import React from 'react';
import {
  View,
  Text,
  StyleSheet,
  ScrollView,
  SafeAreaView,
  Platform,
  TouchableOpacity,
  StatusBar,
  Switch,
} from 'react-native';
import { useNavigation } from '@react-navigation/native';
import { useSettings, AppSettings } from '../hooks/useSettings';
import MaterialIcons from 'react-native-vector-icons/MaterialIcons';
import { useTheme } from '../contexts/ThemeContext';

const ANDROID_STATUSBAR_HEIGHT = StatusBar.currentHeight || 0;

interface SettingItemProps {
  title: string;
  description?: string;
  icon: string;
  isSelected: boolean;
  onPress: () => void;
  isLast?: boolean;
}

const SettingItem: React.FC<SettingItemProps> = ({
  title,
  description,
  icon,
  isSelected,
  onPress,
  isLast,
}) => {
  const { currentTheme } = useTheme();
  
  return (
    <TouchableOpacity
      onPress={onPress}
      activeOpacity={0.7}
      style={[
        styles.settingItem,
        !isLast && styles.settingItemBorder,
        { borderBottomColor: 'rgba(255,255,255,0.08)' },
      ]}
    >
      <View style={styles.settingContent}>
        <View style={[
          styles.settingIconContainer,
          { backgroundColor: 'rgba(255,255,255,0.1)' }
        ]}>
          <MaterialIcons
            name={icon}
            size={20}
            color={currentTheme.colors.primary}
          />
        </View>
        <View style={styles.settingText}>
          <Text
            style={[
              styles.settingTitle,
              { color: currentTheme.colors.text },
            ]}
          >
            {title}
          </Text>
          {description && (
            <Text
              style={[
                styles.settingDescription,
                { color: currentTheme.colors.textMuted },
              ]}
            >
              {description}
            </Text>
          )}
        </View>
        {isSelected && (
          <MaterialIcons
            name="check"
            size={24}
            color={currentTheme.colors.primary}
            style={styles.checkIcon}
          />
        )}
      </View>
    </TouchableOpacity>
  );
};

const PlayerSettingsScreen: React.FC = () => {
  const { settings, updateSetting } = useSettings();
  const { currentTheme } = useTheme();
  const navigation = useNavigation();

  const playerOptions = [
    {
      id: 'internal',
      title: 'Built-in Player',
      description: 'Use the app\'s default video player',
      icon: 'play-circle-outline',
    },
    ...(Platform.OS === 'ios' ? [
      {
        id: 'vlc',
        title: 'VLC',
        description: 'Open streams in VLC media player',
        icon: 'video-library',
      },
      {
        id: 'infuse',
        title: 'Infuse',
        description: 'Open streams in Infuse player',
        icon: 'smart-display',
      },
      {
        id: 'outplayer',
        title: 'OutPlayer',
        description: 'Open streams in OutPlayer',
        icon: 'slideshow',
      },
      {
        id: 'vidhub',
        title: 'VidHub',
        description: 'Open streams in VidHub player',
        icon: 'ondemand-video',
      },
    ] : [
      {
        id: 'external',
        title: 'External Player',
        description: 'Open streams in your preferred video player',
        icon: 'open-in-new',
      },
    ]),
  ];

  const handleBack = () => {
    navigation.goBack();
  };

  return (
    <SafeAreaView
      style={[
        styles.container,
        { backgroundColor: currentTheme.colors.darkBackground },
      ]}
    >
      <StatusBar
        translucent
        backgroundColor="transparent"
        barStyle="light-content"
      />

      <View style={styles.header}>
        <TouchableOpacity
          onPress={handleBack}
          style={styles.backButton}
          activeOpacity={0.7}
        >
          <MaterialIcons
            name="arrow-back"
            size={24}
            color={currentTheme.colors.text}
          />
          <Text style={[styles.backText, { color: currentTheme.colors.text }]}>
            Settings
          </Text>
        </TouchableOpacity>
        
        <View style={styles.headerActions}>
          {/* Empty for now, but ready for future actions */}
        </View>
      </View>
      
      <Text style={[styles.headerTitle, { color: currentTheme.colors.text }]}>
        Video Player
      </Text>

      <ScrollView 
        style={styles.scrollView}
        contentContainerStyle={styles.scrollContent}
      >
        <View style={styles.section}>
          <Text
            style={[
              styles.sectionTitle,
              { color: currentTheme.colors.textMuted },
            ]}
          >
            PLAYER SELECTION
          </Text>
          <View
            style={[
              styles.card,
              {
                backgroundColor: currentTheme.colors.elevation2,
              },
            ]}
          >
            {playerOptions.map((option, index) => (
              <SettingItem
                key={option.id}
                title={option.title}
                description={option.description}
                icon={option.icon}
                isSelected={
                  Platform.OS === 'ios'
                    ? settings.preferredPlayer === option.id
                    : settings.useExternalPlayer === (option.id === 'external')
                }
                onPress={() => {
                  if (Platform.OS === 'ios') {
                    updateSetting('preferredPlayer', option.id as AppSettings['preferredPlayer']);
                  } else {
                    updateSetting('useExternalPlayer', option.id === 'external');
                  }
                }}
                isLast={index === playerOptions.length - 1}
              />
            ))}
          </View>
        </View>
        
        <View style={styles.section}>
          <Text
            style={[
              styles.sectionTitle,
              { color: currentTheme.colors.textMuted },
            ]}
          >
            PLAYBACK OPTIONS
          </Text>
          <View
            style={[
              styles.card,
              {
                backgroundColor: currentTheme.colors.elevation2,
              },
            ]}
          >
            <View style={styles.settingItem}>
              <View style={styles.settingContent}>
                <View style={[
                  styles.settingIconContainer,
                  { backgroundColor: 'rgba(255,255,255,0.1)' }
                ]}>
                  <MaterialIcons
                    name="play-arrow"
                    size={20}
                    color={currentTheme.colors.primary}
                  />
                </View>
                <View style={styles.settingText}>
                  <Text
                    style={[
                      styles.settingTitle,
                      { color: currentTheme.colors.text },
                    ]}
                  >
                    Auto-play Best Stream
                  </Text>
                  <Text
                    style={[
                      styles.settingDescription,
                      { color: currentTheme.colors.textMuted },
                    ]}
                  >
                    Automatically start the highest quality stream available.
                  </Text>
                </View>
                <Switch
                  value={settings.autoplayBestStream}
                  onValueChange={(value) => updateSetting('autoplayBestStream', value)}
                  thumbColor={settings.autoplayBestStream ? currentTheme.colors.primary : undefined}
                />
              </View>
            </View>

            <View style={styles.settingItem}>
              <View style={styles.settingContent}>
                <View style={[
                  styles.settingIconContainer,
                  { backgroundColor: 'rgba(255,255,255,0.1)' }
                ]}>
                  <MaterialIcons
                    name="restore"
                    size={20}
                    color={currentTheme.colors.primary}
                  />
                </View>
                <View style={styles.settingText}>
                  <Text
                    style={[
                      styles.settingTitle,
                      { color: currentTheme.colors.text },
                    ]}
                  >
                    Always Resume
                  </Text>
                  <Text
                    style={[
                      styles.settingDescription,
                      { color: currentTheme.colors.textMuted },
                    ]}
                  >
                    Skip the resume prompt and automatically continue where you left off (if less than 85% watched).
                  </Text>
                </View>
                <Switch
                  value={settings.alwaysResume}
                  onValueChange={(value) => updateSetting('alwaysResume', value)}
                  thumbColor={settings.alwaysResume ? currentTheme.colors.primary : undefined}
                />
              </View>
            </View>
          </View>
        </View>
      </ScrollView>
    </SafeAreaView>
  );
};

const styles = StyleSheet.create({
  container: {
    flex: 1,
  },
  header: {
    flexDirection: 'row',
    alignItems: 'center',
    justifyContent: 'space-between',
    paddingHorizontal: 16,
    paddingTop: Platform.OS === 'android' ? ANDROID_STATUSBAR_HEIGHT + 8 : 8,
  },
  backButton: {
    flexDirection: 'row',
    alignItems: 'center',
    padding: 8,
  },
  backText: {
    fontSize: 17,
    marginLeft: 8,
  },
  headerActions: {
    flexDirection: 'row',
    alignItems: 'center',
  },
  headerButton: {
    padding: 8,
    marginLeft: 8,
  },
  headerTitle: {
    fontSize: 34,
    fontWeight: 'bold',
    paddingHorizontal: 16,
    marginBottom: 24,
  },
  scrollView: {
    flex: 1,
  },
  scrollContent: {
    paddingBottom: 24,
  },
  section: {
    paddingHorizontal: 16,
    paddingTop: 24,
  },
  sectionTitle: {
    fontSize: 13,
    fontWeight: '600',
    marginBottom: 8,
    paddingHorizontal: 4,
    letterSpacing: 0.5,
  },
  card: {
    borderRadius: 12,
    overflow: 'hidden',
    marginBottom: 24,
    shadowColor: 'rgba(0,0,0,0.1)',
    shadowOffset: { width: 0, height: 2 },
    shadowOpacity: 0.5,
    shadowRadius: 4,
    elevation: 3,
  },
  settingItem: {
    paddingVertical: 16,
    paddingHorizontal: 16,
  },
  settingItemBorder: {
    borderBottomWidth: 1,
  },
  settingContent: {
    flexDirection: 'row',
    alignItems: 'center',
  },
  settingIconContainer: {
    width: 36,
    height: 36,
    borderRadius: 10,
    alignItems: 'center',
    justifyContent: 'center',
    marginRight: 16,
  },
  settingText: {
    flex: 1,
  },
  settingTitle: {
    fontSize: 16,
    fontWeight: '500',
    marginBottom: 2,
  },
  settingDescription: {
    fontSize: 14,
    marginTop: 2,
  },
  checkIcon: {
    marginLeft: 16,
  },
});

export default PlayerSettingsScreen;