using Microsoft.AspNetCore.Mvc;
using GreenHome.Application;

namespace GreenHome.Api.Controllers;

[ApiController]
[Route("api/[controller]")]
public class MonthlyReportController : ControllerBase
{
    private readonly IMonthlyReportService _monthlyReportService;
    private readonly ILogger<MonthlyReportController> _logger;

    public MonthlyReportController(
        IMonthlyReportService monthlyReportService,
        ILogger<MonthlyReportController> logger)
    {
        _monthlyReportService = monthlyReportService;
        _logger = logger;
    }

    /// <summary>
    /// دریافت گزارش آماری ماهانه
    /// </summary>
    [HttpGet]
    public async Task<ActionResult<MonthlyReportDto>> GetMonthlyReport(
        [FromQuery] int deviceId,
        [FromQuery] int year,
        [FromQuery] int month,
        CancellationToken cancellationToken)
    {
        try
        {
            if (deviceId <= 0)
            {
                return BadRequest(new { error = "شناسه دستگاه نامعتبر است" });
            }

            if (month < 1 || month > 12)
            {
                return BadRequest(new { error = "ماه باید بین 1 تا 12 باشد" });
            }

            var result = await _monthlyReportService.GetMonthlyReportAsync(deviceId, year, month, cancellationToken);
            
            _logger.LogInformation(
                "گزارش ماهانه برای دستگاه {DeviceId} و ماه {Month}/{Year} ایجاد شد",
                deviceId, month, year);

            return Ok(result);
        }
        catch (InvalidOperationException ex)
        {
            return NotFound(new { error = ex.Message });
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "Error generating monthly report");
            return StatusCode(500, new { error = "خطا در ایجاد گزارش ماهانه" });
        }
    }
}