#!/usr/bin/env python3
# file: scripts/build_reflex_tauri_wasm.py
# version: 1

"""Build the Reflex WASM adapter and generate browser bindings for the local Tauri frontend."""

from __future__ import annotations

import pathlib
import subprocess
import sys


def main() -> int:
    """Build the WASM library and run wasm-bindgen into the committed Tauri frontend directory."""

    root = pathlib.Path(__file__).resolve().parent.parent
    target_dir = root.parent / "builds" / "sasedev-games" / "target"
    wasm_path = target_dir / "wasm32-unknown-unknown" / "debug" / "game_reflex_poc_tauri.wasm"
    output_dir = root / "Tauri" / "game-reflex-poc" / "frontend"

    build = subprocess.run(
        ["cargo", "build", "-p", "game-reflex-poc-tauri", "--lib", "--target", "wasm32-unknown-unknown"],
        cwd=root,
        check=False,
    )
    if build.returncode != 0:
        return build.returncode
    if not wasm_path.is_file():
        print(f"WASM artifact not found: {wasm_path}", file=sys.stderr)
        return 2

    bindings = subprocess.run(
        [
            "wasm-bindgen",
            str(wasm_path),
            "--target",
            "web",
            "--out-dir",
            str(output_dir),
            "--out-name",
            "game_reflex_poc_tauri",
            "--no-typescript",
        ],
        cwd=root,
        check=False,
    )
    if bindings.returncode != 0:
        return bindings.returncode

    print(f"Reflex Tauri WASM frontend generated in {output_dir}")
    return 0


if __name__ == "__main__":
    raise SystemExit(main())