using Kean.Application.Command.ViewModels;
using Kean.Application.Query.ViewModels;
using Kean.Domain;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using System;
using System.Linq;
using System.Text.Json;
using System.Threading.Tasks;

namespace Kean.Presentation.Rest.Controllers
{
    /// <summary>
    /// 订单服务
    /// </summary>
    [ApiController, Route("api/orders")]
    public class OrdersController : ControllerBase
    {
        private readonly Application.Command.Interfaces.IOrderService _orderCommandService; // 订单信息命令服务
        private readonly Application.Query.Interfaces.IOrderService _orderQueryService; // 订单信息查询服务
        private readonly IConfiguration _configuration;

        /// <summary>
        /// 依赖注入
        /// </summary>
        public OrdersController(
            Application.Command.Interfaces.IOrderService orderCommandService,
            IConfiguration configuration,
            Application.Query.Interfaces.IOrderService orderQueryService)
        {
            _orderCommandService = orderCommandService;
            _orderQueryService = orderQueryService;
            _configuration = configuration;
        }

        /// <summary>
        /// 获取系统行为列表
        /// </summary>
        /// <response code="200">成功</response>
        [HttpGet("actions")]
        [ProducesResponseType(200)]
        public async Task<IActionResult> GetActionList()
        {
            var items = await _orderQueryService.GetActionList();
            return StatusCode(200, new { items, total = items.Count() });
        }

        /// <summary>
        /// 获取订单类型列表
        /// </summary>
        /// <response code="200">成功</response>
        [HttpGet("types")]
        [ProducesResponseType(200)]
        public async Task<IActionResult> GetTypeList()
        {
            var items = await _orderQueryService.GetTypeList();
            return StatusCode(200, new { items, total = items.Count() });
        }

        /// <summary>
        /// 创建订单类型
        /// </summary>
        /// <response code="201">成功</response>
        /// <response code="409">类型已存在</response>
        /// <response code="422">请求内容错误</response>
        [HttpPost("types")]
        [ProducesResponseType(201)]
        [ProducesResponseType(409)]
        [ProducesResponseType(422)]
        public async Task<IActionResult> CreateType(Application.Command.ViewModels.Ordtyp type)
        {
            if (type.Menu != null)
            {
                foreach (var key in type.Menu.Keys)
                {
                    var jsonElement = (JsonElement)type.Menu[key];
                    type.Menu[key] = jsonElement.ValueKind switch
                    {
                        JsonValueKind.Number => jsonElement.GetInt32(),
                        JsonValueKind.String => jsonElement.GetString(),
                        _ => null
                    };
                }
            }
            var result = await _orderCommandService.CreateType(type);
            return result switch
            {
                { Id: > 0 } => StatusCode(201, result.Id),
                { Failure.ErrorCode: nameof(ErrorCode.Conflict) } => StatusCode(409, result.Failure),
                _ => StatusCode(422, result.Failure)
            };
        }

        /// <summary>
        /// 修改订单类型
        /// </summary>
        /// <response code="200">成功</response>
        /// <response code="409">类型已存在</response>
        /// <response code="410">类型已删除</response>
        /// <response code="422">请求内容错误</response>
        /// <response code="423">类型被锁定</response>
        [HttpPut("types/{id}")]
        [ProducesResponseType(200)]
        [ProducesResponseType(409)]
        [ProducesResponseType(410)]
        [ProducesResponseType(422)]
        [ProducesResponseType(423)]
        public async Task<IActionResult> ModifyType(int id, Application.Command.ViewModels.Ordtyp type)
        {
            type.Id = id;
            if (type.Menu != null)
            {
                foreach (var key in type.Menu.Keys)
                {
                    var jsonElement = (JsonElement)type.Menu[key];
                    type.Menu[key] = jsonElement.ValueKind switch
                    {
                        JsonValueKind.Number => jsonElement.GetInt32(),
                        JsonValueKind.String => jsonElement.GetString(),
                        _ => null
                    };
                }
            }
            var result = await _orderCommandService.ModifyType(type);
            return result switch
            {
                { Success: true } => StatusCode(200),
                { Failure.ErrorCode: nameof(ErrorCode.Conflict) } => StatusCode(409, result.Failure),
                { Failure.ErrorCode: nameof(ErrorCode.Gone) } => StatusCode(410, result.Failure),
                { Failure.ErrorCode: nameof(ErrorCode.Locked) } => StatusCode(423, result.Failure),
                _ => StatusCode(422, result.Failure)
            };
        }

        /// <summary>
        /// 删除订单类型
        /// </summary>
        /// <response code="204">成功</response>
        /// <response code="422">请求内容错误</response>
        /// <response code="423">类型被锁定</response>
        [HttpDelete("types/{id}")]
        [ProducesResponseType(204)]
        [ProducesResponseType(422)]
        [ProducesResponseType(423)]
        public async Task<IActionResult> DeleteType(int id)
        {
            var result = await _orderCommandService.DeleteType(id);
            return result switch
            {
                { Success: true } => StatusCode(204),
                { Failure.ErrorCode: nameof(ErrorCode.Locked) } => StatusCode(423, result.Failure),
                _ => StatusCode(422, result.Failure)
            };
        }

        /// <summary>
        /// 获取工作流列表
        /// </summary>
        /// <response code="200">成功</response>
        [HttpGet("flows")]
        [ProducesResponseType(200)]
        public async Task<IActionResult> GetFlowList()
        {
            var items = await _orderQueryService.GetFlowList();
            return StatusCode(200, new { items, total = items.Count() });
        }

        /// <summary>
        /// 创建工作流
        /// </summary>
        /// <response code="201">成功</response>
        /// <response code="409">工作流已存在</response>
        /// <response code="422">请求内容错误</response>
        [HttpPost("flows")]
        [ProducesResponseType(201)]
        [ProducesResponseType(409)]
        [ProducesResponseType(422)]
        public async Task<IActionResult> CreateFlow(Application.Command.ViewModels.Flow flow)
        {
            var result = await _orderCommandService.CreateFlow(flow);
            return result switch
            {
                { Id: > 0 } => StatusCode(201, result.Id),
                { Failure.ErrorCode: nameof(ErrorCode.Conflict) } => StatusCode(409, result.Failure),
                _ => StatusCode(422, result.Failure)
            };
        }

        /// <summary>
        /// 修改工作流
        /// </summary>
        /// <response code="200">成功</response>
        /// <response code="409">工作流已存在</response>
        /// <response code="410">工作流已删除</response>
        /// <response code="422">请求内容错误</response>
        /// <response code="423">工作流被锁定</response>
        [HttpPut("flows/{id}")]
        [ProducesResponseType(200)]
        [ProducesResponseType(409)]
        [ProducesResponseType(410)]
        [ProducesResponseType(422)]
        [ProducesResponseType(423)]
        public async Task<IActionResult> ModifyFlow(int id, Application.Command.ViewModels.Flow flow)
        {
            flow.Id = id;
            var result = await _orderCommandService.ModifyFlow(flow);
            return result switch
            {
                { Success: true } => StatusCode(200),
                { Failure.ErrorCode: nameof(ErrorCode.Conflict) } => StatusCode(409, result.Failure),
                { Failure.ErrorCode: nameof(ErrorCode.Gone) } => StatusCode(410, result.Failure),
                { Failure.ErrorCode: nameof(ErrorCode.Locked) } => StatusCode(423, result.Failure),
                _ => StatusCode(422, result.Failure)
            };
        }

        /// <summary>
        /// 删除工作流
        /// </summary>
        /// <response code="204">成功</response>
        /// <response code="422">请求内容错误</response>
        /// <response code="423">类型被锁定</response>
        [HttpDelete("flows/{id}")]
        [ProducesResponseType(204)]
        [ProducesResponseType(422)]
        [ProducesResponseType(423)]
        public async Task<IActionResult> DeleteFlow(int id)
        {
            var result = await _orderCommandService.DeleteFlow(id);
            return result switch
            {
                { Success: true } => StatusCode(204),
                { Failure.ErrorCode: nameof(ErrorCode.Locked) } => StatusCode(423, result.Failure),
                _ => StatusCode(422, result.Failure)
            };
        }

        /// <summary>
        /// 获取实例列表
        /// </summary>
        /// <response code="200">成功</response>
        [HttpGet]
        [ProducesResponseType(200)]
        public async Task<IActionResult> GetOrderList(
            [FromQuery] int? type,
            [FromQuery] int? flow,
            [FromQuery] int? node,
            [FromQuery] string no,
            [FromQuery] string creater,
            [FromQuery] DateTime? createTimeFrom,
            [FromQuery] DateTime? createTimeTo,
            [FromQuery] string sort,
            [FromQuery] int? offset,
            [FromQuery] int? limit)
        {
            var items = await _orderQueryService.GetOrderList(type, flow, node, no, creater, createTimeFrom, createTimeTo, sort, offset, limit);
            if (offset.HasValue || limit.HasValue)
            {
                var total = await _orderQueryService.GetOrderCount(type, flow, node, no, creater, createTimeFrom, createTimeTo);
                return StatusCode(200, new { items, total });
            }
            else
            {
                return StatusCode(200, new { items, total = items.Count() });
            }
        }

        /// <summary>
        /// 获取行列表
        /// </summary>
        /// <response code="200">成功</response>
        [HttpGet("{id}/lines")]
        [ProducesResponseType(200)]
        public async Task<IActionResult> GetLineList(
            [FromRoute] int? id,
            [FromQuery] string sort,
            [FromQuery] int? offset,
            [FromQuery] int? limit)
        {
            var items = await _orderQueryService.GetLineList(id, sort, offset, limit);
            if (offset.HasValue || limit.HasValue)
            {
                var total = await _orderQueryService.GetLineCount(id);
                return StatusCode(200, new { items, total });
            }
            else
            {
                return StatusCode(200, new { items, total = items.Count() });
            }
        }

        /// <summary>
        /// 创建订单
        /// </summary>
        /// <response code="201">成功</response>
        /// <response code="422">请求内容错误</response>
        [HttpPost]
        [ProducesResponseType(201)]
        [ProducesResponseType(422)]
        public async Task<IActionResult> CreateOrder(Application.Command.ViewModels.Order order)
        {
            var result = await _orderCommandService.CreateOrder(order);
            if (result.Id > 0)
            {
                return StatusCode(201, result.Id);
            }
            else
            {
                return StatusCode(422, result.Failure);
            }
        }

        /// <summary>
        /// 修改订单
        /// </summary>
        /// <response code="200">成功</response>
        /// <response code="422">请求内容错误</response>
        [HttpPut("{id}")]
        [ProducesResponseType(200)]
        [ProducesResponseType(422)]
        public async Task<IActionResult> ModifyOrder(int id, Application.Command.ViewModels.Order order)
        {
            order.Id = id;
            var result = await _orderCommandService.ModifyOrder(order);
            if (result.Success)
            {
                return StatusCode(200);
            }
            else
            {
                return StatusCode(422, result.Failure);
            }
        }

        /// <summary>
        /// 删除订单
        /// </summary>
        /// <response code="204">成功</response>
        [HttpDelete("{id}")]
        [ProducesResponseType(204)]
        public async Task<IActionResult> DeleteOrder(int id)
        {
            await _orderCommandService.DeleteOrder(Math.Abs(id), id > 0);
            return StatusCode(204);
        }

    }
}