using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Swashbuckle.AspNetCore.Annotations;
using SPMS.Application.DTOs.Notification;
using SPMS.Application.Interfaces;
using SPMS.Domain.Common;
using SPMS.Domain.Exceptions;

namespace SPMS.API.Controllers;

[ApiController]
[Route("v1/in/notification")]
[Authorize]
[ApiExplorerSettings(GroupName = "notification")]
public class NotificationController : ControllerBase
{
    private readonly INotificationService _notificationService;

    public NotificationController(INotificationService notificationService)
    {
        _notificationService = notificationService;
    }

    [HttpPost("summary")]
    [SwaggerOperation(Summary = "알림 요약 조회", Description = "최근 N건의 알림과 미읽 건수를 반환합니다. 헤더 뱃지용.")]
    public async Task<IActionResult> GetSummaryAsync([FromBody] NotificationSummaryRequestDto request)
    {
        var adminId = GetAdminId();
        var result = await _notificationService.GetSummaryAsync(adminId, request);
        return Ok(ApiResponse<NotificationSummaryResponseDto>.Success(result));
    }

    [HttpPost("list")]
    [SwaggerOperation(Summary = "알림 목록 조회", Description = "알림 목록을 페이지 단위로 조회합니다. 카테고리/기간/읽음 필터를 지원합니다.")]
    public async Task<IActionResult> GetListAsync([FromBody] NotificationListRequestDto request)
    {
        var adminId = GetAdminId();
        var result = await _notificationService.GetListAsync(adminId, request);
        return Ok(ApiResponse<NotificationListResponseDto>.Success(result));
    }

    [HttpPost("read")]
    [SwaggerOperation(Summary = "알림 읽음 처리", Description = "단건 알림을 읽음 처리합니다. 이미 읽은 알림은 무시(멱등).")]
    public async Task<IActionResult> MarkAsReadAsync([FromBody] NotificationReadRequestDto request)
    {
        var adminId = GetAdminId();
        var result = await _notificationService.MarkAsReadAsync(adminId, request);
        return Ok(ApiResponse<NotificationReadResponseDto>.Success(result));
    }

    [HttpPost("read-all")]
    [SwaggerOperation(Summary = "알림 전체 읽음", Description = "해당 관리자의 모든 미읽 알림을 일괄 읽음 처리합니다.")]
    public async Task<IActionResult> MarkAllAsReadAsync()
    {
        var adminId = GetAdminId();
        var result = await _notificationService.MarkAllAsReadAsync(adminId);
        return Ok(ApiResponse<NotificationReadResponseDto>.Success(result));
    }

    private long GetAdminId()
    {
        var adminIdClaim = User.FindFirst("adminId")?.Value;
        if (string.IsNullOrEmpty(adminIdClaim) || !long.TryParse(adminIdClaim, out var adminId))
            throw new SpmsException(ErrorCodes.Unauthorized, "인증 정보가 올바르지 않습니다.", 401);

        return adminId;
    }
}