테마 id로 단건 조회 api 추가 (#306)

Author: asp345

api/src/main/kotlin/handler/TimetableThemeHandler.kt

@@ -45,6 +45,14 @@ class TimetableThemeHandler(
             ListResponse(result)
         }
 
+    suspend fun getTheme(req: ServerRequest) =
+        handle(req) {
+            val userId = req.userId
+            val themeId = req.pathVariable("themeId")
+
+            TimetableThemeDto(timetableThemeService.getTheme(userId, themeId))
+        }
+
     suspend fun addTheme(req: ServerRequest) =
         handle(req) {
             val userId = req.userId

api/src/main/kotlin/router/MainRouter.kt

@@ -265,6 +265,7 @@ class MainRouter(
                 GET("/best", timetableThemeHandler::getBestThemes)
                 GET("/friends", timetableThemeHandler::getFriendsThemes)
                 POST("", timetableThemeHandler::addTheme)
+                GET("/{themeId}", timetableThemeHandler::getTheme)
                 PATCH("/{themeId}", timetableThemeHandler::modifyTheme)
                 DELETE("/{themeId}", timetableThemeHandler::deleteTheme)
                 POST("/{themeId}/copy", timetableThemeHandler::copyTheme)

api/src/main/kotlin/router/docs/ThemeDocs.kt

@@ -91,6 +91,17 @@ import org.springframework.web.bind.annotation.RequestMethod
                 ],
             ),
     ),
+    RouterOperation(
+        path = "/v1/themes/{themeId}",
+        method = [RequestMethod.GET],
+        produces = [MediaType.APPLICATION_JSON_VALUE],
+        operation =
+            Operation(
+                operationId = "getTheme",
+                parameters = [Parameter(`in` = ParameterIn.PATH, name = "themeId", required = true)],
+                responses = [ApiResponse(responseCode = "200", content = [Content(schema = Schema())])],
+            ),
+    ),
     RouterOperation(
         path = "/v1/themes/{themeId}",
         method = [RequestMethod.PATCH],