<template>
  <Transition name="slide-up">
    <div 
      v-show="bottomPanelVisible"
      class="bottom-panel"
      @mouseenter="showBottomPanel"
      @mousemove="showBottomPanel"
    >
      <!-- 左侧：频道信息 -->
      <div class="panel-left">
        <div class="channel-logo">
          {{ getChannelLogo(channel?.name) }}
        </div>
        <div class="channel-info">
          <div class="channel-name-row">
            <span class="name">{{ channel?.name || '未选择频道' }}</span>
            <span class="source-tag">线路 {{ currentSourceIndex + 1 }}/{{ channel?.urls?.length || 0 }}</span>
          </div>
          <div class="program-info">
            <span class="live-dot">●</span>
            <span class="program-title">{{ currentProgram || '精彩节目' }}</span>
          </div>
          <div class="progress-bar">
            <div class="progress-fill" :style="{ width: progress + '%' }"></div>
            <span class="time-label">{{ currentTime }} / {{ totalTime }}</span>
          </div>
        </div>
      </div>

      <!-- 右侧：操作按钮 -->
      <div class="panel-right">
        <button 
          class="action-btn"
          :class="{ active: isFavorite }"
          @click="handleFavorite"
          @mouseenter="showBottomPanel"
        >
          <span class="icon">★</span>
          <span>{{ isFavorite ? '已收藏' : '收藏' }}</span>
        </button>
        
        <button 
          class="action-btn"
          @click="handleSwitchSource"
          @mouseenter="showBottomPanel"
        >
          <span class="icon">↻</span>
          <span>切换线路</span>
        </button>
        
        <button 
          class="action-btn"
          @click="handleSettings"
          @mouseenter="showBottomPanel"
        >
          <span class="icon">⚙</span>
          <span>设置</span>
        </button>
      </div>
    </div>
  </Transition>
</template>

<script setup>
const props = defineProps({
  channel: {
    type: Object,
    default: null
  },
  currentSourceIndex: {
    type: Number,
    default: 0
  },
  currentProgram: {
    type: String,
    default: ''
  },
  progress: {
    type: Number,
    default: 0
  },
  currentTime: {
    type: String,
    default: '--:--'
  },
  totalTime: {
    type: String,
    default: '--:--'
  },
  isFavorite: {
    type: Boolean,
    default: false
  }
});

const emit = defineEmits(['favorite', 'switch-source', 'settings']);

import { useUI } from "../../composables/useUI.js";
const { bottomPanelVisible, showBottomPanel } = useUI();

// 获取频道 LOGO
function getChannelLogo(name) {
  return name ? name.slice(0, 2) : '--';
}

// 收藏
function handleFavorite() {
  emit('favorite');
  showBottomPanel();
}

// 切换线路
function handleSwitchSource() {
  emit('switch-source');
}

// 设置
function handleSettings() {
  emit('settings');
}
</script>

<style scoped>
.bottom-panel {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  height: 80px;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  z-index: 50;
}

/* 左侧信息 */
.panel-left {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
  min-width: 0;
}

.channel-logo {
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: bold;
  color: rgba(255, 255, 255, 0.8);
  flex-shrink: 0;
}

.channel-info {
  flex: 1;
  min-width: 0;
}

.channel-name-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 4px;
}

.channel-name-row .name {
  font-size: 16px;
  font-weight: 500;
  color: #fff;
}

.source-tag {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.6);
  background: rgba(255, 255, 255, 0.1);
  padding: 2px 8px;
  border-radius: 4px;
}

.program-info {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 6px;
}

.live-dot {
  color: #ff4444;
  font-size: 10px;
}

.progress-bar {
  height: 3px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 2px;
  position: relative;
}

.progress-fill {
  height: 100%;
  background: #fff;
  border-radius: 2px;
  transition: width 0.3s;
}

.time-label {
  position: absolute;
  right: 0;
  top: -16px;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.5);
}

/* 右侧按钮 */
.panel-right {
  display: flex;
  gap: 8px;
}

.action-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  background: transparent;
  border: none;
  color: rgba(255, 255, 255, 0.7);
  font-size: 13px;
  cursor: pointer;
  border-radius: 6px;
  transition: all 0.2s;
}

.action-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
}

.action-btn.active {
  color: #ffd700;
}

.action-btn .icon {
  font-size: 14px;
}

/* 滑入动画 */
.slide-up-enter-active,
.slide-up-leave-active {
  transition: transform 0.3s ease;
}

.slide-up-enter-from,
.slide-up-leave-to {
  transform: translateY(100%);
}
</style>
