#!/bin/sh
ANDROID_RELEASE_BRANCH=android-xmake-release
RELEASE_BRANCH=rel-1.4
APP_DIRS="mobile/com.sap.sailing.android.tracking.app/ mobile/com.sap.sailing.android.buoy.positioning.app/ mobile/com.sap.sailing.racecommittee.app/"
APP_GRADLE_PROPERTIES="gradle.properties"
FILES2SIGN=cfg/files2sign.json
VERSION_FILE=cfg/VERSION
GIT_REMOTE=origin

# proxy can be requested with -x
OPTION_PROXY_SETTINGS=
OPTION_UPDATE_ANDROID_VERSIONS=1
OPTION_PERFORM_GIT_OPERATIONS=1

usage() {
  echo "$0 [-m -g -r <git-remote>]"
  echo ""
  echo "See more usage details in the sapsailing.com wiki at:"
  echo "  https://wiki.sapsailing.com/wiki/info/landscape/building-and-deploying#building-deploying-stopping-and-starting-server-instances"
  echo "-m Disable upgrading the versionCode and versionName"
  echo "-g Disable the final git push operation to $RELEASE_BRANCH"
  echo "-r The git remote; defaults to origin"
  exit 2
}

# Read and update versionCode in build.gradle
# Based on new versionCode the versionNme will also be updated.
increment_version_code_and_set_version_name() {
  DIR=$1
  GRADLE_PROPERTIES_FILE=$DIR$APP_GRADLE_PROPERTIES
  echo "Incrementing version code and version name for $DIR"
  
  OLD_VERSION_CODE=`grep 'appVersionCode=[0-9]*' $GRADLE_PROPERTIES_FILE | sed -e 's/^.*appVersionCode=\([0-9]*\).*$/\1/'`
  NEW_VERSION_CODE=$(($OLD_VERSION_CODE + 1))
  NEW_VERSION_NAME=1.4.$NEW_VERSION_CODE

  echo $DIR: OLD_VERSION_CODE is $OLD_VERSION_CODE, NEW_VERSION_CODE is $NEW_VERSION_CODE
  echo $DIR: Using NEW_VERSION_NAME=\"$NEW_VERSION_NAME\"
  sed --in-place -e "s/appVersionCode=$OLD_VERSION_CODE/appVersionCode=$NEW_VERSION_CODE/" "$GRADLE_PROPERTIES_FILE"
  sed --in-place -e "s/appVersionName=\([^\"]*\)/appVersionName=$NEW_VERSION_NAME/" "$GRADLE_PROPERTIES_FILE"
}

# Update files2sign.json with new updated version name 
# replace, e.g. "version": "1.4.xy" with new one
update_files2sign() {
  echo "Update files2sign.json with new versionName $NEW_VERSION_NAME"
  OLD_VERSION_NAMES=`grep '"version": "1.4.[0-9]*"' $FILES2SIGN | sed -e 's/^.*\"version\": \"\(1.4.[0-9]*\)\".*$/\1/'`
  for OLD_VERSION_NAME in $OLD_VERSION_NAMES; do
    sed --in-place -e "s/\"version\": \"$OLD_VERSION_NAME\"/\"version\": \"$NEW_VERSION_NAME\"/" "$FILES2SIGN"
  done
}

# Update the cfg/VERSION file with new updated version name
update_version_file() {
  echo "Update cfg/VERSION with new versionName $NEW_VERSION_NAME"
  echo $NEW_VERSION_NAME > "$VERSION_FILE"
}

# Parse the first argument for the help option
while [ "$1" != "" ]
do
  case $1 in
    -h | --help) usage;;
    *) break;;
  esac
done

# Parse the options
options="mgxr:"
while getopts "$options" option
do
  case $option in
    m) OPTION_UPDATE_ANDROID_VERSIONS=0;;
    g) OPTION_PERFORM_GIT_OPERATIONS=0;;
    g) OPTION_PERFORM_GIT_OPERATIONS=0;;
    r) GIT_REMOTE=$OPTARG;;
    \?) exit 4;;
  esac
done
shift $((OPTIND - 1))

# change directory to the git root, assuming this script is in the configuration/ subfolder
GIT_DIR="`dirname \"$0\"`/.."
echo GIT_DIR: $GIT_DIR
cd "$GIT_DIR"

git fetch $GIT_REMOTE
git checkout $ANDROID_RELEASE_BRANCH
git merge -m "Merging $GIT_REMOTE/$ANDROID_RELEASE_BRANCH" $GIT_REMOTE/$ANDROID_RELEASE_BRANCH
git fetch $GIT_REMOTE $RELEASE_BRANCH:$RELEASE_BRANCH
git merge -m "Merging $RELEASE_BRANCH into $ANDROID_RELEASE_BRANCH, probably incorporating version setting to -SNAPSHOT" $GIT_REMOTE/$RELEASE_BRANCH
if [ "$OPTION_PERFORM_GIT_OPERATIONS" = "1" ]; then
  git push $GIT_REMOTE $ANDROID_RELEASE_BRANCH:$ANDROID_RELEASE_BRANCH
fi

# Patch the build.gradle files to upgrade the versionCode sequential counter relevant for the PlayStore
# and the versionName which is what the user sees and which we expect to follow a major.minor version scheme,
# where this script increments the minor version by one
if [ "$OPTION_UPDATE_ANDROID_VERSIONS" = "1" ]; then
  for m in $APP_DIRS; do
    increment_version_code_and_set_version_name $m
  done

  update_files2sign

  update_version_file
fi

# Now commit the version changes and amend the commit using the change request ID tag:
git commit -a -m "Upgraded Android apps from version $OLD_VERSION_NAME to $NEW_VERSION_NAME"
git commit --amend -m "`git show -s --pretty=format:%s%n%n%b`"
if [ "$OPTION_PERFORM_GIT_OPERATIONS" = "1" ]; then
  git push $GIT_REMOTE $ANDROID_RELEASE_BRANCH:$RELEASE_BRANCH
fi

echo "Launch a stage build here: https://xmake-mobile-dev.wdf.sap.corp/job/sapsailingprogram/job/sapsailingcapture.android-SP-REL-common_directshipment/"
echo "using rel-1.4 as the Treeish to build."
echo "When done, create a BCP update ticket. See https://wiki.wdf.sap.corp/wiki/display/NAAS/Mobile+Patch+Releases \(remove the saprole parameter from the URL\)"
echo "Copy the description of, e.g., https://support.wdf.sap.corp/sap/support/message/1970099762 to start with and adjust versions and commit IDs."
echo "Make sure you have your MoMa stuff updated, particularly the Release Notes section."
echo "See, e.g., https://moma.mo.sap.corp/#/editAssemblyData/186"
echo "Then wait for feedback on the release build being ready for smoke testing, do the smoke tests and report back in BCP. That\'s it :-\)"