79 lines
2.6 KiB
Python
79 lines
2.6 KiB
Python
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"""Exact lookups: Komm-Nr, DVN, VIN.
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Loco-Soft Komm-Nr-Schema:
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Type-Buchstabe (N/T/V/D/G/L) + DVN-Zahl (4-6 Stellen)
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Beispiele: 'D9094' (Nissan Leaf), 'N8093' (Askoll XKP45), 'L9083' (Opel)
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N = Neu, T = Tageszul., V = Vorfuehr,
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D = Differenzbest., G = Gebraucht, L = Leihgabe
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DVN allein ist eindeutig pro Fahrzeug, deshalb auch als Such-Einstieg möglich.
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"""
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import re
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from app import db
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from app.schemas import SearchResultItem
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COLUMNS = """
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vehicle_id, dvn, commission_number, vin, brand, model, title,
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price::float8 as price, primary_image_id::text as primary_image_id,
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directus_product_id, dealer_vehicle_type
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"""
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KOMM_NR_RE = re.compile(r"^([NTVDGLntvdgl])\s*(\d{4,6})$")
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def normalize_komm_nr(raw: str) -> str | None:
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"""'D 9094' / 'd9094' / ' D9094 ' -> 'D9094'. Returns None if not a valid pattern."""
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if not raw:
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return None
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m = KOMM_NR_RE.match(raw.strip())
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if not m:
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return None
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return m.group(1).upper() + m.group(2)
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async def by_komm_nr(raw: str) -> list[SearchResultItem]:
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"""Lookup by full Komm-Nr (Type-Letter + DVN). Eindeutig wenn vorhanden."""
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normalized = normalize_komm_nr(raw)
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if not normalized:
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return []
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sql = f"SELECT {COLUMNS} FROM search_vehicles WHERE commission_number = $1 LIMIT 5"
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rows = await db.fetch(sql, normalized)
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return [_row_to_item(r, matched_via="exact_komm") for r in rows]
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async def by_dvn(number: str) -> list[SearchResultItem]:
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"""Lookup by DVN allein (4-6 stellige Zahl ohne Type-Buchstabe).
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DVN ist eindeutig pro Fahrzeug, also liefert das immer 0 oder 1 Treffer."""
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try:
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dvn_int = int(number)
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except (ValueError, TypeError):
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return []
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sql = f"SELECT {COLUMNS} FROM search_vehicles WHERE dvn = $1 LIMIT 5"
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rows = await db.fetch(sql, dvn_int)
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return [_row_to_item(r, matched_via="exact_dvn") for r in rows]
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async def by_vin(vin: str) -> list[SearchResultItem]:
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sql = f"SELECT {COLUMNS} FROM search_vehicles WHERE vin = $1 LIMIT 5"
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rows = await db.fetch(sql, vin)
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return [_row_to_item(r, matched_via="exact_vin") for r in rows]
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def _row_to_item(row, matched_via: str) -> SearchResultItem:
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return SearchResultItem(
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vehicle_id=row["vehicle_id"],
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commission_number=row["commission_number"],
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vin=row["vin"],
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brand=row["brand"],
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model=row["model"],
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title=row["title"] or "",
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price=row["price"],
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primary_image_id=row["primary_image_id"],
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directus_product_id=row["directus_product_id"],
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score=1.0,
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matched_via=matched_via,
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)
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