initial commit

src/composables/useAlbionPrices.ts

@@ -0,0 +1,137 @@
+import { ref, readonly } from 'vue'
+import type { AlbionPriceEntry, AlbionCity, ManualPriceEntry, ManualPriceCache } from '../types/api'
+
+// ─── Override duration ────────────────────────────────────────────────────────
+
+export const OVERRIDE_DURATION_OPTIONS: { label: string; ms: number }[] = [
+  { label: '30 min',  ms: 30 * 60 * 1000 },
+  { label: '1 hour',  ms: 60 * 60 * 1000 },
+  { label: '2 hours', ms: 2 * 60 * 60 * 1000 },
+  { label: '4 hours', ms: 4 * 60 * 60 * 1000 },
+  { label: '8 hours', ms: 8 * 60 * 60 * 1000 },
+  { label: '24 hours',ms: 24 * 60 * 60 * 1000 },
+]
+
+const DURATION_STORAGE_KEY = 'albion-override-duration'
+const MANUAL_STORAGE_KEY   = 'albion-manual-prices'
+
+function loadOverrideDuration(): number {
+  try {
+    const raw = localStorage.getItem(DURATION_STORAGE_KEY)
+    if (raw) {
+      const ms = Number(raw)
+      if (OVERRIDE_DURATION_OPTIONS.some(o => o.ms === ms)) return ms
+    }
+  } catch { /* ignore */ }
+  return 24 * 60 * 60 * 1000 // default 24 hours
+}
+
+function loadManualPricesFromStorage(): ManualPriceCache {
+  try {
+    const raw = localStorage.getItem(MANUAL_STORAGE_KEY)
+    if (raw) {
+      const obj = JSON.parse(raw) as Record<string, ManualPriceEntry>
+      return new Map(Object.entries(obj))
+    }
+  } catch { /* ignore */ }
+  return new Map()
+}
+
+function saveManualPricesToStorage(map: ManualPriceCache): void {
+  try {
+    const obj: Record<string, ManualPriceEntry> = {}
+    for (const [key, val] of map) obj[key] = val
+    localStorage.setItem(MANUAL_STORAGE_KEY, JSON.stringify(obj))
+  } catch { /* ignore */ }
+}
+
+// ─── Module-level singleton state ────────────────────────────────────────────
+
+const manualPrices     = ref<ManualPriceCache>(loadManualPricesFromStorage())
+const overrideDurationMs = ref<number>(loadOverrideDuration())
+
+// ─── Helpers ──────────────────────────────────────────────────────────────────
+
+function cacheKey(itemId: string, city: string): string {
+  return `${itemId}::${city}`
+}
+
+function isManualExpired(entry: ManualPriceEntry): boolean {
+  return Date.now() - new Date(entry.editedAt).getTime() > overrideDurationMs.value
+}
+
+function synthesizeManualEntry(
+  entry: ManualPriceEntry,
+  itemId: string,
+  city: AlbionCity,
+): AlbionPriceEntry {
+  return {
+    item_id: itemId,
+    city,
+    quality: 1,
+    sell_price_min: entry.sell_price_min,
+    sell_price_min_date: entry.editedAt,
+    sell_price_max: entry.sell_price_min,
+    buy_price_min: 0,
+    buy_price_max: 0,
+  }
+}
+
+// ─── Price accessors ──────────────────────────────────────────────────────────
+
+function getPrice(itemId: string, city: AlbionCity): AlbionPriceEntry | null {
+  const key = cacheKey(itemId, city)
+  const manual = manualPrices.value.get(key)
+  if (manual && !isManualExpired(manual)) {
+    return synthesizeManualEntry(manual, itemId, city)
+  }
+  return null
+}
+
+// ─── Manual price management ──────────────────────────────────────────────────
+
+function setManualPrice(itemId: string, city: AlbionCity, price: number): void {
+  const key = cacheKey(itemId, city)
+  const next = new Map(manualPrices.value)
+  next.set(key, { sell_price_min: price, editedAt: new Date().toISOString() })
+  manualPrices.value = next
+  saveManualPricesToStorage(next)
+}
+
+function clearManualPrice(itemId: string, city: AlbionCity): void {
+  const key = cacheKey(itemId, city)
+  if (!manualPrices.value.has(key)) return
+  const next = new Map(manualPrices.value)
+  next.delete(key)
+  manualPrices.value = next
+  saveManualPricesToStorage(next)
+}
+
+function isManualPrice(itemId: string, city: AlbionCity): boolean {
+  const entry = manualPrices.value.get(cacheKey(itemId, city))
+  return !!entry && !isManualExpired(entry)
+}
+
+function getManualEntry(itemId: string, city: AlbionCity): ManualPriceEntry | undefined {
+  const entry = manualPrices.value.get(cacheKey(itemId, city))
+  return entry && !isManualExpired(entry) ? entry : undefined
+}
+
+function setOverrideDuration(ms: number): void {
+  overrideDurationMs.value = ms
+  try { localStorage.setItem(DURATION_STORAGE_KEY, String(ms)) } catch { /* ignore */ }
+}
+
+// ─── Public API ───────────────────────────────────────────────────────────────
+
+export function useAlbionPrices() {
+  return {
+    overrideDurationMs: readonly(overrideDurationMs),
+    getPrice,
+    setManualPrice,
+    clearManualPrice,
+    isManualPrice,
+    getManualEntry,
+    setOverrideDuration,
+  }
+}