<script setup lang="ts">
import { computed, onMounted, reactive, ref } from 'vue'
import { ElMessage, ElMessageBox } from 'element-plus'
import { Plus, Refresh, Search } from '@element-plus/icons-vue'
import {
  cancelAdminPickup,
  completeAdminPickup,
  createAdminPickup,
  fetchAdminPickups,
  fetchAvailableListings,
  type AdminPickup,
  type AvailableListing,
} from '@/features/admin/api/adminPickup'
import { centToYuan, formatCentWithSymbol, yuanToCent } from '@/shared/utils/money'
import { formatDateTime } from '@/shared/utils/time'
import { pickupStatusLabel } from '@/shared/utils/statusLabels'
import { adminPath } from '@/shared/utils/adminPath'

const loading = ref(false)
const items = ref<AdminPickup[]>([])
const total = ref(0)
const filters = reactive({ page: 1, page_size: 20, keyword: '', status: '' })

const createDialogVisible = ref(false)
const completeDialogVisible = ref(false)
const activePickupId = ref(0)

const createForm = reactive({
  listing_id: null as number | null,
  platform: '',
  profit_amount: 0,
  remark: '',
})
const completeForm = reactive({ settle_amount: 0, profit_amount: 0, complete_remark: '' })

const listingOptions = ref<AvailableListing[]>([])
const listingLoading = ref(false)
const selectedListing = computed(
  () => listingOptions.value.find(item => item.id === createForm.listing_id) || null
)
const selectedPriceSnapshot = computed(() => {
  const item = selectedListing.value
  if (!item) return null
  const totalCent = normalizeCent(item.owner_total_price_cent || item.owner_price_cent)
  let pureCent = normalizeCent(item.owner_pure_price_cent)
  let extraCent = normalizeCent(item.owner_extra_item_price_cent)
  if (pureCent <= 0 && extraCent <= 0) {
    pureCent = totalCent
  } else if (pureCent <= 0) {
    pureCent = Math.max(totalCent - extraCent, 0)
  } else if (extraCent <= 0) {
    extraCent = Math.max(totalCent - pureCent, 0)
  }
  return { pureCent, extraCent, totalCent }
})

onMounted(loadList)

async function loadList() {
  loading.value = true
  try {
    const result = await fetchAdminPickups(filters)
    items.value = result.items
    total.value = result.total
  } finally {
    loading.value = false
  }
}

function handleSearch() {
  filters.page = 1
  loadList()
}
function handlePageChange(p: number) {
  filters.page = p
  loadList()
}
function handleSizeChange(s: number) {
  filters.page_size = s
  filters.page = 1
  loadList()
}

function openCreateDialog() {
  createForm.listing_id = null
  createForm.platform = ''
  createForm.profit_amount = 0
  createForm.remark = ''
  listingOptions.value = []
  createDialogVisible.value = true
}

async function searchListings(keyword: string) {
  if (!keyword) {
    listingOptions.value = []
    return
  }
  listingLoading.value = true
  try {
    const result = await fetchAvailableListings(keyword)
    listingOptions.value = result.items
  } finally {
    listingLoading.value = false
  }
}

async function handleCreate() {
  if (!createForm.listing_id) {
    ElMessage.warning('请选择要提号的账号')
    return
  }
  if (createForm.profit_amount < 0) {
    ElMessage.warning('线下利润不能为负数')
    return
  }
  loading.value = true
  try {
    await createAdminPickup({
      listing_id: createForm.listing_id,
      platform: createForm.platform,
      profit_amount_cent: yuanToCent(createForm.profit_amount),
      remark: createForm.remark,
    })
    ElMessage.success('提号订单已创建')
    createDialogVisible.value = false
    loadList()
  } catch (e: unknown) {
    ElMessage.error(errorMessage(e) || '创建失败')
  } finally {
    loading.value = false
  }
}

function openCompleteDialog(row: AdminPickup) {
  activePickupId.value = row.id
  completeForm.settle_amount = 0
  completeForm.profit_amount = centToYuan(row.profit_amount_cent)
  completeForm.complete_remark = ''
  completeDialogVisible.value = true
}

async function handleComplete() {
  if (completeForm.settle_amount <= 0) {
    ElMessage.warning('请输入结算金额')
    return
  }
  if (completeForm.profit_amount < 0) {
    ElMessage.warning('线下利润不能为负数')
    return
  }
  loading.value = true
  try {
    await completeAdminPickup(activePickupId.value, {
      settle_amount_cent: yuanToCent(completeForm.settle_amount),
      profit_amount_cent: yuanToCent(completeForm.profit_amount),
      complete_remark: completeForm.complete_remark,
    })
    ElMessage.success('提号已完成，已给卖家结算')
    completeDialogVisible.value = false
    loadList()
  } catch (e: unknown) {
    ElMessage.error(errorMessage(e) || '完成失败')
  } finally {
    loading.value = false
  }
}

async function handleCancel(id: number) {
  try {
    const { value } = await ElMessageBox.prompt('请输入取消原因', '取消提号', {
      confirmButtonText: '确认取消',
      cancelButtonText: '返回',
      inputPattern: /.+/,
      inputErrorMessage: '取消原因不能为空',
    })
    loading.value = true
    try {
      await cancelAdminPickup(id, value)
      ElMessage.success('提号已取消')
      loadList()
    } catch (e: unknown) {
      ElMessage.error(errorMessage(e) || '取消失败')
    } finally {
      loading.value = false
    }
  } catch {
    /* 用户放弃 */
  }
}

function statusType(status: string) {
  if (status === 'picking_up') return 'warning'
  if (status === 'completed') return 'success'
  if (status === 'cancelled') return 'info'
  return ''
}

function errorMessage(e: unknown) {
  if (typeof e === 'object' && e !== null && 'message' in e) {
    return String((e as { message?: unknown }).message)
  }
  return ''
}

function ratioText(value: number) {
  const ratio = Number(value || 0)
  if (ratio <= 0) return '-'
  const rounded = Math.round(ratio * 100) / 100
  return `1:${Number.isInteger(rounded) ? rounded : rounded.toFixed(2)}`
}

function normalizeCent(value: number | undefined | null) {
  const cent = Number(value || 0)
  if (!Number.isFinite(cent)) return 0
  return Math.max(Math.round(cent), 0)
}

function listingOwnerTotalCent(item: AvailableListing) {
  return normalizeCent(item.owner_total_price_cent || item.owner_price_cent)
}
</script>

<template>
  <section class="page">
    <div class="page-header-row">
      <div class="page-header">
        <p class="eyebrow">Admin Pickup</p>
        <h1>线下提号</h1>
        <p>管理员线下提号，跳过支付与交接流程，完成后给卖家结算余额。</p>
      </div>
      <div class="toolbar-actions">
        <el-button type="primary" :icon="Plus" @click="openCreateDialog">创建提号</el-button>
      </div>
    </div>

    <div class="filter-bar">
      <el-input
        v-model="filters.keyword"
        placeholder="提号编号 / 上架编号 / 账号标题"
        clearable
        style="width: 240px"
        @keyup.enter="handleSearch"
      />
      <el-select v-model="filters.status" placeholder="状态" clearable style="width: 130px">
        <el-option label="提号中" value="picking_up" />
        <el-option label="已完成" value="completed" />
        <el-option label="已取消" value="cancelled" />
      </el-select>
      <el-button type="primary" :icon="Search" @click="handleSearch">查询</el-button>
      <el-button :icon="Refresh" @click="loadList">刷新</el-button>
    </div>

    <el-table v-loading="loading" :data="items" class="table-panel">
      <el-table-column prop="pickup_no" label="提号编号" width="190" />
      <el-table-column prop="account_title" label="账号" min-width="180" />
      <el-table-column label="区服/平台" width="150">
        <template #default="{ row }"
          >{{ row.server_region || '-' }} / {{ row.login_platform || '-' }}</template
        >
      </el-table-column>
      <el-table-column label="上架编号" width="120">
        <template #default="{ row }">{{ row.listing_no }}</template>
      </el-table-column>
      <el-table-column label="卖家" width="140">
        <template #default="{ row }">{{ row.owner_phone }}</template>
      </el-table-column>
      <el-table-column label="交易渠道" width="110">
        <template #default="{ row }">{{ row.platform || '-' }}</template>
      </el-table-column>
      <el-table-column label="结算金额" width="130">
        <template #default="{ row }">
          <span v-if="row.status === 'completed'">{{
            formatCentWithSymbol(row.settle_amount_cent)
          }}</span>
          <span v-else class="text-muted">待结算</span>
        </template>
      </el-table-column>
      <el-table-column label="状态" width="100">
        <template #default="{ row }">
          <el-tag :type="statusType(row.status)" effect="light">
            {{ pickupStatusLabel(row.status) }}
          </el-tag>
        </template>
      </el-table-column>
      <el-table-column label="创建时间" width="170">
        <template #default="{ row }">{{ formatDateTime(row.created_at) }}</template>
      </el-table-column>
      <el-table-column label="操作" width="220" fixed="right">
        <template #default="{ row }">
          <div class="action-buttons">
            <RouterLink :to="adminPath(`pickup/${row.id}`)">
              <el-button size="small">详情</el-button>
            </RouterLink>
            <el-button
              v-if="row.status === 'picking_up'"
              type="primary"
              size="small"
              @click="openCompleteDialog(row)"
            >
              完成结算
            </el-button>
            <el-button
              v-if="row.status === 'picking_up'"
              type="danger"
              size="small"
              plain
              @click="handleCancel(row.id)"
            >
              取消
            </el-button>
          </div>
        </template>
      </el-table-column>
    </el-table>

    <div class="pagination-wrapper">
      <el-pagination
        :current-page="filters.page"
        :page-size="filters.page_size"
        :page-sizes="[20, 50, 100]"
        :total="total"
        layout="total, sizes, prev, pager, next, jumper"
        @size-change="handleSizeChange"
        @current-change="handlePageChange"
      />
    </div>

    <!-- 创建提号 -->
    <el-dialog v-model="createDialogVisible" title="创建线下提号" width="520px">
      <el-form label-width="110px">
        <el-form-item label="选择账号" required>
          <el-select
            v-model="createForm.listing_id"
            filterable
            remote
            clearable
            :remote-method="searchListings"
            :loading="listingLoading"
            placeholder="输入上架编号或账号标题搜索"
            style="width: 100%"
          >
            <el-option
              v-for="item in listingOptions"
              :key="item.id"
              :label="`${item.listing_no} · ${item.account_title} · ${formatCentWithSymbol(listingOwnerTotalCent(item))} / ${formatCentWithSymbol(item.listing_price_cent)}`"
              :value="item.id"
            />
          </el-select>
          <div class="form-hint">仅显示已发布、已审核、未在交易中的账号</div>
        </el-form-item>
        <el-form-item v-if="selectedListing && selectedPriceSnapshot" label="价格快照">
          <div class="price-snapshot">
            <span>纯比价格 {{ formatCentWithSymbol(selectedPriceSnapshot.pureCent) }}</span>
            <span>额外物品价格 {{ formatCentWithSymbol(selectedPriceSnapshot.extraCent) }}</span>
            <span>号主总价 {{ formatCentWithSymbol(selectedPriceSnapshot.totalCent) }}</span>
            <span>网站售价 {{ formatCentWithSymbol(selectedListing.listing_price_cent) }}</span>
            <span>网站加价 {{ formatCentWithSymbol(selectedListing.website_profit_cent) }}</span>
            <span>回收 {{ ratioText(selectedListing.seller_ratio) }}</span>
            <span>售卖 {{ ratioText(selectedListing.buyer_ratio) }}</span>
          </div>
        </el-form-item>
        <el-form-item label="交易渠道">
          <el-input v-model="createForm.platform" placeholder="如 微信 / QQ / 闲鱼" />
        </el-form-item>
        <el-form-item label="线下利润(元)">
          <el-input-number
            v-model="createForm.profit_amount"
            :min="0"
            :step="1"
            :precision="2"
            controls-position="right"
            style="width: 100%"
          />
          <div class="form-hint">电商平台实际成交利润，财务统计按该金额汇总</div>
        </el-form-item>
        <el-form-item label="备注">
          <el-input
            v-model="createForm.remark"
            type="textarea"
            :rows="3"
            placeholder="线下交易说明（可选）"
          />
        </el-form-item>
        <el-alert type="info" :closable="false">
          创建后账号将被锁定为"提号中"，卖家收到通知；不会立即结算，需手动完成结算。
        </el-alert>
      </el-form>
      <template #footer>
        <el-button @click="createDialogVisible = false">取消</el-button>
        <el-button type="primary" :loading="loading" @click="handleCreate">创建提号</el-button>
      </template>
    </el-dialog>

    <!-- 完成结算 -->
    <el-dialog v-model="completeDialogVisible" title="完成提号结算" width="480px">
      <el-form label-width="110px">
        <el-form-item label="结算金额(元)" required>
          <el-input-number
            v-model="completeForm.settle_amount"
            :min="0.01"
            :step="1"
            :precision="2"
            controls-position="right"
            style="width: 100%"
          />
          <div class="form-hint">给卖家钱包增加的可用余额</div>
        </el-form-item>
        <el-form-item label="线下利润(元)">
          <el-input-number
            v-model="completeForm.profit_amount"
            :min="0"
            :step="1"
            :precision="2"
            controls-position="right"
            style="width: 100%"
          />
          <div class="form-hint">可在结算时修正为最终利润，财务统计使用该值</div>
        </el-form-item>
        <el-form-item label="完成备注">
          <el-input
            v-model="completeForm.complete_remark"
            type="textarea"
            :rows="3"
            placeholder="结算说明（可选）"
          />
        </el-form-item>
        <el-alert type="warning" :closable="false">
          完成后提号记录置为"已完成"，卖家钱包立即入账，账号下架不可再上架。操作不可撤销。
        </el-alert>
      </el-form>
      <template #footer>
        <el-button @click="completeDialogVisible = false">取消</el-button>
        <el-button type="primary" :loading="loading" @click="handleComplete">确认结算</el-button>
      </template>
    </el-dialog>
  </section>
</template>

<style scoped>
.form-hint {
  margin-top: 4px;
  font-size: 12px;
  color: #64748b;
}
.text-muted {
  color: #94a3b8;
}
.price-snapshot {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  color: #475569;
  font-size: 13px;
  line-height: 1.6;
}
.action-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
</style>
