#!/bin/bash

#=================================================
# GENERIC START
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

source _common.sh
source experimental_helpers/ynh_add_swap
source /usr/share/yunohost/helpers

#=================================================
# LOAD SETTINGS
#=================================================
ynh_script_progression --message="Loading installation settings..." --weight=1

old_core_version=$(ynh_app_setting_get --app=$app --key=core_version)
core_version=$(ynh_app_upstream_version)

#=================================================
# CHECK VERSION
#=================================================
ynh_script_progression --message="Checking version..."

upgrade_type=$(ynh_check_app_version_changed)

#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# ENSURE DOWNWARD COMPATIBILITY
#=================================================
ynh_script_progression --message="Ensuring downward compatibility..." --weight=1

# Remove bazaar_extension if it exists
bazaar_extension=$(ynh_app_setting_get --app=$app --key=bazaar_extension)
if [ ! -z "$bazaar_extension" ]; then
	ynh_app_setting_delete --app=$app --key=bazaar_extension
fi

# Remove SSOwat extension if it exists
ssowat_extension=$(ynh_app_setting_get --app=$app --key=ssowat_extension)
if [ ! -z "$ssowat_extension" ]; then
	ynh_exec_warn_less ynh_composer_exec --phpversion=$phpversion --workdir=$install_dir --commands="remove tituspijean/flarum-ext-auth-ssowat"
	ynh_app_setting_delete --app=$app --key=ssowat_extension
fi

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================

if [ "$upgrade_type" == "UPGRADE_APP" ] && [ ynh_compare_current_package_version --comparison lt --version 1.0~ynh1 ]
then
	ynh_script_progression --message="Upgrading source files..."

	# Create a temporary directory
	tmpdir="$(mktemp -d)"
	cp -R $install_dir/* $tmpdir

	# Deleting current app directory
 	ynh_secure_remove --file="$install_dir"

	# Download, check integrity, uncompress and patch the source from app.src
	ynh_setup_source --dest_dir="$install_dir"

	# Copy config.php back into Flarum
	cp -f $tmpdir/config.php $install_dir

	# Copy assets from old app version. Can be either in root folder or in "public" folder
	if [ -d $tmpdir/assets ]; then
		cp -Rf $tmpdir/assets $install_dir/public
	fi
	if [ -d $tmpdir/public/assets ]; then
		cp -Rf $tmpdir/public/assets $install_dir/public
	fi

	# Clean temp directory
	ynh_secure_remove --file="$tmpdir"
fi

chmod 750 "$install_dir"
chmod -R o-rwx "$install_dir"
chown -R $app:www-data "$install_dir"

#=================================================
# PHP-FPM CONFIGURATION
#=================================================
ynh_script_progression --message="Upgrading php-fpm configuration..." --weight=1

# Create a dedicated php-fpm config
ynh_add_fpm_config --usage=low --footprint=low

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Upgrading NGINX web server configuration..." --weight=1

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# SPECIFIC UPGRADE
#=================================================
# ADD SWAP
#=================================================
ynh_script_progression --message="Adding swap..."

if [ ${PACKAGE_CHECK_EXEC:-0} -eq 0 ]; then
  ynh_add_swap --size=$swap_needed
fi

#=================================================
# COMPOSER AND FLARUM UPGRADE
#=================================================

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
 	ynh_script_progression --message="Installing composer dependencies..." --weight=5

	# Set right permissions
	chown -R $app:www-data $install_dir

	# Install Composer and Flarum
	ynh_exec_warn_less ynh_install_composer --phpversion=$phpversion --workdir=$install_dir

	if ynh_compare_current_package_version --comparison lt --version 1.1.0~ynh1
	then
		# Starting 1.0 (implemented for 1.1 in the package), version requirement is "*" for extensions
		# ... except for flarum/core, but that's handled in the next block.
		jq '.require | .[] = "*"' $install_dir/composer.json
	fi

	# Perform migrations and clear cache
	pushd $install_dir
		ynh_script_progression --message="Upgrading Flarum and its extensions..." --weight=1
		ynh_exec_warn_less ynh_composer_exec --phpversion=$phpversion --workdir=$install_dir --commands="require tituspijean/flarum-ext-auth-ldap:$ldap_version --no-update"
		ynh_exec_warn_less ynh_composer_exec --phpversion=$phpversion --workdir=$install_dir --commands="require flarum/core:$core_version --prefer-dist --update-no-dev -a --update-with-all-dependencies"
		ynh_exec_as $app php$phpversion flarum migrate
		ynh_exec_as $app php$phpversion flarum cache:clear
	popd
fi

ynh_app_setting_set $app core_version "$core_version"

#=================================================
# FLARUM EXTENSIONS
#=================================================

if ! ynh_exec_as $app php$phpversion flarum info | grep -q "tituspijean-auth-ldap" | grep -q $ldap_version;
then
	# Install and activate the LDAP auth extension
	activate_flarum_extension $db_name "tituspijean-auth-ldap"
	# Configure LDAP auth extension
	ynh_add_config --template="../conf/ldap.sql.template" --destination="../conf/ldap.sql"
	ynh_mysql_connect_as --user=$app --password="$db_pwd" --database=$db_name < ../conf/ldap.sql
fi

# Install, activate and set language extensions
case $language in
  fr)
    ynh_script_progression --message="Installing French extension..." --weight=2
    ynh_exec_warn_less ynh_composer_exec --phpversion=$phpversion --workdir=$install_dir --commands="require qiaeru/lang-french:*"
    activate_flarum_extension $db_name "qiaeru-lang-french"
    sql_command="UPDATE \`settings\` SET \`value\` = 'fr' WHERE \`settings\`.\`key\` = 'default_locale'"
    ynh_mysql_execute_as_root --sql="$sql_command" --database=$db_name
    ;;
  de)
    ynh_script_progression --message="Installing German extension..." --weight=2
    ynh_exec_warn_less ynh_composer_exec --phpversion=$phpversion --workdir=$install_dir --commands="require kakifrucht/flarum-de:*"
    activate_flarum_extension $db_name "kakifrucht-de"
    sql_command="UPDATE \`settings\` SET \`value\` = 'de' WHERE \`settings\`.\`key\` = 'default_locale'"
    ynh_mysql_execute_as_root --sql="$sql_command" --database=$db_name
    ;;
esac

ynh_print_info "You may need to manually enable your language extension in Flarum's admin panel."

# Clear cache
pushd $install_dir
	ynh_exec_as $app php$phpversion flarum cache:clear
popd

# Set files and directories permissions
chmod 750 "$install_dir"
chmod -R o-rwx "$install_dir"
chown -R $app:www-data "$install_dir"

#=================================================
# GENERIC FINALIZATION
#=================================================
# SETUP LOGROTATE
#=================================================
ynh_script_progression --message="Upgrading logrotate configuration..." --weight=1

# Use logrotate to manage app-specific logfile(s)
ynh_use_logrotate --non-append

#=================================================
# END OF SCRIPT
#=================================================

ynh_script_progression --message="Upgrade of $app completed" --last