"""Diagnostic: laptop products, their sites, and listings left unlinked."""
from app.electronics.db.connection import connect

with connect() as c:
    rows = c.execute(
        """
        SELECT p.variant_key, p.verification_status AS v, string_agg(s.name, ', ') AS sites
        FROM elec.product p
        JOIN elec.category ca ON ca.id = p.category_id AND ca.slug = 'laptops'
        LEFT JOIN elec.product_listing_map m ON m.product_id = p.id
        LEFT JOIN elec.source_listing l ON l.id = m.listing_id
        LEFT JOIN elec.site s ON s.id = l.site_id
        GROUP BY 1, 2 ORDER BY 1
        """
    ).fetchall()
    for r in rows:
        print(f"{r['v'][:5]:5} {r['variant_key']:60} | {r['sites']}")
    print("\nUnlinked:")
    for r in c.execute(
        """
        SELECT s.name, l.title FROM elec.source_listing l JOIN elec.site s ON s.id = l.site_id
        JOIN elec.category ca ON ca.id = l.category_id AND ca.slug = 'laptops'
        WHERE NOT EXISTS (SELECT 1 FROM elec.product_listing_map m WHERE m.listing_id = l.id)
        """
    ):
        print(f"  {r['name'][:12]:12} {r['title'][:120]}".encode("ascii", "replace").decode())