feat(wip): 事件緩存以備離綫重連重發

server/api/EventStorer.ts

@@ -0,0 +1,53 @@
+import { DatabaseSync } from "node:sqlite"
+import path from 'node:path'
+
+import config from "../config.ts"
+import User from "../data/User.ts";
+import EventBean from "./EventBean.ts";
+
+export default class EventStorer {
+    static database: DatabaseSync = this.init()
+
+    private static init(): DatabaseSync {
+        const db: DatabaseSync = new DatabaseSync(path.join(config.data_path, 'Events.db'))
+        return db
+    }
+
+    static getInstanceForUser(user: User) {
+        return new EventStorer(user)
+    }
+
+    declare user: User
+    constructor(user: User) {
+        this.user = user
+
+        EventStorer.database.exec(`
+            CREATE TABLE IF NOT EXISTS ${this.getTableName()} (
+                /* 序号 */ count INTEGER PRIMARY KEY AUTOINCREMENT,
+                /* 事件 */ event_name TEXT NOT NULL,
+                /* 數據 */ data TEXT NOT NULL,
+            );
+       `)
+    }
+    protected getTableName() {
+        return `events_${this.user.bean.id}`
+    }
+    addEvent(eventName: string, data: unknown) {
+        EventStorer.database.prepare(`INSERT INTO ${this.getTableName()} (
+            event_name,
+            data
+        ) VALUES (?, ?);`).run(
+            eventName,
+            JSON.stringify(data)
+        )
+    }
+    getEvents() {
+        return EventStorer.database.prepare(`SELECT * FROM ${this.getTableName()};`).all().map((v: any) => ({
+            ...v,
+            data: JSON.parse(v.data)
+        })) as unknown as EventBean[]
+    }
+    clearEvents() {
+        EventStorer.database.prepare(`DELETE FROM ${this.getTableName()};`).run()
+    }
+}