65 lines
2.2 KiB
TypeScript
65 lines
2.2 KiB
TypeScript
/** 店铺数据结果批量下载任务（任务 113）：打包请求体与下载 job 状态；纯逻辑。 */
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export type ShopDataDownloadStatus = 'idle' | 'running' | 'done' | 'failed'
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export interface ShopDataDownloadJob {
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status: ShopDataDownloadStatus
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message?: string
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fileCount?: number
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errorCount?: number
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}
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/** 从 Content-Disposition 解析单文件下载名（rfc5987 优先），失败回默认名。 */
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export function shopDataFilenameFromDisposition(disposition: string | undefined, fallback: string): string {
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const text = typeof disposition === 'string' ? disposition : ''
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const encoded = /filename\*=UTF-8''([^;]+)/i.exec(text)
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if (encoded) {
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try {
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const decoded = decodeURIComponent(encoded[1])
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if (decoded.trim()) return decoded.trim()
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} catch {
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// 回退普通 filename
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}
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}
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const plain = /filename="?([^";]+)"?/i.exec(text)
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return plain && plain[1] ? plain[1].trim() : fallback
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}
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function finitePositive(value: unknown): number | null {
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const number = typeof value === 'number' && Number.isFinite(value)
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? value
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: typeof value === 'string' && /^\d+$/.test(value.trim())
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? Number(value.trim())
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: null
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return number === null || number < 1 ? null : Math.floor(number)
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}
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/** result_id → POST /download-zip 请求体(过滤非法 id，按序去重)。 */
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export function toShopDataZipRequest(resultIds: readonly (number | string)[]): { result_ids: number[] } {
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const ids: number[] = []
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const seen = new Set<number>()
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for (const id of resultIds) {
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const parsed = finitePositive(id)
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if (parsed === null || seen.has(parsed)) continue
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seen.add(parsed)
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ids.push(parsed)
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}
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return { result_ids: ids }
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}
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export function createShopDataDownloadJob(): ShopDataDownloadJob {
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return { status: 'idle' }
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}
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export function startShopDataDownload(): ShopDataDownloadJob {
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return { status: 'running' }
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}
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export function succeedShopDataDownload(_job: ShopDataDownloadJob, fileCount: number, errorCount: number): ShopDataDownloadJob {
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return { status: 'done', fileCount, errorCount }
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}
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export function failShopDataDownload(_job: ShopDataDownloadJob, message: string): ShopDataDownloadJob {
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return { status: 'failed', message }
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}
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