From 6620f00ee1bbb9960dadfd8bce223488ed741f2e Mon Sep 17 00:00:00 2001
From: "jeonghyo.k" <jhkang@gcsc.co.kr>
Date: Mon, 6 Apr 2026 22:29:21 +0900
Subject: [PATCH] =?UTF-8?q?feat(tiles):=20SR=20=EB=AF=BC=EA=B0=90=EC=9E=90?=
 =?UTF-8?q?=EC=9B=90=20=EB=B2=A1=ED=84=B0=ED=83=80=EC=9D=BC=20=ED=94=84?=
 =?UTF-8?q?=EB=A1=9D=EC=8B=9C=20=EC=97=94=EB=93=9C=ED=8F=AC=EC=9D=B8?=
 =?UTF-8?q?=ED=8A=B8=20=EC=B6=94=EA=B0=80?=
MIME-Version: 1.0
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Martin 서버의 SR 벡터타일, TileJSON, 스타일 JSON을
백엔드 프록시를 통해 제공하는 라우트 추가.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---
 backend/src/routes/tiles.ts | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/backend/src/routes/tiles.ts b/backend/src/routes/tiles.ts
index 0494823..a0ba100 100644
--- a/backend/src/routes/tiles.ts
+++ b/backend/src/routes/tiles.ts
@@ -54,6 +54,28 @@ router.get('/vworld/:z/:y/:x', async (req, res) => {
   await proxyUpstream(tileUrl, res, 'image/jpeg');
 });
 
+// ─── SR 민감자원 벡터타일 ───
+
+// GET /api/tiles/sr/tilejson — SR TileJSON 프록시 (source-layer 메타데이터)
+router.get('/sr/tilejson', async (_req, res) => {
+  await proxyUpstream(`${ENC_UPSTREAM}/sr`, res, 'application/json');
+});
+
+// GET /api/tiles/sr/style — SR 스타일 JSON 프록시 (레이어별 type/paint/layout 정의)
+router.get('/sr/style', async (_req, res) => {
+  await proxyUpstream(`${ENC_UPSTREAM}/style/sr`, res, 'application/json');
+});
+
+// GET /api/tiles/sr/:z/:x/:y — SR(민감자원) 벡터타일 프록시
+router.get('/sr/:z/:x/:y', async (req, res) => {
+  const { z, x, y } = req.params;
+  if (!/^\d+$/.test(z) || !/^\d+$/.test(x) || !/^\d+$/.test(y)) {
+    res.status(400).json({ error: '잘못된 타일 좌표' });
+    return;
+  }
+  await proxyUpstream(`${ENC_UPSTREAM}/sr/${z}/${x}/${y}`, res, 'application/x-protobuf');
+});
+
 // ─── S-57 전자해도 (ENC) ───
 // tiles.gcnautical.com CORS 제한 우회를 위한 프록시 엔드포인트 그룹