2026-09-18 16:18:31 +08:00
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// services/api/src/sync/dto.ts —— 内部同步端点请求 DTO(P2 Task 3
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2026-09-18 18:45:43 +08:00
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// bootstrap/reconcile;Task 4 增 digest;Task 9 增 stat-snapshots)。
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// 契约权威:openapi.yaml [internal](syncBootstrap/syncReconcile/syncDigest/
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// syncStatSnapshots)。经全局 ValidationPipe(whitelist)剥离未知字段;校验
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// 失败 400 VALIDATION_FAILED。
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import { Type } from 'class-transformer';
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import {
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ArrayMaxSize,
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ArrayMinSize,
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IsDateString,
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IsIn,
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IsInt,
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IsOptional,
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IsString,
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Max,
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Min,
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ValidateIf,
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ValidateNested,
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} from 'class-validator';
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/** 契约 SyncEntityType(slot-state 预留——与 openapi enum 同步)。 */
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export const SYNC_ENTITY_TYPES = [
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'album',
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'category',
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'photo',
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'asset',
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'slot-state',
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] as const;
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/** 契约 BootstrapRequest:albumId 缺省 = 全部相册。 */
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export class BootstrapRequestDto {
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@IsOptional()
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@IsString()
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albumId?: string;
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}
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/** 契约 ReconcileRequest:必填 entityType/sinceVersion/limit。 */
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export class ReconcileRequestDto {
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@IsIn(SYNC_ENTITY_TYPES)
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entityType!: (typeof SYNC_ENTITY_TYPES)[number];
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@IsOptional()
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@IsString()
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albumId?: string;
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@IsInt()
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@Min(0)
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sinceVersion!: number;
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@IsInt()
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@Min(1)
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@Max(1000)
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limit!: number;
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}
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/** 契约 DigestRequest(Task 4):albumId 缺省 = 全部相册。 */
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export class DigestRequestDto {
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@IsOptional()
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@IsString()
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albumId?: string;
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}
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/** 契约 SyncStatKind(与 openapi enum 同步)。 */
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export const SYNC_STAT_KINDS = ['likes', 'views'] as const;
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/**
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* 契约 StatSnapshot(Task 9 ov→cn 统计快照单元)。kind=likes 时 photoId 必填
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* (ValidateIf 条件校验,违反 → 400);kind=views 时 photoId 即使携带也仅作
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* 透传字段,接收端按 albumId 应用(相册级快照无照片位)。
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*/
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export class StatSnapshotDto {
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// 仅 kind=likes 时校验(条件为 true 时 undefined 也过不了 IsString → 400,
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// 即契约「likes 时 photoId 必填」);kind=views 时跳过、接收端忽略该字段。
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@ValidateIf((o: StatSnapshotDto) => o.kind === 'likes')
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@IsString()
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photoId?: string;
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@IsString()
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albumId!: string;
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@IsIn(SYNC_STAT_KINDS)
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kind!: (typeof SYNC_STAT_KINDS)[number];
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@IsInt()
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@Min(0)
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total!: number;
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@IsInt()
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@Min(1)
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statVersion!: number;
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@IsString()
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source!: string;
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@IsDateString()
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confirmedAt!: string;
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}
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/** 契约 StatSnapshotRequest(Task 9):批次上限对齐 SYNC_BATCH_SIZE 量级。 */
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export class StatSnapshotRequestDto {
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@ArrayMinSize(1)
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@ArrayMaxSize(100)
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@ValidateNested({ each: true })
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@Type(() => StatSnapshotDto)
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snapshots!: StatSnapshotDto[];
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}
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