import { View, StyleSheet, Animated, TouchableOpacity } from 'react-native';
import { ThemedView } from '@/components/themed-view';
import { ThemedText } from '@/components/themed-text';
import { LinearGradient } from 'expo-linear-gradient';
import { RunProgress, GenerationStatus } from '@/lib/types/template-run';
import { useEffect, useRef } from 'react';

interface RunProgressViewProps {
  progress: RunProgress;
  onCancel?: () => void;
}

export function RunProgressView({ progress, onCancel }: RunProgressViewProps) {
  const animatedWidth = useRef(new Animated.Value(0)).current;
  const pulseAnimation = useRef(new Animated.Value(1)).current;

  // 进度条动画
  useEffect(() => {
    Animated.timing(animatedWidth, {
      toValue: progress.progress,
      duration: 500,
      useNativeDriver: false,
    }).start();
  }, [progress.progress, animatedWidth]);

  // 脉冲动画
  useEffect(() => {
    if (progress.status === 'running') {
      const pulseLoop = Animated.loop(
        Animated.sequence([
          Animated.timing(pulseAnimation, {
            toValue: 1.1,
            duration: 1000,
            useNativeDriver: true,
          }),
          Animated.timing(pulseAnimation, {
            toValue: 1,
            duration: 1000,
            useNativeDriver: true,
          }),
        ])
      );
      pulseLoop.start();
      return () => pulseLoop.stop();
    } else {
      pulseAnimation.setValue(1);
    }
  }, [progress.status, pulseAnimation]);

  const getStatusColor = () => {
    switch (progress.status) {
      case 'pending':
        return ['#FFA500', '#FF8C00']; // 橙色
      case 'running':
        return ['#4ECDC4', '#44A3A0']; // 青色
      case 'completed':
        return ['#52B788', '#40916C']; // 绿色
      case 'failed':
        return ['#FF6B6B', '#FF5252']; // 红色
      default:
        return ['#999999', '#666666'];
    }
  };

  const getStatusText = () => {
    switch (progress.status) {
      case 'pending':
        return '准备中...';
      case 'running':
        return '执行中...';
      case 'completed':
        return '已完成';
      case 'failed':
        return '执行失败';
      default:
        return '未知状态';
    }
  };

  const getStatusIcon = () => {
    switch (progress.status) {
      case 'pending':
        return '⏳';
      case 'running':
        return '🔄';
      case 'completed':
        return '✅';
      case 'failed':
        return '❌';
      default:
        return '❓';
    }
  };

  const colors = getStatusColor();

  return (
    <ThemedView style={styles.container}>
      {/* 状态头部 */}
      <View style={styles.header}>
        <Animated.View
          style={[
            styles.statusIcon,
            {
              transform: [{ scale: pulseAnimation }],
            },
          ]}
        >
          <ThemedText style={styles.iconText}>
            {getStatusIcon()}
          </ThemedText>
        </Animated.View>

        <View style={styles.statusInfo}>
          <ThemedText style={styles.statusText}>
            {getStatusText()}
          </ThemedText>
          <ThemedText style={styles.messageText}>
            {progress.message}
          </ThemedText>
        </View>
      </View>

      {/* 进度条 */}
      <View style={styles.progressContainer}>
        <View style={styles.progressBackground}>
          <Animated.View
            style={[
              styles.progressFill,
              {
                width: animatedWidth.interpolate({
                  inputRange: [0, 100],
                  outputRange: ['0%', '100%'],
                  extrapolate: 'clamp',
                }),
              },
            ]}
          >
            <LinearGradient
              colors={colors}
              start={{ x: 0, y: 0 }}
              end={{ x: 1, y: 0 }}
              style={styles.progressGradient}
            />
          </Animated.View>
        </View>

        <ThemedText style={styles.progressText}>
          {Math.round(progress.progress)}%
        </ThemedText>
      </View>

      {/* 详细信息 */}
      <View style={styles.details}>
        <ThemedText style={styles.detailText}>
          状态: <ThemedText style={styles.detailValue}>{getStatusText()}</ThemedText>
        </ThemedText>

        {progress.result?.creditsCost && (
          <ThemedText style={styles.detailText}>
            消耗积分: <ThemedText style={styles.detailValue}>{progress.result.creditsCost}</ThemedText>
          </ThemedText>
        )}

        {progress.result?.type && (
          <ThemedText style={styles.detailText}>
            输出类型: <ThemedText style={styles.detailValue}>
              {progress.result.type === 'IMAGE' ? '图片' :
               progress.result.type === 'VIDEO' ? '视频' :
               progress.result.type === 'TEXT' ? '文本' : '未知'}
            </ThemedText>
          </ThemedText>
        )}
      </View>

      {/* 操作按钮 */}
      {onCancel && (progress.status === 'pending' || progress.status === 'running') && (
        <View style={styles.actions}>
          <TouchableOpacity style={styles.cancelButton} onPress={onCancel}>
            <ThemedText style={styles.cancelButtonText}>取消任务</ThemedText>
          </TouchableOpacity>
        </View>
      )}
    </ThemedView>
  );
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    padding: 20,
  },
  header: {
    flexDirection: 'row',
    alignItems: 'center',
    marginBottom: 24,
  },
  statusIcon: {
    width: 48,
    height: 48,
    borderRadius: 24,
    backgroundColor: 'rgba(78, 205, 196, 0.1)',
    justifyContent: 'center',
    alignItems: 'center',
    marginRight: 16,
  },
  iconText: {
    fontSize: 24,
  },
  statusInfo: {
    flex: 1,
  },
  statusText: {
    fontSize: 18,
    fontWeight: '600',
    marginBottom: 4,
  },
  messageText: {
    fontSize: 14,
    opacity: 0.7,
  },
  progressContainer: {
    marginBottom: 24,
  },
  progressBackground: {
    height: 8,
    backgroundColor: 'rgba(0, 0, 0, 0.1)',
    borderRadius: 4,
    overflow: 'hidden',
    marginBottom: 8,
  },
  progressFill: {
    height: '100%',
    borderRadius: 4,
    overflow: 'hidden',
  },
  progressGradient: {
    flex: 1,
  },
  progressText: {
    fontSize: 14,
    fontWeight: '600',
    textAlign: 'center',
  },
  details: {
    backgroundColor: 'rgba(0, 0, 0, 0.05)',
    borderRadius: 12,
    padding: 16,
    marginBottom: 20,
  },
  detailText: {
    fontSize: 14,
    marginBottom: 8,
  },
  detailValue: {
    fontWeight: '600',
  },
  actions: {
    alignItems: 'center',
  },
  cancelButton: {
    backgroundColor: 'rgba(255, 59, 48, 0.1)',
    borderRadius: 8,
    paddingVertical: 12,
    paddingHorizontal: 24,
    borderWidth: 1,
    borderColor: 'rgba(255, 59, 48, 0.3)',
  },
  cancelButtonText: {
    fontSize: 16,
    fontWeight: '600',
    color: '#FF3B30',
  },
});