"""
Catalog modes — OEM vs Local bodega filtering for brand lists.

Two catalog modes coexist:

  - 'oem'   : Full TecDoc catalog (36+ vehicle brands from Apify import).
              Use this for any customer-facing "find your exact OEM part" flow.

  - 'local' : Curated list of vehicle brands that local bodegas in Mexico
              actually service. Used while the TecDoc/Apify import is paused
              or to simplify navigation for customers who only care about
              what's available locally.

Both modes use the SAME navigation hierarchy (brand > model > year > engine >
category > parts). Only the initial brand list is filtered.

Edit LOCAL_BODEGA_BRANDS below to add/remove brands as the bodega network grows.
Brand names must match the `brands.name_brand` column in nexus_autoparts
(case-sensitive, uppercase).
"""

# ─── OEM mode — full North America coverage (imported from TecDoc) ──────────
OEM_BRANDS_NA = (
    'ACURA', 'AUDI', 'BMW', 'BUICK', 'CADILLAC', 'CHEVROLET', 'CHRYSLER',
    'DODGE', 'FIAT', 'FORD', 'GMC', 'HONDA', 'HYUNDAI', 'INFINITI',
    'JAGUAR', 'JEEP', 'KIA', 'LAND ROVER', 'LEXUS', 'LINCOLN', 'MAZDA',
    'MERCEDES-BENZ', 'MINI', 'MITSUBISHI', 'NISSAN', 'PEUGEOT', 'PORSCHE',
    'RAM', 'RENAULT', 'SEAT', 'SUBARU', 'SUZUKI', 'TESLA', 'TOYOTA',
    'VOLVO', 'VW',
)

# ─── Local mode — brands actually stocked by Mexican bodegas ────────────────
# Popular Mexican market passenger cars + light trucks. Edit as needed.
LOCAL_BODEGA_BRANDS = (
    'NISSAN',       # Tsuru, Sentra, Versa, March, Tiida, Navara
    'VW',           # Jetta, Pointer, Vento, Gol, Polo, Beetle
    'CHEVROLET',    # Aveo, Chevy, Spark, Beat, Sonic, Sail
    'FORD',         # Fiesta, Focus, EcoSport, Ranger, Figo
    'TOYOTA',       # Corolla, Yaris, Hilux, Avanza, Tacoma
    'HONDA',        # Civic, City, CR-V, Fit, HR-V
    'DODGE',        # Attitude, Neon, Journey
    'CHRYSLER',
    'RAM',          # Pickups
    'HYUNDAI',      # Accent, Grand i10, Tucson, Elantra
    'KIA',          # Rio, Forte, Sportage, Sorento
    'MAZDA',        # 2, 3, CX-5, CX-30
    'MITSUBISHI',   # Lancer, L200, Outlander
    'RENAULT',      # Logan, Sandero, Duster, Stepway
    'SEAT',         # Ibiza, Leon, Arona
    'FIAT',         # Uno, Palio, Mobi
    'SUZUKI',       # Swift, Vitara, Ignis, Ertiga
    'JEEP',         # Compass, Wrangler, Grand Cherokee, Renegade
    'GMC',          # Sierra, Terrain
    'BUICK',        # Encore, Enclave (GM)
)


def get_brands_for_mode(mode):
    """Return the tuple of allowed brand names for a given catalog mode.

    Args:
        mode: 'oem' or 'local'. Anything else defaults to 'oem'.

    Returns:
        A tuple of uppercase brand name strings.
    """
    if mode == 'local':
        return LOCAL_BODEGA_BRANDS
    return OEM_BRANDS_NA


def normalize_mode(raw):
    """Normalize a raw mode string from a query param or header."""
    if not raw:
        return 'oem'
    cleaned = str(raw).strip().lower()
    return 'local' if cleaned == 'local' else 'oem'


# ─── Local mode — priority aftermarket manufacturer brands ─────────────────
# Ordered list. Brands earlier in the list are shown first and get the top
# "priority" badge in the UI. Match `manufacturers.name_manufacture` (uppercase).
#
# Tier 1 (most trusted / most stocked in Mexican bodegas) — shown first.
# Tier 2 (also popular but not always on every shelf) — shown second.
# Anything not in either list is "other" and shown last.
LOCAL_PRIORITY_MANUFACTURERS_TIER1 = (
    'BOSCH',         # Universal — ignition, sensors, filters, wipers
    'GATES',         # Bandas / timing belts
    'MONROE',        # Amortiguadores
    'DENSO',         # Ignition, cooling, AC
    'MANN-FILTER',   # Filtros
    'MAHLE',         # Filtros, pistones, termostatos
    'NGK',           # Bujias
    'BREMBO',        # Frenos premium
    'KYB',           # Amortiguadores
    'SKF',           # Rodamientos
)

LOCAL_PRIORITY_MANUFACTURERS_TIER2 = (
    'DELPHI',
    'VALEO',
    'HELLA',
    'DAYCO',
    'SACHS',
    'CHAMPION',
    'WAGNER',
    'FRAM',
    'NSK',
)

# Combined flat tuple (Tier1 followed by Tier2) — used for SQL IN clauses
# and for determining "any priority" status.
LOCAL_PRIORITY_MANUFACTURERS = LOCAL_PRIORITY_MANUFACTURERS_TIER1 + LOCAL_PRIORITY_MANUFACTURERS_TIER2


def get_priority_tier(manufacturer_name):
    """Return 1 for tier 1, 2 for tier 2, 3 for everything else.

    Used both by the sort order and by the UI to render a priority badge.
    """
    if not manufacturer_name:
        return 3
    name = manufacturer_name.upper()
    if name in LOCAL_PRIORITY_MANUFACTURERS_TIER1:
        return 1
    if name in LOCAL_PRIORITY_MANUFACTURERS_TIER2:
        return 2
    return 3