#!/usr/bin/env bash
set -euo pipefail

repo_root="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
single_build_dir="${WEB_ENGINE_SINGLE_BUILD_DIR:-${repo_root}/build_web-single}"
pthread_build_dir="${WEB_ENGINE_PTHREAD_BUILD_DIR:-${repo_root}/build_web-pthread}"
public_root="${WEB_ENGINE_PUBLIC_ROOT:-${repo_root}/web/app/public}"
manifest_path="${WEB_ENGINE_MANIFEST_PATH:-${public_root}/engine-manifest.json}"

if [[ "$(realpath -m "${single_build_dir}")" == "$(realpath -m "${pthread_build_dir}")" ]]; then
  echo "single and pthread variants must come from independent build directories" >&2
  exit 1
fi

for build_dir in "${single_build_dir}" "${pthread_build_dir}"; do
  test -s "${build_dir}/web_engine.js"
  test -s "${build_dir}/web_engine.wasm"
done
test -s "${manifest_path}"

staging_dir="$(mktemp -d "${TMPDIR:-/tmp}/blender-web-engine-install.XXXXXX")"
trap 'rm -rf "${staging_dir}"' EXIT
for variant in single pthread; do
  mkdir -p "${staging_dir}/vendor/blender/${variant}"
done
cp "${single_build_dir}/web_engine.js" "${staging_dir}/vendor/blender/single/web_engine.js"
cp "${single_build_dir}/web_engine.wasm" "${staging_dir}/vendor/blender/single/web_engine.wasm"
cp "${pthread_build_dir}/web_engine.js" "${staging_dir}/vendor/blender/pthread/web_engine.js"
cp "${pthread_build_dir}/web_engine.wasm" "${staging_dir}/vendor/blender/pthread/web_engine.wasm"
cp "${manifest_path}" "${staging_dir}/engine-manifest.json"

node "${repo_root}/tools/web/update-engine-manifest.mjs" \
  "${staging_dir}/engine-manifest.json" \
  "${staging_dir}/vendor/blender/single" \
  "${staging_dir}/vendor/blender/pthread"
node "${repo_root}/tools/web/check-manifest-assets.mjs" \
  "${staging_dir}/engine-manifest.json" "${staging_dir}"

for variant in single pthread; do
  mkdir -p "${public_root}/vendor/blender/${variant}"
  install -m 0644 "${staging_dir}/vendor/blender/${variant}/web_engine.js" \
    "${public_root}/vendor/blender/${variant}/web_engine.js"
  install -m 0644 "${staging_dir}/vendor/blender/${variant}/web_engine.wasm" \
    "${public_root}/vendor/blender/${variant}/web_engine.wasm"
done
install -m 0644 "${staging_dir}/engine-manifest.json" "${manifest_path}"

sha256sum \
  "${public_root}/vendor/blender/single/web_engine.js" \
  "${public_root}/vendor/blender/single/web_engine.wasm" \
  "${public_root}/vendor/blender/pthread/web_engine.js" \
  "${public_root}/vendor/blender/pthread/web_engine.wasm"