#!/bin/python3
from __future__ import annotations

import subprocess
import sys
from pathlib import Path

from utils import ask_int, ask_float


BASE_DIR = Path(__file__).resolve().parent
SCAD_DIR = BASE_DIR / "seedlings_tray"
OUT_DIR = BASE_DIR / "stl"


def render_scad(
    scad_file: Path,
    out_file: Path,
    cols: int,
    rows: int,
    cell_size: float,
    tray_height: float,
    render_mode: str,
) -> None:
    cmd = (
        f'openscad '
        f'-D cols={cols} '
        f'-D rows={rows} '
        f'-D cell_size={cell_size} '
        f'-D tray_height={tray_height} '
        f'-D \'render_mode="{render_mode}"\' '
        f'-o "{out_file}" '
        f'"{scad_file}"'
    )

    result = subprocess.run(
        ["bash", "-lc", cmd],
        cwd=BASE_DIR,
        text=True,
        capture_output=True,
    )

    if result.returncode != 0:
        print(f"\nFailed to render {scad_file.name}")
        if result.stdout:
            print(result.stdout)
        if result.stderr:
            print(result.stderr, file=sys.stderr)
        raise SystemExit(result.returncode)

    print(f"Generated {out_file}")


def main() -> None:
    if not SCAD_DIR.exists():
        raise SystemExit(f"Missing SCAD directory: {SCAD_DIR}")

    print("Dimensions less than 20 mm may result in unusable STL files.\n")

    cols = ask_int("Number of columns (cols): ")
    rows = ask_int("Number of rows (rows): ")
    cell_size = ask_float("Inner cell size in mm (cell_size): ")
    tray_height = ask_float("Tray height in mm (tray_height): ")

    OUT_DIR.mkdir(parents=True, exist_ok=True)

    scad_file = SCAD_DIR / "seedlings-tray.scad"
    if not scad_file.exists():
        raise SystemExit(f"Missing file: {scad_file}")

    # Render the tray only
    render_scad(
        scad_file,
        OUT_DIR / "seedlings-tray.stl",
        cols,
        rows,
        cell_size,
        tray_height,
        "tray_only",
    )

    # Render all plates in a grid
    render_scad(
        scad_file,
        OUT_DIR / "plates.stl",
        cols,
        rows,
        cell_size,
        tray_height,
        "plates_only",
    )

    print("\nDone.")


if __name__ == "__main__":
    main()