using Microsoft.AspNetCore.Mvc;
using RIZO.Model.PLC;
using RIZO.Service.PLC.IService;

namespace RIZO.Admin.WebApi.Controllers.Plc
{
    [ApiController]
    [Route("api/[controller]")]
    public class PlcDataController : ControllerBase
    {
        private readonly IPlcDataService _plcDataService;
        private readonly ILogger<PlcDataController> _logger;

        public PlcDataController(
            IPlcDataService plcDataService,
            ILogger<PlcDataController> logger)
        {
            _plcDataService = plcDataService;
            _logger = logger;
        }

        /// <summary>
        /// 获取所有工站数据概览
        /// </summary>
        [HttpGet]
        public ActionResult<AllStationsDataDto> GetAllStationsData()
        {
            try
            {
                var allData = _plcDataService.GetAllStationData();
                var connectedCount = allData.Count(s => s.Value.IsConnected);

                var result = new AllStationsDataDto
                {
                    Stations = allData.ToDictionary(
                        kvp => kvp.Key,
                        kvp => new StationDataDto
                        {
                            StationName = kvp.Value.StationName,
                            IsConnected = kvp.Value.IsConnected,
                            LastUpdateTime = kvp.Value.LastReadTime,
                            LastConnectTime = kvp.Value.LastConnectTime,
                            ReadFailureCount = kvp.Value.ReadFailureCount,
                            CurrentValues = kvp.Value.DataItems.ToDictionary(
                                di => di.Key,
                                di => di.Value.Value
                            )
                        }
                    ),
                    ServerTime = DateTime.Now,
                    TotalStations = allData.Count,
                    ConnectedStations = connectedCount
                };

                return Ok(result);
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "获取所有工站数据失败");
                return StatusCode(500, new { error = "获取数据失败" });
            }
        }

        /// <summary>
        /// 获取指定工站详细数据
        /// </summary>
        [HttpGet("{stationName}")]
        public ActionResult<StationDataDto> GetStationData(string stationName)
        {
            try
            {
                var stationData = _plcDataService.GetStationData(stationName);
                if (stationData == null)
                    return NotFound(new { error = $"未找到工位: {stationName}" });

                var result = new StationDataDto
                {
                    StationName = stationData.StationName,
                    IsConnected = stationData.IsConnected,
                    LastUpdateTime = stationData.LastReadTime,
                    LastConnectTime = stationData.LastConnectTime,
                    ReadFailureCount = stationData.ReadFailureCount,
                    CurrentValues = stationData.DataItems.ToDictionary(
                        di => di.Key,
                        di => di.Value.Value
                    )
                };

                return Ok(result);
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, $"获取工位 {stationName} 数据失败");
                return StatusCode(500, new { error = "获取数据失败" });
            }
        }

        /// <summary>
        /// 获取指定数据项的详细信息
        /// </summary>
        [HttpGet("{stationName}/data/{dataItemName}")]
        public ActionResult<object> GetDataItemDetail(string stationName, string dataItemName)
        {
            try
            {
                var stationData = _plcDataService.GetStationData(stationName);
                if (stationData == null)
                    return NotFound(new { error = $"未找到工位: {stationName}" });

                if (!stationData.DataItems.ContainsKey(dataItemName))
                    return NotFound(new { error = $"未找到数据项: {dataItemName}" });

                var dataItem = stationData.DataItems[dataItemName];
                return Ok(new
                {
                    Name = dataItem.Name,
                    Value = dataItem.Value,
                    LastUpdateTime = dataItem.LastUpdateTime,
                    IsSuccess = dataItem.IsSuccess,
                    ErrorMessage = dataItem.ErrorMessage
                });
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, $"获取工位 {stationName} 数据项 {dataItemName} 失败");
                return StatusCode(500, new { error = "获取数据失败" });
            }
        }

        /// <summary>
        /// 手动重连指定工站
        /// </summary>
        [HttpPost("{stationName}/reconnect")]
        public async Task<IActionResult> ReconnectStation(string stationName)
        {
            try
            {
                var success = await _plcDataService.ReconnectStationAsync(stationName);
                if (success)
                    return Ok(new { message = $"工位 {stationName} 重连成功" });
                else
                    return BadRequest(new { error = $"工位 {stationName} 重连失败" });
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, $"重连工位 {stationName} 失败");
                return StatusCode(500, new { error = "重连失败" });
            }
        }

        /// <summary>
        /// 写入数据到PLC
        /// </summary>
        [HttpPost("{stationName}/write")]
        public async Task<IActionResult> WriteData(string stationName, [FromBody] WriteDataRequest request)
        {
            try
            {
                if (string.IsNullOrEmpty(request.DataItemName))
                    return BadRequest(new { error = "数据项名称不能为空" });

                var success = await _plcDataService.WriteDataAsync(stationName, request.DataItemName, request.Value);
                if (success)
                    return Ok(new { message = "写入成功" });
                else
                    return BadRequest(new { error = "写入失败" });
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, $"写入工位 {stationName} 数据失败");
                return StatusCode(500, new { error = "写入失败" });
            }
        }
    }

    public class WriteDataRequest
    {
        public string DataItemName { get; set; } = string.Empty;
        public object Value { get; set; } = new();
    }
}