feat: 공지 탭 추가

backend/main.py

@@ -501,3 +501,105 @@ def delete_reply(reply_id: int, token=Depends(verify_token), conn=Depends(get_db
     cur.execute("DELETE FROM board_replies WHERE id = %s", (reply_id,))
     conn.commit()
     return {"ok": True}
+
+# ─── 공지사항 ──────────────────────────────────────────────
+class NoticeCreate(BaseModel):
+    title: str
+    content: str
+
+class NoticeReplyCreate(BaseModel):
+    content: str
+
+def init_notice_db():
+    conn = psycopg2.connect(**DB_CONFIG)
+    cur = conn.cursor()
+    cur.execute("""
+        CREATE TABLE IF NOT EXISTS notice_posts (
+            id SERIAL PRIMARY KEY,
+            title VARCHAR(300) NOT NULL,
+            content TEXT NOT NULL,
+            author_id INTEGER REFERENCES users(id) ON DELETE SET NULL,
+            author_name VARCHAR(100) NOT NULL,
+            created_at TIMESTAMP DEFAULT NOW()
+        );
+        CREATE TABLE IF NOT EXISTS notice_replies (
+            id SERIAL PRIMARY KEY,
+            post_id INTEGER REFERENCES notice_posts(id) ON DELETE CASCADE,
+            content TEXT NOT NULL,
+            author_id INTEGER REFERENCES users(id) ON DELETE SET NULL,
+            author_name VARCHAR(100) NOT NULL,
+            created_at TIMESTAMP DEFAULT NOW()
+        );
+    """)
+    conn.commit()
+    cur.close()
+    conn.close()
+
+@app.on_event("startup")
+def startup_notice():
+    import time
+    for _ in range(10):
+        try:
+            init_notice_db()
+            print("Notice DB initialized")
+            break
+        except Exception as e:
+            print(f"Notice DB not ready... {e}")
+            time.sleep(3)
+
+@app.get("/api/notice/posts")
+def list_notice_posts(token=Depends(verify_token), conn=Depends(get_db)):
+    cur = conn.cursor(cursor_factory=psycopg2.extras.RealDictCursor)
+    cur.execute("SELECT id, title, author_name, created_at FROM notice_posts ORDER BY created_at DESC")
+    return cur.fetchall()
+
+@app.post("/api/notice/posts")
+def create_notice_post(data: NoticeCreate, token=Depends(require_admin), conn=Depends(get_db)):
+    cur = conn.cursor(cursor_factory=psycopg2.extras.RealDictCursor)
+    cur.execute(
+        "INSERT INTO notice_posts (title, content, author_id, author_name) VALUES (%s, %s, %s, %s) RETURNING *",
+        (data.title, data.content, int(token["sub"]), token["username"])
+    )
+    conn.commit()
+    return cur.fetchone()
+
+@app.get("/api/notice/posts/{post_id}")
+def get_notice_post(post_id: int, token=Depends(verify_token), conn=Depends(get_db)):
+    cur = conn.cursor(cursor_factory=psycopg2.extras.RealDictCursor)
+    cur.execute("SELECT * FROM notice_posts WHERE id = %s", (post_id,))
+    post = cur.fetchone()
+    if not post:
+        raise HTTPException(status_code=404, detail="Post not found")
+    cur.execute("SELECT * FROM notice_replies WHERE post_id = %s ORDER BY created_at ASC", (post_id,))
+    replies = cur.fetchall()
+    return {"post": post, "replies": replies}
+
+@app.delete("/api/notice/posts/{post_id}")
+def delete_notice_post(post_id: int, token=Depends(require_admin), conn=Depends(get_db)):
+    cur = conn.cursor()
+    cur.execute("DELETE FROM notice_posts WHERE id = %s", (post_id,))
+    conn.commit()
+    return {"ok": True}
+
+@app.post("/api/notice/posts/{post_id}/replies")
+def create_notice_reply(post_id: int, data: NoticeReplyCreate, token=Depends(verify_token), conn=Depends(get_db)):
+    cur = conn.cursor(cursor_factory=psycopg2.extras.RealDictCursor)
+    cur.execute(
+        "INSERT INTO notice_replies (post_id, content, author_id, author_name) VALUES (%s, %s, %s, %s) RETURNING *",
+        (post_id, data.content, int(token["sub"]), token["username"])
+    )
+    conn.commit()
+    return cur.fetchone()
+
+@app.delete("/api/notice/replies/{reply_id}")
+def delete_notice_reply(reply_id: int, token=Depends(verify_token), conn=Depends(get_db)):
+    cur = conn.cursor(cursor_factory=psycopg2.extras.RealDictCursor)
+    cur.execute("SELECT * FROM notice_replies WHERE id = %s", (reply_id,))
+    reply = cur.fetchone()
+    if not reply:
+        raise HTTPException(status_code=404, detail="Reply not found")
+    if not token.get("is_admin") and reply["author_id"] != int(token["sub"]):
+        raise HTTPException(status_code=403, detail="Permission denied")
+    cur.execute("DELETE FROM notice_replies WHERE id = %s", (reply_id,))
+    conn.commit()
+    return {"ok": True}