#!/bin/bash

# builds a Godot project with all its native export config options
################################################################################
# get project 

[[ -z "$URI_PROJECT_SNAPSHOT" ]] && echo No URI_PROJECT_SNAPSHOT, exiting && exit 1

echo --------------------------------------------------------------------------------
echo Getting project - $URI_PROJECT_SNAPSHOT

DIR_BUILD=/build
DIR_PROJECT_ROOT=/project

wget $URI_PROJECT_SNAPSHOT && \
    tar -xf *.tar.gz -C $DIR_PROJECT_ROOT && \
    rm *.tar.gz

DIR_PROJECT=$(find $DIR_PROJECT_ROOT -type f -name project.godot | sed 's|/project.godot||')
PROJECT_ID=$(echo $DIR_PROJECT | awk -F/ '{print $NF}')

echo Project directory - $DIR_PROJECT

################################################################################
# execute project build

DIR_DEBUG=$DIR_BUILD/$PROJECT_ID/debug
DIR_RELEASE=$DIR_BUILD/$PROJECT_ID/release

GODOT="godot --headless --path $DIR_PROJECT"
EXPORT_PRESETS_CFG="$DIR_PROJECT/export_presets.cfg"

echo --------------------------------------------------------------------------------
echo Godot version - $($GODOT --headless --version)

# iterate through all build types present in config file
# if arg is given, override automated export discovery
if [[ -n "$1" ]]
then
    EXPORT_NAMES=$1
else
    EXPORT_NAMES=$(awk -F= '$1=="name"{print $2}' $EXPORT_PRESETS_CFG | sed 's/"//g')
fi

for EXPORT_NAME in $EXPORT_NAMES
do
    echo --------------------------------------------------------------------------------
    echo Starting project build for export $EXPORT_NAME

    # create build folders
    [[ -d $DIR_RELEASE/$EXPORT_NAME ]] || mkdir -p $DIR_RELEASE/$EXPORT_NAME
    [[ -d $DIR_DEBUG/$EXPORT_NAME ]] || mkdir -p $DIR_DEBUG/$EXPORT_NAME

    # get export name from config file
    EXPORT_FNAME=$(awk -vname=${EXPORT_NAME} -F= \
        '$1=="name" && $2~name{f=1} f==1 && $1=="export_path"{print $2;exit}' \
        $EXPORT_PRESETS_CFG | sed -e 's|^.*/||' -e 's/"//g')

    DEBUG_BUILD_PATH=$DIR_DEBUG/$EXPORT_NAME/$EXPORT_FNAME
    RELEASE_BUILD_PATH=$DIR_RELEASE/$EXPORT_NAME/$EXPORT_FNAME

    ######
    # do debug and release builds!
    echo $GODOT --export-debug "$EXPORT_NAME" $DEBUG_BUILD_PATH
    $GODOT --export-debug "$EXPORT_NAME" $DEBUG_BUILD_PATH

    echo $GODOT --export-release "$EXPORT_NAME" $RELEASE_BUILD_PATH
    $GODOT --export-release "$EXPORT_NAME" $RELEASE_BUILD_PATH

    ######
    # zip debug and release builds and shasum them
    for DIR in $DIR_DEBUG $DIR_RELEASE
    do
        ZIP_PATH=$DIR/$EXPORT_NAME
        echo
        echo Zipping $ZIP_PATH
        zip $EXPORT_NAME $ZIP_PATH && mv *.zip $DIR
    done
done

echo --------------------------------------------------------------------------------
echo Computing shasums for zip files

for DIR in $DIR_DEBUG $DIR_RELEASE
do
    $(cd $DIR && sha1sum *.zip >shasum.txt)

    echo
    echo SHASUM from $DIR -

    find $DIR -type f -name shasum.txt | xargs cat
done