#!/bin/sh

# This mechanism could offer simple variations on the build.
# Features could be productively grouped for smaller file size
# eg: I/O, Affine Transforms, Bitmap Operations, Gamma Curves, and Layers
# Initial Build includes everything except file IO, which is browser-incompatible
cd ${0%/*}
echo "Browserifying index.js..."
ENVIRONMENT=BROWSER \
browserify --ignore-missing Buffer -t envify -t uglifyify ../index.js > tmp1.js
echo "Translating for ES5..."
babel tmp1.js -o tmp.js --presets es2015,stage-0


# A TRUE hack. Use strict at the top seems to cause problems for ie10 interpreting this line from bmp-js:
# https://github.com/shaozilee/bmp-js/blob/master/lib/decoder.js
# module.exports = decode = function(bmpData) { ...
# For some reason, babeljs misses this "error" but IE can parse the code fine without strict mode.
echo "Removing Strict Mode."
sed -E "s/^\"use strict\";|ret=Z_BUF_ERROR;//" tmp.js > tmp-nostrict.js

echo "Adding Web Worker wrapper functions..."
cat tmp-nostrict.js src/jimp-wrapper.js > tmp.jimp.js
echo "Minifying browser/jimp.min.js..."
# uglifyjs tmp.jimp.js --compress warnings=false --mangle -o tmp.jimp.min.js
npm run-script minify-jimp


echo "Including the License and version number in the jimp.js and jimp.min.js"
PACKAGE_VERSION=$(cat ../package.json | grep version | head -1 | awk -F: '{ print $2 }' | sed 's/[", ]//g')
{ echo "/*";
echo "Jimp v$PACKAGE_VERSION";
echo "https://github.com/oliver-moran/jimp";
echo "Ported for the Web by Phil Seaton";
echo "";
cat ../LICENSE;
echo "*/";
echo ""; } > tmp.web_license.txt

(cat tmp.web_license.txt ; echo "var window = window || self;" ; cat tmp.jimp.js; ) > lib/jimp.js
(cat tmp.web_license.txt ; echo "var window = window || self;" ; cat tmp.jimp.min.js; ) > lib/jimp.min.js

echo "Updating package version in README.md"
sed -i.bak "s/v[0-9][0-9]*.[0-9][0-9]*.[0-9][0-9]*/v$PACKAGE_VERSION/g" README.md; rm README.md.bak

echo "Cleaning up...."
rm tmp*