#!/bin/bash
# set -e

DEBUG=0
VERSION=1.0.0
# SDK_INSTALLATION = -1 = None
# SDK_INSTALLATION = 0 = Basic
# SDK_INSTALLATION = 1 = Full

# SDK_UPDATE = 0 = Force Installtion if exists and not --none
# SDK_UPDATE = 1 = Update if SDK exists

# NO_JAVA = 0 = With Java Installation
# NO_JAVA = 1 = Skip Java Installation

# NO_APT = 0 = With APT Update
# NO_APT = 1 = Skip APT Update

SDK_INSTALLATION=0
SDK_UPDATE=1
NO_JAVA=0
NO_APT=0
ANDROID_SDK_EXISTS=0
[[ -d "$ANDROID_SDK_DIR" ]] && ANDROID_SDK_EXISTS=1

ANDROID_SDK_DIR=$HOME/android-sdk
ANDROID_LINUX_SDK_URL="https://dl.google.com/android/repository/sdk-tools-linux-3859397.zip"

fullPackages=("add-ons;addon-google_apis-google-15"
	"add-ons;addon-google_apis-google-16"
	"add-ons;addon-google_apis-google-17"
	"add-ons;addon-google_apis-google-18"
	"add-ons;addon-google_apis-google-19"
	"add-ons;addon-google_apis-google-21"
	"add-ons;addon-google_apis-google-22"
	"add-ons;addon-google_apis-google-23"
	"add-ons;addon-google_apis-google-24"
	"add-ons;addon-google_gdk-google-19"
	"build-tools;19.1.0"
	"build-tools;20.0.0"
	"build-tools;21.1.2"
	"build-tools;22.0.1"
	"build-tools;23.0.1"
	"build-tools;23.0.2"
	"build-tools;23.0.3"
	"build-tools;24.0.0"
	"build-tools;24.0.1"
	"build-tools;24.0.2"
	"build-tools;24.0.3"
	"build-tools;25.0.0"
	"build-tools;25.0.1"
	"build-tools;25.0.2"
	"build-tools;25.0.3"
	"build-tools;26.0.0"
	"cmake;3.6.3155560"
	"extras;android;gapid;1"
	"extras;android;gapid;3"
	"extras;android;m2repository"
	"extras;google;auto"
	"extras;google;google_play_services"
	"extras;google;instantapps"
	"extras;google;m2repository"
	"extras;google;market_apk_expansion"
	"extras;google;market_licensing"
	"extras;google;play_billing"
	"extras;google;simulators"
	"extras;google;webdriver"
	"extras;m2repository;com;android;support;constraint;constraint-layout-solver;1.0.0"
	"extras;m2repository;com;android;support;constraint;constraint-layout-solver;1.0.0-alpha2"
	"extras;m2repository;com;android;support;constraint;constraint-layout-solver;1.0.0-alpha3"
	"extras;m2repository;com;android;support;constraint;constraint-layout-solver;1.0.0-alpha4"
	"extras;m2repository;com;android;support;constraint;constraint-layout-solver;1.0.0-alpha5"
	"extras;m2repository;com;android;support;constraint;constraint-layout-solver;1.0.0-alpha6"
	"extras;m2repository;com;android;support;constraint;constraint-layout-solver;1.0.0-alpha7"
	"extras;m2repository;com;android;support;constraint;constraint-layout-solver;1.0.0-alpha8"
	"extras;m2repository;com;android;support;constraint;constraint-layout-solver;1.0.0-alpha9"
	"extras;m2repository;com;android;support;constraint;constraint-layout-solver;1.0.0-beta1"
	"extras;m2repository;com;android;support;constraint;constraint-layout-solver;1.0.0-beta2"
	"extras;m2repository;com;android;support;constraint;constraint-layout-solver;1.0.0-beta3"
	"extras;m2repository;com;android;support;constraint;constraint-layout-solver;1.0.0-beta4"
	"extras;m2repository;com;android;support;constraint;constraint-layout-solver;1.0.0-beta5"
	"extras;m2repository;com;android;support;constraint;constraint-layout-solver;1.0.1"
	"extras;m2repository;com;android;support;constraint;constraint-layout-solver;1.0.2"
	"extras;m2repository;com;android;support;constraint;constraint-layout;1.0.0"
	"extras;m2repository;com;android;support;constraint;constraint-layout;1.0.0-alpha2"
	"extras;m2repository;com;android;support;constraint;constraint-layout;1.0.0-alpha3"
	"extras;m2repository;com;android;support;constraint;constraint-layout;1.0.0-alpha4"
	"extras;m2repository;com;android;support;constraint;constraint-layout;1.0.0-alpha5"
	"extras;m2repository;com;android;support;constraint;constraint-layout;1.0.0-alpha6"
	"extras;m2repository;com;android;support;constraint;constraint-layout;1.0.0-alpha7"
	"extras;m2repository;com;android;support;constraint;constraint-layout;1.0.0-alpha8"
	"extras;m2repository;com;android;support;constraint;constraint-layout;1.0.0-alpha9"
	"extras;m2repository;com;android;support;constraint;constraint-layout;1.0.0-beta1"
	"extras;m2repository;com;android;support;constraint;constraint-layout;1.0.0-beta2"
	"extras;m2repository;com;android;support;constraint;constraint-layout;1.0.0-beta3ver;1.0.0-beta3"
	"extras;m2repository;com;android;support;constraint;constraint-layout;1.0.0-beta4"
	"extras;m2repository;com;android;support;constraint;constraint-layout;1.0.0-beta5"
	"extras;m2repository;com;android;support;constraint;constraint-layout;1.0.1"
	"extras;m2repository;com;android;support;constraint;constraint-layout;1.0.2"
	"lldb;2.0"
	"lldb;2.1"
	"lldb;2.2"
	"lldb;2.3"
	"patcher;v4"
	"platforms;android-26")

basicPackages=("add-ons;addon-google_apis-google-24"
	"add-ons;addon-google_gdk-google-19"
	"build-tools;26.0.0"
	"cmake;3.6.3155560"
	"extras;android;gapid;3"
	"extras;android;m2repository"
	"extras;google;auto"
	"extras;google;google_play_services"
	"extras;google;instantapps"
	"extras;google;m2repository"
	"extras;google;market_apk_expansion"
	"extras;google;market_licensing"
	"extras;google;play_billing"
	"extras;google;simulators"
	"extras;google;webdriver"
	"extras;m2repository;com;android;support;constraint;constraint-layout-solver;1.0.2"
	"extras;m2repository;com;android;support;constraint;constraint-layout;1.0.2"
	"lldb;2.3"
	"patcher;v4"
	"platforms;android-26"
	"ndk-bundle"
	"tools"
	"platform-tools")

function printAndSleep() {
	((counter++))
	echo "
	###### $1 ######
	"
	sleep 1
}

# Prints script version
function printVersion() {
	echo "
Android SDK Setup for Linux
Version $VERSION
"
	exit 0
}

# Updates machine APT
function updateApt() {
	printAndSleep "Updating apt"
	apt-get -y update
}

# Installs Java-8 (OpenJdk-8)
function installJava() {
	JAVA_VER=$(java -version 2>&1 | sed -n ';s/.* version "\(.*\)\.\(.*\)\..*"/\1\2/p;')
	if [ "$JAVA_VER" -ge 18 ]; then
		printAndSleep "Java $JAVA_VER Found"
	else
		printAndSleep "Installing OpenJdk 8"
		apt-get -y install openjdk-8-jdk
	fi
}

#Installs unzip tool
function installUnzip() {
	if ! type "unzip" &>/dev/null; then
		printAndSleep "Installing Unzip tool"
		apt-get -y install unzip
	fi
}

function updateAndroidHomeVar() {
	printAndSleep "Adding ANDROID_HOME to environmental variables"

	echo "" >>~/.bashrc
	echo "export ANDROID_HOME=\"$ANDROID_SDK_DIR\"" >>~/.bashrc
	echo "" >>~/.bashrc
	echo "export PATH=\"${PATH}:${ANDROID_SDK_DIR}/tools/:${ANDROID_SDK_DIR}/platform-tools/\"" >>~/.bashrc
}

#Accept Android SDK Licenses
function acceptAndroidSdkLicenses() {
	# navigate into our directory
	cd $ANDROID_SDK_DIR

	printAndSleep "Accepting Android SDK licenses"
	mkdir -p licenses/
	echo -e "\n8933bad161af4178b1185d1a37fbf41ea5269c55" >"licenses/android-sdk-license"
	echo -e "\n84831b9409646a918e30573bab4c9c91346d8abd" >"licenses/android-sdk-preview-license"
	echo -e "\n152e8995e4332c0dc80bc63bf01fe3bbccb0804a
d975f751698a77b662f1254ddbeed3901e976f5a" >"licenses/intel-android-extra-license"
}

# Updates already installed Android SDK packages
function updateAndroidSdkPackages() {
	printAndSleep "Checking for Android SdkManager updates..."

	cd $ANDROID_SDK_DIR/tools/bin
	./sdkmanager --update
}

# Updates installed Android SDK
function updateAndroidSdk() {
	[ $ANDROID_SDK_EXISTS == 0 ] && echo "Android SDK not found, please install --basic or --full" && exit 1
	printAndSleep "Updating Android SDK"

	acceptAndroidSdkLicenses
	updateAndroidSdkPackages
}

#Downloads Android Linux SDK tools to the $home directory
function downloadLinuxAndroidSdk() {
	printAndSleep "Downloading linux android sdk tools"
	wget -nc -O $HOME/sdk-tools-linux.zip $ANDROID_LINUX_SDK_URL
}

#1- Create sdk directory
#2- Unzip android linux sdk tools
function unzipAndroidLinuxSdk() {
	mkdir -p $ANDROID_SDK_DIR

	printAndSleep "unzipping linux android sdk tools"
	unzip -o $HOME/sdk-tools-linux.zip -d $ANDROID_SDK_DIR
}

function installAndroidSdkPackages() {
	printAndSleep "Installing Android SDK Packages"
	packages=("$@")
	cd $ANDROID_SDK_DIR/tools/bin
	for package in "${packages[@]}"; do
		printAndSleep "Installing $package"
		./sdkmanager "$package"
	done
}

function addMissingRepositoriesFile() {
	[ ! -f $HOME/.android/repositories.cfg ] && echo "### User Sources for Android SDK Manager" >>$HOME/.android/repositories.cfg && echo "count=0" >>$HOME/.android/repositories.cfg
}

function installAndroidSdk() {
	installUnzip
	if [ $ANDROID_SDK_EXISTS == 0 ]; then
		downloadLinuxAndroidSdk
		unzipAndroidLinuxSdk
		updateAndroidHomeVar
	fi
	acceptAndroidSdkLicenses
	addMissingRepositoriesFile

	packages=("$@")
	installAndroidSdkPackages "${packages[@]}"

	du -hs $ANDROID_SDK_DIR
}

# Install basic most common android sdk packages
function installBasicAndroidSdk() {
	printAndSleep "Installing Basic Android SDK"
	installAndroidSdk "${basicPackages[@]}"
}

# Install basic full android sdk packages
function installFullAndroidSdk() {
	printAndSleep "Installing Full Android SDK"
	installAndroidSdk "${fullPackages[@]}"
}

while [[ $# -gt 0 ]]; do
	key="$1"

	case $key in
		-n | --none)
			SDK_INSTALLATION=-1
			;;
		-b | --basic)
			SDK_INSTALLATION=0
			;;
		-f | --full)
			SDK_INSTALLATION=1
			;;
		-u | --update)
			SDK_UPDATE=1
			;;
		-j | --no-java)
			NO_JAVA=1
			;;
		-a | --no-apt)
			NO_APT=1
			;;
		-v | --version)
			printVersion
			;;
		*) ;; # unknown option
	esac
	shift # past argument or value
done

if [ $DEBUG == 1 ]; then
	SDK_INSTALLATION=1
	SDK_UPDATE=1
	NO_JAVA=0
	NO_APT=0
fi

echo SDK_INSTALLATION = "${SDK_INSTALLATION}"
echo NO_JAVA = "${NO_JAVA}"
echo NO_APT = "${NO_APT}"
echo ANDROID_SDK_EXISTS = "${ANDROID_SDK_EXISTS}"
echo SDK_UPDATE = "${SDK_UPDATE}"

[ $NO_APT == 0 ] && updateApt
[ $NO_JAVA == 0 ] && installJava

if [ $ANDROID_SDK_EXISTS == 1 ] && [ $SDK_UPDATE == 1 ] && [ $SDK_INSTALLATION -gt -1 ]; then
	updateAndroidSdk
elif [ $SDK_UPDATE == 1 ] && [ $SDK_INSTALLATION == -1 ]; then
	updateAndroidSdk
else
	if [ $SDK_INSTALLATION == -1 ]; then
		printAndSleep "Skipping Android SDK Installation"
	elif [ $SDK_INSTALLATION == 0 ]; then
		installBasicAndroidSdk
		updateAndroidSdk
	elif [ $SDK_INSTALLATION == 1 ]; then
		installFullAndroidSdk
		updateAndroidSdk
	fi
fi