#!/usr/bin/env python3
"""
Verifică regula adrese PJ/PF pe comenzile importate din SQLite.

Logica:
  PF (cod_fiscal_gomag IS NULL):   id_adresa_facturare = id_adresa_livrare
  PJ (cod_fiscal_gomag IS NOT NULL): adresa_facturare_roa se potriveste cu GoMag billing
                                     (nu cu GoMag shipping)

Rulare:
  python3 scripts/verify_address_rules.py
  python3 scripts/verify_address_rules.py --days 7     # ultimele 7 zile
  python3 scripts/verify_address_rules.py --all        # toate comenzile
  python3 scripts/verify_address_rules.py --status IMPORTED
"""

import argparse
import json
import os
import sqlite3
import sys
from pathlib import Path

# Add api/ to path for app imports
_repo_root = Path(__file__).resolve().parent.parent
sys.path.insert(0, str(_repo_root / "api"))

from dotenv import load_dotenv
load_dotenv(_repo_root / "api" / ".env")

from app.services.sync_service import _addr_match


def main():
    parser = argparse.ArgumentParser(description="Verifică regula adrese PJ/PF în SQLite")
    parser.add_argument("--days", type=int, default=30,
                        help="Număr de zile în urmă (default: 30)")
    parser.add_argument("--all", action="store_true",
                        help="Toate comenzile, indiferent de dată")
    parser.add_argument("--status", default=None,
                        help="Filtrează după status (ex: IMPORTED)")
    args = parser.parse_args()

    _raw_path = os.environ.get("SQLITE_DB_PATH", "data/import.db")
    db_path = _raw_path if os.path.isabs(_raw_path) else str(_repo_root / "api" / _raw_path)
    if not Path(db_path).exists():
        print(f"EROARE: SQLite DB nu există: {db_path}")
        sys.exit(1)

    conn = sqlite3.connect(db_path)
    conn.row_factory = sqlite3.Row

    # Build query
    where_clauses = ["id_adresa_facturare IS NOT NULL", "id_adresa_livrare IS NOT NULL"]
    params = []

    if not args.all:
        where_clauses.append("first_seen_at >= datetime('now', ?)")
        params.append(f"-{args.days} days")

    if args.status:
        where_clauses.append("status = ?")
        params.append(args.status)

    where_sql = " AND ".join(where_clauses)
    rows = conn.execute(f"""
        SELECT order_number, status, cod_fiscal_gomag,
               id_adresa_facturare, id_adresa_livrare,
               adresa_facturare_gomag, adresa_livrare_gomag,
               adresa_facturare_roa, adresa_livrare_roa,
               first_seen_at
        FROM orders
        WHERE {where_sql}
        ORDER BY first_seen_at DESC
    """, params).fetchall()

    conn.close()

    if not rows:
        scope = "toate comenzile" if args.all else f"ultimele {args.days} zile"
        print(f"Nicio comandă cu adrese populate ({scope}).")
        sys.exit(0)

    pf_ok = pf_err = pj_ok = pj_err = pj_skip = 0
    violations = []

    for r in rows:
        is_pj = bool(r["cod_fiscal_gomag"])
        id_fact = r["id_adresa_facturare"]
        id_livr = r["id_adresa_livrare"]
        order = r["order_number"]
        date = (r["first_seen_at"] or "")[:10]

        if not is_pj:
            # PF: id_facturare trebuie = id_livrare
            if id_fact == id_livr:
                pf_ok += 1
            else:
                pf_err += 1
                violations.append({
                    "order": order, "date": date, "type": "PF",
                    "issue": f"id_fact={id_fact} != id_livr={id_livr}",
                    "detail": None,
                })
        else:
            # PJ: adresa_facturare_roa trebuie sa se potriveasca cu GoMag billing
            fact_roa = r["adresa_facturare_roa"]
            fact_gomag = r["adresa_facturare_gomag"]
            livr_gomag = r["adresa_livrare_gomag"]

            if not fact_roa or not fact_gomag:
                pj_skip += 1
                continue

            # Check 1: billing ROA matches GoMag billing
            billing_match = _addr_match(fact_gomag, fact_roa)
            # Check 2: billing ROA does NOT match GoMag shipping (wrong old behavior)
            shipping_match = _addr_match(livr_gomag, fact_roa) if livr_gomag else False

            if billing_match:
                pj_ok += 1
            else:
                pj_err += 1
                detail = "billing_ROA matches shipping GoMag" if shipping_match else "billing_ROA mismatch"
                violations.append({
                    "order": order, "date": date, "type": "PJ",
                    "issue": detail,
                    "detail": f"billing_gomag={_short(fact_gomag)} | fact_roa={fact_roa}",
                })

    # Output
    total = len(rows)
    print(f"\n{'='*60}")
    scope = "toate" if args.all else f"ultimele {args.days} zile"
    print(f"  Verificare adrese PJ/PF ({scope}, {total} comenzi cu adrese)")
    print(f"{'='*60}")
    print(f"  PF (fara CUI):   {pf_ok:4d} OK  |  {pf_err:4d} ERORI")
    print(f"  PJ (cu CUI):     {pj_ok:4d} OK  |  {pj_err:4d} ERORI  |  {pj_skip:4d} skip (date lipsa)")
    print(f"{'='*60}")

    if not violations:
        print("  ✓ Toate comenzile respecta regula PJ/PF.\n")
    else:
        print(f"\n  VIOLARI ({len(violations)}):\n")
        for v in violations[:20]:
            print(f"  [{v['date']}] {v['order']:25s}  {v['type']}  {v['issue']}")
            if v["detail"]:
                print(f"    {v['detail']}")
        if len(violations) > 20:
            print(f"  ... si inca {len(violations)-20} violari.")
        print()

    sys.exit(1 if violations else 0)


def _short(json_str):
    """Returnează un rezumat scurt al unui JSON de adresă."""
    if not json_str:
        return "(null)"
    try:
        d = json.loads(json_str)
        return f"{d.get('address','?')}, {d.get('city','?')}"
    except Exception:
        return json_str[:40]




if __name__ == "__main__":
    main()