fix(douyin-mashida): 平台会改写券码 —— 核销改用平台侧券码 + 失败自愈
真实联调踩到的坑(已用真单复现并定位): `coupons.syncV2` 返回 `10000 成功` **并不代表平台沿用了我们提交的 cert_no**。 实测 3 笔订单里有 2 笔,平台把我们的 DYC 券码换成了它自己生成的券码。 我们却一直拿**自己的**券码去 `coupons.verifyV3`,平台回 `10017 卡券核销失败[isv.business-failed:010021|核销码与订单不匹配]`; 更坑的是这个错误平台要 **~10.5 秒**才返回,正好越过当时的 10 秒超时, 前端只看到 `douyin_mashida_gateway_timeout`,完全看不出真实原因。 修复: - 新增 `coupons.list` 出网封装;同步成功后按 order_id 回查平台侧 `cert_no`/`cert_id` 并落库(迁移 095 新增 platform_cert_no / platform_cert_id / platform_status / platform_synced_at) - 核销时用 `resolveRedeemVerifyCertNo()`:**平台侧券码优先**,取不到才退回我方券码 - 核销失败后自愈 `tryRecoverVerify()`: ① 回查平台,若平台侧已核销 → 按对账结果标记本地已核销(修复"平台已核销、我们报失败"的漂移) ② 若是券码被平台改过 → 用平台券码**重试一次** - 回查不到该订单的券 → 标记 sync 失败并告警(暴露"syncV2 成功但平台无券"的幽灵券) - 默认出网超时 10s → 20s(平台业务错误要 ~10.5s 才返回,10s 会把业务错误伪装成超时) 实测验证:对一笔「平台侧已核销、本地仍是 synced」的订单调确认兑换, 10.7s 后返回 `status=verified`,platform_cert_no 成功回填为平台券码、 platform_status=3,并打出「对账发现平台侧已核销,按平台状态标记本地已核销」告警。
This commit is contained in:
@@ -0,0 +1,28 @@
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-- 095_redeem_certificates_platform_cert.sql —— 记录**平台侧实际券码**。
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--
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-- 背景(真实联调发现):`coupons.syncV2` **不保证平台沿用我们提交的 `cert_no`**。
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-- 实测 3 笔订单里有 2 笔,平台把我们的券码(DYC…)换成了它自己生成的券码;
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-- 而我们一直拿**自己的**券码去调 `coupons.verifyV3`,平台返回
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-- `10017 卡券核销失败[isv.business-failed:010021|核销码与订单不匹配]`。
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-- 更坑的是:这个错误平台要 **~10.5 秒**才返回,正好越过我们当时 10 秒的出网超时,
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-- 于是前端只看到 `douyin_mashida_gateway_timeout`,完全看不出真实原因。
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--
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-- 处理:`syncV2` 成功后立即用 `coupons.list`(按 order_id 查)取回平台侧的
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-- `cert_no` / `cert_id` 存到本表,核销时**优先用平台侧券码**。
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--
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-- 量级预期:同 094,一单一券;这两列只读不索引(检索都走 cert_no / order_id)。
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ALTER TABLE redeem_certificates
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-- 平台侧实际券码;为空表示"尚未从平台取回",此时退回用我方 cert_no
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ADD COLUMN IF NOT EXISTS platform_cert_no TEXT NOT NULL DEFAULT '',
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-- 平台侧卡券ID(coupons.list 的 cert_id),用于排查对不上号的情况
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ADD COLUMN IF NOT EXISTS platform_cert_id TEXT NOT NULL DEFAULT '',
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-- 平台侧状态快照(coupons.list 的 status:1 未激活 / 2 未使用 / 3 已使用 / 4 已废弃 / 5 已过期 / 6 已完成)
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ADD COLUMN IF NOT EXISTS platform_status INTEGER,
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-- 最近一次成功从平台取回券码的时间
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ADD COLUMN IF NOT EXISTS platform_synced_at TIMESTAMPTZ;
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COMMENT ON COLUMN redeem_certificates.platform_cert_no IS
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'平台侧实际券码(syncV2 后由 coupons.list 取回;平台可能不用我们提交的 cert_no),核销优先用它';
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COMMENT ON COLUMN redeem_certificates.platform_cert_id IS '平台侧卡券ID(coupons.list 的 cert_id),排查用';
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COMMENT ON COLUMN redeem_certificates.platform_status IS '平台侧券状态快照:1未激活/2未使用/3已使用/4已废弃/5已过期/6已完成';
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@@ -29,6 +29,13 @@ export type RedeemCertificateRow = {
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status: RedeemCertificateStatus
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sync_status: RedeemCertificateSyncStatus
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sync_error: string
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/** 平台侧实际券码(syncV2 后由 coupons.list 取回;平台可能不用我们提交的 cert_no) */
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platform_cert_no: string
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/** 平台侧卡券ID */
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platform_cert_id: string
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/** 平台侧券状态快照:1未激活/2未使用/3已使用/4已废弃/5已过期/6已完成 */
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platform_status: number | null
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platform_synced_at: string | null
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grant_time: string | null
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synced_at: string | null
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verified_at: string | null
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@@ -37,6 +44,17 @@ export type RedeemCertificateRow = {
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updated_at: string
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}
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/**
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* 核销时该用哪个券码:**平台侧券码优先**,取不到才退回我方券码。
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* 抽成纯函数便于单测(这是真实踩坑点,不能只用 cert_no)。
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*/
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export function resolveRedeemVerifyCertNo(row: {
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cert_no: string
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platform_cert_no?: string | null | undefined
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}): string {
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return String(row.platform_cert_no || '').trim() || String(row.cert_no || '').trim()
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}
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export function generateRedeemCertificateCode(
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randomBytes: (size: number) => Uint8Array = crypto.randomBytes,
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): string {
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@@ -175,6 +193,40 @@ export async function markRedeemCertificateSyncFailed(input: {
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return result.rows[0] || null
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}
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/**
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* 写回平台侧券码。
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*
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* ⚠️ 真实联调发现:`coupons.syncV2` 不保证平台沿用我们的 `cert_no`(3 笔里 2 笔被改名),
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* 所以同步成功后必须用 `coupons.list` 取回平台侧真实券码,核销时优先用它,
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* 否则会拿到 `10017 核销码与订单不匹配`(且该错误要 ~10.5s 才返回,会伪装成超时)。
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*/
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export async function markRedeemCertificatePlatformCert(input: {
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id: number | string
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platformCertNo: string
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platformCertId?: string | undefined
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platformStatus?: number | null | undefined
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}): Promise<RedeemCertificateRow | null> {
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const result = await query<RedeemCertificateRow>(
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`
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UPDATE redeem_certificates
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SET platform_cert_no = $2,
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platform_cert_id = COALESCE(NULLIF($3, ''), platform_cert_id),
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platform_status = $4,
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platform_synced_at = NOW(),
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updated_at = NOW()
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WHERE id = $1
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RETURNING *
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`,
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[
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Number(input.id),
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String(input.platformCertNo || '').trim(),
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String(input.platformCertId || '').trim(),
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input.platformStatus === undefined ? null : input.platformStatus,
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],
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)
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return result.rows[0] || null
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}
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/** 核销上报成功:`verified`(已核销的重复调用不再改状态,保持幂等)。 */
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export async function markRedeemCertificateVerified(
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id: number | string,
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@@ -55,6 +55,48 @@ export async function syncDouyinMashidaCoupons(
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})
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}
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/**
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* 券码查询(`coupons.list`,基础功能)——**同步后取回平台侧真实券码的权威手段**。
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*
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* 实测发现 `coupons.syncV2` 不保证平台沿用我们提交的 `cert_no`(3 笔里 2 笔被平台改名),
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* 拿我们自己的券码去核销会得到 `10017 核销码与订单不匹配`(且该错误要 ~10.5s 才返回)。
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* 所以同步成功后必须用它按 `order_id` 查回平台的 `cert_no` / `cert_id`。
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*/
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export async function fetchDouyinMashidaCoupons(
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input: {
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orderId?: string | undefined
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certNo?: string | undefined
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certType?: number | undefined
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} & DouyinMashidaCallOptions,
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): Promise<Array<Record<string, unknown>>> {
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const params: Record<string, string> = {
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// 0 = 三方卡券(我们这种自备券码的就是三方卡券);1 会查不到任何券
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cert_type: String(input.certType === undefined ? 0 : input.certType),
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}
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const orderId = String(input.orderId || '').trim()
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const certNo = String(input.certNo || '').trim()
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if (orderId) {
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params.order_id = orderId
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}
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if (certNo) {
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params.cert_no = certNo
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}
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const response = await douyinMashidaGatewayRequest({
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method: 'coupons.list',
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params,
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config: input.config,
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timeoutMs: input.timeoutMs,
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})
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return Array.isArray(response.data)
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? response.data.filter(
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(row): row is Record<string, unknown> =>
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Object.prototype.toString.call(row) === '[object Object]',
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)
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: []
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}
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/** 卡券核销(高级功能):只认券码,所以券码必须能反查本地订单。 */
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export async function verifyDouyinMashidaCoupon(
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input: { certNo: string } & DouyinMashidaCallOptions,
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@@ -110,7 +110,9 @@ export function normalizeDouyinMashidaSourceConfig(rawValue: unknown): DouyinMas
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messageType: normalizeMessageType(source.messageType),
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afterVerifyLink: String(source.afterVerifyLink || '').trim(),
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afterVerifyMessage: String(source.afterVerifyMessage || '').trim(),
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timeoutMs: normalizePositiveInteger(source.timeoutMs, 10000),
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// ⚠️ 默认 20s 而不是 10s:平台在「券码与订单不匹配」这类业务错误上要 ~10.5s 才返回,
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// 10s 会让所有业务错误都伪装成"网关超时",排查时完全看不出真实原因(实测踩过)。
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timeoutMs: normalizePositiveInteger(source.timeoutMs, 20000),
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handledTopics: normalizeHandledTopics(source.handledTopics),
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}
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}
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@@ -125,7 +127,7 @@ export function createDefaultDouyinMashidaSourceConfig(): DouyinMashidaSourceCon
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messageType: 2,
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afterVerifyLink: '',
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afterVerifyMessage: DEFAULT_AFTER_VERIFY_MESSAGE,
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timeoutMs: 10000,
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timeoutMs: 20000,
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handledTopics: [...DOUYIN_MASHIDA_DEFAULT_HANDLED_TOPICS],
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}
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}
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@@ -4,9 +4,11 @@ import {
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insertRedeemCertificate,
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invalidateRedeemCertificatesByLocalOrder,
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listRedeemCertificatesByLocalOrder,
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markRedeemCertificatePlatformCert,
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markRedeemCertificateSynced,
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markRedeemCertificateSyncFailed,
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markRedeemCertificateVerified,
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resolveRedeemVerifyCertNo,
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type RedeemCertificateRow,
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} from '../../repositories/redeem-certificate-repo.js'
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import type { OrderItemRow, OrderRow } from '../../types/repository/rows.js'
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@@ -16,6 +18,7 @@ import { logIntegration } from '../../utils/logger.js'
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import { nowIso } from '../../utils/time.js'
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import {
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cancelDouyinMashidaCouponVerify,
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fetchDouyinMashidaCoupons,
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sendDouyinMashidaOrderMessage,
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syncDouyinMashidaCoupons,
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verifyDouyinMashidaCoupon,
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@@ -150,7 +153,8 @@ async function syncCertificateToPlatform(
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orderId: certificate.order_id,
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})
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return synced || certificate
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// syncV2 返回成功 ≠ 平台一定用了我们的券码,必须回查平台侧真实券码
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return (await capturePlatformCert(synced || certificate, config)) || synced || certificate
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} catch (error) {
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const message = error instanceof Error ? error.message : '卡券同步失败'
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await markRedeemCertificateSyncFailed({ id: certificate.id, error: message })
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@@ -193,7 +197,18 @@ export async function verifyCertificate(input: {
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})
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}
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await verifyDouyinMashidaCoupon({ certNo, config })
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// ⚠️ 必须用**平台侧券码**:syncV2 可能把我们的券码改名,用旧券码会得到
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// `10017 核销码与订单不匹配`(且平台要 ~10.5s 才返回,看起来像超时)。
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const attemptedCertNo = resolveRedeemVerifyCertNo(found)
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try {
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await verifyDouyinMashidaCoupon({ certNo: attemptedCertNo, config })
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} catch (error) {
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const recovered = await tryRecoverVerify(found, attemptedCertNo, config)
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if (!recovered) {
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throw error
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}
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}
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const verified = await markRedeemCertificateVerified(found.id)
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@@ -301,6 +316,200 @@ export async function invalidateCertificatesForLocalOrder(input: {
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return 0
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}
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/**
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* 核销失败后的自愈:回查平台侧券码,判断「其实已核销」或「换正确的券码重试一次」。
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*
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* 覆盖两种真实情况:
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* 1. 首次调用超时/网络抖动,但平台其实已经核销成功 → 按对账结果标记本地已核销,
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* 避免"平台已核销、我们报失败"的状态漂移(用户会重复点击)。
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* 2. 我们存的是旧券码(平台改过名,历史订单没有 platform_cert_no)→ 用平台券码重试一次。
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*
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* 返回 true 表示可以继续走「标记已核销」;返回 false/null 表示无法自愈,按原错误抛出。
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*/
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async function tryRecoverVerify(
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certificate: RedeemCertificateRow,
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attemptedCertNo: string,
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config: DouyinMashidaSourceConfig,
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): Promise<boolean> {
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let rows: Array<Record<string, unknown>>
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try {
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rows = await fetchDouyinMashidaCoupons({ orderId: certificate.order_id, config })
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} catch (error) {
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logIntegration(
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'[douyin-mashida/certificate]',
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'核销失败后对账查询也失败,按原错误返回',
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{
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certNo: certificate.cert_no,
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orderId: certificate.order_id,
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error: error instanceof Error ? error.message : String(error),
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},
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{ level: 'warn' },
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)
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return false
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}
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const picked = pickPlatformCouponRow(rows, certificate.cert_no)
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if (!picked) {
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return false
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}
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const platformCertNo = String(picked.cert_no || '').trim()
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if (platformCertNo && platformCertNo !== certificate.platform_cert_no) {
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await markRedeemCertificatePlatformCert({
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id: certificate.id,
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platformCertNo,
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platformCertId: String(picked.cert_id || '').trim(),
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platformStatus: Number.isFinite(Number(picked.status)) ? Number(picked.status) : null,
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})
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}
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if (isPlatformCouponVerified(picked)) {
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logIntegration(
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'[douyin-mashida/certificate]',
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'对账发现平台侧已核销,按平台状态标记本地已核销',
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{
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certNo: certificate.cert_no,
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platformCertNo,
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attemptedCertNo,
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platformStatus: picked.status,
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verifyNum: picked.verify_num,
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},
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{ level: 'warn' },
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)
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return true
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}
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if (platformCertNo && platformCertNo !== attemptedCertNo) {
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try {
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await verifyDouyinMashidaCoupon({ certNo: platformCertNo, config })
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logIntegration(
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'[douyin-mashida/certificate]',
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'首次核销用了错误的券码,已改用平台侧券码重试成功',
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{ certNo: certificate.cert_no, platformCertNo, attemptedCertNo },
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{ level: 'warn' },
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)
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return true
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} catch (retryError) {
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logIntegration(
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'[douyin-mashida/certificate]',
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'用平台侧券码重试核销仍失败',
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{
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certNo: certificate.cert_no,
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platformCertNo,
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error: retryError instanceof Error ? retryError.message : String(retryError),
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},
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{ level: 'error' },
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)
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return false
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}
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}
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return false
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}
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/**
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* 同步成功后回查平台侧真实券码并落库。
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*
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* 真实联调发现:`coupons.syncV2` 返回 `10000` 时平台**可能并没有沿用我们提交的 cert_no**
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* (3 笔里 2 笔被平台改名)。若此时仍拿我方券码去核销,平台会返回
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* `10017 核销码与订单不匹配`,而且**要 ~10.5 秒才返回**,看起来就像网关超时。
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*/
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async function capturePlatformCert(
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certificate: RedeemCertificateRow,
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config: DouyinMashidaSourceConfig,
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): Promise<RedeemCertificateRow | null> {
|
||||
let rows: Array<Record<string, unknown>>
|
||||
try {
|
||||
rows = await fetchDouyinMashidaCoupons({ orderId: certificate.order_id, config })
|
||||
} catch (error) {
|
||||
// 回查失败不改券状态(同步本身是成功的),只留一条告警便于排查
|
||||
logIntegration(
|
||||
'[douyin-mashida/certificate]',
|
||||
'回查平台侧券码失败(同步状态保持成功)',
|
||||
{
|
||||
certNo: certificate.cert_no,
|
||||
orderId: certificate.order_id,
|
||||
error: error instanceof Error ? error.message : String(error),
|
||||
},
|
||||
{ level: 'warn' },
|
||||
)
|
||||
return null
|
||||
}
|
||||
|
||||
const picked = pickPlatformCouponRow(rows, certificate.cert_no)
|
||||
|
||||
if (!picked) {
|
||||
const message = '平台未返回该订单的卡券(syncV2 报成功但平台侧查不到)'
|
||||
await markRedeemCertificateSyncFailed({ id: certificate.id, error: message })
|
||||
logIntegration(
|
||||
'[douyin-mashida/certificate]',
|
||||
message,
|
||||
{ certNo: certificate.cert_no, orderId: certificate.order_id, platformRowCount: rows.length },
|
||||
{ level: 'warn' },
|
||||
)
|
||||
return null
|
||||
}
|
||||
|
||||
const platformCertNo = String(picked.cert_no || '').trim()
|
||||
const updated = await markRedeemCertificatePlatformCert({
|
||||
id: certificate.id,
|
||||
platformCertNo,
|
||||
platformCertId: String(picked.cert_id || '').trim(),
|
||||
platformStatus: Number.isFinite(Number(picked.status)) ? Number(picked.status) : null,
|
||||
})
|
||||
|
||||
logIntegration('[douyin-mashida/certificate]', '已取回平台侧券码', {
|
||||
certNo: certificate.cert_no,
|
||||
platformCertNo,
|
||||
renamed: platformCertNo !== certificate.cert_no,
|
||||
platformStatus: picked.status,
|
||||
})
|
||||
|
||||
return updated
|
||||
}
|
||||
|
||||
/**
|
||||
* 从 `coupons.list` 结果里挑出属于本次同步的那张券。
|
||||
* 优先券码完全一致的;否则只剩一条时直接采用;多条且都不一致时取「未使用」的。
|
||||
*/
|
||||
export function pickPlatformCouponRow(
|
||||
rows: Array<Record<string, unknown>>,
|
||||
ourCertNo: string,
|
||||
): Record<string, unknown> | null {
|
||||
const usable = (Array.isArray(rows) ? rows : []).filter(
|
||||
(row) => Object.prototype.toString.call(row) === '[object Object]',
|
||||
)
|
||||
if (usable.length === 0) {
|
||||
return null
|
||||
}
|
||||
|
||||
const exact = usable.find(
|
||||
(row) => String(row.cert_no || '').trim() === String(ourCertNo || '').trim(),
|
||||
)
|
||||
if (exact) {
|
||||
return exact
|
||||
}
|
||||
if (usable.length === 1) {
|
||||
return usable[0] || null
|
||||
}
|
||||
|
||||
// 平台是否已在使用这张券:3 已使用 / verify_num > 0 都算
|
||||
return (
|
||||
usable.find((row) => Number(row.status) === 2) ||
|
||||
usable.find((row) => !isPlatformCouponVerified(row)) ||
|
||||
usable[0] ||
|
||||
null
|
||||
)
|
||||
}
|
||||
|
||||
/** 平台侧是否已经核销过(status=3 已使用,或 verify_num>0)。 */
|
||||
export function isPlatformCouponVerified(row: Record<string, unknown> | null | undefined): boolean {
|
||||
if (!row) {
|
||||
return false
|
||||
}
|
||||
return Number(row.status) === 3 || Number(row.verify_num || 0) > 0
|
||||
}
|
||||
|
||||
export async function findCertificateOrThrow(certNo: string): Promise<RedeemCertificateRow> {
|
||||
const row = await findRedeemCertificateByCertNo(certNo)
|
||||
|
||||
|
||||
@@ -4,9 +4,15 @@ import assert from 'node:assert/strict'
|
||||
import {
|
||||
REDEEM_CERT_CODE_PREFIX,
|
||||
generateRedeemCertificateCode,
|
||||
resolveRedeemVerifyCertNo,
|
||||
} from '../../repositories/redeem-certificate-repo.js'
|
||||
import { createDefaultDouyinMashidaSourceConfig } from '../platforms/douyin-mashida/source-config-service.js'
|
||||
import { buildAfterVerifyMessage, formatGrantTime } from './certificate-service.js'
|
||||
import {
|
||||
buildAfterVerifyMessage,
|
||||
formatGrantTime,
|
||||
isPlatformCouponVerified,
|
||||
pickPlatformCouponRow,
|
||||
} from './certificate-service.js'
|
||||
import { maskCertNo, normalizeOrderNo } from './redeem-service.js'
|
||||
|
||||
test('DYC 券码:前缀 + 16 位 Crockford Base32(去易混字符)', () => {
|
||||
@@ -67,3 +73,56 @@ test('兑换后通知买家的文案:默认文案 / 带链接 / 自定义文
|
||||
'充值已完成,请点击使用:https://x.com/c',
|
||||
)
|
||||
})
|
||||
|
||||
test('核销券码必须优先用平台侧券码(真实踩坑:平台会改名)', () => {
|
||||
// 平台改名过 → 用平台券码
|
||||
assert.equal(
|
||||
resolveRedeemVerifyCertNo({
|
||||
cert_no: 'DYC05EJH7G66VG0EVFN',
|
||||
platform_cert_no: 'S683sWRJXaY74DZkrT',
|
||||
}),
|
||||
'S683sWRJXaY74DZkrT',
|
||||
)
|
||||
// 还没回查到平台券码(历史数据/回查失败)→ 退回我方券码
|
||||
assert.equal(resolveRedeemVerifyCertNo({ cert_no: 'DYCXXX', platform_cert_no: '' }), 'DYCXXX')
|
||||
assert.equal(resolveRedeemVerifyCertNo({ cert_no: 'DYCXXX' }), 'DYCXXX')
|
||||
})
|
||||
|
||||
test('从 coupons.list 结果里挑券:券码一致优先,其次唯一一条,都改名则取未使用的', () => {
|
||||
assert.equal(pickPlatformCouponRow([], 'DYC1'), null)
|
||||
|
||||
// 券码完全一致
|
||||
assert.equal(
|
||||
pickPlatformCouponRow(
|
||||
[
|
||||
{ cert_no: 'OTHER', status: 2 },
|
||||
{ cert_no: 'DYC1', status: 2 },
|
||||
],
|
||||
'DYC1',
|
||||
)?.cert_no,
|
||||
'DYC1',
|
||||
)
|
||||
// 平台改了名但只有一条 → 采用(这正是真实场景)
|
||||
assert.equal(
|
||||
pickPlatformCouponRow([{ cert_no: 'ExsweiKSGejRcM3Z06', status: 2 }], 'DYC2')?.cert_no,
|
||||
'ExsweiKSGejRcM3Z06',
|
||||
)
|
||||
// 多条都改名 → 取「未使用」那条
|
||||
assert.equal(
|
||||
pickPlatformCouponRow(
|
||||
[
|
||||
{ cert_no: 'A', status: 3 },
|
||||
{ cert_no: 'B', status: 2 },
|
||||
],
|
||||
'DYC3',
|
||||
)?.cert_no,
|
||||
'B',
|
||||
)
|
||||
})
|
||||
|
||||
test('平台侧是否已核销:status=3 或 verify_num>0', () => {
|
||||
assert.equal(isPlatformCouponVerified({ status: 3, verify_num: 1 }), true)
|
||||
assert.equal(isPlatformCouponVerified({ status: 2, verify_num: 1 }), true)
|
||||
assert.equal(isPlatformCouponVerified({ status: 2, verify_num: 0 }), false)
|
||||
assert.equal(isPlatformCouponVerified(null), false)
|
||||
})
|
||||
|
||||
Reference in New Issue
Block a user