#!/usr/bin/env python3
"""
record_and_build.py — Script démo Phase 1

Enregistre une session RPA (screenshots + événements clavier/souris)
puis construit un Workflow automatiquement via le GraphBuilder.

Usage:
    # Enregistrer une session (Ctrl+C pour arrêter)
    python scripts/record_and_build.py record --name "login_workflow"

    # Construire un workflow depuis une session existante
    python scripts/record_and_build.py build --session data/training/sessions/session_xxx

    # Enregistrer ET construire
    python scripts/record_and_build.py full --name "login_workflow"

    # Lister les sessions enregistrées
    python scripts/record_and_build.py list
"""

import argparse
import json
import logging
import signal
import sys
import time
from datetime import datetime
from pathlib import Path

# Ajouter la racine du projet au path
ROOT = Path(__file__).resolve().parent.parent
sys.path.insert(0, str(ROOT))

# Vérifier que le venv est activé (éviter les erreurs silencieuses)
_venv_path = ROOT / ".venv" / "bin" / "python"
if _venv_path.exists() and _venv_path.resolve() != Path(sys.executable).resolve():
    print(f"ATTENTION : le venv n'est pas activé.")
    print(f"  Lancer avec : source .venv/bin/activate && python {' '.join(sys.argv)}")
    print(f"  Ou directement : .venv/bin/python {' '.join(sys.argv)}")
    sys.exit(1)

from core.models.raw_session import RawSession
from core.capture.session_recorder import SessionRecorder

logging.basicConfig(
    level=logging.INFO,
    format="%(asctime)s [%(levelname)s] %(name)s: %(message)s",
    datefmt="%H:%M:%S",
)
logger = logging.getLogger("record_and_build")


# =========================================================================
# Commandes
# =========================================================================


def cmd_record(args) -> str:
    """Enregistrer une session."""
    recorder = SessionRecorder(
        output_dir=args.output_dir,
        screenshot_on_click=True,
        screenshot_interval_ms=args.interval,
    )

    session_id = recorder.start(workflow_name=args.name)

    print(f"\n{'='*60}")
    print(f"  Enregistrement en cours : {session_id}")
    print(f"  Workflow : {args.name or '(non nommé)'}")
    print(f"  Screenshots sur clic : oui")
    if args.interval > 0:
        print(f"  Screenshots périodiques : {args.interval}ms")
    print(f"{'='*60}")
    print(f"  Effectuez vos actions... Appuyez sur Ctrl+C pour arrêter.")
    print(f"{'='*60}\n")

    # Afficher les events en temps réel
    def on_event(raw_event):
        etype = raw_event.get("type", "?")
        t = raw_event.get("t", 0)
        if etype == "mouse_click":
            pos = raw_event.get("pos", [0, 0])
            btn = raw_event.get("button", "?")
            print(f"  [{t:7.2f}s] CLIC {btn} @ ({pos[0]}, {pos[1]})")
        elif etype in ("key_press",):
            keys = raw_event.get("keys", [])
            print(f"  [{t:7.2f}s] TOUCHE {' '.join(keys)}")

    def on_screenshot(path):
        count = recorder.screenshot_count
        print(f"           -> Screenshot #{count} sauvegardé")

    recorder._on_event = on_event
    recorder._on_screenshot = on_screenshot

    # Attendre Ctrl+C
    stop_event = False

    def signal_handler(sig, frame):
        nonlocal stop_event
        stop_event = True

    signal.signal(signal.SIGINT, signal_handler)

    while not stop_event:
        time.sleep(0.2)

    session = recorder.stop()

    print(f"\n{'='*60}")
    print(f"  Session terminée : {session.session_id}")
    print(f"  Events    : {len(session.events)}")
    print(f"  Screenshots: {len(session.screenshots)}")
    print(f"  Durée     : {(session.ended_at - session.started_at).total_seconds():.1f}s")
    session_dir = Path(args.output_dir) / session.session_id
    print(f"  Dossier   : {session_dir}")
    print(f"{'='*60}\n")

    return str(session_dir)


def cmd_build(args) -> None:
    """Construire un workflow depuis une session existante."""
    session_dir = Path(args.session)

    # Trouver le fichier JSON de session
    json_files = list(session_dir.glob("*.json"))
    if not json_files:
        print(f"Erreur : aucun fichier JSON trouvé dans {session_dir}")
        sys.exit(1)

    session_path = json_files[0]
    print(f"Chargement de la session : {session_path}")

    session = RawSession.load_from_file(session_path)
    print(
        f"Session {session.session_id} : "
        f"{len(session.events)} events, {len(session.screenshots)} screenshots"
    )

    if not session.screenshots:
        print("Erreur : la session n'a aucun screenshot. Impossible de construire un workflow.")
        sys.exit(1)

    # Construire le workflow
    print("\nConstruction du workflow...")
    print("  Initialisation des composants (CLIP, FAISS, DBSCAN)...")

    from core.graph.graph_builder import GraphBuilder

    # min_pattern_repetitions adaptatif :
    #   < 10 screenshots → 2 (exploration)
    #   10-30 screenshots → 3
    #   > 30 screenshots → min(5, n//10)
    n = len(session.screenshots)
    if n < 10:
        min_reps = 2
    elif n <= 30:
        min_reps = 3
    else:
        min_reps = min(5, n // 10)

    builder = GraphBuilder(
        min_pattern_repetitions=min_reps,
        clustering_eps=0.15,
        clustering_min_samples=2,
        enable_quality_validation=True,
    )
    print(f"  min_pattern_repetitions={min_reps} (pour {n} screenshots)")

    workflow_name = args.name or f"workflow_{session.session_id}"
    workflow = builder.build_from_session(session, workflow_name)

    print(f"\n{'='*60}")
    print(f"  Workflow construit : {workflow.name}")
    print(f"  Nodes  : {len(workflow.nodes)}")
    print(f"  Edges  : {len(workflow.edges)}")
    print(f"  État   : {workflow.learning_state}")

    if workflow.metadata and "quality_report" in workflow.metadata:
        qr = workflow.metadata["quality_report"]
        print(f"  Qualité: {qr.get('overall_score', 0):.2%}")
        print(f"  Prod OK: {qr.get('is_production_ready', False)}")

    print(f"\n  Nodes :")
    for node in workflow.nodes:
        title = ""
        if node.template and node.template.window:
            title = node.template.window.title_pattern or ""
        obs = node.metadata.get("observation_count", "?")
        print(f"    - {node.node_id}: {node.name} [{title}] ({obs} obs)")

    print(f"\n  Edges :")
    for edge in workflow.edges:
        action_type = edge.action.type if edge.action else "?"
        count = edge.stats.execution_count if edge.stats else 0
        print(f"    - {edge.from_node} → {edge.to_node} [{action_type}] (×{count})")

    # Sauvegarder le workflow
    workflow_path = session_dir / f"{workflow.workflow_id}.json"
    try:
        with open(workflow_path, "w", encoding="utf-8") as f:
            f.write(workflow.to_json())
        print(f"\n  Workflow sauvegardé : {workflow_path}")
    except Exception as e:
        print(f"\n  Erreur sauvegarde : {e}")

    print(f"{'='*60}\n")


def cmd_full(args) -> None:
    """Enregistrer puis construire."""
    session_dir = cmd_record(args)
    args.session = session_dir
    cmd_build(args)


def cmd_list(args) -> None:
    """Lister les sessions enregistrées."""
    sessions_dir = Path(args.output_dir)
    if not sessions_dir.exists():
        print(f"Aucune session trouvée dans {sessions_dir}")
        return

    sessions = []
    for d in sorted(sessions_dir.iterdir()):
        if not d.is_dir():
            continue
        json_files = list(d.glob("*.json"))
        if json_files:
            try:
                session = RawSession.load_from_file(json_files[0])
                sessions.append(session)
            except Exception:
                pass

    if not sessions:
        print("Aucune session trouvée.")
        return

    print(f"\n{'='*70}")
    print(f"  Sessions enregistrées ({len(sessions)})")
    print(f"{'='*70}")
    for s in sessions:
        duration = ""
        if s.ended_at and s.started_at:
            duration = f"{(s.ended_at - s.started_at).total_seconds():.0f}s"
        wf = s.context.get("workflow", "")
        print(
            f"  {s.session_id}  |  {len(s.events):3d} events  "
            f"|  {len(s.screenshots):3d} screenshots  |  {duration:>5s}  |  {wf}"
        )
    print(f"{'='*70}\n")


# =========================================================================
# Main
# =========================================================================


def main():
    parser = argparse.ArgumentParser(
        description="Enregistre des sessions RPA et construit des workflows",
        formatter_class=argparse.RawDescriptionHelpFormatter,
    )
    parser.add_argument(
        "--output-dir",
        default="data/training/sessions",
        help="Répertoire de sortie (défaut: data/training/sessions)",
    )

    sub = parser.add_subparsers(dest="command", help="Commande")

    # record
    p_record = sub.add_parser("record", help="Enregistrer une session")
    p_record.add_argument("--name", default="", help="Nom du workflow")
    p_record.add_argument(
        "--interval", type=int, default=0,
        help="Intervalle de capture périodique en ms (0=désactivé)",
    )

    # build
    p_build = sub.add_parser("build", help="Construire un workflow depuis une session")
    p_build.add_argument("--session", required=True, help="Chemin vers le dossier de session")
    p_build.add_argument("--name", default="", help="Nom du workflow")

    # full
    p_full = sub.add_parser("full", help="Enregistrer + construire")
    p_full.add_argument("--name", default="", help="Nom du workflow")
    p_full.add_argument(
        "--interval", type=int, default=0,
        help="Intervalle de capture périodique en ms (0=désactivé)",
    )

    # list
    sub.add_parser("list", help="Lister les sessions enregistrées")

    args = parser.parse_args()

    if args.command == "record":
        cmd_record(args)
    elif args.command == "build":
        cmd_build(args)
    elif args.command == "full":
        cmd_full(args)
    elif args.command == "list":
        cmd_list(args)
    else:
        parser.print_help()


if __name__ == "__main__":
    main()