#!/usr/bin/env bash
set -e

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
OUT_DIR="$SCRIPT_DIR/../static"
OUT_WASM="$OUT_DIR/main.wasm"

mkdir -p "$OUT_DIR"

tinygo build -target=wasm -opt=z -no-debug -panic=trap -gc=leaking \
  -o "$OUT_WASM" "$SCRIPT_DIR"

# Optional post-process (run only if tools exist)
# command -v wasm-opt >/dev/null && wasm-opt -Oz --strip-debug --strip-dwarf --strip-producers \
#   -o "$OUT_WASM.tmp" "$OUT_WASM" && mv "$OUT_WASM.tmp" "$OUT_WASM"
# command -v wasm-strip >/dev/null && wasm-strip "$OUT_WASM"
# command -v brotli    >/dev/null && brotli -f -q 11 "$OUT_WASM" -o "$OUT_WASM.br"
# command -v gzip      >/dev/null && gzip -c -9 "$OUT_WASM" > "$OUT_WASM.gz"

# Copy TinyGo runtime
cp -f "$(tinygo env TINYGOROOT)/targets/wasm_exec.js" "$OUT_DIR/wasm_exec.js"