VERSION="15_2"
OUTPUT="am2r_"${VERSION}
INPUT=""

# Cleanup in case the dirs exists 
if [ -d "$OUTPUT" ]; then
    rm -r ${OUTPUT}
fi

if [ -d "assets/" ]; then
    rm -rf assets/
fi

if [ -d "AM2RWrapper/" ]; then
    rm -rf AM2RWrapper/
fi

if [ -d "data/" ]; then
    rm -rf data/
fi
if [ -d "HDR_HQ_in-game_music/" ]; then
    rm -rf HDR_HQ_in-game_music
fi

echo "-------------------------------------------"
echo ""
echo "AM2R 1.5.2 Shell Autopatching Utility"
echo "Scripted by Miepee and help from Lojemiru"
echo ""
echo "-------------------------------------------"

#install dependencies: apktool and git and clone repo
pkg install subversion zip unzip xdelta3
if ! [ -f /data/data/com.termux/files/usr/bin/apktool ]; then
    wget https://github.com/Lexiie/Termux-Apktool/raw/master/apktool_2.3.4_all.deb
    dpkg -i apktool_2.3.4_all.deb > /data/data/com.termux/files/
    rm -f apktool_2.3.4_all.deb
fi

#download the patch data
svn export https://github.com/Miepee/AM2R-Autopatcher-Android/trunk/data

#check if termux-storage has been setup
if ! [ -d ~/storage ]; then
    #create if no
    termux-setup-storage
fi

echo ""

#check for AM2R_11.zip in downloads
if [ -f ~/storage/downloads/AM2R_11.zip ]; then
    echo "AM2R_11.zip found! Extracting to ${OUTPUT}"
    #extract the content to the am2r_xx folder
    unzip -q ~/storage/downloads/AM2R_11.zip -d "${OUTPUT}"
else
    echo "AM2R_11 not found. Place AM2R_11.zip (case sensitive) into your Downloads folder and try again."
    exit -1
fi

echo "Applying Android patch..."
xdelta3 -dfs "${OUTPUT}"/data.win data/droid.xdelta  "${OUTPUT}"/game.droid
#cp data/android/AM2RWrapper.apk utilities/android/

#delete unnecessary files
rm "${OUTPUT}"/D3DX9_43.dll "${OUTPUT}"/AM2R.exe "${OUTPUT}"/data.win 

#cp -RTp "${OUTPUT}"/ utilities/android/assets/
cp -p data/android/AM2R.ini "${OUTPUT}"/


# Music
#mkdir -p utilities/android/assets/lang
cp data/files_to_copy/*.ogg "${OUTPUT}"/

echo ""
echo "Install high quality in-game music? Increases filesize by 194 MB and may lag the game!"
echo ""
echo "[y/n]"

read -n1 INPUT
echo ""

if [ $INPUT = "y" ]; then
    echo "Downloading HQ music..."
    svn export https://github.com/Miepee/AM2R-Autopatcher-Android/trunk/HDR_HQ_in-game_music
    echo "Copying HQ music..."
    cp -f HDR_HQ_in-game_music/*.ogg "${OUTPUT}"/
    rm -rf HDR_HQ_in-game_music/
fi

echo "updating lang folder..."
#remove old lang
rm -R "${OUTPUT}"/lang/
#install new lang
cp -RTp data/files_to_copy/lang/ "${OUTPUT}"/lang/

echo "renaming music to lowercase..."
#I can't figure out a better way to mass rename files to lowercase
#so zipping them without compression and extracting them as all lowercase it is
#music needs to be all lowercase
zip -0qr temp.zip "${OUTPUT}"/*.ogg
rm "${OUTPUT}"/*.ogg
unzip -qLL temp.zip
rm temp.zip

echo "Packaging APK..."
#decompile the apk
apktool d -f data/android/AM2RWrapper.apk
#copy
mv "${OUTPUT}" assets
cp -Rp assets AM2RWrapper
#supply an edited yaml thing to not compress ogg's
wget https://github.com/Miepee/AM2R-Autopatcher-Android/raw/apktool.yml
mv -f apktool.yml AM2RWrapper/apktoo.yml
#build
apktool b AM2RWrapper -o AM2R-"${VERSION}".apk

# Cleanup
rm -R assets/ AM2RWrapper/ data/ HDR_HQ_in-game_music/
# Move APK
mv AM2R-"${VERSION}".apk ~/storage/downloads/AM2R-"${VERSION}".apk

echo "The operation was completed successfully and the APK can be found in your Downloads folder. See you next mission!"
echo "DON'T FORGET TO SIGN THE APK!!! You can use a tool like \"Apk Explorer & Editor\" for this."