import assert from 'node:assert/strict'
import test from 'node:test'

import {
  CSV_BOM,
  buildProductRuleExportRows,
  buildProductRulesCsv,
  buildProductRulesExportFilename,
  describeRuleMapping,
  downloadProductRulesCsv,
  downloadTextFile,
  formatRuleCollectFields,
  resolveRuleCategoryPath,
} from '../src/utils/product-rules-export.ts'

function createRule(overrides: Record<string, unknown> = {}) {
  return {
    ruleId: 1,
    ruleKey: 'android-暗潮-1钻',
    provider: '安卓',
    platform: '快手',
    shopId: '',
    skuCode: 'SKU-001',
    productName: '暗潮1钻',
    matchType: 'contains',
    match: {
      sellerId: '',
      itemId: '',
      relItemId: '',
      skuId: '',
      relSkuId: '',
      itemTitle: '',
      skuNick: '',
      itemTitleMatchType: 'contains',
      skuNickMatchType: 'contains',
    },
    categoryId: 20,
    categoryName: '暗潮',
    enabled: true,
    autoCreate: true,
    rewardAmount: 12000,
    unitPriceFen: 0,
    sharing: { enabled: false, totalQuantity: 1, unitReward: 0, autoFromOrder: false },
    requirement: { fields: [] },
    timeoutMinutes: 60,
    timeoutPolicy: 'reopen',
    acceptanceMode: 'standard',
    sortOrder: 1,
    createdAt: '2026-02-21T10:00:00.000Z',
    updatedAt: '2026-02-21T11:00:00.000Z',
    ...overrides,
  } as never
}

test('接单模板导出：分类展示成「一级 / 二级」', () => {
  const categoryMap = new Map([
    [10, { categoryId: 10, name: '三角洲行动', parentId: null, sortOrder: 1 }],
    [20, { categoryId: 20, name: '暗潮', parentId: 10, sortOrder: 1 }],
  ]) as never
  assert.equal(resolveRuleCategoryPath(createRule(), categoryMap), '三角洲行动 / 暗潮')
})

test('接单模板导出：分类缺失时回退未分类，不再显示空列', () => {
  assert.equal(
    resolveRuleCategoryPath(createRule({ categoryId: null, categoryName: '' })),
    '未分类',
  )
})

test('接单模板导出：金额按元输出，随订单计算的模板明确标注', () => {
  const [fixed] = buildProductRuleExportRows(
    [createRule({ unitPriceFen: 5000 })],
    new Map(),
    new Map(),
  )
  assert.equal(fixed.rewardAmountYuan, '120.00')
  assert.equal(fixed.unitPriceYuan, '50.00')

  const [autoFromOrder] = buildProductRuleExportRows(
    [
      createRule({
        rewardAmount: 0,
        sharing: { enabled: true, autoFromOrder: true, totalQuantity: 5, unitReward: 2000 },
      }),
    ],
    new Map(),
    new Map(),
  )
  assert.equal(autoFromOrder.rewardAmountYuan, '随订单计算')
  assert.equal(autoFromOrder.sharingEnabled, true)
  assert.equal(autoFromOrder.sharingTotalQuantity, 5)
  assert.equal(autoFromOrder.sharingUnitRewardYuan, '20.00')
})

test('接单模板导出：商品绑定汇总带店铺、商品与启用状态', () => {
  const row = {
    mappingId: 1,
    ruleId: 1,
    ruleKey: 'android-暗潮-1钻',
    productName: '暗潮1钻',
    sellerIds: ['11300001'],
    sellerId: '11300001',
    relItemId: '',
    itemTitle: '暗潮 1钻 代练',
    relSkuId: '',
    skuNick: '',
    skuMatchMode: 'fuzzy',
    mappingType: 'product_default',
    enabled: true,
    createdAt: '',
    updatedAt: '',
  } as never
  assert.equal(describeRuleMapping(row), '商品默认·店铺[11300001]·商品[暗潮 1钻 代练]·启用')
})

test('接单模板导出：CSV 转义逗号、引号与换行', () => {
  const rule = createRule({
    productName: '暗潮,1钻 "特惠"',
    requirement: { fields: [{ key: 'gameId', label: '游戏\n编号', options: [] }] },
  })
  const rows = buildProductRuleExportRows([rule], new Map(), new Map())
  const csv = buildProductRulesCsv(rows)

  assert.ok(csv.startsWith('模板名称,模板标识,分类,'))
  assert.ok(csv.includes('"暗潮,1钻 ""特惠"""'))
  // 换行被引号包裹后仍是同一行记录
  assert.equal(csv.split('\r\n').length, 2)
})

test('接单模板导出：资料字段沿用 key:名称#选项 口径', () => {
  assert.equal(
    formatRuleCollectFields([
      { key: 'gameId', label: '游戏编号', options: [] },
      { key: 'system', label: '系统', options: ['安卓', '苹果'] },
    ] as never),
    'gameId:游戏编号；system:系统#安卓,苹果',
  )
})

test('接单模板导出：文件名带时间戳且为 .csv', () => {
  const filename = buildProductRulesExportFilename(new Date(2026, 1, 21, 15, 30, 5))
  assert.equal(filename, '接单模板_20260221_1530.csv')
  assert.equal(CSV_BOM, '\uFEFF')
})

test('接单模板导出：空列表只输出表头', () => {
  const csv = buildProductRulesCsv([])
  assert.equal(csv.split('\r\n').length, 1)
  assert.ok(csv.includes('绑定明细'))
})

test('接单模板导出：非浏览器环境不抛错，返回 false 由调用方提示', () => {
  assert.equal(downloadTextFile('x.csv', 'a,b'), false)
  assert.equal(downloadProductRulesCsv(buildProductRuleExportRows([], new Map(), new Map())), false)
})