using System;
using System.Collections.Specialized;
using System.Configuration;

namespace YiDa_WinForm.Config
{
    /// <summary>
    /// 应用配置辅助类（读取 app.config 中的配置）
    /// </summary>
    public static class AppConfig
    {
        #region 数据库配置
        /// <summary>
        /// MySQL 连接字符串
        /// </summary>
        public static string MySqlConnectionString
        {
            get
            {
                // 读取 connectionStrings 节点中的配置
                return ConfigurationManager.ConnectionStrings["MySqlConnection"]?.ConnectionString 
                       ?? throw new Exception("未配置 MySQL 连接字符串");
            }
        }
        #endregion

        #region 宜搭接口配置
        /// <summary>
        /// 宜搭 Token AppKey
        /// </summary>
        public static string YiDaTokenAppKey => GetYiDaConfig("TokenAppKey");

        /// <summary>
        /// 宜搭 Token AppSecret
        /// </summary>
        public static string YiDaTokenAppSecret => GetYiDaConfig("TokenAppSecret");

        /// <summary>
        /// 宜搭 AppType
        /// </summary>
        public static string YiDaAppType => GetYiDaConfig("AppType");

        /// <summary>
        /// 宜搭 SystemToken
        /// </summary>
        public static string YiDaSystemToken => GetYiDaConfig("SystemToken");

        /// <summary>
        /// 宜搭 UserId
        /// </summary>
        public static string YiDaUserId => GetYiDaConfig("UserId");

        /// <summary>
        /// 宜搭 FormUuid
        /// </summary>
        public static string YiDaFormUuid => GetYiDaConfig("FormUuid");

        /// <summary>
        /// 宜搭 ProcessCode
        /// </summary>
        public static string YiDaProcessCode => GetYiDaConfig("ProcessCode");

        /// <summary>
        /// 读取宜搭配置项的通用方法
        /// </summary>
        /// <param name="key">配置项Key</param>
        /// <returns>配置值</returns>
        private static string GetYiDaConfig(string key)
        {
            var yiDaConfig = ConfigurationManager.GetSection("YiDaConfig") as NameValueCollection;
            if (yiDaConfig == null || string.IsNullOrEmpty(yiDaConfig[key]))
            {
                throw new Exception($"未配置宜搭参数：{key}");
            }
            return yiDaConfig[key];
        }
        #endregion
    }
}