<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryRef" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="事件日期" style="width: 308px">
        <el-date-picker v-model="daterangeEventDate" type="daterange" range-separator="-" start-placeholder="开始日期"
          end-placeholder="结束日期" value-format="YYYY-MM-DD" />
      </el-form-item>
      <el-form-item label="管理耳号" prop="manageTagsList">
        <div style="display:flex;align-items:center;gap:8px;flex-wrap:wrap;">
          <!-- 主选择器：不展示已选标签 -->
          <el-select v-model="queryParams.manageTagsList" multiple filterable remote reserve-keyword
            placeholder="输入耳号搜索" :remote-method="searchEarNumber" :loading="earLoading" allow-create
            default-first-option collapse-tags :max-collapse-tags="0" style="width:300px" @change="handleEarChange">
            <el-option v-for="item in earOptions" :key="item" :label="item" :value="item" />
          </el-select>

          <!-- 批量粘贴框 -->
          <el-input v-model="pasteText" placeholder="或粘贴多个耳号(空格/换行/逗号分隔)" style="width:300px" @paste="handlePaste"
            @keyup.enter="handlePasteSubmit" clearable>
            <template #append>
              <el-button @click="handlePasteSubmit" :icon="Plus">添加</el-button>
            </template>
          </el-input>

          <!-- 计数标签 -->
          <el-tag v-if="queryParams.manageTagsList && queryParams.manageTagsList.length" type="info" effect="plain"
            size="large">
            已选: {{ queryParams.manageTagsList.length }} 个
          </el-tag>

          <!-- 一键清空 -->
          <el-button type="danger" plain :icon="Delete" @click="clearEarNumbers"
            v-if="queryParams.manageTagsList && queryParams.manageTagsList.length">
            清空全部
          </el-button>
        </div>

        <!-- 已选耳号展示区（可折叠） -->
        <div v-if="queryParams.manageTagsList && queryParams.manageTagsList.length" class="selected-ear-numbers">
          <el-tag v-for="tag in displayedEarTags" :key="tag" closable @close="removeEarNumber(tag)" style="margin:4px"
            type="success">
            {{ tag }}
          </el-tag>

          <el-button v-if="queryParams.manageTagsList.length > defaultShowCount" type="primary" link
            @click="toggleExpand">
            {{ isExpanded ? '收起' : `展开剩余 ${queryParams.manageTagsList.length - defaultShowCount} 个` }}
            <el-icon class="el-icon--right">
              <component :is="isExpanded ? ArrowUp : ArrowDown" />
            </el-icon>
          </el-button>
        </div>
      </el-form-item>
      <el-form-item label="原品种" prop="varietyOld">
        <el-select v-model="queryParams.varietyOld" placeholder="请选择原品种" clearable filterable>
          <el-option v-for="item in varietyOptions" :key="item.value" :label="item.label" :value="item.value" />
        </el-select>
      </el-form-item>
      <el-form-item label="新品种" prop="varietyNew">
        <el-select v-model="queryParams.varietyNew" placeholder="请选择新品种" clearable filterable>
          <el-option v-for="item in varietyOptions" :key="item.value" :label="item.label" :value="item.value" />
        </el-select>
      </el-form-item>
      <!-- <el-form-item label="羊舍" prop="sheepfoldId">
        <el-select v-model="queryParams.sheepfoldId" placeholder="请选择羊舍" style="min-width:150px" clearable>
          <el-option v-for="fold in sheepfoldOptions" :key="fold.id" :label="fold.sheepfoldName" :value="fold.id" />
        </el-select>
      </el-form-item> -->
      <el-form-item label="技术员" prop="technician">
        <el-select v-model="queryParams.technician" placeholder="请选择技术员" clearable filterable style="max-width: 160px">
          <el-option v-for="item in technicalOptions" :key="item.value" :label="item.label" :value="item.value" />
        </el-select>
      </el-form-item>
      <el-form-item label="是否在群" prop="isDelete">
        <el-select v-model="queryParams.isDelete" placeholder="全部" clearable style="min-width:120px">
          <el-option label="全部" value="" />
          <el-option label="在群" :value="0" />
          <el-option label="离群" :value="1" />
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="Search" @click="handleQuery">搜索</el-button>
        <!-- <el-button icon="Refresh" @click="resetQuery">重置</el-button> -->
      </el-form-item>
    </el-form>
    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button type="primary" plain icon="Plus" @click="handleAdd"
          v-hasPermi="['changeVariety:changeVariety:add']">新增</el-button>
      </el-col>
      <!-- <el-col :span="1.5">
        <el-button type="success" plain icon="Edit" :disabled="single" @click="handleUpdate"
          v-hasPermi="['changeVariety:changeVariety:edit']">修改</el-button>
      </el-col> -->
      <el-col :span="1.5">
        <el-button type="danger" plain icon="Delete" :disabled="multiple" @click="handleDelete"
          v-hasPermi="['changeVariety:changeVariety:remove']">删除</el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button type="warning" plain icon="Download" @click="handleExport"
          v-hasPermi="['changeVariety:changeVariety:export']">导出</el-button>
      </el-col>
      <right-toolbar v-model:showSearch="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="changeVarietyList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center" />
      <el-table-column label="管理耳号" align="center" prop="manageTags" />
      <el-table-column label="品种" align="center" prop="varietyOld" />
      <el-table-column label="事件类型" align="center" prop="eventType" width="120" />
      <el-table-column label="事件日期" align="center" prop="eventDate">
        <template #default="scope">
          <span>{{ parseTime(scope.row.eventDate, '{y}-{m}-{d}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="新品种" align="center" prop="varietyNew" />
      <el-table-column label="旧品种" align="center" prop="varietyOld" />
      <el-table-column label="羊舍" align="center" prop="sheepfoldName" />
      <el-table-column label="技术员" align="center" prop="technician" />
      <el-table-column label="创建人" align="center" prop="createBy" />
      <el-table-column label="创建日期" align="center" prop="createTime" width="180">
        <template #default="scope">
          <span>{{ parseTime(scope.row.createTime, '{y}-{m}-{d} {h}:{i}') }}</span>
        </template>
      </el-table-column>
      <el-table-column label="备注" align="center" prop="comment" />
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template #default="scope">
          <!-- <el-button link type="primary" icon="Edit" @click="handleUpdate(scope.row)"
            v-hasPermi="['changeVariety:changeVariety:edit']">修改</el-button> -->
          <el-button link type="primary" icon="Delete" @click="handleDelete(scope.row)"
            v-hasPermi="['changeVariety:changeVariety:remove']">删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination v-show="total > 0" :total="total" v-model:page="queryParams.pageNum"
      v-model:limit="queryParams.pageSize" @pagination="getList" :page-sizes="[20, 50, 100, 200, 500, 1000, 2000]" />

    <!-- 添加或修改改品种记录对话框 -->
    <el-dialog :title="title" v-model="open" width="500px" append-to-body>
      <el-form ref="changeVarietyRef" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="管理耳号" prop="manageTags">
          <el-input v-model="form.manageTags" placeholder="请输入管理耳号，支持批量输入（空格/换行/逗号分隔）" @blur="onManageTagsBlur"
            :disabled="!isAdd" />
        </el-form-item>

        <!-- 新增弹窗已选耳号展示区（和改备注、转群完全一致） -->
        <div v-if="batchTags.length" class="selected-ear-numbers" style="margin-left: 80px; margin-bottom: 18px;">
          <el-tag v-for="(tag, idx) in batchTags" :key="tag" closable @close="removeBatchTag(idx)" style="margin:4px"
            type="success">
            {{ tag }}
          </el-tag>

          <el-button type="primary" link @click="clearBatchTags">
            一键清空 ({{ batchTags.length }})
          </el-button>
        </div>
        <el-form-item label="原品种" prop="varietyOld">
          <span v-if="batchSheep.length === 0" class="placeholder-text">请输入耳号后自动获取</span>
          <div v-else class="variety-old-list">
            <el-tag v-for="(sheep, idx) in batchSheep" :key="sheep.id" type="warning" effect="plain" size="small"
              style="margin: 2px 4px 2px 0;">
              {{ sheep.varietyName || '未知品种' }}
            </el-tag>
          </div>
        </el-form-item>
        <el-form-item label="新品种" prop="varietyNew">
          <el-select v-model="form.varietyNew" placeholder="请选择新品种" clearable filterable :disabled="!isAdd">
            <el-option v-for="item in varietyOptions" :key="item.value" :label="item.label" :value="item.value" />
          </el-select>
        </el-form-item>
        <el-form-item label="事件日期" prop="eventDate">
          <el-date-picker v-model="form.eventDate" type="date" placeholder="请选择事件日期" value-format="YYYY-MM-DD"
            :disabled="!isAdd" />
        </el-form-item>
        <el-form-item label="技术员" prop="technician">
          <el-select v-model="form.technician" placeholder="请选择技术员" :disabled="!isAdd" clearable filterable
            style="width: 100%">
            <el-option v-for="item in technicalOptions" :key="item.value" :label="item.label" :value="item.value" />
          </el-select>
        </el-form-item>
        <el-form-item label="备注" prop="comment">
          <el-input v-model="form.comment" placeholder="请填写备注" type="textarea" rows="2" />
        </el-form-item>
      </el-form>
      <template #footer>
        <div class="dialog-footer">
          <el-button type="primary" @click="submitForm">确 定</el-button>
          <el-button @click="cancel">取 消</el-button>
        </div>
      </template>
    </el-dialog>
  </div>
</template>

<script setup name="ChangeVariety">
import { listChangeVariety, getChangeVariety, delChangeVariety, addChangeVariety, updateChangeVariety, getSheepByManageTags, searchEarNumbers } from "@/api/produce/manage_sheep/changeVariety"
import { listSheepfold_management as listSheepfold } from '@/api/fileManagement/sheepfold_management'
import { listVariety } from '@/api/fileManagement/variety'
import dayjs from 'dayjs'
import { nextTick } from 'vue'
import { Plus, Delete, ArrowUp, ArrowDown } from '@element-plus/icons-vue'
import { getUserByPost } from '@/api/common/user'
const { proxy } = getCurrentInstance()
// 技术员下拉选项
const technicalOptions = ref([])

// 获取技术员列表（岗位编码：techs）
const fetchTechnicalList = () => {
  getUserByPost({ postCode: "techs" })
    .then(res => {
      if (res.code === 200 && Array.isArray(res.data)) {
        technicalOptions.value = res.data.map(item => ({
          value: item.nickName,
          label: item.nickName
        }))
      } else {
        technicalOptions.value = []
      }
    })
    .catch(() => {
      technicalOptions.value = []
    })
}
const changeVarietyList = ref([])
const open = ref(false)
const loading = ref(true)
const showSearch = ref(true)
const ids = ref([])
const single = ref(true)
const multiple = ref(true)
const total = ref(0)
const title = ref("")
const daterangeCreateTime = ref([])
const isAdd = ref(false);

const varietyOptions = ref([])
const daterangeEventDate = ref([]);

const pasteText = ref('')               // 批量粘贴输入框
const isExpanded = ref(false)           // 折叠状态
const defaultShowCount = 2              // 默认展示条数
const batchTags = ref([])      // 本次要新增的多条耳号
const batchSheep = ref([])     // 对应的羊只对象
/* 计算：控制实际展示的耳号列表 */
const displayedEarTags = computed(() => {
  const list = queryParams.value.manageTagsList || []
  if (isExpanded.value || list.length <= defaultShowCount) return list
  return list.slice(0, defaultShowCount)
})

const data = reactive({
  form: {
    manageTags: null,
    technician: null,
    eventDate: null
  },
  queryParams: {
    pageNum: 1,
    pageSize: 20,
    manageTags: null,
    sheepfoldId: null,
    varietyOld: null,
    varietyNew: null,
    createTime: null,
    isDelete: null,
  },
  rules: {
    manageTags: [
      { required: true, message: "请输入管理耳号", trigger: "blur" }
    ],
    varietyOld: [
      { required: true, message: "请选择原品种", trigger: "blur" }
    ],
    varietyNew: [
      { required: true, message: "请选择新品种", trigger: "blur" }
    ],
    technician: [
      { required: true, message: "请输入技术员", trigger: "blur" }
    ],
    eventDate: [
      { required: true, message: "请选择事件日期", trigger: "change" }
    ]
  }
})

const { queryParams, form, rules } = toRefs(data)
const earOptions = ref([])
const earLoading = ref(false)
/** 查询改品种记录列表 */
function getList() {
  loading.value = true
  queryParams.value.params = {}
  if (null != daterangeCreateTime && '' != daterangeCreateTime) {
    queryParams.value.params["beginCreateTime"] = daterangeCreateTime.value[0]
    queryParams.value.params["endCreateTime"] = daterangeCreateTime.value[1]
  }
  if (queryParams.value.sheepfoldId) {
    queryParams.value.params["sheepfoldId"] = queryParams.value.sheepfoldId;
  }
  if (daterangeEventDate.value.length > 0) {
    queryParams.value.params["beginEventDate"] = daterangeEventDate.value[0];
    queryParams.value.params["endEventDate"] = daterangeEventDate.value[1];
  }
  listChangeVariety(queryParams.value).then(response => {
    changeVarietyList.value = response.rows
    total.value = response.total
    loading.value = false
  })
}

function loadVarietyOptions() {
  listVariety().then(res => {
    varietyOptions.value = res.rows.map(item => ({
      label: item.variety,
      value: item.variety
    }))
  })
}

// 取消按钮
function cancel() {
  open.value = false
  reset()
}

// 表单重置
function reset() {
  form.value = {
    id: null,
    sheepId: null,
    varietyOld: null,
    varietyNew: null,
    comment: null,
    createBy: null,
    createTime: null,
    manageTags: ''
  }
  batchTags.value = []      // 清空
  batchSheep.value = []     // 清空
  proxy.resetForm("changeVarietyRef")
}

/** 搜索按钮操作 */
function handleQuery() {
  loadVarietyOptions()
  queryParams.value.pageNum = 1
  if (daterangeEventDate.value.length > 0) {
    queryParams.value.beginEventDate = daterangeEventDate.value[0];
    queryParams.value.endEventDate = daterangeEventDate.value[1];
  } else {
    queryParams.value.beginEventDate = null;
    queryParams.value.endEventDate = null;
  }
  getList()
}

/** 重置按钮操作 */
function resetQuery() {
  daterangeCreateTime.value = []
  queryParams.value.sheepfoldId = null
  daterangeEventDate.value = []
  queryParams.value.isDelete = null
  queryParams.value.manageTagsList = []
  proxy.resetForm("queryRef")
  handleQuery()
}

// 多选框选中数据
function handleSelectionChange(selection) {
  ids.value = selection.map(item => item.id)
  single.value = selection.length != 1
  multiple.value = !selection.length
}

/** 新增按钮操作 */
function handleAdd() {
  reset()
  isAdd.value = true
  loadVarietyOptions()
  open.value = true
  title.value = "添加改品种记录"
  form.value.eventDate = dayjs().format('YYYY-MM-DD')
}

/** 修改按钮操作 */
function handleUpdate(row) {
  reset()
  isAdd.value = false
  loadVarietyOptions()
  const _id = row.id || ids.value
  getChangeVariety(_id).then(response => {
    form.value = response.data
    open.value = true
    title.value = "修改改品种记录"
  })
}

/** 提交按钮 */
function submitForm() {
  if (batchTags.value.length === 0) {
    proxy.$modal.msgError('请输入至少一个有效耳号')
    return
  }

  // 批量构建提交数据
  const requests = batchTags.value.map((tag, idx) => {
    const sheep = batchSheep.value[idx]
    const submitData = {
      sheepId: sheep.id,
      manageTags: tag,
      varietyOld: sheep.varietyName || "",
      varietyNew: form.value.varietyNew,
      eventDate: form.value.eventDate,
      technician: form.value.technician,
      comment: form.value.comment || ''
    }
    return addChangeVariety(submitData)
  })

  Promise.all(requests)
    .then(() => {
      proxy.$modal.msgSuccess(`成功新增 ${batchTags.value.length} 条改品种记录`)
      open.value = false
      getList()
    })
    .catch(() => {
      proxy.$modal.msgError('新增失败')
    })
}

/** 删除按钮操作 */
function handleDelete(row) {
  const _ids = row.id || ids.value
  proxy.$modal.confirm('是否确认删除这条记录数据').then(function () {
    return delChangeVariety(_ids)
  }).then(() => {
    getList()
    proxy.$modal.msgSuccess("删除成功")
  }).catch(() => { })
}

/** 导出按钮操作 */
function handleExport() {
  queryParams.value.ids = ids.value;
  
  try {
    proxy.download('changeVariety/changeVariety/export', 
      { ...queryParams.value }, 
      `改品种记录_${Date.now()}.xlsx`
    );
  } finally {
    queryParams.value.ids = null;
  }
}

//加载羊舍数据
const sheepfoldOptions = ref([])
function getSheepfoldOptions() {
  listSheepfold({ pageNum: 1, pageSize: 9999 }).then(res => {
    sheepfoldOptions.value = res.rows
  })
}
function searchEarNumber(query) {
  if (!query) { earOptions.value = []; return }
  earLoading.value = true
  searchEarNumbers(query.trim()).then(res => {
    earOptions.value = res.data || []
  }).finally(() => earLoading.value = false)
}
/* 粘贴事件 */
function handlePaste() {
  nextTick(() => handlePasteSubmit())
}

/* 批量提交 */
function handlePasteSubmit() {
  if (!pasteText.value || !pasteText.value.trim()) return
  const separators = /[\p{White_Space},，\n\r\t]+/u
  const raw = pasteText.value.trim().split(separators).filter(v => v)
  const exist = new Set(queryParams.value.manageTagsList || [])
  const adds = []
  const dups = []
  raw.forEach(v => {
    if (!exist.has(v)) { adds.push(v); exist.add(v) }
    else dups.push(v)
  })
  if (adds.length) {
    queryParams.value.manageTagsList = [...(queryParams.value.manageTagsList || []), ...adds]
    proxy.$modal.msgSuccess(`成功添加 ${adds.length} 个耳号，当前共 ${queryParams.value.manageTagsList.length} 个` +
      (dups.length > 0 ? `，已忽略 ${dups.length} 个重复耳号` : ''))
  } else if (dups.length > 0) {
    proxy.$modal.msgWarning('所有耳号均已存在')
  }
  pasteText.value = ''
}

/* 切换展开/收起 */
function toggleExpand() {
  isExpanded.value = !isExpanded.value
}

/* 选择器变化时去重 */
function handleEarChange(val) {
  queryParams.value.manageTagsList = [...new Set(val)]
}

/* 一键清空 */
function clearEarNumbers() {
  queryParams.value.manageTagsList = []
  pasteText.value = ''
  isExpanded.value = false
}

/* 删除单个耳号 */
function removeEarNumber(tag) {
  const idx = queryParams.value.manageTagsList.indexOf(tag)
  if (idx > -1) queryParams.value.manageTagsList.splice(idx, 1)
}

// 校验和回显（支持单条和批量，和改备注、转群完全一致）
async function onManageTagsBlur() {
  const raw = form.value.manageTags?.trim()
  if (!raw) return

  // 1. 先按分隔符拆
  const separators = /[\p{White_Space},，]+/u
  const tags = [...new Set(raw.split(separators).filter(v => v))]

  // 2. 批量校验（包括单条的情况）
  batchTags.value = []
  batchSheep.value = []

  for (const tag of tags) {
    try {
      const { data: sheep } = await getSheepByManageTags(tag.trim())
      if (sheep) {
        batchTags.value.push(tag)
        batchSheep.value.push(sheep)
      } else {
        proxy.$modal.msgWarning(`耳号 ${tag} 未找到对应羊只，已跳过`)
      }
    } catch (err) {
      proxy.$modal.msgWarning(`耳号 ${tag} 查询失败`)
    }
  }

  if (!batchTags.value.length) {   // 全部无效
    form.value.varietyOld = ""
    form.value.sheepId = null
    return
  }

  // 把合法耳号重新拼回输入框，用半角空格分隔
  form.value.manageTags = batchTags.value.join(' ')

  // 原品种、sheepId、comment 取第一条的
  const firstSheep = batchSheep.value[0]
  form.value.varietyOld = firstSheep.varietyName || ""
  form.value.sheepId = firstSheep.id
}

// 删除单个批量耳号
function removeBatchTag(idx) {
  batchTags.value.splice(idx, 1)
  batchSheep.value.splice(idx, 1)
  // 实时回写输入框
  form.value.manageTags = batchTags.value.join(' ')
  // 更新原品种显示
  if (batchSheep.value.length > 0) {
    form.value.varietyOld = batchSheep.value[0].varietyName || ""
  } else {
    form.value.varietyOld = ""
  }
}

// 一键清空批量耳号
function clearBatchTags() {
  batchTags.value = []
  batchSheep.value = []
  form.value.manageTags = ''
  form.value.varietyOld = ''
}
onMounted(() => {
  loadVarietyOptions();
  getSheepfoldOptions();
  fetchTechnicalList();
  getList();
});
</script>
<style scoped>
.selected-ear-numbers {
  max-height: 150px;
  overflow-y: auto;
  padding: 8px;
  background: #f5f7fa;
  border-radius: 4px;
  border: 1px dashed #dcdfe6;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
}

.variety-old-list {
  min-height: 32px;
  /* 与el-input高度一致 */
  max-height: 150px;
  overflow-y: auto;
  padding: 4px 8px;
  background-color: #f5f7fa;
  border: 1px solid #dcdfe6;
  border-radius: 4px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  box-sizing: border-box;
    width: 100%;
}

.placeholder-text {
  display: block;
  min-height: 32px;
  line-height: 32px;
  padding: 0 8px;
  background-color: #f5f7fa;
  border: 1px solid #dcdfe6;
  border-radius: 4px;
  color: #c0c4cc;
  font-size: 14px;
  box-sizing: border-box;
    width: 100%;
}
</style>