using SiteManagementSystem_SoftwareEngineering_.Configuration;
using SiteManagementSystem_SoftwareEngineering_.Factory;
using SiteManagementSystem_SoftwareEngineering_.Interface;
using SiteManagementSystem_SoftwareEngineering_.Model;
using SiteManagementSystem_SoftwareEngineering_.Service;
using static SiteManagementSystem_SoftwareEngineering_.Service.UserManagerService;

namespace SiteManagementSystem_SoftwareEngineering_.Extension
{
    public static class IServiceCollectionExtension
    {
        public static IServiceCollection AddTokenFactory(
            this IServiceCollection services,
            Action<TokenFactoryConfiguration> options
        )
        {
            var config = new TokenFactoryConfiguration();
            options(config);
            if (config.Audience is null)
                throw new ArgumentNullException(nameof(config.Audience) + "can not be null.");
            if (config.Issuer is null)
                throw new ArgumentNullException(nameof(config.Issuer) + "can not be null.");
            if (config.SigningKey is null)
                throw new ArgumentNullException(nameof(config.SigningKey) + "can not be null.");
            services.AddScoped<ITokenFactory, TokenFactory>(_ => new TokenFactory(config));
            return services;
        }

        public static IServiceCollection AddUserManager(
            this IServiceCollection services,
            Action<SecretConfig> options
        )
        {
            var config = new SecretConfig();
            options(config);
            if (config.HashSalt is null)
                throw new ArgumentNullException(nameof(config.HashSalt) + "can not be null");
            services.AddScoped<IUserManageService, UserManageService>(services =>
            {
                var logger = services.GetRequiredService<ILogger<UserManageService>>();
                var storageService = services.GetRequiredService<SQLService>();
                return new UserManageService(storageService, logger, config.HashSalt);
            });
            return services;
        }

        public static IServiceCollection AddRedisUtils(
            this IServiceCollection services,
            Action<RedisConfig> options
        )
        {
            var config = new RedisConfig();
            options(config);
            if (config.RedisConnectionString is null)
                throw new ArgumentNullException("Redis ConnectionString is null.");
            services.AddSingleton<RedisUtils>(services =>
                new RedisUtils(config.RedisConnectionString, config.RedisDB, services.GetRequiredService<ILogger<RedisUtils>>())
            );
            return services;
        }
    }
}