<script setup>
import { ref, reactive, onMounted } from 'vue'
import { ElMessage, ElMessageBox } from 'element-plus'
import { warehouseApi } from '@/api/inventory.js'

// ─── State ────────────────────────────────────────────────────────────────────

const tableData = ref([])
const total = ref(0)
const loading = ref(false)
const dialogVisible = ref(false)
const dialogTitle = ref('新增仓库')
const submitLoading = ref(false)
const isEdit = ref(false)
const formRef = ref(null)

const searchForm = reactive({ name: '', status: '' })
const pagination = reactive({ page: 1, page_size: 20 })

// ─── Form ─────────────────────────────────────────────────────────────────────

const form = reactive({
  id: null,
  name: '',
  address: '',
  contact_person: '',
  contact_phone: '',
  status: 1,
  sort: 0
})

const formRules = {
  name: [{ required: true, message: '请输入仓库名称', trigger: 'blur' }]
}

// ─── Methods ──────────────────────────────────────────────────────────────────

async function fetchList() {
  loading.value = true
  try {
    const res = await warehouseApi.getList({ ...searchForm, ...pagination })
    tableData.value = res.data?.list || []
    total.value = res.data?.total || 0
  } catch {
    //
  } finally {
    loading.value = false
  }
}

function handleSearch() {
  pagination.page = 1
  fetchList()
}

function handleReset() {
  Object.assign(searchForm, { name: '', status: '' })
  handleSearch()
}

function handleAdd() {
  isEdit.value = false
  dialogTitle.value = '新增仓库'
  Object.assign(form, {
    id: null, name: '', address: '', contact_person: '',
    contact_phone: '', status: 1, sort: 0
  })
  dialogVisible.value = true
}

async function handleEdit(row) {
  isEdit.value = true
  dialogTitle.value = `编辑仓库 - ${row.name}`
  const res = await warehouseApi.getDetail(row.id)
  const warehouse = res.data
  Object.assign(form, {
    id: warehouse.id,
    name: warehouse.name,
    address: warehouse.address || '',
    contact_person: warehouse.contact_person || '',
    contact_phone: warehouse.contact_phone || '',
    status: warehouse.status,
    sort: warehouse.sort || 0
  })
  dialogVisible.value = true
}

async function handleSubmit() {
  if (!formRef.value) return
  await formRef.value.validate(async (valid) => {
    if (!valid) return
    submitLoading.value = true
    try {
      if (isEdit.value) {
        await warehouseApi.update(form.id, form)
        ElMessage.success('仓库信息更新成功')
      } else {
        await warehouseApi.create(form)
        ElMessage.success('仓库创建成功')
      }
      dialogVisible.value = false
      fetchList()
    } catch {
      //
    } finally {
      submitLoading.value = false
    }
  })
}

async function handleDelete(row) {
  await ElMessageBox.confirm(
    `确定删除仓库「${row.name}」吗？删除后该仓库下的数据将不可访问。`,
    '删除确认',
    {
      confirmButtonText: '确定删除',
      cancelButtonText: '取消',
      type: 'warning',
      confirmButtonClass: 'el-button--danger'
    }
  )
  await warehouseApi.delete(row.id)
  ElMessage.success('删除成功')
  fetchList()
}

async function handleStatusToggle(row) {
  const newStatus = row.status === 1 ? 0 : 1
  const label = newStatus === 1 ? '启用' : '停用'
  try {
    await warehouseApi.update(row.id, { ...row, status: newStatus })
    row.status = newStatus
    ElMessage.success(`仓库已${label}`)
  } catch {
    //
  }
}

function handlePageChange(val) {
  pagination.page = val
  fetchList()
}

function handleSizeChange(val) {
  pagination.page_size = val
  pagination.page = 1
  fetchList()
}

onMounted(fetchList)
</script>

<template>
  <div class="p-6 space-y-4">
    <div class="bg-white rounded-2xl border border-gray-100 shadow-sm p-4 flex items-center flex-wrap gap-3">
      <el-input
        v-model="searchForm.name"
        placeholder="搜索仓库名称"
        style="width: 220px"
        clearable
        @keydown.enter="handleSearch"
      >
        <template #prefix><el-icon><Search /></el-icon></template>
      </el-input>
      <el-select v-model="searchForm.status" placeholder="状态" clearable style="width: 120px">
        <el-option label="启用" :value="1" />
        <el-option label="停用" :value="0" />
      </el-select>
      <el-button type="primary" @click="handleSearch">查询</el-button>
      <el-button @click="handleReset">重置</el-button>
    </div>

    <div class="bg-white rounded-2xl border border-gray-100 shadow-sm">
      <div class="flex items-center justify-between px-5 py-4 border-b border-gray-50">
        <div class="flex items-center gap-3">
          <span class="font-medium text-gray-700">仓库列表</span>
        </div>
        <el-button type="primary" @click="handleAdd">新增仓库</el-button>
      </div>
      <div class="px-2">
        <el-table v-loading="loading" :data="tableData" style="width: 100%">
          <el-table-column prop="name" label="仓库名称" min-width="160" />
          <el-table-column prop="address" label="地址" min-width="200" show-overflow-tooltip />
          <el-table-column prop="contact_person" label="联系人" width="120" />
          <el-table-column prop="contact_phone" label="联系电话" width="140" />
          <el-table-column label="状态" width="90" align="center">
            <template #default="{ row }">
              <el-tag :type="row.status === 1 ? 'success' : 'danger'" size="small">
                {{ row.status === 1 ? '启用' : '停用' }}
              </el-tag>
            </template>
          </el-table-column>
          <el-table-column label="操作" width="180" fixed="right" align="center">
            <template #default="{ row }">
              <el-button size="small" type="primary" text @click="handleEdit(row)">编辑</el-button>
              <el-button
                size="small"
                :type="row.status === 1 ? 'warning' : 'success'"
                text
                @click="handleStatusToggle(row)"
              >
                {{ row.status === 1 ? '停用' : '启用' }}
              </el-button>
              <el-button size="small" type="danger" text @click="handleDelete(row)">删除</el-button>
            </template>
          </el-table-column>
        </el-table>
      </div>
      <div class="px-5 py-3 border-t border-gray-50">
        <el-pagination
          v-model:current-page="pagination.page"
          v-model:page-size="pagination.page_size"
          :total="total"
          :page-sizes="[10, 20, 50]"
          layout="total, sizes, prev, pager, next, jumper"
          background
          @current-change="handlePageChange"
          @size-change="handleSizeChange"
        />
      </div>
    </div>

    <el-dialog v-model="dialogVisible" :title="dialogTitle" width="600px" destroy-on-close>
      <el-form ref="formRef" :model="form" :rules="formRules" label-width="90px">
        <el-row :gutter="16">
          <el-col :span="12">
            <el-form-item label="仓库名称" prop="name">
              <el-input v-model="form.name" placeholder="请输入仓库名称" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="联系人" prop="contact_person">
              <el-input v-model="form.contact_person" placeholder="请输入联系人" />
            </el-form-item>
          </el-col>
          <el-col :span="24">
            <el-form-item label="地址" prop="address">
              <el-input v-model="form.address" placeholder="请输入仓库地址" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="联系电话" prop="contact_phone">
              <el-input v-model="form.contact_phone" placeholder="请输入联系电话" />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="状态" prop="status">
              <el-switch
                v-model="form.status"
                :active-value="1"
                :inactive-value="0"
                active-text="启用"
                inactive-text="停用"
              />
            </el-form-item>
          </el-col>
          <el-col :span="12">
            <el-form-item label="排序" prop="sort">
              <el-input-number v-model="form.sort" :min="0" :max="9999" style="width: 100%" />
            </el-form-item>
          </el-col>
        </el-row>
      </el-form>
      <template #footer>
        <el-button @click="dialogVisible = false">取消</el-button>
        <el-button type="primary" :loading="submitLoading" @click="handleSubmit">
          {{ isEdit ? '保存修改' : '确认创建' }}
        </el-button>
      </template>
    </el-dialog>
  </div>
</template>
