import { DatabaseSync } from "node:sqlite"
import fs from 'node:fs/promises'

await fs.mkdir('data', { recursive: true })

const db = new DatabaseSync("data/users.db")
const TABEL_NAME = "Users"

// 初始化表格
db.exec(
  `
    CREATE TABLE IF NOT EXISTS ${TABEL_NAME} (
      /* 伺服器中 ID */ id INTEGER PRIMARY KEY AUTOINCREMENT,
      /* 用戶名, 可選 */ username TEXT,
      /* 姓名 */ nickname TEXT NOT NULL,
      /* 头像, 可选 */ avatar BLOB
    );
  `,
)

// 插入测试数据
db.prepare(
  `
    INSERT INTO ${TABEL_NAME} (username, nickname, avatar) VALUES (?, ?, ?);
  `,
).run("SisterWen", "文姐", null)

let rows = db.prepare(`SELECT id, username, nickname, avatar FROM ${TABEL_NAME}`).all();
for (const row of rows) {
  console.log(row)
}

// 更新用户名
// 用户名要合规, 以免导致 SQL 注入！
db.prepare(`UPDATE ${TABEL_NAME} SET username = ? WHERE id = ?`).run("文姐", 1)

rows = db.prepare(`SELECT id, username, nickname, avatar FROM ${TABEL_NAME} WHERE username = ?`).all("文姐")
for (const row of rows) {
    console.log(row)
}

db.close()