const Database = require('better-sqlite3');
const config = require('../config/env');
const path = require('path');
const logger = require('../utils/logger');

//自动创建数据库连接
const dbPath = config.app.dbPath || path.join(__dirname, '../../sync.sqlite');
const db = new Database(dbPath);

db.exec(`
  CREATE TABLE IF NOT EXISTS issue_mapping (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    repo_key TEXT NOT NULL,       -- 仓库标识 (owner/repo格式)
    gitea_id INTEGER NOT NULL,    -- Gitea Issue Number
    jira_key TEXT NOT NULL,       -- Jira Key (e.g., LTM-123)
    jira_id TEXT NOT NULL,        -- Jira Internal ID
    UNIQUE(repo_key, gitea_id)    -- 同一仓库的Issue不能重复
  )
`);

const cleanup = () => {
    try {
        logger.info('Closing database connection...');
        db.close();
        logger.info('Database connection closed');
    } catch (err) {
        logger.error('Failed to close database', err.message);
    }
};

process.on('SIGINT', () => {
    cleanup();
    process.exit(0);
});

process.on('SIGTERM', () => {
    cleanup();
    process.exit(0);
});

process.on('exit', () => {
    if (db.open) {
        cleanup();
    }
});

logger.info(`Database connected at ${dbPath}`);
module.exports = db;