#!/bin/bash

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

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

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

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get --app=$app --key=domain)
path_url=$(ynh_app_setting_get --app=$app --key=path)
admin=$(ynh_app_setting_get --app=$app --key=admin)
final_path=$(ynh_app_setting_get --app=$app --key=final_path)
password=$(ynh_app_setting_get --app=$app --key=password)
sitename=$(ynh_app_setting_get --app=$app --key=sitename)
random=$(ynh_app_setting_get --app=$app --key=random)
port_lemmy=$(ynh_app_setting_get --app=$app --key=port_lemmy)
port_ui=$(ynh_app_setting_get --app=$app --key=port_ui)
port_pictrs=$(ynh_app_setting_get --app=$app --key=port_pictrs)
port_iframely=$(ynh_app_setting_get --app=$app --key=port_iframely)
version=$(curl -s https://api.github.com/repos/docker/compose/releases/latest | grep 'tag_name' | cut -d\" -f4)


#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================
ynh_script_progression --message="Backing up the app before upgrading (may take a while)..."  --weight=1

# Backup the current version of the app
ynh_backup_before_upgrade
ynh_clean_setup () {
	# Restore it if the upgrade fails
	ynh_restore_upgradebackup
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

#=================================================
# STANDARD UPGRADE STEPS
#=================================================


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

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
	ynh_script_progression --message="Upgrading source files..."  --weight=1

	# Download, check integrity, uncompress and patch the source from app.src
	cp -f ../conf/docker-compose.yml       "$final_path/docker-compose.yml"
	cp -f ../conf/lemmy.hjson              "$final_path/lemmy.hjson"
	cp -f ../conf/iframely.config.local.js "$final_path/iframely.config.local.js"
	pushd "$final_path"
		chown -R 991:991 volumes/pictrs
	popd
fi

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

# Create a dedicated NGINX config
ynh_add_nginx_config 'port_lemmy port_ui port_pictrs port_iframely'

#=================================================
# UPGRADE DEPENDENCIES
#=================================================
ynh_script_progression --message="Upgrading dependencies..." --weight=1

#ynh_install_app_dependencies $pkg_dependencies

# Install Docker and compose
curl -sSL https://get.docker.com | sh
systemctl enable docker --quiet
curl -L https://github.com/docker/compose/releases/download/${version}/docker-compose-`uname -s`-`uname -m` -o /usr/local/bin/docker-compose


#=================================================
# SPECIFIC UPGRADE
#=================================================


#=================================================
# MODIFY A CONFIG FILE
#=================================================


ynh_replace_string --match_string="match_string" --replace_string="replace_string" --target_file="$final_path/CONFIG_FILE"


ynh_replace_string --match_string="__ADMIN__" --replace_string="$admin" --target_file="$final_path/lemmy.hjson"
ynh_replace_string --match_string="__ADMIN_PASS__" --replace_string="$password" --target_file="$final_path/lemmy.hjson"
ynh_replace_string --match_string="__NAME__" --replace_string="$sitename" --target_file="$final_path/lemmy.hjson"
ynh_replace_string --match_string="__DOMAIN__" --replace_string="$domain" --target_file="$final_path/lemmy.hjson"
ynh_replace_string --match_string="__RANDOM__" --replace_string="$random" --target_file="$final_path/lemmy.hjson"
ynh_replace_string --match_string="__PORT__LEMMY__" --replace_string="$port_lemmy" --target_file="$final_path/docker-compose.yml"
ynh_replace_string --match_string="__PORT_UI__" --replace_string="$port_ui" --target_file="$final_path/docker-compose.yml"
ynh_replace_string --match_string="__PORT_PICTRS__" --replace_string="$port_pictrs" --target_file="$final_path/docker-compose.yml"
ynh_replace_string --match_string="__PORT_IFRAMELY__" --replace_string="$port_iframely" --target_file="$final_path/docker-compose.yml"
ynh_replace_string --match_string="__DOMAIN__" --replace_string="$domain" --target_file="$final_path/iframely.config.local.js"

#=================================================
# RELOAD NGINX
#=================================================
ynh_script_progression --message="Reloading NGINX web server..."  --weight=1

ynh_systemd_action --service_name=nginx --action=reload

#=================================================
# Run Lemmy through Docker
#=================================================
chown -R $(whoami) /usr/local/bin
cd "$final_path" && docker-compose up -d

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

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