import { onUnmounted, Ref, ref, watch } from 'vue'; import { $i } from './account'; import { api, stream } from './os'; type StateDef = Record; type ArrayElement = A extends readonly (infer T)[] ? T : never; export class Storage { public readonly key: string; public readonly keyForLocalStorage: string; public readonly def: T; // TODO: これが実装されたらreadonlyにしたい: https://github.com/microsoft/TypeScript/issues/37487 public readonly state: { [K in keyof T]: T[K]['default'] }; public readonly reactiveState: { [K in keyof T]: Ref }; private connection = stream.useChannel('main'); constructor(key: string, def: T) { this.key = key; this.keyForLocalStorage = 'pizzax::' + key; this.def = def; // TODO: indexedDBにする const deviceState = JSON.parse(localStorage.getItem(this.keyForLocalStorage) || '{}'); const deviceAccountState = $i ? JSON.parse(localStorage.getItem(this.keyForLocalStorage + '::' + $i.id) || '{}') : {}; const registryCache = $i ? JSON.parse(localStorage.getItem(this.keyForLocalStorage + '::cache::' + $i.id) || '{}') : {}; const state = {}; const reactiveState = {}; for (const [k, v] of Object.entries(def)) { if (v.where === 'device' && Object.prototype.hasOwnProperty.call(deviceState, k)) { state[k] = deviceState[k]; } else if (v.where === 'account' && $i && Object.prototype.hasOwnProperty.call(registryCache, k)) { state[k] = registryCache[k]; } else if (v.where === 'deviceAccount' && Object.prototype.hasOwnProperty.call(deviceAccountState, k)) { state[k] = deviceAccountState[k]; } else { state[k] = v.default; if (_DEV_) console.log('Use default value', k, v.default); } } for (const [k, v] of Object.entries(state)) { reactiveState[k] = ref(v); } this.state = state as any; this.reactiveState = reactiveState as any; if ($i) { // なぜかsetTimeoutしないとapi関数内でエラーになる(おそらく循環参照してることに原因がありそう) setTimeout(() => { api('i/registry/get-all', { scope: ['client', this.key] }).then(kvs => { const cache = {}; for (const [k, v] of Object.entries(def)) { if (v.where === 'account') { if (Object.prototype.hasOwnProperty.call(kvs, k)) { state[k] = kvs[k]; reactiveState[k].value = kvs[k]; cache[k] = kvs[k]; } else { state[k] = v.default; reactiveState[k].value = v.default; } } } localStorage.setItem(this.keyForLocalStorage + '::cache::' + $i.id, JSON.stringify(cache)); }); }, 1); // streamingのuser storage updateイベントを監視して更新 this.connection.on('registryUpdated', ({ scope, key, value }) => { this.state[key] = value as typeof this.state[key]['default']; this.reactiveState[key].value = value; const cache = JSON.parse(localStorage.getItem(this.keyForLocalStorage + '::cache::' + $i.id) || '{}'); cache[key] = value; localStorage.setItem(this.keyForLocalStorage + '::cache::' + $i.id, JSON.stringify(cache)); }); } } public set(key: K, value: T[K]['default']): void { if (_DEV_) console.log('set', key, value); this.state[key] = value; this.reactiveState[key].value = value; switch (this.def[key].where) { case 'device': { const deviceState = JSON.parse(localStorage.getItem(this.keyForLocalStorage) || '{}'); deviceState[key] = value; localStorage.setItem(this.keyForLocalStorage, JSON.stringify(deviceState)); break; } case 'deviceAccount': { if ($i == null) break; const deviceAccountState = JSON.parse(localStorage.getItem(this.keyForLocalStorage + '::' + $i.id) || '{}'); deviceAccountState[key] = value; localStorage.setItem(this.keyForLocalStorage + '::' + $i.id, JSON.stringify(deviceAccountState)); break; } case 'account': { if ($i == null) break; const cache = JSON.parse(localStorage.getItem(this.keyForLocalStorage + '::cache::' + $i.id) || '{}'); cache[key] = value; localStorage.setItem(this.keyForLocalStorage + '::cache::' + $i.id, JSON.stringify(cache)); api('i/registry/set', { scope: ['client', this.key], key: key, value: value }); break; } } } public push(key: K, value: ArrayElement): void { const currentState = this.state[key]; this.set(key, [...currentState, value]); } public reset(key: keyof T) { this.set(key, this.def[key].default); } /** * 特定のキーの、簡易的なgetter/setterを作ります * 主にvue場で設定コントロールのmodelとして使う用 */ public makeGetterSetter(key: K, getter?: (v: T[K]) => unknown, setter?: (v: unknown) => T[K]) { const valueRef = ref(this.state[key]); const stop = watch(this.reactiveState[key], val => { valueRef.value = val; }); // NOTE: vueコンポーネント内で呼ばれない限りは、onUnmounted は無意味なのでメモリリークする onUnmounted(() => { stop(); }); // TODO: VueのcustomRef使うと良い感じになるかも return { get: () => { if (getter) { return getter(valueRef.value); } else { return valueRef.value; } }, set: (value: unknown) => { const val = setter ? setter(value) : value; this.set(key, val); valueRef.value = val; } }; } }