using System;
using System.IO;

namespace XP.Common.Database.Configs
{
    /// <summary>
    /// SQLite 配置实体（从 App.config 读取）| SQLite configuration entity (loaded from App.config)
    /// </summary>
    public class SqliteConfig
    {
        /// <summary>
        /// 数据库文件路径 | Database file path
        /// </summary>
        public string DbFilePath { get; set; } = Path.Combine(
            Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData),
            "Files", "Data", "XP.db");

        /// <summary>
        /// 连接超时时间（秒，默认30）| Connection timeout (seconds, default 30)
        /// </summary>
        public int ConnectionTimeout { get; set; } = 30;

        /// <summary>
        /// 数据库不存在时是否自动创建（默认true）| Whether to auto-create if not exists (default true)
        /// </summary>
        public bool CreateIfNotExists { get; set; } = true;

        /// <summary>
        /// 是否启用 WAL 模式（提升并发性能，默认true）| Whether to enable WAL mode (default true)
        /// </summary>
        public bool EnableWalMode { get; set; } = true;

        /// <summary>
        /// 是否开启日志记录（记录所有SQL操作，默认false）| Whether to enable SQL logging (default false)
        /// </summary>
        public bool EnableSqlLogging { get; set; } = false;

        /// <summary>
        /// 获取 SQLite 连接字符串 | Get SQLite connection string
        /// </summary>
        public string GetConnectionString()
        {
            var builder = new Microsoft.Data.Sqlite.SqliteConnectionStringBuilder
            {
                DataSource = DbFilePath,
                Cache = Microsoft.Data.Sqlite.SqliteCacheMode.Default,
                DefaultTimeout = ConnectionTimeout
            };
            return builder.ToString();
        }
    }
}