using System;
using System.Collections.Generic;
using System.Net.Http;
using System.Text;
using System.Web.Http;
using CncModels.Dto;
using CncModels.Dto.Dashboard;
using CncService.Interface;
using CncWebApi.Infrastructure;
using Newtonsoft.Json;

namespace CncWebApi.Controllers
{
    /// <summary>
    /// 仪表盘控制器
    /// </summary>
    [RoutePrefix("api/admin/dashboard")]
    [JwtAuthFilter]
    public class DashboardController : ApiController
    {
        private readonly IDashboardService _dashboardService;
        private static readonly HttpClient _httpClient = new HttpClient { Timeout = TimeSpan.FromSeconds(10) };

        /// <summary>
        /// 构造函数
        /// </summary>
        public DashboardController(IDashboardService dashboardService)
        {
            _dashboardService = dashboardService;
        }

        /// <summary>
        /// 8个统计卡片数据
        /// GET /api/admin/dashboard/summary
        /// </summary>
        [HttpGet]
        [Route("summary")]
        public IHttpActionResult GetSummary()
        {
            var result = _dashboardService.GetSummary();
            return Ok(ApiResponse<DashboardSummaryResponse>.Success(result));
        }

        /// <summary>
        /// 车间平均单机产量
        /// GET /api/admin/dashboard/workshop-production
        /// </summary>
        [HttpGet]
        [Route("workshop-production")]
        public IHttpActionResult GetWorkshopProduction(DateTime? startDate = null, DateTime? endDate = null)
        {
            var result = _dashboardService.GetWorkshopProduction(startDate, endDate);
            return Ok(ApiResponse<object>.Success(new { items = result }));
        }

        /// <summary>
        /// 机床产量排行TOP10
        /// GET /api/admin/dashboard/machine-rank
        /// </summary>
        [HttpGet]
        [Route("machine-rank")]
        public IHttpActionResult GetMachineRank(DateTime? startDate = null, DateTime? endDate = null, int top = 10)
        {
            var result = _dashboardService.GetMachineRank(startDate, endDate, top);
            return Ok(ApiResponse<object>.Success(new { items = result }));
        }

        /// <summary>
        /// 工人产量排行TOP10
        /// GET /api/admin/dashboard/worker-rank
        /// </summary>
        [HttpGet]
        [Route("worker-rank")]
        public IHttpActionResult GetWorkerRank(DateTime? startDate = null, DateTime? endDate = null, int top = 10)
        {
            var result = _dashboardService.GetWorkerRank(startDate, endDate, top);
            return Ok(ApiResponse<object>.Success(new { items = result }));
        }

        /// <summary>
        /// 产量趋势（近7天）
        /// GET /api/admin/dashboard/trend
        /// </summary>
        [HttpGet]
        [Route("trend")]
        public IHttpActionResult GetProductionTrend(int days = 7)
        {
            var result = _dashboardService.GetProductionTrend(days);
            return Ok(ApiResponse<object>.Success(result));
        }

        /// <summary>
        /// 机床状态分布
        /// GET /api/admin/dashboard/machine-status-distribution
        /// </summary>
        [HttpGet]
        [Route("machine-status-distribution")]
        public IHttpActionResult GetMachineStatusDistribution()
        {
            var result = _dashboardService.GetMachineStatusDistribution();
            return Ok(ApiResponse<object>.Success(result));
        }

        /// <summary>
        /// 最新5条告警
        /// GET /api/admin/dashboard/recent-alerts
        /// </summary>
        [HttpGet]
        [Route("recent-alerts")]
        public IHttpActionResult GetRecentAlerts(int count = 5)
        {
            var result = _dashboardService.GetRecentAlerts(count);
            return Ok(ApiResponse<object>.Success(new { items = result }));
        }

        /// <summary>
        /// 采集服务状态
        /// GET /api/admin/collector/status
        /// </summary>
        [HttpGet]
        [Route("~/api/admin/collector/status")]
        public IHttpActionResult GetCollectorStatus()
        {
            var result = _dashboardService.GetCollectorStatus();
            return Ok(ApiResponse<object>.Success(result));
        }

        /// <summary>
        /// 启动采集服务（转发到CncCollector的5800端口）
        /// POST /api/admin/collector/start
        /// </summary>
        [HttpPost]
        [Route("~/api/admin/collector/start")]
        public IHttpActionResult StartCollector()
        {
            return ForwardToCollector("/api/collector/start");
        }

        /// <summary>
        /// 停止采集服务
        /// POST /api/admin/collector/stop
        /// </summary>
        [HttpPost]
        [Route("~/api/admin/collector/stop")]
        public IHttpActionResult StopCollector()
        {
            return ForwardToCollector("/api/collector/stop");
        }

        /// <summary>
        /// 刷新采集服务配置
        /// POST /api/admin/collector/refresh
        /// </summary>
        [HttpPost]
        [Route("~/api/admin/collector/refresh")]
        public IHttpActionResult RefreshCollectorConfig()
        {
            return ForwardToCollector("/api/collector/refresh");
        }

        /// <summary>
        /// 转发请求到采集服务
        /// </summary>
        private IHttpActionResult ForwardToCollector(string path)
        {
            try
            {
                var request = new HttpRequestMessage(HttpMethod.Post, $"http://localhost:5800{path}");
                request.Headers.Add("X-Api-Key", "collector_api_key_2026");
                var response = _httpClient.SendAsync(request).Result;
                var body = response.Content.ReadAsStringAsync().Result;
                return Ok(ApiResponse<object>.Success(new { forwarded = true, collectorResponse = JsonConvert.DeserializeObject(body) }));
            }
            catch (Exception ex)
            {
                return Ok(ApiResponse<object>.Success(new { forwarded = false, error = ex.Message }));
            }
        }
    }
}