using Microsoft.AspNetCore.Mvc;

namespace RIZO.Admin.WebApi.Controllers.Mes.Scanner
{
    [ApiController]
    [Route("api/[controller]")]
    public class ScannerController : ControllerBase
    {
        private readonly IScannerService _scannerService;
        private readonly ILogger<ScannerController> _logger;

        public ScannerController(IScannerService scannerService, ILogger<ScannerController> logger)
        {
            _scannerService = scannerService;
            _logger = logger;

            // 订阅扫码事件
            _scannerService.OnScanDataReceived += OnScanDataReceived;
            _scannerService.OnScannerError += OnScannerError;
        }

        [HttpPost("initialize")]
        public async Task<IActionResult> InitializeScanner([FromBody] ScannerConfig config)
        {
            try
            {
                var result = await _scannerService.InitializeAsync(config);
                if (result)
                {
                    return Ok(new { Success = true, Message = "扫码服务初始化成功" });
                }
                return BadRequest(new { Success = false, Message = "扫码服务初始化失败" });
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "初始化扫码服务时发生错误");
                return StatusCode(500, new { Success = false, Message = $"初始化失败: {ex.Message}" });
            }
        }

        [HttpPost("start")]
        public async Task<IActionResult> StartScanner()
        {
            try
            {
                var result = await _scannerService.StartAsync();
                if (result)
                {
                    return Ok(new { Success = true, Message = "扫码服务启动成功" });
                }
                return BadRequest(new { Success = false, Message = "扫码服务启动失败" });
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "启动扫码服务时发生错误");
                return StatusCode(500, new { Success = false, Message = $"启动失败: {ex.Message}" });
            }
        }

        [HttpPost("stop")]
        public async Task<IActionResult> StopScanner()
        {
            try
            {
                var result = await _scannerService.StopAsync();
                return Ok(new { Success = result, Message = "扫码服务已停止" });
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "停止扫码服务时发生错误");
                return StatusCode(500, new { Success = false, Message = $"停止失败: {ex.Message}" });
            }
        }

        [HttpPost("process")]
        public async Task<IActionResult> ProcessScanCode([FromBody] ScanRequest request)
        {
            try
            {
                var result = await _scannerService.ProcessScanCodeAsync(request.ScanCode);
                return Ok(result);
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "处理扫码数据时发生错误");
                return StatusCode(500, new ScanResult
                {
                    Success = false,
                    Message = $"处理失败: {ex.Message}"
                });
            }
        }

        [HttpGet("status")]
        public IActionResult GetScannerStatus()
        {
            var status = new
            {
                IsConnected = _scannerService.IsConnected,
                Status = _scannerService.IsConnected ? "运行中" : "已停止",
                LastUpdate = DateTime.Now
            };
            return Ok(status);
        }

        /// <summary>
        /// 扫码数据接收事件处理
        /// </summary>
        private void OnScanDataReceived(object? sender, ScanData scanData)
        {
            try
            {
                _logger.LogInformation($"Controller收到扫码数据: {scanData.Code} (类型: {scanData.CodeType})");

                // 这里可以：
                // 1. 通过SignalR推送到前端
                // 2. 更新数据库
                // 3. 调用其他服务
                // 4. 发送消息到消息队列

                // 示例：通过SignalR通知前端
                // await _hubContext.Clients.All.SendAsync("ReceiveScanData", scanData);
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "处理扫码数据事件时发生错误");
            }
        }

        /// <summary>
        /// 扫码错误事件处理
        /// </summary>
        private void OnScannerError(object? sender, string errorMessage)
        {
            _logger.LogError($"扫码服务错误: {errorMessage}");

            // 这里可以记录错误日志、通知运维等
        }
    }

    public class ScanRequest
    {
        public string ScanCode { get; set; } = string.Empty;
    }
}