SPMS_API/SPMS.API/Controllers/StatsController.cs

using Microsoft.AspNetCore.Mvc;
using Swashbuckle.AspNetCore.Annotations;
using SPMS.Application.DTOs.Stats;
using SPMS.Application.Interfaces;
using SPMS.Domain.Common;

namespace SPMS.API.Controllers;

[ApiController]
[Route("v1/in/stats")]
[ApiExplorerSettings(GroupName = "stats")]
public class StatsController : ControllerBase
{
    private readonly IStatsService _statsService;

    public StatsController(IStatsService statsService)
    {
        _statsService = statsService;
    }

    [HttpPost("daily")]
    [SwaggerOperation(Summary = "일별 통계 조회", Description = "기간별 일별 발송/성공/실패/열람 통계를 조회합니다.")]
    public async Task<IActionResult> GetDailyAsync([FromBody] DailyStatRequestDto request)
    {
        var serviceId = GetServiceId();
        var result = await _statsService.GetDailyAsync(serviceId, request);
        return Ok(ApiResponse<DailyStatResponseDto>.Success(result, "조회 성공"));
    }

    [HttpPost("summary")]
    [SwaggerOperation(Summary = "요약 통계 조회", Description = "대시보드 요약 통계를 조회합니다.")]
    public async Task<IActionResult> GetSummaryAsync()
    {
        var serviceId = GetServiceId();
        var result = await _statsService.GetSummaryAsync(serviceId);
        return Ok(ApiResponse<SummaryStatResponseDto>.Success(result, "조회 성공"));
    }

    [HttpPost("message")]
    [SwaggerOperation(Summary = "메시지별 통계 조회", Description = "특정 메시지의 발송 통계를 조회합니다.")]
    public async Task<IActionResult> GetMessageStatAsync([FromBody] MessageStatRequestDto request)
    {
        var serviceId = GetServiceId();
        var result = await _statsService.GetMessageStatAsync(serviceId, request);
        return Ok(ApiResponse<MessageStatResponseDto>.Success(result, "조회 성공"));
    }

    [HttpPost("hourly")]
    [SwaggerOperation(Summary = "시간대별 통계 조회", Description = "시간대별 발송 추이를 조회합니다.")]
    public async Task<IActionResult> GetHourlyAsync([FromBody] HourlyStatRequestDto request)
    {
        var serviceId = GetServiceId();
        var result = await _statsService.GetHourlyAsync(serviceId, request);
        return Ok(ApiResponse<HourlyStatResponseDto>.Success(result, "조회 성공"));
    }

    [HttpPost("device")]
    [SwaggerOperation(Summary = "디바이스 통계 조회", Description = "플랫폼/모델별 디바이스 분포를 조회합니다.")]
    public async Task<IActionResult> GetDeviceStatAsync()
    {
        var serviceId = GetServiceId();
        var result = await _statsService.GetDeviceStatAsync(serviceId);
        return Ok(ApiResponse<DeviceStatResponseDto>.Success(result, "조회 성공"));
    }

    [HttpPost("export")]
    [SwaggerOperation(Summary = "통계 리포트 다운로드", Description = "일별/시간대별/플랫폼별 통계를 엑셀(.xlsx) 파일로 다운로드합니다.")]
    public async Task<IActionResult> ExportReportAsync([FromBody] StatsExportRequestDto request)
    {
        var serviceId = GetServiceId();
        var fileBytes = await _statsService.ExportReportAsync(serviceId, request);
        var fileName = $"stats_report_{request.StartDate}_{request.EndDate}.xlsx";
        return File(fileBytes, "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet", fileName);
    }

    [HttpPost("send-log")]
    [SwaggerOperation(Summary = "발송 상세 로그 조회", Description = "특정 메시지의 개별 디바이스별 발송 상세 로그를 조회합니다.")]
    public async Task<IActionResult> GetSendLogDetailAsync([FromBody] SendLogDetailRequestDto request)
    {
        var serviceId = GetServiceId();
        var result = await _statsService.GetSendLogDetailAsync(serviceId, request);
        return Ok(ApiResponse<SendLogDetailResponseDto>.Success(result, "조회 성공"));
    }

    private long GetServiceId()
    {
        if (HttpContext.Items.TryGetValue("ServiceId", out var serviceIdObj) && serviceIdObj is long serviceId)
            return serviceId;

        throw new Domain.Exceptions.SpmsException(ErrorCodes.BadRequest, "서비스 식별 정보가 없습니다.", 400);
    }
}