<script setup>
import { ref, computed, onMounted, onBeforeUnmount } from "vue"
import lockClosed from "@/static/images/lockdfd@2x.png"
import lockOpen from "@/static/images/lock4@2x.png"
import { liveStore } from "@/stores/live/index.js"
import xButton from '@/components/x-button/index.vue'
import tangPopup from './tangPopup.vue'
import { goodStore } from "@/stores/goods/index.js"
import { authStore } from "~/stores/auth/index.js"
import {showMinWindow} from "~/components/liveMinWindow/createMinWindow.js";

const { quoteStatus, changeStatus, show, auctionData, getSocketData ,lastSnapshot,fullLive} = liveStore()
const { pageRef } = goodStore()
const { userInfo } = authStore()
const showTang = ref(false)
const router = useRouter()
// 拖动相关状态
const isDragging = ref(false)
const startX = ref(0)
const startY = ref(0)
const currentTop = ref(196)
const currentLeft = ref(window.innerWidth - 60)
const sidebarRef = ref(null)

// 限制拖动范围
const minTop = 0
const maxTop = window.innerHeight - 180
const minLeft = 0
const maxLeft = window.innerWidth - 60

// 吸附相关
const snapThreshold = 30
const snapPosition = () => {
  const centerX = currentLeft.value + 30
  if (centerX < window.innerWidth / 2) {
    currentLeft.value = 0
  } else {
    currentLeft.value = window.innerWidth - 60
  }
}

// 开始拖动
const handleMouseDown = (e) => {
  isDragging.value = true
  startX.value = e.clientX - currentLeft.value
  startY.value = e.clientY - currentTop.value
  document.addEventListener('mousemove', handleMouseMove)
  document.addEventListener('mouseup', handleMouseUp)
}

// 拖动中
const handleMouseMove = (e) => {
  if (!isDragging.value) return

  let newTop = e.clientY - startY.value
  let newLeft = e.clientX - startX.value

  // 限制范围
  newTop = Math.max(minTop, Math.min(newTop, maxTop))
  newLeft = Math.max(minLeft, Math.min(newLeft, maxLeft))

  currentTop.value = newTop
  currentLeft.value = newLeft

  // 更新位置
  if (sidebarRef.value) {
    sidebarRef.value.style.top = `${newTop}px`
    sidebarRef.value.style.left = `${newLeft}px`
  }
}

// 结束拖动
const handleMouseUp = () => {
  isDragging.value = false
  snapPosition()
  if (sidebarRef.value) {
    sidebarRef.value.style.left = `${currentLeft.value}px`
  }
  document.removeEventListener('mousemove', handleMouseMove)
  document.removeEventListener('mouseup', handleMouseUp)
}

// 触摸事件处理
const handleTouchStart = (e) => {
  isDragging.value = true
  startX.value = e.touches[0].clientX - currentLeft.value
  startY.value = e.touches[0].clientY - currentTop.value
}

const handleTouchMove = (e) => {
  if (!isDragging.value) return

  let newTop = e.touches[0].clientY - startY.value
  let newLeft = e.touches[0].clientX - startX.value

  newTop = Math.max(minTop, Math.min(newTop, maxTop))
  newLeft = Math.max(minLeft, Math.min(newLeft, maxLeft))

  currentTop.value = newTop
  currentLeft.value = newLeft

  if (sidebarRef.value) {
    sidebarRef.value.style.top = `${newTop}px`
    sidebarRef.value.style.left = `${newLeft}px`
  }
}

const handleTouchEnd = () => {
  isDragging.value = false
  snapPosition()
  if (sidebarRef.value) {
    sidebarRef.value.style.left = `${currentLeft.value}px`
  }
}

const captureVideoFrame = () => {
  try {
    const video = document.querySelector('#J_prismPlayer video')
    if (!video) {
      console.error('未找到视频元素')
      return null
    }

    const canvas = document.createElement('canvas')
    canvas.width = video.videoWidth
    canvas.height = video.videoHeight

    const ctx = canvas.getContext('2d')
    ctx.drawImage(video, 0, 0, canvas.width, canvas.height)
    return canvas.toDataURL('image/jpeg', 0.9)
  } catch (error) {
    console.error('获取视频截图失败:', error)
    return null
  }
}

const handleCapture = () => {
  const imageUrl = captureVideoFrame()
  if (imageUrl) {
    lastSnapshot.value=imageUrl
    showMinWindow(lastSnapshot.value,{
      onClick:()=>{
        router.replace('/')
        fullLive.value=true
        console.log('执行')
      }
    })
  }
}

// 组件挂载时添加事件监听
onMounted(() => {
  if (sidebarRef.value) {
    sidebarRef.value.style.top = `${currentTop.value}px`
    sidebarRef.value.style.left = `${currentLeft.value}px`
  }
})

// 组件卸载时清理事件监听
onBeforeUnmount(() => {
  document.removeEventListener('mousemove', handleMouseMove)
  document.removeEventListener('mouseup', handleMouseUp)
})

const openOne = () => {
  showTang.value = true
}

const paySide = computed(() => {
  //当前是否已成交，以及成交人是当前登录用户
  if (auctionData.value.artwork?.isSoled && auctionData.value.artwork?.buyInfo.userID === userInfo.value.ID) {
    return true
  } else {
    return false
  }
})

const goPay = () => {
  handleCapture()
  router.push('/signature/protocol')
}
</script>

<template>
  <div
      ref="sidebarRef"
      class="bg-white w-60px rounded-4px overflow-hidden absolute z-999 cursor-move"
      @mousedown="handleMouseDown"
      @touchstart="handleTouchStart"
      @touchmove="handleTouchMove"
      @touchend="handleTouchEnd"
  >
    <!-- 拍品信息 -->
    <van-button
        class="w-60px !h-60px"
        @click="openOne"
        style="border: none;border-radius: 0"
    >
      <div class="text-center flex flex-col justify-center items-center text-#7D7D7F text-12px">
        <div>{{ $t('live_room.lots') }}</div>
        <div>({{ auctionData?.artwork?.index }}/{{ pageRef.itemCount ?? 0 }})</div>
      </div>
    </van-button>

    <tangPopup v-model:show="showTang"></tangPopup>

    <!-- 出价开关 -->
    <van-button
        class="w-60px !h-60px"
        @click="changeStatus"
        style="border-right: none;border-left: none;border-radius: 0;padding: 0"
    >
      <div class="text-center flex flex-col justify-center items-center">
        <div class="mb-4px">
          <img
              :src="quoteStatus ? lockClosed : lockOpen"
              class="w-16px h-21px"
              alt="锁图标"
          />
        </div>
        <div
            :class="quoteStatus ? 'text-gray-500' : 'text-blue-600'"
            class="text-10px transition-colors duration-200"
        >
          {{ quoteStatus ? $t('live_room.colse_bid') : $t('live_room.start_bid') }}
        </div>
      </div>
    </van-button>

    <!-- 支付 -->
    <van-button
        v-if="paySide"
        class="w-60px !h-60px"
        style="border: none;border-radius: 0"
        @click="goPay"
    >
      <div class="text-center flex flex-col justify-center items-center text-yellow-600">
        <div class="text-10px">{{auctionData?.nowAuctionPrice?.currency}}</div>
        <div class="text-12px">{{auctionData?.nowAuctionPrice?.successPrice}}</div>
        <div class="text-10px">{{ $t('art_detail_page.button') }}</div>
      </div>
    </van-button>
  </div>
</template>

<style scoped>
.cursor-move {
  cursor: move;
  user-select: none;
  touch-action: none;
  transition: left 0.3s ease;
}
</style>