using AutoMapper;
using Kean.Application.Command.Interfaces;
using Kean.Application.Command.ViewModels;
using Kean.Domain;
using Kean.Domain.Order.Commands;
using System.Linq;
using System.Threading.Tasks;

namespace Kean.Application.Command.Implements
{
    /// <summary>
    /// 订单命令服务实现
    /// </summary>
    public class OrderService : IOrderService
    {
        private readonly ICommandBus _bus; // 命令总线
        private readonly IMapper _mapper; // 模型映射
        private readonly INotification _notifications; // 总线通知

        /// <summary>
        /// 依赖注入
        /// </summary>
        public OrderService(
            ICommandBus bus,
            IMapper mapper,
            INotification notifications)
        {
            _bus = bus;
            _mapper = mapper;
            _notifications = notifications;
        }

        /*
         * 实现 Kean.Application.Command.Interfaces.IOrderService.CreateType 方法
         */
        public async Task<(int Id, Failure Failure)> CreateType(Ordtyp type)
        {
            var command = _mapper.Map<CreateTypeCommand>(type);
            await _bus.Execute(command);
            return (command.Id, _notifications.FirstOrDefault());
        }

        /*
         * 实现 Kean.Application.Command.Interfaces.IOrderService.ModifyType 方法
         */
        public async Task<(bool Success, Failure Failure)> ModifyType(Ordtyp type)
        {
            await _bus.Execute(_mapper.Map<ModifyTypeCommand>(type));
            var failure = _notifications.FirstOrDefault();
            return (failure == null, failure);
        }

        /*
         * 实现 Kean.Application.Command.Interfaces.IOrderService.DeleteType 方法
         */
        public async Task<(bool Success, Failure Failure)> DeleteType(int id)
        {
            await _bus.Execute(new DeleteTypeCommand { Id = id });
            var failure = _notifications.FirstOrDefault();
            return (failure == null, failure);
        }

        /*
         * 实现 Kean.Application.Command.Interfaces.IOrderService.CreateFlow 方法
         */
        public async Task<(int Id, Failure Failure)> CreateFlow(Flow flow)
        {
            var command = _mapper.Map<CreateFlowCommand>(flow);
            await _bus.Execute(command);
            return (command.Id, _notifications.FirstOrDefault());
        }

        /*
         * 实现 Kean.Application.Command.Interfaces.IOrderService.ModifyFlow 方法
         */
        public async Task<(bool Success, Failure Failure)> ModifyFlow(Flow flow)
        {
            await _bus.Execute(_mapper.Map<ModifyFlowCommand>(flow));
            var failure = _notifications.FirstOrDefault();
            return (failure == null, failure);
        }

        /*
         * 实现 Kean.Application.Command.Interfaces.IOrderService.DeleteFlow 方法
         */
        public async Task<(bool Success, Failure Failure)> DeleteFlow(int id)
        {
            await _bus.Execute(new DeleteFlowCommand { Id = id });
            var failure = _notifications.FirstOrDefault();
            return (failure == null, failure);
        }

        /*
         * 实现 Kean.Application.Command.Interfaces.IOrderService.CreateOrder 方法
         */
        public async Task<(int Id, Failure Failure)> CreateOrder(Order order)
        {
            var command = _mapper.Map<CreateOrderCommand>(order);
            await _bus.Execute(command);
            return (command.Id, _notifications.FirstOrDefault());
        }

        /*
         * 实现 Kean.Application.Command.Interfaces.IOrderService.ModifyOrder 方法
         */
        public async Task<(bool Success, Failure Failure)> ModifyOrder(Order order)
        {
            await _bus.Execute(_mapper.Map<ModifyOrderCommand>(order));
            var failure = _notifications.FirstOrDefault();
            return (failure == null, failure);
        }

        /*
         * 实现 Kean.Application.Command.Interfaces.IOrderService.DeleteOrder 方法
         */
        public async System.Threading.Tasks.Task DeleteOrder(int id, bool state)
        {
            await _bus.Execute(new DeleteOrderCommand
            {
                Id = id,
                State = state
            });
        }
    }
}