#!/usr/bin/env python3
"""
Lit sync_all_done.json, lance les imports PDF → DB, écrit sync_last_result.json.
Lancé comme subprocess indépendant par reset_sync (start_new_session=True).
Args: <data_dir> <username> <force_abs:0|1>
"""
import json, sys
from pathlib import Path
from datetime import datetime

_ROOT = Path(__file__).resolve().parent.parent
sys.path.insert(0, str(_ROOT))

DATA_DIR  = Path(sys.argv[1]) if len(sys.argv) > 1 else _ROOT / "data"
USERNAME  = sys.argv[2] if len(sys.argv) > 2 else "escada"
FORCE_ABS = len(sys.argv) > 3 and sys.argv[3] == "1"
ALL_DONE  = DATA_DIR / "sync_all_done.json"
RESULT    = DATA_DIR / "sync_last_result.json"

from src.logger import app_log

app_log("[run_imports] démarré")

try:
    raw     = json.loads(ALL_DONE.read_text(encoding="utf-8"))
    payload = raw.get("payload", {})
except Exception as e:
    app_log(f"[run_imports] ERREUR lecture all_done: {e}")
    sys.exit(1)

from src.db import get_session
from src.importer import import_pdf as do_import
from src.importer_bn import import_bn as do_import_bn
from src.importer_matu import import_matu as do_import_matu
from src.importer_notes import import_notes_pdf
from src.db import Apprenti, EscadaPending, upsert_apprenti_fiche, _norm_prenom
from sqlalchemy import select

abs_pdfs   = payload.get("abs", [])
bn_pdfs    = payload.get("bn", [])
matu_pdfs  = payload.get("matu", [])
notes_pdfs = payload.get("notes", [])
fiches     = payload.get("fiches", {})
errors     = list(payload.get("errors", []))

res_abs = []
for pdf_path in abs_pdfs:
    sess = get_session()
    try:
        r = do_import(Path(pdf_path), sess, imported_by=USERNAME, force=FORCE_ABS)
        detail = f"{r.nb_absences_nouvelles} nouvelles"
        if r.nb_absences_mises_a_jour:
            detail += f", {r.nb_absences_mises_a_jour} maj"
        if r.nb_absences_pending_skipped:
            detail += f", {r.nb_absences_pending_skipped} pending"
        res_abs.append({
            "classe":          r.classe,
            "detail":          detail,
            "nouvelles":       r.nb_absences_nouvelles,
            "mises_a_jour":    r.nb_absences_mises_a_jour,
            "pending_skipped": r.nb_absences_pending_skipped,
            "doublons":        r.nb_absences_doublons,
        })
        app_log(f"[run_imports] abs {r.classe}: {detail}")
    except Exception as e:
        errors.append(f"Import abs {Path(pdf_path).name}: {e}")
        app_log(f"[run_imports] erreur abs: {e}")
    finally:
        sess.close()

res_bn = []
for pdf_path in bn_pdfs:
    sess = get_session()
    try:
        r = do_import_bn(Path(pdf_path), sess, imported_by=USERNAME)
        res_bn.append({"classe": r.classe, "nb": str(r.nb_apprentis)})
        app_log(f"[run_imports] BN {r.classe}: {r.nb_apprentis}")
    except Exception as e:
        errors.append(f"Import BN {Path(pdf_path).name}: {e}")
        app_log(f"[run_imports] erreur BN: {e}")
    finally:
        sess.close()

res_notes = []
for pdf_path in notes_pdfs:
    sess = get_session()
    try:
        r = import_notes_pdf(Path(pdf_path), sess)
        res_notes.append({"classe": r["classe"], "nb": str(r["nb"])})
        app_log(f"[run_imports] notes {r['classe']}: {r['nb']} apprenti(s)")
    except Exception as e:
        errors.append(f"Import notes {Path(pdf_path).name}: {e}")
        app_log(f"[run_imports] erreur notes: {e}")
    finally:
        sess.close()

res_matu = []
for pdf_path in matu_pdfs:
    sess = get_session()
    try:
        r, unmatched = do_import_matu(Path(pdf_path), sess, imported_by=USERNAME)
        res_matu.append({
            "classe":    r.classe_mp or Path(pdf_path).stem,
            "nb":        str(r.nb_apprentis),
            "unmatched": ", ".join(unmatched) if unmatched else "",
        })
        app_log(f"[run_imports] matu {r.classe_mp}: {r.nb_apprentis}")
    except Exception as e:
        errors.append(f"Import matu {Path(pdf_path).name}: {e}")
        app_log(f"[run_imports] erreur matu: {e}")
    finally:
        sess.close()

if fiches:
    sess = get_session()
    try:
        for cls, fiches_list in fiches.items():
            cls_apprentis = sess.execute(
                select(Apprenti).where(Apprenti.classe == cls)
            ).scalars().all()
            for fiche in fiches_list:
                nom_eleve = fiche.get("nom_eleve", "")
                if not nom_eleve:
                    continue
                nom_norm = _norm_prenom(nom_eleve)
                ap = None
                for a in cls_apprentis:
                    full_norm = _norm_prenom(f"{a.nom} {a.prenom}")
                    if full_norm == nom_norm or full_norm.startswith(nom_norm + " "):
                        ap = a
                        break
                if ap:
                    upsert_apprenti_fiche(sess, ap.id, fiche)
        sess.commit()
        app_log(f"[run_imports] fiches: {sum(len(v) for v in fiches.values())} entrées")
    except Exception as e:
        errors.append(f"Import fiches: {e}")
        sess.rollback()
        app_log(f"[run_imports] erreur fiches: {e}")
    finally:
        sess.close()

result = {
    "timestamp": datetime.now().isoformat(),
    "res_abs":   res_abs,
    "res_bn":    res_bn,
    "res_notes": res_notes,
    "res_matu":  res_matu,
    "errors":    errors,
    "op_log":    "",
}

try:
    DATA_DIR.mkdir(parents=True, exist_ok=True)
    RESULT.write_text(json.dumps(result, ensure_ascii=False), encoding="utf-8")
    app_log(f"[run_imports] résultats sauvegardés — notes={len(res_notes)} abs={len(res_abs)} erreurs={len(errors)}")
except Exception as e:
    app_log(f"[run_imports] ERREUR sauvegarde: {e}")
    sys.exit(1)

app_log("[run_imports] terminé OK")