before gemiin

backend/app/routers/settings.py

@@ -1,18 +1,28 @@
 import os
 import shutil
 import time
+import json
+import tempfile
+import zipfile
+from datetime import datetime, timezone
+from pathlib import Path
 from typing import Any
 
 from fastapi import APIRouter, Depends
+from fastapi.responses import FileResponse
+from starlette.background import BackgroundTask
 from sqlmodel import Session, select
 from app.database import get_session
 from app.models.settings import UserSettings
-from app.config import UPLOAD_DIR
+from app.config import DATABASE_URL, UPLOAD_DIR
 
 router = APIRouter(tags=["réglages"])
 
 _PREV_CPU_USAGE_USEC: int | None = None
 _PREV_CPU_TS: float | None = None
+_TEXT_EXTENSIONS = {
+    ".txt", ".md", ".markdown", ".json", ".csv", ".log", ".ini", ".yaml", ".yml", ".xml"
+}
 
 
 def _read_int_from_paths(paths: list[str]) -> int | None:
@@ -113,6 +123,68 @@ def _disk_stats() -> dict[str, Any]:
     }
 
 
+def _safe_remove(path: str) -> None:
+    try:
+        os.remove(path)
+    except OSError:
+        pass
+
+
+def _resolve_sqlite_db_path() -> Path | None:
+    prefix = "sqlite:///"
+    if not DATABASE_URL.startswith(prefix):
+        return None
+    raw = DATABASE_URL[len(prefix):]
+    if not raw:
+        return None
+    db_path = Path(raw)
+    if db_path.is_absolute():
+        return db_path
+    return (Path.cwd() / db_path).resolve()
+
+
+def _zip_directory(zipf: zipfile.ZipFile, source_dir: Path, arc_prefix: str) -> int:
+    count = 0
+    if not source_dir.is_dir():
+        return count
+    for root, _, files in os.walk(source_dir):
+        root_path = Path(root)
+        for name in files:
+            file_path = root_path / name
+            if not file_path.is_file():
+                continue
+            rel = file_path.relative_to(source_dir)
+            arcname = str(Path(arc_prefix) / rel)
+            zipf.write(file_path, arcname=arcname)
+            count += 1
+    return count
+
+
+def _zip_data_text_files(
+    zipf: zipfile.ZipFile,
+    data_root: Path,
+    db_path: Path | None,
+    uploads_dir: Path,
+) -> int:
+    count = 0
+    if not data_root.is_dir():
+        return count
+    for root, _, files in os.walk(data_root):
+        root_path = Path(root)
+        for name in files:
+            file_path = root_path / name
+            if db_path and file_path == db_path:
+                continue
+            if uploads_dir in file_path.parents:
+                continue
+            if file_path.suffix.lower() not in _TEXT_EXTENSIONS:
+                continue
+            rel = file_path.relative_to(data_root)
+            zipf.write(file_path, arcname=str(Path("data_text") / rel))
+            count += 1
+    return count
+
+
 @router.get("/settings")
 def get_settings(session: Session = Depends(get_session)):
     rows = session.exec(select(UserSettings)).all()
@@ -161,3 +233,51 @@ def get_debug_system_stats() -> dict[str, Any]:
         "memory": _memory_stats(),
         "disk": _disk_stats(),
     }
+
+
+@router.get("/settings/backup/download")
+def download_backup_zip() -> FileResponse:
+    now = datetime.now(timezone.utc)
+    ts = now.strftime("%Y%m%d_%H%M%S")
+    db_path = _resolve_sqlite_db_path()
+    uploads_dir = Path(UPLOAD_DIR).resolve()
+    data_root = db_path.parent if db_path else uploads_dir.parent
+
+    fd, tmp_zip_path = tempfile.mkstemp(prefix=f"jardin_backup_{ts}_", suffix=".zip")
+    os.close(fd)
+    tmp_zip = Path(tmp_zip_path)
+
+    stats = {
+        "database_files": 0,
+        "upload_files": 0,
+        "text_files": 0,
+    }
+
+    with zipfile.ZipFile(tmp_zip, mode="w", compression=zipfile.ZIP_DEFLATED, compresslevel=6) as zipf:
+        if db_path and db_path.is_file():
+            zipf.write(db_path, arcname=f"db/{db_path.name}")
+            stats["database_files"] = 1
+
+        stats["upload_files"] = _zip_directory(zipf, uploads_dir, "uploads")
+        stats["text_files"] = _zip_data_text_files(zipf, data_root, db_path, uploads_dir)
+
+        manifest = {
+            "generated_at_utc": now.isoformat(),
+            "database_url": DATABASE_URL,
+            "paths": {
+                "database_path": str(db_path) if db_path else None,
+                "uploads_path": str(uploads_dir),
+                "data_root": str(data_root),
+            },
+            "included": stats,
+            "text_extensions": sorted(_TEXT_EXTENSIONS),
+        }
+        zipf.writestr("manifest.json", json.dumps(manifest, ensure_ascii=False, indent=2))
+
+    download_name = f"jardin_backup_{ts}.zip"
+    return FileResponse(
+        path=str(tmp_zip),
+        media_type="application/zip",
+        filename=download_name,
+        background=BackgroundTask(_safe_remove, str(tmp_zip)),
+    )