Files
LingChair/src/data/User.ts
CrescentLeaf d0b5890b99 initial
1. 修复 ignore
2. 推翻旧后端代码全部重写, 使用 SQLite
2025-08-01 22:53:05 +08:00

102 lines
3.4 KiB
TypeScript

import { DatabaseSync } from "node:sqlite"
import { Buffer } from "node:buffer"
import path from 'node:path'
import crypto from 'node:crypto'
import config from '../config.ts'
import UserBean from './UserBean.ts'
/**
* User.ts - Wrapper and manager
* Wrap with UserBean to directly update database
* Manage the database by itself (static)
*/
export default class User {
static table_name: string = "Users"
private static database: DatabaseSync = User.init()
private static init(): DatabaseSync {
const db: DatabaseSync = new DatabaseSync(path.join(config.data_path, 'Users.db'))
db.exec(`
CREATE TABLE IF NOT EXISTS ${TABEL_NAME} (
/* 序号 */ count INTEGER PRIMARY KEY AUTOINCREMENT,
/* 用户 ID, 哈希 */ id TEXT
/* 注册时间, 时间戳 */ registered_time INT8 NOT NULL,
/* 用戶名, 可選 */ username TEXT,
/* 昵称 */ nickname TEXT NOT NULL,
/* 头像, 可选 */ avatar BLOB,
/* 设置 */ settings TEXT NOT NULL
);
`)
return db
}
static create(userName: string | null, nickName: string, avatar: Buffer | null): User {
return new User(
User.findAllByCondition(
'count = ?',
database.prepare(`INSERT INTO ${User.table_name} (id, username, registered_time, nickname, avatar, settings) VALUES (?, ?, ?, ?, ?)`).run(
crypto.randomUUID(),
userName,
Date.now(),
nickName,
avatar,
"{}"
).lastInsertRowid
)
)
}
private static findAllByCondition(condition: string, ...args: unknown[]): UserBean[] {
return database.prepare(`SELECT * FROM ${User.table_name} WHERE ${condition}`).all(...args)
}
private static checkLengthOrThrow(array: Array, leng: number, errMsg: string): Array {
if (array.length != leng) throw new Error(errMsg)
return array
}
static findById(id: string): User {
return new User(checkLengthOrThrow(User.findAllByCondition('id = ?', id), 1, `找不到用户 ID 为 ${id} 的用户`)[0])
}
static findByUserName(userName: string): User {
return new User(checkLengthOrThrow(User.findAllByCondition('username = ?', userName), 1, `找不到用户名为 ${userName} 的用户`)[0])
}
declare bean: UserBean
constructor(bean: UserBean) {
this.bean = bean
}
/* 一切的基础都是 count ID */
private setAttr(key: string, value: unknown): void {
User.database.prepare(`UPDATE ${User.table_name} SET ${key} = ? WHERE count = ?`).run(value, this.bean.count)
this.bean[key] = value
}
getUserName(): string {
return this.bean.username
}
setUserName(userName: string): void {
this.setAttr("username", userName)
}
getNickName(): string {
return this.bean.nickname
}
setNickName(nickName: string): void {
this.setAttr("nickname", nickName)
}
getAvatar(): Uint8Array {
return this.bean.avatar
}
setAvatar(avatar: Buffer): void {
this.setAttr("avatar", avatar)
}
/* getSettings(): Settings {
}
static Settings = class {
}
static SettingsBean = interface {
} */
}