#!/usr/bin/env bash
# Build the endless runner for WebAssembly via Emscripten.
# Usage: ./build_web.sh [--serve]
set -euo pipefail

# Flags required by raylib-sys for WASM compilation.
export EMCC_CFLAGS="-O3 -sUSE_GLFW=3 -sASSERTIONS=1 -sWASM=1 -sASYNCIFY -sGL_ENABLE_GET_PROC_ADDRESS=1 -sUSE_WEBGL2=1 -sMIN_WEBGL_VERSION=2 -sMAX_WEBGL_VERSION=2"

echo "Building for wasm32-unknown-emscripten..."
cargo build --target wasm32-unknown-emscripten --release

OUT=target/wasm32-unknown-emscripten/release

echo "Copying build artefacts to web/..."
cp "$OUT/endless_runner.js"   web/
cp "$OUT/endless_runner.wasm" web/

echo ""
echo "Build complete. Output in web/"

if [[ "${1-}" == "--serve" ]]; then
  echo "Serving at http://localhost:8080"
  cd web && python3 -m http.server 8080
fi