<template>
  <div class="video-player-container">
    <!-- 原生播放器 (iOS 微信等环境) -->
    <video
      v-if="useNativePlayer"
      ref="nativeVideoRef"
      class="video-player"
      :src="videoUrlValue"
      :autoplay="props.autoplay"
      :muted="props.autoplay"
      controls
      playsinline
      webkit-playsinline="true"
      x5-playsinline="true"
      x5-video-player-type="h5"
      x5-video-player-fullscreen="true"
      preload="metadata"
      @play="handleNativePlay"
      @pause="handleNativePause"
    />

    <!-- Video.js 播放器 (PC/Android/其他环境) -->
    <VideoPlayer
      v-else
      ref="videoRef"
      :options="videoOptions"
      playsinline
      :class="['video-player', 'vjs-big-play-centered', { loading: !state }]"
      @mounted="handleVideoJsMounted"
      @play="handlePlay"
      @pause="handlePause"
    />

    <!-- 错误提示覆盖层 -->
    <div v-if="showErrorOverlay" class="error-overlay">
      <div class="error-content">
        <div class="error-icon">⚠️</div>
        <div class="error-message">{{ errorMessage }}</div>
        <button @click="retryLoad" class="retry-button">重试</button>
      </div>
    </div>
  </div>
</template>

<script setup>
import { ref } from "vue";
import { VideoPlayer } from "@videojs-player/vue";
import "video.js/dist/video-js.css";
import { useVideoPlayer } from "@/composables/useVideoPlayer";

const props = defineProps({
  options: {
    type: Object,
    required: false,
    default: () => ({}),
  },
  videoUrl: {
    type: String,
    required: true,
  },
  videoId: {
    type: String,
    required: true,
  },
  autoplay: {
    type: Boolean,
    required: false,
    default: true,
  },
  /**
   * iOS 环境下是否强制使用原生播放器
   * 默认为 true (使用原生)，设为 false 则尝试使用 Video.js
   */
  useNativeOnIos: {
    type: Boolean,
    default: true
  }
});

const emit = defineEmits(["onPlay", "onPause"]);

const videoRef = ref(null);
const nativeVideoRef = ref(null);

const {
  player,
  state,
  useNativePlayer,
  videoUrlValue,
  videoOptions,
  showErrorOverlay,
  errorMessage,
  retryLoad,
  handleVideoJsMounted,
  tryNativePlay
} = useVideoPlayer(props, emit, videoRef, nativeVideoRef);

// 事件处理
const handlePlay = (payload) => emit("onPlay", payload);
const handlePause = (payload) => emit("onPause", payload);
const handleNativePlay = (event) => emit("onPlay", event);
const handleNativePause = (event) => emit("onPause", event);

// 暴露方法给父组件
defineExpose({
  pause() {
    if (useNativePlayer.value) {
      try {
        nativeVideoRef.value?.pause?.();
        emit('onPause', nativeVideoRef.value);
      } catch (e) {
        console.warn('Video pause error:', e);
      }
      return;
    }

    if (player.value && !player.value.isDisposed()) {
      try {
        player.value.pause();
        emit('onPause', player.value);
      } catch (e) {
        console.warn('Video pause error:', e);
      }
    }
  },
  play() {
    if (useNativePlayer.value) {
      tryNativePlay();
      return;
    }
    player.value?.play()?.catch(console.warn);
  },
  getPlayer() {
    return useNativePlayer.value ? nativeVideoRef.value : player.value;
  },
  getId() {
    return props.videoId || "meta_id";
  },
});
</script>

<style scoped>
.video-player-container {
  width: 100%;
  height: 100%;
  position: relative;
}

.video-player {
  width: 100%;
  height: 100%;
  display: block;
  aspect-ratio: 16/9;
}

.video-player.loading {
  opacity: 0.6;
}

/* 错误覆盖层样式 */
.error-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.error-content {
  text-align: center;
  color: white;
  padding: 20px;
}

.error-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

.error-message {
  font-size: 16px;
  margin-bottom: 20px;
  line-height: 1.5;
}

.retry-button {
  background: #007bff;
  color: white;
  border: none;
  padding: 10px 20px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  transition: background-color 0.3s;
}

.retry-button:hover {
  background: #0056b3;
}

:deep(.vjs-big-play-button) {
  display: none !important;
}

/* 修复 Video.js 在移动端拖动进度条时的报错 */
:deep(.vjs-progress-control) {
  touch-action: none;
}

:deep(.vjs-progress-holder) {
  touch-action: none;
}

:deep(.video-js) {
  /* 优化移动端交互 */
  touch-action: manipulation;
}

/* 倍速播放控件样式优化 */
:deep(.vjs-playback-rate) {
  order: 7;
  position: relative;
  display: flex !important;
  align-items: center;
  z-index: 10;
  margin-right: 12px;
}

/* 隐藏可能存在的图标 */
:deep(.vjs-playback-rate .vjs-icon-chapters) {
  display: none !important;
}

:deep(.vjs-playback-rate .vjs-playback-rate-value) {
  font-size: 1.5em;
  line-height: 2;
  color: #fff;
  background: transparent;
  border-radius: 4px;
  padding: 0 8px;
  margin: 0;
  transition: all 0.3s ease;
  cursor: pointer;
  min-width: auto;
  text-align: center;
  width: auto;
  display: inline-block;
}

:deep(.vjs-playback-rate:hover .vjs-playback-rate-value) {
  background: transparent;
  transform: scale(1.05);
}

/* 菜单容器优化 - 解决遮挡问题 */
:deep(.vjs-playback-rate .vjs-menu) {
  background: rgba(0, 0, 0, 0.95);
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(15px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  position: absolute;
  bottom: 100%;
  right: 0;
  margin-bottom: 8px;
  min-width: 80px;
  max-height: 200px;
  overflow-y: auto;
  z-index: 1000;
}

/* 确保菜单在视口内显示 */
:deep(.vjs-playback-rate .vjs-menu.vjs-lock-showing) {
  display: block !important;
  opacity: 1 !important;
  visibility: visible !important;
}

:deep(.vjs-playback-rate .vjs-menu-content) {
  padding: 4px 0;
}

:deep(.vjs-playback-rate .vjs-menu-item) {
  color: #fff;
  padding: 10px 16px;
  font-size: 14px;
  transition: all 0.2s ease;
  border-radius: 4px;
  margin: 2px 4px;
  cursor: pointer;
  white-space: nowrap;
  text-align: center;
}

:deep(.vjs-playback-rate .vjs-menu-item:hover) {
  background: rgba(255, 255, 255, 0.15);
  transform: translateX(2px);
}

:deep(.vjs-playback-rate .vjs-menu-item.vjs-selected) {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: #fff;
  font-weight: 600;
}

/* 移动端优化 */
@media (max-width: 768px) {
  :deep(.vjs-playback-rate) {
    display: flex !important;
    visibility: visible !important;
    margin-right: 8px;
  }

  :deep(.vjs-playback-rate .vjs-playback-rate-value) {
    font-size: 1.3em;
    padding: 0 6px;
    min-width: auto;
    height: 36px;
    line-height: 36px;
    width: auto;
    margin: 0;
  }

  :deep(.vjs-playback-rate .vjs-menu) {
    min-width: 100px;
    max-height: 180px;
    bottom: 120%;
    right: -10px;
  }

  :deep(.vjs-playback-rate .vjs-menu-item) {
    padding: 12px 16px;
    font-size: 16px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
}

/* 小屏幕设备进一步优化 */
@media (max-width: 480px) {
  :deep(.vjs-playback-rate) {
    margin-right: 6px;
  }

  :deep(.vjs-playback-rate .vjs-playback-rate-value) {
    font-size: 1.2em;
    padding: 0 4px;
    min-width: auto;
    height: 32px;
    line-height: 32px;
    width: auto;
    margin: 0;
  }

  :deep(.vjs-playback-rate .vjs-menu) {
    min-width: 90px;
    right: -5px;
  }

  :deep(.vjs-playback-rate .vjs-menu-item) {
    padding: 10px 12px;
    font-size: 15px;
    min-height: 40px;
  }
}
</style>