"""Duplique le workflow Demo_urgence_2 en Demo_urgence_2_interop.

- Source : wf_d04d2dc7c118_1778493082
- Exclus : ord 13, 15, 16, 18, 19 (steps UI Codage Easily)
- Conservés : ord 0-12, 14, 17 → renumérotés 0..14
- Anchors partagés (pas de duplication de visual_anchors)
- Transaction SQLite : commit unique en fin.

Usage :
    python tools/duplicate_demo_urgence_2_interop.py [--dry-run]
"""
from __future__ import annotations

import argparse
import secrets
import sqlite3
import sys
import time
from pathlib import Path

DB_PATH = Path(__file__).resolve().parent.parent / "visual_workflow_builder" / "backend" / "instance" / "workflows.db"
SOURCE_WF_ID = "wf_d04d2dc7c118_1778493082"
NEW_WF_NAME = "Demo_urgence_2_interop"
ORDS_TO_EXCLUDE = {13, 15, 16, 18, 19}


def new_id(prefix: str, ts: int) -> str:
    return f"{prefix}_{secrets.token_hex(6)}_{ts}"


def main() -> int:
    parser = argparse.ArgumentParser()
    parser.add_argument("--dry-run", action="store_true", help="Pas de COMMIT, juste afficher.")
    args = parser.parse_args()

    if not DB_PATH.exists():
        print(f"ERREUR : DB introuvable {DB_PATH}", file=sys.stderr)
        return 1

    ts = int(time.time())
    new_wf_id = new_id("wf", ts)

    conn = sqlite3.connect(DB_PATH)
    conn.row_factory = sqlite3.Row
    cur = conn.cursor()

    # 1. Vérifier que le nom de destination n'existe pas déjà
    row = cur.execute("SELECT id FROM workflows WHERE name = ?", (NEW_WF_NAME,)).fetchone()
    if row:
        print(f"ERREUR : un workflow nommé '{NEW_WF_NAME}' existe déjà (id={row['id']})", file=sys.stderr)
        return 2

    # 2. Lire la ligne workflow source
    src_wf = cur.execute("SELECT * FROM workflows WHERE id = ?", (SOURCE_WF_ID,)).fetchone()
    if not src_wf:
        print(f"ERREUR : workflow source {SOURCE_WF_ID} introuvable", file=sys.stderr)
        return 3

    # 3. Lire les steps à conserver, dans l'ordre
    src_steps = cur.execute(
        'SELECT * FROM steps WHERE workflow_id = ? ORDER BY "order"',
        (SOURCE_WF_ID,),
    ).fetchall()
    kept_steps = [s for s in src_steps if s["order"] not in ORDS_TO_EXCLUDE]
    if len(kept_steps) != 15:
        print(f"ERREUR : attendu 15 steps conservés, obtenu {len(kept_steps)}", file=sys.stderr)
        return 4

    # 4. Préparer mapping (renumérotation 0..14)
    mapping = []
    for new_order, s in enumerate(kept_steps):
        new_step_id = new_id("step", ts + new_order)  # ts unique par step
        mapping.append({
            "old_id": s["id"],
            "new_id": new_step_id,
            "old_order": s["order"],
            "new_order": new_order,
            "action_type": s["action_type"],
            "label": s["label"],
            "position_x": s["position_x"],
            "position_y": s["position_y"],
            "parameters_json": s["parameters_json"],
            "anchor_id": s["anchor_id"],
        })

    # 5. Affichage tableau avant/après
    print(f"\nWorkflow source : {SOURCE_WF_ID} (name={src_wf['name']})")
    print(f"Workflow cible  : {new_wf_id} (name={NEW_WF_NAME})")
    print(f"Steps conservés : {len(mapping)} / {len(src_steps)}")
    print(f"\n{'old_ord':>7} → {'new_ord':>7}  {'action_type':<20} label")
    print("-" * 80)
    for m in mapping:
        print(f"{m['old_order']:>7} → {m['new_order']:>7}  {m['action_type']:<20} {m['label']}")
    print()

    if args.dry_run:
        print("--dry-run : aucune modification de la DB.")
        return 0

    # 6. Exécution transactionnelle
    now_iso = time.strftime("%Y-%m-%d %H:%M:%S")
    try:
        cur.execute("BEGIN")
        cur.execute(
            """
            INSERT INTO workflows
                (id, name, description, tags_json, trigger_examples_json,
                 created_at, updated_at, is_active, source,
                 review_status, review_feedback, reviewed_at)
            VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
            """,
            (
                new_wf_id,
                NEW_WF_NAME,
                src_wf["description"],
                src_wf["tags_json"],
                src_wf["trigger_examples_json"],
                now_iso,
                now_iso,
                src_wf["is_active"],
                src_wf["source"],
                src_wf["review_status"],
                src_wf["review_feedback"],
                src_wf["reviewed_at"],
            ),
        )

        for m in mapping:
            cur.execute(
                """
                INSERT INTO steps
                    (id, workflow_id, action_type, "order",
                     position_x, position_y, parameters_json, anchor_id, label,
                     created_at, updated_at)
                VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
                """,
                (
                    m["new_id"],
                    new_wf_id,
                    m["action_type"],
                    m["new_order"],
                    m["position_x"],
                    m["position_y"],
                    m["parameters_json"],
                    m["anchor_id"],
                    m["label"],
                    now_iso,
                    now_iso,
                ),
            )

        conn.commit()
        print(f"OK — workflow {NEW_WF_NAME} créé ({len(mapping)} steps), id={new_wf_id}")
        return 0
    except Exception as e:
        conn.rollback()
        print(f"ROLLBACK — exception : {e}", file=sys.stderr)
        return 5
    finally:
        conn.close()


if __name__ == "__main__":
    sys.exit(main())