<template>
  <view v-if="pageCount === 1 || need" class="fixed-box"
    :style="[customContainerStyle, { 
      height: containerHeight,
      backgroundImage: bgUrl ? `url(${bgUrl})` : '',
      backgroundSize: 'cover'
    }]">
    <!-- 中英文切换按钮 -->
    <view 
      v-if="isLanguageSwitchEnabled && fixBtnShow"
      class="btn-item common-bg"
      @click="toggleLanguage"
    >
      <text>{{ currentLangDisplayName }}</text>
    </view>
    <!-- 微信官方客服按钮-->
    <button 
      v-if="fixBtnShow && isWeappOfficialKefu"
      class="btn-item common-bg"
      open-type="contact"
      :style="{ backgroundImage: currentKefuImg ? `url(${currentKefuImg})` : '', backgroundSize: '100% 100%' }"
    >
      <text class="ai-icon" v-if="!currentKefuImg">🤖</text>
    </button>

    <!-- 其他类型客服按钮 -->
    <view 
      v-else-if="fixBtnShow"
      class="btn-item common-bg"
      @click="handleUnifiedKefuClick"
      :style="{ backgroundImage: currentKefuImg ? `url(${currentKefuImg})` : '', backgroundSize: '100% 100%' }"
    >
      <text class="ai-icon" v-if="!currentKefuImg">🤖</text>
    </view>

    <!-- 小程序系统客服按钮 -->
    <button 
      v-if="fixBtnShow && showWeappSystemKefu"
      class="btn-item common-bg"
      open-type="contact"
      :style="{ backgroundImage: currentKefuImg ? `url(${currentKefuImg})` : '', backgroundSize: '100% 100%' }"
    >
      <text class="ai-icon" v-if="!currentKefuImg">💬</text>
    </button>

    

    <!-- 电话按钮 -->
    <view 
      v-if="fixBtnShow" 
      class="btn-item common-bg"
      @click="call"
      :style="[{ backgroundImage: phoneimg ? `url(${phoneimg})` : '', backgroundSize: '100% 100%' }, customButtonStyle]"
    >
      <text class="iconfont icon-dianhua" v-if="!phoneimg"></text>
    </view>

  </view>
</template>

<script>
import { createCustomerService } from '@/common/js/customer-service.js';

export default {
  name: 'hover-nav',
  props: {
    need: { type: Boolean, default: false }
  },
  data() {
    return {
      pageCount: 0,
      fixBtnShow: true,
      shopInfo: null,
      currentLangIndex: 0,
      langIndexMap: {},
      customerService: null, 
    };
  },
  computed: {
    bgUrl() {
      return this.shopInfo?.bgUrl || '';
    },
    aiAgentimg() {
      return this.shopInfo?.aiAgentimg || '';
    },
    kefuimg() {
      return this.shopInfo?.kefuimg || this.$util.getDefaultImage().kefu;
    },
    phoneimg() {
      return this.shopInfo?.phoneimg || this.$util.getDefaultImage().phone;
    },
    tel() {
      return this.shopInfo?.mobile || '';
    },
    isLanguageSwitchEnabled() {
      return !!this.shopInfo?.ischina;
    },
    currentLangDisplayName() {
      const lang = this.langIndexMap[this.currentLangIndex];
      return lang === 'zh-cn' ? 'EN' : 'CN';
    },
    customContainerStyle() {
      return this.shopInfo?.floatingButton?.container || {};
    },
    customButtonStyle() {
      return this.shopInfo?.floatingButton?.button || {};
    },
    unreadCount() {
      return this.customerService?.getUnreadCount() || 0;
    },
    currentKefuImg() {
      return this.customerService?.getKefuButtonIcon() || '';
    },
    isWeappOfficialKefu() {
      return this.customerService?.isWeappOfficialKefu() || false;
    },
    showWeappSystemKefu() {
      return this.customerService?.shouldShowExtraWeappSystemKefu() || false;
    },
    //根据显示的按钮数量动态计算容器高度
       containerHeight() {
         if (!this.fixBtnShow) return '320rpx';
       
         let buttonCount = 1;
         if (this.isLanguageSwitchEnabled) buttonCount++;
         if (this.showWeappSystemKefu) buttonCount++;
         buttonCount++; 
         const totalRpx = 94 * buttonCount - 14;
         const pxValue = Math.round(totalRpx * 0.5);
         return ` $ {pxValue}px`;
       }
      },
  watch: {
    shopInfo: {
      handler(newVal) {
      },
      immediate: true
    }
  },
  created() {
    this.initLanguage();
    this.pageCount = getCurrentPages().length;
    uni.getStorage({
      key: 'shopInfo',
      success: (e) => {
        console.log('【调试】当前 shopInfo:', e.data);
        this.shopInfo = e.data;
      },
      fail: () => {
        console.warn('未获取到 shopInfo，使用默认设置');
      }
    });
    // 初始化 customerService 实例
    this.customerService = createCustomerService(this);
  },
  methods: {
    initLanguage() {
      this.langList = this.$langConfig.list();
      this.langIndexMap = {};
      for (let i = 0; i < this.langList.length; i++) {
        this.langIndexMap[i] = this.langList[i].value;
      }
      const savedLang = this.$langConfig.getCurrentLocale();
      if (savedLang) {
        for (let i = 0; i < this.langList.length; i++) {
          if (this.langList[i].value === savedLang) {
            this.currentLangIndex = i;
            break;
          }
        }
      } else {
        this.currentLangIndex = 0;
      }
    },

    call() {
      this.customerService.makePhoneCallByNumber(this.tel);
    },

    toggleLanguage() {
      this.currentLangIndex = this.currentLangIndex === 0 ? 1 : 0;
      const targetLang = this.langIndexMap[this.currentLangIndex];

      // 调用语言切换逻辑（设置 storage + 清空缓存）
      this.$langConfig.change(targetLang);
    },

    handleUnifiedKefuClick() {
      this.customerService.handleUnifiedKefuClick({
        sendMessageTitle: '来自悬浮按钮的咨询',
        sendMessagePath: '/pages/index/index'
      });
    }
  }
}
</script>

<style lang="scss" scoped>
.fixed-box {
  position: fixed;
  right: 0rpx;
  bottom: 240rpx;
  /* #ifdef H5 */
  bottom: 320rpx;
  /* #endif */
  z-index: 10;
  border-radius: 120rpx;
  padding: 20rpx 0;
  display: flex;
  justify-content: center;
  flex-direction: column;
  width: 100rpx;
  box-sizing: border-box;
  transition: 0.3s;
  overflow: hidden;
}

.btn-item {
  display: flex;
  justify-content: center;
  text-align: center;
  flex-direction: column;
  line-height: 1;
  margin: 14rpx 0;
  transition: 0.1s;
  color: var(--hover-nav-text-color);
  border-radius: 50%;
  width: 80rpx;
  height: 80rpx;
  padding: 0;
  overflow: hidden;
}

.common-bg {
  background-color: var(--hover-nav-bg-color); 
}

.btn-item text {
  font-size: 28rpx;
}

.iconfont,
.icox {
  font-size: 36rpx;
  font-weight: bold;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 14rpx 0;
  border-radius: 50rpx;
  width: 80rpx;
  height: 80rpx;
  padding: 0;
  position: relative;
}

.iconfont text,
.icox text {
  font-size: 36rpx;
  font-weight: bold;
}

.ai-icon {
  font-size: 40rpx;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
</style>