SPMS.API/Controllers/MaintenanceController.cs

@@ -0,0 +1,28 @@
+using Microsoft.AspNetCore.Mvc;
+using Swashbuckle.AspNetCore.Annotations;
+using SPMS.Application.DTOs.AppConfig;
+using SPMS.Application.Interfaces;
+using SPMS.Domain.Common;
+
+namespace SPMS.API.Controllers;
+
+[ApiController]
+[Route("v1/in/public")]
+[ApiExplorerSettings(GroupName = "public")]
+public class MaintenanceController : ControllerBase
+{
+    private readonly IAppConfigService _appConfigService;
+
+    public MaintenanceController(IAppConfigService appConfigService)
+    {
+        _appConfigService = appConfigService;
+    }
+
+    [HttpPost("maintenance")]
+    [SwaggerOperation(Summary = "점검 안내", Description = "현재 서비스 점검 상태를 조회합니다.")]
+    public async Task<IActionResult> GetMaintenanceAsync()
+    {
+        var result = await _appConfigService.GetMaintenanceAsync();
+        return Ok(ApiResponse<MaintenanceResponseDto>.Success(result));
+    }
+}

SPMS.Application/DTOs/AppConfig/MaintenanceResponseDto.cs

@@ -0,0 +1,15 @@
+using System.Text.Json.Serialization;
+
+namespace SPMS.Application.DTOs.AppConfig;
+
+public class MaintenanceResponseDto
+{
+    [JsonPropertyName("is_maintenance")]
+    public bool IsMaintenance { get; set; }
+
+    [JsonPropertyName("maintenance_msg")]
+    public string? MaintenanceMsg { get; set; }
+
+    [JsonPropertyName("estimated_end_time")]
+    public string? EstimatedEndTime { get; set; }
+}

SPMS.Application/Interfaces/IAppConfigService.cs

@@ -8,4 +8,5 @@ public interface IAppConfigService
     Task<AppConfigResponseDto> GetPrivacyAsync();
     Task<AppVersionResponseDto> GetAppVersionAsync(AppVersionRequestDto request);
     Task<AppSettingsResponseDto> GetAppSettingsAsync();
+    Task<MaintenanceResponseDto> GetMaintenanceAsync();
 }

SPMS.Application/Services/AppConfigService.cs

@@ -57,4 +57,18 @@ public class AppConfigService : IAppConfigService
             CsPhone = configDict.GetValueOrDefault("cs_phone")
         };
     }
+
+    public async Task<MaintenanceResponseDto> GetMaintenanceAsync()
+    {
+        var maintenanceMode = await _appConfigRepository.GetByKeyAsync("maintenance_mode");
+        var maintenanceMessage = await _appConfigRepository.GetByKeyAsync("maintenance_message");
+        var maintenanceEndTime = await _appConfigRepository.GetByKeyAsync("maintenance_end_time");
+
+        return new MaintenanceResponseDto
+        {
+            IsMaintenance = string.Equals(maintenanceMode?.ConfigValue, "true", StringComparison.OrdinalIgnoreCase),
+            MaintenanceMsg = maintenanceMessage?.ConfigValue,
+            EstimatedEndTime = maintenanceEndTime?.ConfigValue
+        };
+    }
 }