"""Erkennt anhand des Nummernformats, welche Paketdienste in Frage kommen.

Viele Formate überschneiden sich, deshalb kann es mehrere Treffer geben.
"""
import re
from urllib.parse import quote


def universal_link(number: str) -> str:
    return f"https://t.17track.net/de#nums={quote(number)}"


_DHL = "https://www.dhl.de/de/privatkunden/pakete-empfangen/verfolgen.html?piececode={}"

CARRIERS = [
    ("dhl", "DHL", [r"\d{12}", r"\d{20}", r"(JJD|JVGL)\d{8,}", r"00340\d{15}", r"\d{10}"], _DHL),
    ("deutschepost", "Deutsche Post", [r"[A-Z]{2}\d{9}DE"], _DHL),
    ("ups", "UPS", [r"1Z[0-9A-Z]{16}"], "https://www.ups.com/track?loc=de_DE&tracknum={}"),
    ("hermes", "Hermes", [r"\d{14}", r"\d{16}", r"H\d{19}"],
     "https://www.myhermes.de/empfangen/sendungsverfolgung/sendungsinformation#{}"),
    ("dpd", "DPD", [r"\d{14}", r"\d{27,28}"], "https://tracking.dpd.de/status/de_DE/parcel/{}"),
    ("gls", "GLS", [r"\d{11,12}", r"[A-Z0-9]{8}"], "https://gls-group.com/DE/de/paketverfolgung?match={}"),
    ("fedex", "FedEx", [r"\d{12}", r"\d{15}"], "https://www.fedex.com/fedextrack/?trknbr={}"),
    ("amazon", "Amazon Logistics", [r"TBA\d{9,}"], "https://www.amazon.de/gp/your-account/order-history"),
    ("upu", "Internationale Post (UPU)", [r"[A-Z]{2}\d{9}(?!DE)[A-Z]{2}"], None),
]

_COMPILED = [(cid, name, [re.compile(p) for p in patterns], link) for cid, name, patterns, link in CARRIERS]


def detect_carriers(number: str) -> list[dict]:
    result = []
    for cid, name, patterns, link in _COMPILED:
        if any(p.fullmatch(number) for p in patterns):
            url = link.format(quote(number)) if link else universal_link(number)
            result.append({"id": cid, "name": name, "link": url})
    return result