using FreeSql;

using LiveForum.IService.Others;
using LiveForum.Model;

namespace LiveForum.Service.Others
{
    /// <summary>
    /// 系统设置服务实现
    /// </summary>
    public class SystemSettingsService : ISystemSettingsService
    {
        private readonly IBaseRepository<T_SystemSettings> _settingsRepository;

        /// <summary>
        /// 构造函数
        /// </summary>
        public SystemSettingsService(IBaseRepository<T_SystemSettings> settingsRepository)
        {
            _settingsRepository = settingsRepository;
        }

        /// <summary>
        /// 获取配置值
        /// </summary>
        public async Task<string?> GetSettingAsync(string key)
        {
            if (string.IsNullOrWhiteSpace(key))
            {
                return null;
            }

            var setting = await _settingsRepository.Select
                .Where(x => x.SettingKey == key)
                .FirstAsync();

            return setting?.SettingValue;
        }

        /// <summary>
        /// 设置配置值
        /// </summary>
        public async Task<bool> SetSettingAsync(string key, string value, string? description = null)
        {
            if (string.IsNullOrWhiteSpace(key))
            {
                return false;
            }

            var setting = await _settingsRepository.Select
                .Where(x => x.SettingKey == key)
                .FirstAsync();

            var now = DateTime.Now;

            if (setting == null)
            {
                // 新建配置
                setting = new T_SystemSettings
                {
                    SettingKey = key,
                    SettingValue = value,
                    Description = description,
                    UpdatedAt = now
                };
                await _settingsRepository.InsertAsync(setting);
            }
            else
            {
                // 更新配置
                setting.SettingValue = value;
                setting.UpdatedAt = now;
                await _settingsRepository.UpdateAsync(setting);
            }

            return true;
        }
    }
}