优化

web/src/utils/mediaSort.ts

@@ -0,0 +1,205 @@
+import type { Media } from '../types'
+import { seriesTitle, type SeriesCard } from './groupSeries'
+
+export type SortField =
+  | 'title'
+  | 'release_date'
+  | 'year'
+  | 'created_at'
+  | 'updated_at'
+  | 'rating'
+  | 'imdb_rating'
+  | 'last_played'
+  | 'duration'
+  | 'bitrate'
+  | 'random'
+
+export type SortOrder = 'asc' | 'desc'
+
+export type SortOption = {
+  id: SortField
+  label: string
+  defaultOrder: SortOrder
+}
+
+export const SORT_OPTIONS: SortOption[] = [
+  { id: 'title', label: '标题', defaultOrder: 'asc' },
+  { id: 'release_date', label: '发行日期', defaultOrder: 'desc' },
+  { id: 'year', label: '年份', defaultOrder: 'desc' },
+  { id: 'created_at', label: '加入日期', defaultOrder: 'desc' },
+  { id: 'updated_at', label: '最后一集添加日期', defaultOrder: 'desc' },
+  { id: 'rating', label: '影评人评分', defaultOrder: 'desc' },
+  { id: 'imdb_rating', label: 'IMDB评分', defaultOrder: 'desc' },
+  { id: 'last_played', label: '播放日期', defaultOrder: 'desc' },
+  { id: 'duration', label: '播放时长', defaultOrder: 'desc' },
+  { id: 'bitrate', label: '比特率', defaultOrder: 'desc' },
+  { id: 'random', label: '随机', defaultOrder: 'desc' },
+]
+
+export function getSortOption(field: SortField): SortOption {
+  return SORT_OPTIONS.find((opt) => opt.id === field) ?? SORT_OPTIONS[0]
+}
+
+// 简单伪随机洗牌（基于 seed 保证同一渲染周期内稳定）
+function pseudoRandomShuffle<T>(array: T[], seed = 1): T[] {
+  const result = [...array]
+  let currentSeed = seed
+  const random = () => {
+    currentSeed = (currentSeed * 9301 + 49297) % 233280
+    return currentSeed / 233280
+  }
+  for (let i = result.length - 1; i > 0; i--) {
+    const j = Math.floor(random() * (i + 1))
+    const temp = result[i]
+    result[i] = result[j]
+    result[j] = temp
+  }
+  return result
+}
+
+function compareStrings(a?: string, b?: string, order: SortOrder = 'asc'): number {
+  const valA = (a ?? '').trim()
+  const valB = (b ?? '').trim()
+  if (!valA && !valB) return 0
+  if (!valA) return 1
+  if (!valB) return -1
+  const cmp = valA.localeCompare(valB, 'zh-CN', { numeric: true, sensitivity: 'base' })
+  return order === 'asc' ? cmp : -cmp
+}
+
+function compareNumbers(a: number, b: number, order: SortOrder = 'asc'): number {
+  if (isNaN(a) && isNaN(b)) return 0
+  if (isNaN(a)) return 1
+  if (isNaN(b)) return -1
+  return order === 'asc' ? a - b : b - a
+}
+
+function compareDates(a?: string, b?: string, order: SortOrder = 'asc'): number {
+  const timeA = a ? new Date(a).getTime() : 0
+  const timeB = b ? new Date(b).getTime() : 0
+  const safeTimeA = isNaN(timeA) ? 0 : timeA
+  const safeTimeB = isNaN(timeB) ? 0 : timeB
+  if (!safeTimeA && !safeTimeB) return 0
+  if (!safeTimeA) return 1
+  if (!safeTimeB) return -1
+  return order === 'asc' ? safeTimeA - safeTimeB : safeTimeB - safeTimeA
+}
+
+export function sortMediaList(
+  items: Media[],
+  field: SortField,
+  order: SortOrder,
+  randomSeed = 1,
+  historyMap?: Map<string, string>,
+): Media[] {
+  if (!items || items.length === 0) return []
+  if (field === 'random') {
+    return pseudoRandomShuffle(items, randomSeed)
+  }
+
+  const list = [...items]
+  list.sort((a, b) => {
+    switch (field) {
+      case 'title':
+        return compareStrings(a.title || a.original_name, b.title || b.original_name, order)
+      case 'release_date': {
+        const dateA = a.release_date || (a.year ? `${a.year}-01-01` : '')
+        const dateB = b.release_date || (b.year ? `${b.year}-01-01` : '')
+        return compareDates(dateA, dateB, order) || compareStrings(a.title, b.title, 'asc')
+      }
+      case 'year': {
+        const cmp = compareNumbers(a.year || 0, b.year || 0, order)
+        return cmp !== 0 ? cmp : compareStrings(a.title, b.title, 'asc')
+      }
+      case 'created_at':
+        return compareDates(a.created_at, b.created_at, order) || compareStrings(a.title, b.title, 'asc')
+      case 'updated_at':
+        return compareDates(a.updated_at || a.created_at, b.updated_at || b.created_at, order) || compareStrings(a.title, b.title, 'asc')
+      case 'rating':
+      case 'imdb_rating': {
+        const cmp = compareNumbers(a.rating || 0, b.rating || 0, order)
+        return cmp !== 0 ? cmp : compareStrings(a.title, b.title, 'asc')
+      }
+      case 'last_played': {
+        const playedA = historyMap?.get(a.id)
+        const playedB = historyMap?.get(b.id)
+        return compareDates(playedA, playedB, order) || compareStrings(a.title, b.title, 'asc')
+      }
+      case 'duration': {
+        const cmp = compareNumbers(a.duration_sec || 0, b.duration_sec || 0, order)
+        return cmp !== 0 ? cmp : compareStrings(a.title, b.title, 'asc')
+      }
+      case 'bitrate': {
+        // 比特率 / 大小
+        const cmp = compareNumbers(a.size_bytes || 0, b.size_bytes || 0, order)
+        return cmp !== 0 ? cmp : compareStrings(a.title, b.title, 'asc')
+      }
+      default:
+        return 0
+    }
+  })
+  return list
+}
+
+export function sortSeriesList(
+  cards: SeriesCard[],
+  field: SortField,
+  order: SortOrder,
+  randomSeed = 1,
+  historyMap?: Map<string, string>,
+): SeriesCard[] {
+  if (!cards || cards.length === 0) return []
+  if (field === 'random') {
+    return pseudoRandomShuffle(cards, randomSeed)
+  }
+
+  const list = [...cards]
+  list.sort((a, b) => {
+    const repA = a.rep
+    const repB = b.rep
+    const titleA = seriesTitle(repA)
+    const titleB = seriesTitle(repB)
+
+    switch (field) {
+      case 'title':
+        return compareStrings(titleA, titleB, order)
+      case 'release_date': {
+        const dateA = repA.release_date || (repA.year ? `${repA.year}-01-01` : '')
+        const dateB = repB.release_date || (repB.year ? `${repB.year}-01-01` : '')
+        return compareDates(dateA, dateB, order) || compareStrings(titleA, titleB, 'asc')
+      }
+      case 'year': {
+        const cmp = compareNumbers(repA.year || 0, repB.year || 0, order)
+        return cmp !== 0 ? cmp : compareStrings(titleA, titleB, 'asc')
+      }
+      case 'created_at':
+        return compareDates(repA.created_at, repB.created_at, order) || compareStrings(titleA, titleB, 'asc')
+      case 'updated_at': {
+        const updateA = repA.updated_at || repA.created_at
+        const updateB = repB.updated_at || repB.created_at
+        return compareDates(updateA, updateB, order) || compareStrings(titleA, titleB, 'asc')
+      }
+      case 'rating':
+      case 'imdb_rating': {
+        const cmp = compareNumbers(repA.rating || 0, repB.rating || 0, order)
+        return cmp !== 0 ? cmp : compareStrings(titleA, titleB, 'asc')
+      }
+      case 'last_played': {
+        const playedA = historyMap?.get(repA.id)
+        const playedB = historyMap?.get(repB.id)
+        return compareDates(playedA, playedB, order) || compareStrings(titleA, titleB, 'asc')
+      }
+      case 'duration': {
+        const cmp = compareNumbers(repA.duration_sec || 0, repB.duration_sec || 0, order)
+        return cmp !== 0 ? cmp : compareStrings(titleA, titleB, 'asc')
+      }
+      case 'bitrate': {
+        const cmp = compareNumbers(repA.size_bytes || 0, repB.size_bytes || 0, order)
+        return cmp !== 0 ? cmp : compareStrings(titleA, titleB, 'asc')
+      }
+      default:
+        return 0
+    }
+  })
+  return list
+}