feat: 앱 버전 체크 API 구현 (#86)

Reviewed-on: https://git.ipstein.myds.me/SPMS/SPMS_API/pulls/87

SPMS.API/Controllers/AppVersionController.cs

@@ -0,0 +1,32 @@
+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/app")]
+[ApiExplorerSettings(GroupName = "public")]
+public class AppVersionController : ControllerBase
+{
+    private readonly IAppConfigService _appConfigService;
+
+    public AppVersionController(IAppConfigService appConfigService)
+    {
+        _appConfigService = appConfigService;
+    }
+
+    [HttpPost("version")]
+    [SwaggerOperation(Summary = "앱 버전 체크", Description = "현재 앱 버전 정보를 확인하고 업데이트 필요 여부를 반환합니다.")]
+    public async Task<IActionResult> CheckVersionAsync([FromBody] AppVersionRequestDto request)
+    {
+        var serviceCode = Request.Headers["X-Service-Code"].FirstOrDefault();
+        if (string.IsNullOrWhiteSpace(serviceCode))
+            return BadRequest(ApiResponse.Fail(ErrorCodes.BadRequest, "X-Service-Code 헤더가 필요합니다."));
+
+        var result = await _appConfigService.GetAppVersionAsync(serviceCode, request);
+        return Ok(ApiResponse<AppVersionResponseDto>.Success(result));
+    }
+}

SPMS.Application/DTOs/AppConfig/AppVersionRequestDto.cs

@@ -0,0 +1,12 @@
+using System.Text.Json.Serialization;
+
+namespace SPMS.Application.DTOs.AppConfig;
+
+public class AppVersionRequestDto
+{
+    [JsonPropertyName("platform")]
+    public string Platform { get; set; } = string.Empty;
+
+    [JsonPropertyName("app_version")]
+    public string AppVersion { get; set; } = string.Empty;
+}

SPMS.Application/DTOs/AppConfig/AppVersionResponseDto.cs

@@ -0,0 +1,18 @@
+using System.Text.Json.Serialization;
+
+namespace SPMS.Application.DTOs.AppConfig;
+
+public class AppVersionResponseDto
+{
+    [JsonPropertyName("latest_version")]
+    public string? LatestVersion { get; set; }
+
+    [JsonPropertyName("min_version")]
+    public string? MinVersion { get; set; }
+
+    [JsonPropertyName("is_force_update")]
+    public bool IsForceUpdate { get; set; }
+
+    [JsonPropertyName("update_url")]
+    public string? UpdateUrl { get; set; }
+}

SPMS.Application/Interfaces/IAppConfigService.cs

@@ -6,4 +6,5 @@ public interface IAppConfigService
 {
     Task<AppConfigResponseDto> GetTermsAsync(string serviceCode);
     Task<AppConfigResponseDto> GetPrivacyAsync(string serviceCode);
+    Task<AppVersionResponseDto> GetAppVersionAsync(string serviceCode, AppVersionRequestDto request);
 }

SPMS.Application/Services/AppConfigService.cs

@@ -27,6 +27,28 @@ public class AppConfigService : IAppConfigService
         return await GetConfigUrlAsync(serviceCode, "privacy_url");
     }
 
+    public async Task<AppVersionResponseDto> GetAppVersionAsync(string serviceCode, AppVersionRequestDto request)
+    {
+        var service = await _serviceRepository.GetByServiceCodeAsync(serviceCode);
+        if (service == null)
+            throw new SpmsException(ErrorCodes.NotFound, "존재하지 않는 서비스입니다.", 404);
+
+        var latestVersion = await _appConfigRepository.GetByKeyAsync(service.Id, "latest_version");
+        var minVersion = await _appConfigRepository.GetByKeyAsync(service.Id, "min_version");
+        var forceUpdate = await _appConfigRepository.GetByKeyAsync(service.Id, "force_update");
+
+        var updateUrlKey = request.Platform?.ToLowerInvariant() == "ios" ? "update_url_ios" : "update_url_android";
+        var updateUrl = await _appConfigRepository.GetByKeyAsync(service.Id, updateUrlKey);
+
+        return new AppVersionResponseDto
+        {
+            LatestVersion = latestVersion?.ConfigValue,
+            MinVersion = minVersion?.ConfigValue,
+            IsForceUpdate = string.Equals(forceUpdate?.ConfigValue, "true", StringComparison.OrdinalIgnoreCase),
+            UpdateUrl = updateUrl?.ConfigValue
+        };
+    }
+
     private async Task<AppConfigResponseDto> GetConfigUrlAsync(string serviceCode, string configKey)
     {
         var service = await _serviceRepository.GetByServiceCodeAsync(serviceCode);