huangzd1997
6ccd5ce1af
新增 shop-manage-list-state.ts：分组/店铺名筛选归一与激活判断、列表参数/ 查询序列化及分页信息派生；与 DTO 分页钳制对齐。 TDD: task-89.test.ts 8 用例先 RED 后 GREEN。
99 lines
3.4 KiB
TypeScript
99 lines
3.4 KiB
TypeScript
/** 店铺列表筛选与分页（任务 89）：店铺 FilterBar 的分组/店铺名筛选与列表查询、分页信息，纯逻辑。 */
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import {
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normalizeShopListParams,
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SHOP_PAGE_DEFAULT_SIZE,
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SHOP_PAGE_MAX_SIZE,
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SHOP_PAGE_MIN_PAGE,
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toShopManagePageQuery,
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type ShopManageListParams,
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type ShopManagePageQuery,
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} from './shop-dto.ts'
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/** 店铺列表筛选状态（页面局部）。 */
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export interface ShopManageFilter {
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groupId: number | null
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shopName: string
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}
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export function createShopManageFilter(): ShopManageFilter {
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return { groupId: null, shopName: '' }
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}
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function positiveGroupOrNull(value: unknown): number | null {
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if (typeof value === 'number') return Number.isFinite(value) && value >= 1 ? Math.floor(value) : null
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if (typeof value === 'string') {
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const text = value.trim()
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if (/^\d+$/.test(text)) {
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const parsed = Number(text)
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return parsed >= 1 ? Math.floor(parsed) : null
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}
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}
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return null
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}
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function shopNameText(value: unknown): string {
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return typeof value === 'string' ? value.trim() : ''
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}
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/** 由界面输入(分组下拉文本/店铺名输入)归一筛选状态。 */
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export function shopManageFilterFromInput(input: { groupId?: string | number | null; shopName?: string }): ShopManageFilter {
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const shopName = shopNameText(input.shopName)
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return { groupId: positiveGroupOrNull(input.groupId), shopName: shopName ? shopName : '' }
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}
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export function shopManageFilterActive(filter: ShopManageFilter): boolean {
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return filter.groupId !== null || Boolean(filter.shopName && filter.shopName.trim())
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}
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/** 筛选 + 页码 → 归一化列表参数（供 fetch 与查询序列化复用）。 */
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export function toShopManageListParams(page: number, pageSize: number, filter: ShopManageFilter): ShopManageListParams {
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return normalizeShopListParams({
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page,
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pageSize,
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groupId: filter.groupId,
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shopName: filter.shopName.trim() || undefined,
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})
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}
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/** 筛选 + 页码 → Java 查询参数（camelCase，仅下发非空）。 */
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export function toShopManageQuery(page: number, pageSize: number, filter: ShopManageFilter): ShopManagePageQuery {
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return toShopManagePageQuery(toShopManageListParams(page, pageSize, filter))
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}
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export interface ShopManagePageInfo {
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page: number
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pageSize: number
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total: number
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totalPages: number
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from: number
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to: number
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hasPrev: boolean
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hasNext: boolean
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}
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function finiteInt(value: unknown): number | null {
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return typeof value === 'number' && Number.isFinite(value) ? Math.floor(value) : null
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}
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/** 由总数与目标分页派生页码信息：页码钳制到 [1, totalPages]，空数据视为第 1 页。 */
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export function shopManagePageInfo(page: unknown, pageSize: unknown, total: unknown): ShopManagePageInfo {
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const rawSize = Math.max(finiteInt(pageSize) ?? SHOP_PAGE_DEFAULT_SIZE, SHOP_PAGE_MIN_PAGE)
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const size = Math.min(rawSize, SHOP_PAGE_MAX_SIZE)
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const safeTotal = Math.max(finiteInt(total) ?? 0, 0)
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const totalPages = safeTotal === 0 ? 1 : Math.max(1, Math.ceil(safeTotal / size))
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const requested = Math.max(finiteInt(page) ?? SHOP_PAGE_MIN_PAGE, SHOP_PAGE_MIN_PAGE)
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const safePage = Math.min(requested, totalPages)
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const from = safeTotal === 0 ? 0 : (safePage - 1) * size + 1
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const to = Math.min(safeTotal, safePage * size)
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return {
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page: safePage,
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pageSize: size,
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total: safeTotal,
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totalPages,
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from,
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to,
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hasPrev: safePage > 1,
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hasNext: safePage < totalPages && safeTotal > 0,
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}
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}
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