using AutoMapper;
using Kean.Application.Query.Interfaces;
using Kean.Application.Query.ViewModels;
using Kean.Infrastructure.Database;
using Kean.Infrastructure.Database.Repository.Default;
using Kean.Infrastructure.Database.Repository.Default.Entities;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace Kean.Application.Query.Implements
{
    /// <summary>
    /// 控制信息查询服务实现
    /// </summary>
    public sealed class WcsService : IWcsService
    {
        private readonly IMapper _mapper; // 模型映射
        private readonly IDefaultDb _database; // 默认数据库

        /// <summary>
        /// 依赖注入
        /// </summary>
        public WcsService(
            IMapper mapper,
            IDefaultDb database)
        {
            _mapper = mapper;
            _database = database;
        }

        /*
         * 实现 Kean.Application.Query.Interfaces.IControlService.GetInstructionCount 方法
         */
        public async Task<int> GetInstructionCount(string[] warehouse, string direction, int? function, string device, string barcode, int? state, DateTime? beginFrom, DateTime? beginTo, DateTime? endFrom, DateTime? endTo)
        {
            return (await GetInstructionSchema(warehouse, direction, function, device, barcode, state, beginFrom, beginTo, endFrom, endTo)
                .Single(c => new { Count = Function.Count(c.CONTROL_ID) }))
                .Count;
        }

        /*
         * 实现 Kean.Application.Query.Interfaces.IControlService.GetInstructionList 方法
         */
        public async Task<IEnumerable<Instruction>> GetInstructionList(string[] warehouse, string direction, int? function, string device, string barcode, int? state, DateTime? beginFrom, DateTime? beginTo, DateTime? endFrom, DateTime? endTo, string sort, int? offset, int? limit)
        {
            return _mapper.Map<IEnumerable<Instruction>>(await GetInstructionSchema(warehouse, direction, function, device, barcode, state, beginFrom, beginTo, endFrom, endTo)
                .Sort<V_IO_CONTROL, Instruction>(sort, _mapper)
                .OrderBy(c => c.BEGIN_TIME, Infrastructure.Database.Order.Descending)
                .Page(offset, limit)
                .Select());
        }

        /*
         * 组织 GetInstruction 相关方法的条件
         */
        private ISchema<V_IO_CONTROL> GetInstructionSchema(string[] warehouse, string direction, int? function, string device, string barcode, int? state, DateTime? beginFrom, DateTime? beginTo, DateTime? endFrom, DateTime? endTo)
        {
            var schema = _database.From<V_IO_CONTROL>();
            if (warehouse != null)
            {
                schema = schema.Where(c => warehouse.Contains(c.CONTROL_WAREHOUSE));
            }
            if (direction != null)
            {
                schema = schema.Where(c => c.CONTROL_DIRECTION == direction);
            }
            if (function.HasValue)
            {
                schema = schema.Where(c => c.CONTROL_FUNCTION == function.Value);
            }
            if (device != null)
            {
                schema = schema.Where(c => c.CONTROL_DEVICE.Contains(device));
            }
            if (barcode != null)
            {
                schema = schema.Where(c => c.STOCK_BARCODE.Contains(barcode));
            }
            if (state.HasValue)
            {
                schema = schema.Where(c => c.CONTROL_STATUS == state.Value);
            }
            if (beginFrom.HasValue)
            {
                schema = schema.Where(c => c.BEGIN_TIME >= beginFrom.Value);
            }
            if (beginTo.HasValue)
            {
                schema = schema.Where(c => c.BEGIN_TIME <= beginTo.Value.AddDays(1));
            }
            if (endFrom.HasValue)
            {
                schema = schema.Where(c => c.END_TIME >= endFrom.Value);
            }
            if (endTo.HasValue)
            {
                schema = schema.Where(c => c.END_TIME <= endTo.Value.AddDays(1));
            }
            return schema;
        }
    }
}