52 lines
1.8 KiB
TypeScript
52 lines
1.8 KiB
TypeScript
import { DatabaseSync } from "node:sqlite"
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// import { Buffer } from "node:buffer"
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import path from 'node:path'
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import config from '../config.ts'
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import ChatBean from './ChatBean.ts'
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import { SQLInputValue } from "node:sqlite"
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import chalk from "chalk"
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/**
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* Chat.ts - Wrapper and manager
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* Wrap with ChatBean to directly update database
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* Manage the database by itself (static)
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*/
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export default class Chat {
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static table_name: string = "Chat"
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private static database: DatabaseSync = Chat.init()
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private static init(): DatabaseSync {
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const db: DatabaseSync = new DatabaseSync(path.join(config.data_path, 'Chats.db'))
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db.exec(`
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CREATE TABLE IF NOT EXISTS ${Chat.table_name} (
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/* 序号 */ count INTEGER PRIMARY KEY AUTOINCREMENT,
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/* Chat ID, 哈希 */ id TEXT,
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/* 设置 */ settings TEXT NOT NULL
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);
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`)
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return db
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}
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private static findAllBeansByCondition(condition: string, ...args: SQLInputValue[]): ChatBean[] {
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return this.database.prepare(`SELECT * FROM ${Chat.table_name} WHERE ${condition}`).all(...args) as unknown as ChatBean[]
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}
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static findById(id: string): Chat {
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const beans = this.findAllBeansByCondition('id = ?', id)
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if (beans.length == 0)
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throw new Error(`找不到 id 为 ${id} 的 Chat`)
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else if (beans.length > 1)
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console.error(chalk.red(`警告: 查询 id = ${id} 时, 查询到多个相同 ID 的 Chat`))
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return new Chat(beans[0])
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}
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declare bean: ChatBean
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constructor(bean: ChatBean) {
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this.bean = bean
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}
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private setAttr(key: string, value: SQLInputValue): void {
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Chat.database.prepare(`UPDATE ${Chat.table_name} SET ${key} = ? WHERE id = ?`).run(value, this.bean.id)
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this.bean[key] = value
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}
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}
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