#!/usr/bin/env python3

from __future__ import annotations

import argparse
import csv
from pathlib import Path

import img2pdf


SOURCE_ROOT = Path("/workspace/SchemID/derived/Source")
SHEETS_ROOT = SOURCE_ROOT / "sheets"
FIXED_DPI = (300, 300)


def main() -> None:
    parser = argparse.ArgumentParser()
    parser.add_argument(
        "--manifest",
        type=Path,
        default=SHEETS_ROOT / "sheet_manifest.csv",
        help="Sheet manifest CSV path.",
    )
    parser.add_argument(
        "--output-pdf",
        type=Path,
        default=SHEETS_ROOT / "all_visualization_sheets.pdf",
        help="Output PDF path.",
    )
    args = parser.parse_args()

    image_paths: list[str] = []
    with args.manifest.open(newline="") as handle:
        reader = csv.DictReader(handle)
        for row in reader:
            image_path = SHEETS_ROOT / row["sheet_png"]
            image_paths.append(str(image_path))

    layout_fun = img2pdf.get_fixed_dpi_layout_fun(FIXED_DPI)
    args.output_pdf.parent.mkdir(parents=True, exist_ok=True)
    with args.output_pdf.open("wb") as handle:
        handle.write(img2pdf.convert(image_paths, layout_fun=layout_fun))


if __name__ == "__main__":
    main()