#!/bin/bash
# Bundle the WASM SX kernel + platform + .sx files for serving.
#
# Output goes to hosts/ocaml/browser/dist/
# Serve dist/ at /wasm/ or similar path.

set -e
cd "$(dirname "$0")"

BUILD=../_build/default/browser
DIST=dist
ROOT=../../..

echo "=== Bundling SX WASM browser engine ==="

rm -rf "$DIST"
mkdir -p "$DIST/sx"

# 1. WASM kernel
cp "$BUILD/sx_browser.bc.wasm.js" "$DIST/"
cp -r "$BUILD/sx_browser.bc.wasm.assets" "$DIST/"

# Also copy js_of_ocaml version as fallback
cp "$BUILD/sx_browser.bc.js" "$DIST/"

# 2. Platform JS
cp sx-platform.js "$DIST/"

# 3. Spec modules
cp "$ROOT/spec/signals.sx"       "$DIST/sx/core-signals.sx"
cp "$ROOT/spec/render.sx"        "$DIST/sx/"
cp "$ROOT/web/web-signals.sx"    "$DIST/sx/signals.sx"
cp "$ROOT/web/deps.sx"           "$DIST/sx/"
cp "$ROOT/web/router.sx"         "$DIST/sx/"
cp "$ROOT/web/page-helpers.sx"   "$DIST/sx/"

# 3b. Freeze scope (signal persistence)
cp "$ROOT/lib/freeze.sx"         "$DIST/sx/"

# 4. Bytecode compiler + VM
cp "$ROOT/lib/bytecode.sx"       "$DIST/sx/"
cp "$ROOT/lib/compiler.sx"       "$DIST/sx/"
cp "$ROOT/lib/vm.sx"             "$DIST/sx/"

# 5. Web libraries (8 FFI primitives)
cp "$ROOT/web/lib/dom.sx"        "$DIST/sx/"
cp "$ROOT/web/lib/browser.sx"    "$DIST/sx/"

# 6. Web adapters
cp "$ROOT/web/adapter-html.sx"   "$DIST/sx/"
cp "$ROOT/web/adapter-sx.sx"     "$DIST/sx/"
cp "$ROOT/web/adapter-dom.sx"    "$DIST/sx/"

# 7. Boot helpers (platform functions in pure SX)
cp "$ROOT/web/lib/boot-helpers.sx" "$DIST/sx/"
cp "$ROOT/web/lib/hypersx.sx"      "$DIST/sx/"

# 7b. Test harness (for inline test runners)
cp "$ROOT/spec/harness.sx"         "$DIST/sx/"
cp "$ROOT/web/harness-reactive.sx" "$DIST/sx/"
cp "$ROOT/web/harness-web.sx"      "$DIST/sx/"

# 8. Web framework
cp "$ROOT/web/engine.sx"        "$DIST/sx/"
cp "$ROOT/web/orchestration.sx" "$DIST/sx/"
cp "$ROOT/web/boot.sx"          "$DIST/sx/"

# 9. CSSX (stylesheet language)
cp "$ROOT/sx/sx/cssx.sx"        "$DIST/sx/"

# Summary
WASM_SIZE=$(du -sh "$DIST/sx_browser.bc.wasm.assets" | cut -f1)
JS_SIZE=$(du -sh "$DIST/sx_browser.bc.js" | cut -f1)
SX_SIZE=$(du -sh "$DIST/sx" | cut -f1)
echo "  WASM kernel:  $WASM_SIZE (assets)"
echo "  JS fallback:  $JS_SIZE"
echo "  SX sources:   $SX_SIZE ($(ls "$DIST/sx/" | wc -l) files)"
echo "  Platform JS:  $(du -sh "$DIST/sx-platform.js" | cut -f1)"
echo ""
echo "  dist/ ready to serve"
echo ""
echo "  HTML usage:"
echo '    <script src="/wasm/sx_browser.bc.wasm.js"></script>'
echo '    <script src="/wasm/sx-platform.js"></script>'