using System;
using System.Security.Principal;
using System.Threading.Tasks;
using BO.AppServer.Metadata.Enums;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;
using Quadarax.Foundation.Core.Business;
using Quadarax.Foundation.Core.Data.Interface.Entity.Dto;

namespace BO.AppServer.Business.Services
{
    public class ConfigurationService : AbstractService
    {
        private IServiceProvider _serviceProvider;

        public Configuration.Configuration Configuration { get; }

        public ConfigurationService(IOptions<Configuration.Configuration> config,
            IServiceProvider serviceProvider,
            IPrincipal currentPrincipal, 
            ILoggerFactory logger) : base(currentPrincipal, logger)
        {
            if (config == null)
                throw new ArgumentNullException(nameof(config));
            Configuration = config.Value;

            _serviceProvider = serviceProvider;
        }

        public async Task<ResultPlain> Install()
        {

            using (var scope = _serviceProvider.CreateScope())
            {
                var srvUsers = scope.ServiceProvider.GetRequiredService<UserService>();

                await srvUsers.EnsureRolesAsync();
                    
                await EnsureUser(srvUsers, Configuration.System.AccountSystem.Name,
                    Configuration.System.AccountSystem.Password,
                    Configuration.System.AccountSystem.Email,
                    Configuration.System.AccountSystem.CultureLcid, new[]
                    {
                        RoleEnum.System,
                    });

                await EnsureUser(srvUsers, Configuration.System.AccountConsole.Name,
                    Configuration.System.AccountConsole.Password,
                    Configuration.System.AccountConsole.Email,
                    Configuration.System.AccountConsole.CultureLcid, new[]
                    {
                        RoleEnum.System,
                        RoleEnum.Console,
                        RoleEnum.SuperAdmin
                    });

                await EnsureUser(srvUsers, Configuration.System.AccountAdmin.Name,
                    Configuration.System.AccountAdmin.Password,
                    Configuration.System.AccountAdmin.Email,
                    Configuration.System.AccountAdmin.CultureLcid, new[]
                    {
                        RoleEnum.User,
                        RoleEnum.SuperAdmin
                    });
            }
            return new ResultPlain();
        }

        protected async Task EnsureUser(UserService srvUsers, string userName, string userPassword, string userEmail, int prefferedLCID,
            RoleEnum[] roles)
        {
            if (!(await srvUsers.ExistsUserByNameAsync(userName)).Value)
                await srvUsers.CreateUserAsync(userName,
                    userPassword,
                    userEmail,
                    prefferedLCID, roles);
            else
                await srvUsers.EnusreUserRolesAsync(userName, roles);
        }
    }
}