#!/bin/sh

if [[ "$BUILD_DIR" == *"IBDesignables"* ]] || [[ "$BUILD_DIR" == *"Previews"* ]] ; then
    echo "do nothing when building for IBDesignables/SwiftUI Previews builds";
    exit 0
fi

if [ "$CONFIGURATION" != "Release" ]; then
#    if [ "$(whoami)" == "hudson" ] || [ "$(whoami)" == "jenkins" ]; then
        export PATH=/opt/local/bin/:/opt/local/sbin:$PATH:/usr/local/bin:

        convertPath=`which convert`
        gsPath=`which gs`

        if [[ ! -f ${convertPath} || -z ${convertPath} ]]; then
          convertValidation=true;
        else
          convertValidation=false;
        fi

        if [[ ! -f ${gsPath} || -z ${gsPath} ]]; then
          gsValidation=true;
        else
          gsValidation=false;
        fi

        if [[ "$convertValidation" = true || "$gsValidation" = true ]]; then
          echo "WARNING: Skipping Icon versioning, you need to install ImageMagick and ghostscript (fonts) first, you can use brew to simplify process:"

          if [[ "$convertValidation" = true ]]; then
            echo "brew install imagemagick"
          fi
          if [[ "$gsValidation" = true ]]; then
            echo "brew install ghostscript"
          fi
        exit 0;
        fi

        if [[ -z "$MARKETING_VERSION" ]] ; then
          version="$MARKETING_VERSION"
        else
          version=$(/usr/libexec/PlistBuddy -c "Print CFBundleShortVersionString" "${INFOPLIST_FILE}")
        fi
        build_num=$(/usr/libexec/PlistBuddy -c "Print CFBundleVersion" "${INFOPLIST_FILE}")

        # Check if we are under a Git repo
        if [ -d .git ] || git rev-parse --git-dir > /dev/null 2>&1; then
            commit=`git rev-parse --short HEAD`
            branch=`git rev-parse --abbrev-ref HEAD`
        else
            # Check if we are under a Git repo

            svn info >/dev/null 2>&1
            if [ $? -eq 0 ]; then
                commit=`svnversion -n`
                branch=`svn info | grep '^URL:' | egrep -o '(tags|branches)/[^/]+|trunk' | egrep -o '[^/]+$'`
            fi
        fi;

        #SRCROOT=..
        #CONFIGURATION_BUILD_DIR=.
        #UNLOCALIZED_RESOURCES_FOLDER_PATH=.

        #commit="3783bab"
        #branch="master"
        #version="3.4"
        #build_num="9999"

        shopt -s extglob
        build_num="${build_num##*( )}"
        shopt -u extglob
        version_caption="${version}-dev"
        if [ ! -z $HUMANVERSION ] ; then
            version_caption="$HUMANVERSION"
        fi
        caption="$version_caption\nr${commit}"
        echo $caption

        function abspath() { pushd . > /dev/null; if [ -d "$1" ]; then cd "$1"; dirs -l +0; else cd "`dirname \"$1\"`"; cur_dir=`dirs -l +0`; if [ "$cur_dir" == "/" ]; then echo "$cur_dir`basename \"$1\"`"; else echo "$cur_dir/`basename \"$1\"`"; fi; fi; popd > /dev/null; }

        function processIcon() {
            base_file=$1

            cd "${CONFIGURATION_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}"
            base_path=`find . -name ${base_file}`

            real_path=$( abspath "${base_path}" )
            echo "base path ${real_path}"

            if [[ ! -f ${base_path} || -z ${base_path} ]]; then
              return;
            fi

            # TODO: if they are the same we need to fix it by introducing temp
            target_file=`basename $base_path`
            target_path="${CONFIGURATION_BUILD_DIR}/${UNLOCALIZED_RESOURCES_FOLDER_PATH}/${target_file}"

            base_tmp_normalizedFileName="${base_file%.*}-normalized.${base_file##*.}"
            base_tmp_path=`dirname $base_path`
            base_tmp_normalizedFilePath="${base_tmp_path}/${base_tmp_normalizedFileName}"

            stored_original_file="${base_tmp_normalizedFilePath}-tmp"
            if [[ -f ${stored_original_file} ]]; then
              echo "found previous file at path ${stored_original_file}, using it as base"
              mv "${stored_original_file}" "${base_path}"
            fi

            if [ $CONFIGURATION = "Release" ]; then
              cp "${base_path}" "$target_path"
              return 0;
            fi

            echo "Reverting optimized PNG to normal"
            # Normalize
            echo "xcrun -sdk iphoneos pngcrush -revert-iphone-optimizations -q ${base_path} ${base_tmp_normalizedFilePath}"
            xcrun -sdk iphoneos pngcrush -revert-iphone-optimizations -q "${base_path}" "${base_tmp_normalizedFilePath}"

            # move original pngcrush png to tmp file
            echo "moving pngcrushed png file at ${base_path} to ${stored_original_file}"
            #rm "$base_path"
            mv "$base_path" "${stored_original_file}"

            # Rename normalized png's filename to original one
            echo "Moving normalized png file to original one ${base_tmp_normalizedFilePath} to ${base_path}"
            mv "${base_tmp_normalizedFilePath}" "${base_path}"

            width=`identify -format %w ${base_path}`
            height=`identify -format %h ${base_path}`
            band_height=$((($height * 47) / 100))
            band_position=$(($height - $band_height))
            text_position=$(($band_position - 3))
            point_size=$(((17 * $width) / 100))

            echo "Image dimensions ($width x $height) - band height $band_height @ $band_position - point size $point_size"

            #
            # blur band and text
            #
            convert ${base_path} -blur 10x8 /tmp/blurred.png
            convert /tmp/blurred.png -gamma 0 -fill white -draw "rectangle 0,$band_position,$width,$height" /tmp/mask.png
            convert -size ${width}x${band_height} xc:none -fill 'rgba(0,0,0,0.2)' -draw "rectangle 0,0,$width,$band_height" /tmp/labels-base.png
            convert -background none -size ${width}x${band_height} -pointsize $point_size -fill white -gravity center -gravity South caption:"$caption" /tmp/labels.png

            convert ${base_path} /tmp/blurred.png /tmp/mask.png -composite /tmp/temp.png

            #
            # compose final image
            #
            filename=New${base_file}
            convert /tmp/temp.png /tmp/labels-base.png -geometry +0+$band_position -composite /tmp/labels.png -geometry +0+$text_position -geometry +${w}-${h} -composite "${target_path}"

            #
            # clean up
            #
            rm /tmp/temp.png
            rm /tmp/labels-base.png
            rm /tmp/labels.png
            rm /tmp/blurred.png
            rm /tmp/mask.png

            echo "Overlayed ${target_path}"
        }

        icon_count=`/usr/libexec/PlistBuddy -c "Print CFBundleIcons:CFBundlePrimaryIcon:CFBundleIconFiles" "${CONFIGURATION_BUILD_DIR}/${INFOPLIST_PATH}" | wc -l`
        last_icon_index=$((${icon_count} - 2))

        i=0
        while [  $i -lt $last_icon_index ]; do
          icon=`/usr/libexec/PlistBuddy -c "Print CFBundleIcons:CFBundlePrimaryIcon:CFBundleIconFiles:$i" "${CONFIGURATION_BUILD_DIR}/${INFOPLIST_PATH}"`

          if [[ $icon == *.png ]] || [[ $icon == *.PNG ]]
          then
            processIcon $icon
          else
            processIcon "${icon}.png"
            processIcon "${icon}@2x.png"
            processIcon "${icon}@3x.png"
          fi
          let i=i+1
        done

        # Workaround to fix issue#16 to use wildcard * to actually find the file
        # Only 72x72 and 76x76 that we need for ipad app icons
        processIcon "AppIcon72x72~ipad*"
        processIcon "AppIcon72x72@2x~ipad*"
        processIcon "AppIcon76x76~ipad*"
        processIcon "AppIcon76x76@2x~ipad*"
#    fi
fi