Upload files to "backend/services"

backend/services/converter.py

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+import os
+import json
+import subprocess
+from pathlib import Path
+from fastapi import HTTPException
+from config import EPT_DIR
+from services.manifest import save_manifest
+from utils.disk import get_entwine_path
+
+ENTWINE_PATH = get_entwine_path()
+ENTWINE_AVAILABLE = ENTWINE_PATH is not None
+
+def run_entwine(input_path: Path, out_dir: Path) -> dict:
+    if not ENTWINE_AVAILABLE:
+        raise HTTPException(status_code=500,
+            detail="entwine n'est pas installé ou introuvable dans le PATH")
+
+    out_dir.mkdir(parents=True, exist_ok=True)
+
+    # entwine build -i <input> -o <output_dir>
+    cmd = [
+        ENTWINE_PATH, "build",
+        "-i", str(input_path.absolute()),
+        "-o", str(out_dir.absolute()),
+    ]
+
+    print(f"Exécution: {' '.join(cmd)}")
+    print(f"CMD: {cmd}")
+
+    proc = subprocess.run(
+        cmd,
+        stdout=subprocess.PIPE,
+        stderr=subprocess.STDOUT,
+        text=True,
+        check=False,
+        timeout=7200,
+        env=os.environ.copy()
+    )
+
+    if proc.returncode != 0:
+        raise HTTPException(status_code=500,
+            detail=f"entwine failed (code {proc.returncode}):\n{proc.stdout}")
+
+    result = _analyze_ept_output(out_dir, proc.stdout)
+    save_manifest(out_dir, result)
+    return result
+
+
+def _analyze_ept_output(out_dir: Path, entwine_output: str) -> dict:
+    """
+    Entwine produit un dossier EPT dont la structure est :
+        out_dir/
+            ept.json          ← fichier d'entrée principal
+            ept-data/         ← tuiles binaires
+            ept-hierarchy/    ← hiérarchie des noeuds
+    """
+    ept_json = out_dir / "ept.json"
+
+    result = {
+        "format": "ept",
+        "entry_file": None,
+        "entry_type": None,
+        "stdout": entwine_output[-2000:],
+    }
+
+    if ept_json.exists():
+        result["entry_file"] = ept_json.relative_to(EPT_DIR).as_posix()
+        result["entry_type"] = "ept.json"
+        # Le dossier EPT = le dossier contenant ept.json
+        result["ept_dir"] = str(ept_json.parent.relative_to(EPT_DIR))
+    else:
+        raise HTTPException(status_code=500,
+            detail=f"entwine a terminé mais ept.json introuvable dans {out_dir}")
+
+    return result