#!/usr/bin/env python3
"""Check Facturapi configuration status for all active tenants.

Usage:
    export MASTER_DB_URL=postgresql://user:pass@host/nexus_autoparts
    export TENANT_DB_URL_TEMPLATE="postgresql://user:pass@host/{db_name}"
    export FACTURAPI_USER_KEY=sk_user_xxx          # optional, for org auto-discovery
    python3 scripts/check_facturapi_tenants.py

Output: table (default), --json, or --csv.
"""

import argparse
import csv
import json
import os
import sys

# Allow importing pos/services
POS_DIR = os.path.join(os.path.dirname(os.path.dirname(os.path.abspath(__file__))), "pos")
sys.path.insert(0, POS_DIR)

import psycopg2  # noqa: E402
from services import facturapi_service  # noqa: E402


def get_tenants(master_dsn: str):
    conn = psycopg2.connect(master_dsn)
    try:
        cur = conn.cursor()
        cur.execute(
            """
            SELECT t.id, t.db_name, t.name, t.subdomain, COALESCE(v.version, 'v0.0') AS version
            FROM tenants t
            LEFT JOIN tenant_schema_version v ON t.id = v.tenant_id
            WHERE t.is_active = true
            ORDER BY t.id
            """
        )
        rows = cur.fetchall()
        cur.close()
        return rows
    finally:
        conn.close()


def get_tenant_config(db_name: str, template_dsn: str) -> dict[str, str]:
    dsn = template_dsn.format(db_name=db_name)
    conn = psycopg2.connect(dsn)
    try:
        cur = conn.cursor()

        # Business-level fiscal data
        cur.execute(
            """
            SELECT key, value FROM tenant_config
            WHERE key IN (
                'tenant_rfc', 'tenant_razon_social', 'tenant_cp',
                'cfdi_regimen_fiscal', 'cfdi_serie',
                'cfdi_facturapi_key', 'cfdi_facturapi_org_id'
            )
            """
        )
        config = {row[0]: row[1] or "" for row in cur.fetchall()}

        # Main branch fiscal data (used as fallback by _get_issuer_config)
        cur.execute(
            """
            SELECT rfc, razon_social, regimen_fiscal, codigo_postal, serie_cfdi
            FROM branches WHERE is_main = true LIMIT 1
            """
        )
        branch = cur.fetchone()
        if branch:
            config["rfc"] = (branch[0] or config.get("tenant_rfc", "")).strip()
            config["razon_social"] = (branch[1] or config.get("tenant_razon_social", "")).strip()
            config["regimen_fiscal"] = (branch[2] or config.get("cfdi_regimen_fiscal", "")).strip()
            config["cp"] = (branch[3] or config.get("tenant_cp", "")).strip()
            config["serie"] = (branch[4] or config.get("cfdi_serie", "")).strip()
        else:
            config["rfc"] = config.get("tenant_rfc", "").strip()
            config["razon_social"] = config.get("tenant_razon_social", "").strip()
            config["regimen_fiscal"] = config.get("cfdi_regimen_fiscal", "").strip()
            config["cp"] = config.get("tenant_cp", "").strip()
            config["serie"] = config.get("cfdi_serie", "").strip()

        cur.close()
        return config
    finally:
        conn.close()


def check_tenant(tenant_id: int, db_name: str, name: str, version: str, template_dsn: str) -> dict:
    result = {
        "tenant_id": tenant_id,
        "db_name": db_name,
        "name": name,
        "schema_version": version,
        "rfc": "",
        "razon_social": "",
        "has_key": False,
        "has_org_id": False,
        "has_csd": False,
        "configured": False,
        "pending_steps": [],
        "error": None,
    }

    try:
        config = get_tenant_config(db_name, template_dsn)
        result["rfc"] = config.get("rfc", "")
        result["razon_social"] = config.get("razon_social", "")

        status = facturapi_service.get_org_status(config)
        result.update(
            {
                "has_key": status.get("has_key", False),
                "has_org_id": status.get("has_org_id", False),
                "has_csd": status.get("has_csd", False),
                "configured": status.get("configured", False),
                "pending_steps": status.get("pending_steps", []),
                "error": status.get("error"),
            }
        )
    except Exception as e:
        result["error"] = f"{type(e).__name__}: {str(e)[:200]}"

    return result


def print_table(results: list[dict]):
    headers = ["ID", "Tenant", "RFC", "Key", "Org", "CSD", "Status", "Error/Pending"]
    rows = []
    for r in results:
        status = "OK" if r["configured"] and r["has_csd"] else "PENDING"
        pending = (
            "; ".join((s.get("description") or s.get("type") or str(s)) for s in r["pending_steps"])
            if r["pending_steps"]
            else ""
        )
        detail = (r["error"] or pending or "")[:60]
        rows.append(
            [
                str(r["tenant_id"]),
                r["name"][:28],
                r["rfc"] or "-",
                "Sí" if r["has_key"] else "No",
                "Sí" if r["has_org_id"] else "No",
                "Sí" if r["has_csd"] else "No",
                status,
                detail,
            ]
        )

    widths = [max(len(str(row[i])) for row in [headers] + rows) for i in range(len(headers))]
    sep = "+-" + "-+-".join("-" * w for w in widths) + "-+"

    def fmt(row):
        return "| " + " | ".join(str(row[i]).ljust(widths[i]) for i in range(len(row))) + " |"

    print(sep)
    print(fmt(headers))
    print(sep)
    for row in rows:
        print(fmt(row))
    print(sep)
    print(
        f"\nTotal: {len(results)} tenants | Listos: {sum(1 for r in results if r['configured'] and r['has_csd'])} | Pendientes: {sum(1 for r in results if not (r['configured'] and r['has_csd']))}"
    )


def print_json(results: list[dict]):
    print(json.dumps(results, indent=2, default=str))


def print_csv(results: list[dict]):
    writer = csv.DictWriter(
        sys.stdout,
        fieldnames=[
            "tenant_id",
            "name",
            "db_name",
            "schema_version",
            "rfc",
            "has_key",
            "has_org_id",
            "has_csd",
            "configured",
            "error",
        ],
    )
    writer.writeheader()
    for r in results:
        writer.writerow(
            {
                "tenant_id": r["tenant_id"],
                "name": r["name"],
                "db_name": r["db_name"],
                "schema_version": r["schema_version"],
                "rfc": r["rfc"],
                "has_key": r["has_key"],
                "has_org_id": r["has_org_id"],
                "has_csd": r["has_csd"],
                "configured": r["configured"],
                "error": r["error"],
            }
        )


def main():
    parser = argparse.ArgumentParser(description="Check Facturapi status for all tenants")
    parser.add_argument("--json", action="store_true", help="Output JSON")
    parser.add_argument("--csv", action="store_true", help="Output CSV")
    args = parser.parse_args()

    master_dsn = os.environ.get("MASTER_DB_URL")
    template_dsn = os.environ.get("TENANT_DB_URL_TEMPLATE")

    if not master_dsn or not template_dsn:
        print("Set MASTER_DB_URL and TENANT_DB_URL_TEMPLATE", file=sys.stderr)
        sys.exit(1)

    tenants = get_tenants(master_dsn)
    if not tenants:
        print("No active tenants found.")
        return

    results = []
    for tenant_id, db_name, name, _subdomain, version in tenants:
        results.append(check_tenant(tenant_id, db_name, name, version, template_dsn))

    if args.json:
        print_json(results)
    elif args.csv:
        print_csv(results)
    else:
        print_table(results)


if __name__ == "__main__":
    main()