Add files via upload

app/backend/scripts_format.py

@@ -0,0 +1,94 @@
+import ast
+import platform
+import subprocess
+import urllib.request
+import zipfile
+import io
+from pathlib import Path
+
+PROJECT_DIR = Path(__file__).parent.parent
+BIN_DIR = PROJECT_DIR / "bin"
+
+STYLUA_VERSION = "0.20.0"
+STYLUA_URL = (
+    f"https://github.com/JohnnyMorganz/StyLua/releases/download/v{STYLUA_VERSION}/"
+    f"stylua-windows-x86_64.zip"
+)
+
+
+def format_python(code: str) -> dict:
+    try:
+        ast.parse(code)
+    except SyntaxError as e:
+        return {
+            "ok": False,
+            "error": f"SyntaxError: {e.msg}",
+            "line": e.lineno,
+            "formatted": code,
+        }
+
+    try:
+        import black
+        formatted = black.format_str(code, mode=black.Mode())
+        return {"ok": True, "error": None, "line": None, "formatted": formatted}
+    except Exception as e:
+        return {"ok": False, "error": str(e), "line": None, "formatted": code}
+
+
+def _stylua_exe() -> Path:
+    return BIN_DIR / ("stylua.exe" if platform.system() == "Windows" else "stylua")
+
+
+def _ensure_stylua() -> Path | None:
+    exe = _stylua_exe()
+    if exe.exists():
+        return exe
+
+    if platform.system() != "Windows":
+        return None
+
+    BIN_DIR.mkdir(parents=True, exist_ok=True)
+    try:
+        with urllib.request.urlopen(STYLUA_URL, timeout=30) as resp:
+            data = resp.read()
+        with zipfile.ZipFile(io.BytesIO(data)) as zf:
+            for name in zf.namelist():
+                if Path(name).name.lower() == "stylua.exe":
+                    exe.write_bytes(zf.read(name))
+                    return exe
+    except Exception:
+        return None
+    return None
+
+
+def format_lua(code: str) -> dict:
+    exe = _ensure_stylua()
+    if not exe:
+        return {
+            "ok": False,
+            "error": "stylua не удалось скачать автоматически — проверь интернет или положи stylua.exe в bin\\ вручную.",
+            "line": None,
+            "formatted": code,
+        }
+
+    try:
+        result = subprocess.run(
+            [str(exe), "-"],
+            input=code,
+            capture_output=True,
+            text=True,
+            timeout=15,
+        )
+        if result.returncode != 0:
+            return {"ok": False, "error": result.stderr.strip(), "line": None, "formatted": code}
+        return {"ok": True, "error": None, "line": None, "formatted": result.stdout}
+    except Exception as e:
+        return {"ok": False, "error": str(e), "line": None, "formatted": code}
+
+
+def format_code(code: str, language: str) -> dict:
+    if language == "python":
+        return format_python(code)
+    if language == "lua":
+        return format_lua(code)
+    return {"ok": False, "error": f"unsupported language: {language}", "line": None, "formatted": code}