import csv
from math import ceil
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, quantity: float):
    bom_parts, supplier_parts = load_bom(bom_path, part_files)
    check_bom(bom_parts, supplier_parts)

    bom = generate_bom(allow_incomplete, bom_parts, supplier_parts)

    if bom is None:
        return

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

        for line in bom.lines:
            line = [
                line.part.get_exactly_one_spn().valueProp,
                int(ceil(len(line.refs) * quantity)),
                join_refs(line.refs)]
            w.writerow([str(cell) for cell in line])