using System;
using System.ComponentModel.DataAnnotations;
using PaySharp.Core;

namespace PaySharp.Alipay
{
    public class Merchant : IMerchant
    {
        #region 属性

        /// <summary>
        /// 应用ID
        /// </summary>
        [Required(ErrorMessage = "请输入支付机构提供的应用编号")]
        public string AppId { get; set; }

        /// <summary>
        /// 签名类型
        /// </summary>
        public string SignType { get; set; } = "RSA2";

        /// <summary>
        /// 格式
        /// </summary>
        public string Format => "JSON";

        /// <summary>
        /// 时间戳
        /// </summary>
        public string Timestamp => DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss");

        /// <summary>
        /// 版本
        /// </summary>
        public string Version => "1.0";

        /// <summary>
        /// 编码格式
        /// </summary>
        public string Charset => "UTF-8";

        /// <summary>
        /// 商户私钥
        /// </summary>
        [Required(ErrorMessage = "请设置商户私钥")]
        [Ignore]
        public string Privatekey { get; set; }

        /// <summary>
        /// 支付宝公钥
        /// 查看地址：https://openhome.alipay.com/platform/keyManage.htm 对应APPID下的支付宝公钥
        /// </summary>
        [Required(ErrorMessage = "请设置支付宝公钥")]
        [Ignore]
        public string AlipayPublicKey { get; set; }

        private string returnUrl;
        /// <summary>
        /// 返回地址
        /// </summary>
        public string ReturnUrl
        {
            get => returnUrl;
            set
            {
                if (value.StartsWith("http") || value.StartsWith("https"))
                {
                    returnUrl = value;
                }
                else
                {
                    throw new FormatException("返回地址必须以http或https开头");
                }
            }
        }

        /// <summary>
        /// 网关回发通知URL
        /// </summary>
        public string NotifyUrl { get; set; }

        /// <summary>
        /// 支付宝公钥证书文件路径
        /// </summary>
        public string AlipayCertPath { get; set; }
        /// <summary>
        /// 应用公钥证书文件路径
        /// </summary>
        public string MerchantCertPath { get; set; }
        /// <summary>
        /// 支付宝根证书文件路径
        /// </summary>
        public string AlipayRootCertPath { get; set; }

        #endregion

        private CertEnvironment certEnvironment;
        /// <summary>
        /// 证书模式运行时环境
        /// </summary>
        public CertEnvironment CertEnvironment
        {
            get
            {
                if (string.IsNullOrEmpty(MerchantCertPath) && string.IsNullOrEmpty(AlipayCertPath) && string.IsNullOrEmpty(AlipayRootCertPath))
                {
                    return null;
                }
                if (certEnvironment != null) return certEnvironment;
                certEnvironment = new CertEnvironment(MerchantCertPath, AlipayCertPath, AlipayRootCertPath);
                return certEnvironment;
            }
        }

    }
}