feat: add asset import services

src/lib/services/effectmap.ts

@@ -0,0 +1,58 @@
+import { resolveGamedataFile } from '@/lib/services/import/core/asset-paths'
+import {
+  readGamedataJson,
+  withGamedataLock,
+  writeGamedataJsonAtomic,
+} from '@/lib/services/import/core/gamedata-json'
+import { siteSettings } from '@/lib/services/site-settings'
+import type { EffectMapEntry } from '@/types/effects'
+
+interface EffectMapFile {
+  effects: EffectMapEntry[]
+}
+
+// Test seam: allows the suite to point the resolver at a temp file.
+let pathOverride: string | null = null
+export function __setEffectMapPathForTests(p: string | null): void {
+  pathOverride = p
+}
+
+export async function getEffectMapPath(): Promise<string> {
+  if (pathOverride) return pathOverride
+  const url = await siteSettings.get('effectmap_url', '/nitro-assets/gamedata/EffectMap.json')
+  return resolveGamedataFile(url ?? '/nitro-assets/gamedata/EffectMap.json', 'EffectMap.json')
+}
+
+export async function readEffectMap(): Promise<EffectMapFile> {
+  const file = await getEffectMapPath()
+  const data = await readGamedataJson<Partial<EffectMapFile>>(file)
+  return { effects: Array.isArray(data.effects) ? data.effects : [] }
+}
+
+export async function listLocalEffects(): Promise<EffectMapEntry[]> {
+  return (await readEffectMap()).effects
+}
+
+export async function mergeEffect(entry: EffectMapEntry): Promise<void> {
+  const file = await getEffectMapPath()
+  await withGamedataLock(file, async () => {
+    const data = await readGamedataJson<Partial<EffectMapFile>>(file)
+    const effects = Array.isArray(data.effects) ? data.effects : []
+    const idx = effects.findIndex((e) => e.id === entry.id)
+    if (idx >= 0) effects[idx] = entry
+    else effects.push(entry)
+    await writeGamedataJsonAtomic(file, { ...data, effects })
+  })
+}
+
+export async function removeEffect(idOrLib: string): Promise<boolean> {
+  const file = await getEffectMapPath()
+  return withGamedataLock(file, async () => {
+    const data = await readGamedataJson<Partial<EffectMapFile>>(file)
+    const effects = Array.isArray(data.effects) ? data.effects : []
+    const next = effects.filter((e) => e.id !== idOrLib && e.lib !== idOrLib)
+    const removed = next.length < effects.length
+    if (removed) await writeGamedataJsonAtomic(file, { ...data, effects: next })
+    return removed
+  })
+}