using LiveForum.Model.Dto.Others;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Options;

namespace LiveForum.WebApi.Controllers
{
    /// <summary>
    /// 配置测试控制器（测试配置绑定，生产环境应删除）
    /// </summary>
    [ApiController]
    [Route("api/[controller]")]
    public class ConfigTestController : ControllerBase
    {
        private readonly IOptionsSnapshot<TencentCosConfig> _cosConfigSnapshot;
        private readonly IOptionsSnapshot<AppSettings> _appSettingsSnapshot;
        private readonly IConfiguration _configuration;

        public ConfigTestController(
            IOptionsSnapshot<TencentCosConfig> cosConfigSnapshot,
            IOptionsSnapshot<AppSettings> appSettingsSnapshot,
            IConfiguration configuration)
        {
            _cosConfigSnapshot = cosConfigSnapshot;
            _appSettingsSnapshot = appSettingsSnapshot;
            _configuration = configuration;
        }

        /// <summary>
        /// 测试腾讯云COS配置绑定
        /// </summary>
        [HttpGet("test-cos-config")]
        public IActionResult TestCosConfig()
        {
            var config = _cosConfigSnapshot.Value;

            return Ok(new
            {
                Message = "腾讯云COS配置绑定测试",
                Config = new
                {
                    config.AppId,
                    config.Region,
                    SecretId = MaskSecret(config.SecretId),
                    SecretKey = MaskSecret(config.SecretKey),
                    config.BucketName,
                    config.DomainUrl,
                    config.MaxSize,
                    config.DurationSecond,
                    config.Prefixes
                },
                Note = "SecretId 和 SecretKey 已脱敏显示"
            });
        }

        /// <summary>
        /// 测试应用配置绑定
        /// </summary>
        [HttpGet("test-app-settings")]
        public IActionResult TestAppSettings()
        {
            var settings = _appSettingsSnapshot.Value;

            return Ok(new
            {
                Message = "应用配置绑定测试",
                Settings = new
                {
                    settings.UserDefaultIcon,
                    settings.UserDefaultName
                }
            });
        }

        /// <summary>
        /// 对比原始配置和绑定后的配置
        /// </summary>
        [HttpGet("compare-configs")]
        public IActionResult CompareConfigs()
        {
            var cosConfig = _cosConfigSnapshot.Value;

            return Ok(new
            {
                Message = "配置绑定对比",
                原始配置格式 = new
                {
                    APPID = _configuration["TENCENT_COS:AppId"],
                    REGION = _configuration["TENCENT_COS:Region"],
                    SECRET_ID = MaskSecret(_configuration["TENCENT_COS:SecretId"]),
                    BUCKET_NAME = _configuration["TENCENT_COS:BucketName"],
                    MAX_SIZE = _configuration["TENCENT_COS:MaxSize"]
                },
                绑定后的模型 = new
                {
                    cosConfig.AppId,
                    cosConfig.Region,
                    SecretId = MaskSecret(cosConfig.SecretId),
                    cosConfig.BucketName,
                    cosConfig.MaxSize
                },
                说明 = new[]
                {
                    "配置文件使用 PascalCase (AppId, Region)",
                    ".NET 配置绑定自动处理大小写和下划线",
                    "推荐使用规范的 PascalCase 命名"
                }
            });
        }

        /// <summary>
        /// 测试配置热更新
        /// </summary>
        [HttpGet("test-hot-reload")]
        public IActionResult TestHotReload()
        {
            var cosConfig = _cosConfigSnapshot.Value;
            var appSettings = _appSettingsSnapshot.Value;

            return Ok(new
            {
                Message = "配置热更新测试",
                说明 = "在 AgileConfig 中修改配置后，刷新此接口查看配置是否更新",
                当前时间 = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"),
                COS配置 = new
                {
                    cosConfig.Region,
                    cosConfig.BucketName,
                    cosConfig.MaxSize,
                    cosConfig.DomainUrl
                },
                应用配置 = new
                {
                    appSettings.UserDefaultName,
                    appSettings.UserDefaultIcon
                },
                测试步骤 = new[]
                {
                    "1. 记录当前配置值",
                    "2. 在 AgileConfig 中修改配置",
                    "3. 刷新此接口",
                    "4. 对比配置值是否已更新"
                }
            });
        }

        /// <summary>
        /// 脱敏显示敏感信息
        /// </summary>
        private string MaskSecret(string secret)
        {
            if (string.IsNullOrEmpty(secret) || secret.Length <= 8)
            {
                return "***";
            }
            return secret.Substring(0, 4) + "***" + secret.Substring(secret.Length - 4);
        }
    }
}