import csv
from pathlib import Path
from typing import List

from ee.part.bom import load_bom, check_bom, generate_bom, join_refs

__all__ = ["create_bom"]


def create_bom(bom_path: Path, part_files: List[Path], out_path: Path, allow_incomplete):
    bom_parts, supplier_parts = load_bom(bom_path, part_files)
    check_bom(bom_parts, supplier_parts)

    lines = generate_bom(allow_incomplete, bom_parts, supplier_parts)

    if lines is None:
        return

    with out_path.open("w") as f:
        w = csv.writer(f)
        w.writerow(["Quantity", "Digi-Key Part Number", "Customer Reference"])

        for line in lines:
            w.writerows([str(len(line.refs)), line.part.get_exactly_one_spn().valueProp, join_refs(line.refs)])