#!/bin/sh
#
# FreeScout upgrade script.
# 
# If you need you can create /tools/pre_update.sh script which will be launched in the beginning.

DATE_TIME=`date +%Y-%m-%d_%H:%M:%S`
echo -e "Starting upgrading: \e[32m${DATE_TIME}\e[0m";

# Check PHP version
php_v=`php -v | grep 'PHP [78]' | wc -l`
if [ $php_v != 1 ]; then
	echo -e "\e[32mChecking PHP version...\e[0m";
	php -v
	echo -e "\e[31mInvalid PHP version (PHP 7/8 is required)\e[0m";
	exit;
fi

echo -e "\e[33mMake sure to create a backup of the application before you continue.\e[0m";

# Determine project root
TOOLS_DIR=`which $0 | xargs dirname`;
if [ $TOOLS_DIR = '' ]; then
	echo -e "\e[31mCould not determine project root folder.\e[0m";
	exit;
fi
PROJECT_ROOT="${TOOLS_DIR}/..";

cd $PROJECT_ROOT;
PROJECT_ROOT=`pwd`;
echo -e "Application root: \e[32m${PROJECT_ROOT}\e[0m"

if [ -f "${TOOLS_DIR}/pre_update.sh" ]; then
	echo "Including pre_update.sh"
	source "${TOOLS_DIR}/pre_update.sh";
fi

#if [ -f "${PROJECT_ROOT}/.gitcommit" ]; then
#	gitcommit=`more "${PROJECT_ROOT}/.gitcommit"`
#	echo -e "Last commit: \e[32m${gitcommit}\e[0m";
#fi

# Check if git is installed
git_installed=`command -v git`;
if [ -z "$git_installed" ]; then
	echo -e "\e[31mGit is not installed. Please intall Git and restart upgrade.\e[0m";
	exit;
fi

# Check if there is a Git repo in the project folder
git_inited=`git status | grep 'On branch' | wc -l`

if [ $git_inited != 1 ]; then

	# Initizalize Git and install latest version of the app
	
	printf "\nGit repository is not initizalized yet. Would you like to install the latest version of the application via Git (this will replace existing files)? (Y/n) [n]:"
	read confirm_gitinit;
	if [ $confirm_gitinit != "Y" ]; then
	    exit;
	fi
	
	git init
	git remote add origin https://github.com/freescout-helpdesk/freescout.git
	git fetch

	# If user stop here next time he will get: "Your Git repository is on a wrong branch"
	#printf "\nReady to install application from remote repository. Continue? (Y/n) [n]:"
	#read confirm_checkout;
	#if [ $confirm_checkout != "Y" ]; then
	#    exit;
	#fi
	git checkout -t -f origin/dist
else
	# Update app via Git
	
	# Check branch
	branch=`git branch | grep '* ' | sed 's#* ##g'`;
	if [[ $branch != 'dist' && $branch != 'master' ]]; then
		echo -e "\e[31mYour Git repository is on a wrong branch: ${branch}. Upgrading is possible only for dist or master branches. Please switch to the correct branch and restart upgdate.\e[0m";
		exit;
	fi

	echo -e "Current branch: \e[32m${branch}\e[0m";

	git fetch

	new_commits=`git log "$branch..origin/$branch" --pretty=format:"%h %ad | %s%d [%an]" --graph --date=short | wc -l`;
	if [ $new_commits = 0 ]; then
		echo -e "\e[32mYou already have the latest version of the application, no upgrade needed.\e[0m";
		exit;
	fi

	# Check if there are uncommited files
	has_unstaged=`git status | grep -E '(Changes not staged for commit|Untracked files)' | wc -l`
	if [ $has_unstaged = 1 ]; then
		git status;
		printf "\nThere are uncommitted files, they may be overwritten during upgrade. Continue? (Y/n) [n]:"
		read confirm_overwrite
		if [ $confirm_overwrite != "Y" ]; then
		    exit;
		fi
		git checkout .
	fi

	printf "\nNew commits:\n";
	git log "$branch..origin/$branch" --pretty=format:"%h %ad | %s%d [%an]" --graph --date=short

	printf "\nPull updates and continue? (Y/n) [n]:"
	read confirm_pull
	if [ $confirm_pull != "Y" ]; then
	    exit;
	fi

	git pull -f

	printf "\nPulling updates finished. Continue? (Y/n) [n]:"
	read confirm_continue
	if [ $confirm_continue != "Y" ]; then
	    exit;
	fi

	printf "\nStatus:\n"
	git status

	# If branch is master, run composer install
	if [ $branch = 'master' ]; then
		printf "\nComposer dependencies will be installed. Continue? (Y/n) [n]:"
		read confirm_install
		if [ $confirm_install != "Y" ]; then
		    exit;
		fi

		# Check if composer intalled
		composer_installed=`composer -V | grep version | wc -l`
		if [ $composer_installed != 1 ]; then
			echo -e "\e[31mComposer command not found. Please intall composer (https://getcomposer.org/download/) and restart upgrade.\e[0m";
			exit;
		fi

		composer install;

		printf "\nStatus:\n"
		git status
	fi

fi


printf "\nClearing cache:\n"
php artisan freescout:clear-cache
#php artisan package:discover

printf "Run DB migration and continue? (Y/n) [n]:"
read confirm_migrate
if [ $confirm_migrate != "Y" ]; then
    exit;
fi
php artisan migrate


php artisan queue:restart

if [ -f "${TOOLS_DIR}/post_update.sh" ]; then
	echo "Including post_update.sh"
	source "${TOOLS_DIR}/post_update.sh";
fi