>
          </TouchableOpacity>
        </View>

        {/* Logout Button */}
        <TouchableOpacity style={styles.logoutButton} onPress={handleLogout}>
          <Ionicons name="log-out-outline" size={20} color={Colors.error} />
          <Text style={styles.logoutText}>Abmelden</Text>
        </TouchableOpacity>
      </Animated.View>
    </SafeAreaView>
  );
};

const styles = StyleSheet.create({
  container: {
    flex: 1,
    backgroundColor: Colors.background,
  },
  header: {
    flexDirection: 'row',
    alignItems: 'center',
    justifyContent: 'space-between',
    paddingHorizontal: 20,
    paddingVertical: 16,
    backgroundColor: Colors.card,
    borderBottomWidth: 1,
    borderBottomColor: Colors.border,
  },
  backButton: {
    padding: 8,
  },
  placeholder: {
    width: 40,
  },
  headerTitle: {
    fontSize: 18,
    fontWeight: 'bold',
    color: Colors.text,
  },
  content: {
    flex: 1,
    padding: 20,
  },
  profileCard: {
    backgroundColor: Colors.card,
    borderRadius: 16,
    padding: 24,
    alignItems: 'center',
    marginBottom: 24,
    borderWidth: 1,
    borderColor: Colors.border,
  },
  avatarContainer: {
    width: 80,
    height: 80,
    borderRadius: 40,
    backgroundColor: Colors.primary,
    justifyContent: 'center',
    alignItems: 'center',
    marginBottom: 16,
  },
  avatarText: {
    fontSize: 32,
    fontWeight: 'bold',
    color: Colors.white,
  },
  userName: {
    fontSize: 20,
    fontWeight: 'bold',
    color: Colors.text,
    marginBottom: 4,
  },
  userEmail: {
    fontSize: 14,
    color: Colors.textSecondary,
    marginBottom: 8,
  },
  userRole: {
    fontSize: 12,
    color: Colors.primary,
    backgroundColor: Colors.primary + '20',
    paddingHorizontal: 12,
    paddingVertical: 4,
    borderRadius: 8,
  },
  statsContainer: {
    flexDirection: 'row',
    backgroundColor: Colors.card,
    borderRadius: 12,
    padding: 16,
    marginBottom: 24,
    borderWidth: 1,
    borderColor: Colors.border,
  },
  statItem: {
    flex: 1,
    alignItems: 'center',
  },
  statNumber: {
    fontSize: 24,
    fontWeight: 'bold',
    color: Colors.primary,
    marginBottom: 4,
  },
  statLabel: {
    fontSize: 12,
    color: Colors.textSecondary,
  },
  settingsContainer: {
    backgroundColor: Colors.card,
    borderRadius: 12,
    padding: 16,
    marginBottom: 24,
    borderWidth: 1,
    borderColor: Colors.border,
  },
  sectionTitle: {
    fontSize: 16,
    fontWeight: 'bold',
    color: Colors.text,
    marginBottom: 16,
  },
  settingItem: {
    flexDirection: 'row',
    alignItems: 'center',
    justifyContent: 'space-between',
    paddingVertical: 12,
    borderBottomWidth: 1,
    borderBottomColor: Colors.border,
  },
  settingLeft: {
    flexDirection: 'row',
    alignItems: 'center',
  },
  settingText: {
    fontSize: 14,
    color: Colors.text,
    marginLeft: 12,
  },
  actionsContainer: {
    backgroundColor: Colors.card,
    borderRadius: 12,
    padding: 16,
    marginBottom: 24,
    borderWidth: 1,
    borderColor: Colors.border,
  },
  actionButton: {
    flexDirection: 'row',
    alignItems: 'center',
    paddingVertical: 12,
    borderBottomWidth: 1,
    borderBottomColor: Colors.border,
  },
  actionText: {
    fontSize: 14,
    color: Colors.text,
    marginLeft: 12,
  },
  logoutButton: {
    flexDirection: 'row',
    alignItems: 'center',
    justifyContent: 'center',
    backgroundColor: Colors.error + '20',
    borderRadius: 12,
    padding: 16,
    borderWidth: 1,
    borderColor: Colors.error,
  },
  logoutText: {
    fontSize: 16,
    fontWeight: 'bold',
    color: Colors.error,
    marginLeft: 8,
  },
});

export default ProfileScreen;