<?php
// 数据库连接和初始化

$db_path = __DIR__ . '/../data/database.db';
$is_new_db = !file_exists($db_path);

try {
    $db = new PDO('sqlite:' . $db_path);
    $db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

    // 如果是新数据库，初始化表结构
    if ($is_new_db) {
        // 创建 apps 表
        $db->exec("
            CREATE TABLE IF NOT EXISTS apps (
                id INTEGER PRIMARY KEY AUTOINCREMENT,
                filename TEXT NOT NULL,
                original_name TEXT NOT NULL,
                version TEXT,
                description TEXT,
                upload_time DATETIME DEFAULT CURRENT_TIMESTAMP,
                file_size INTEGER
            )
        ");

        // 创建 config 表
        $db->exec("
            CREATE TABLE IF NOT EXISTS config (
                key TEXT PRIMARY KEY,
                value TEXT
            )
        ");

        // 插入默认配置
        $defaults = [
            ['site_title', 'OPS 运营管理系统'],
            ['site_description', '点击下方按钮下载移动端 APP'],
            ['logo_path', 'logo.png']
        ];

        $stmt = $db->prepare("INSERT INTO config (key, value) VALUES (?, ?)");
        foreach ($defaults as $config) {
            $stmt->execute($config);
        }
    }

} catch (PDOException $e) {
    die("数据库连接失败: " . $e->getMessage());
}