#!/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)
final_path=$(ynh_app_setting_get --app=$app --key=final_path)
port=$(ynh_app_setting_get --app=$app --key=port)

max_upload_size=$(ynh_app_setting_get --app=$app --key=max_upload_size)
feed_title=$(ynh_app_setting_get --app=$app --key=feed_title)
feed_description=$(ynh_app_setting_get --app=$app --key=feed_description)
author_name=$(ynh_app_setting_get --app=$app --key=author_name)
author_email=$(ynh_app_setting_get --app=$app --key=author_email)
copyright_text=$(ynh_app_setting_get --app=$app --key=copyright_text)

#=================================================
# CHECK VERSION
#=================================================

upgrade_type=$(ynh_check_app_version_changed)

#=================================================
# 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
#=================================================
# STOP SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Stopping a systemd service..." --weight=1

ynh_systemd_action --service_name=$app --action="stop" --log_path="/var/log/$app/$app.log"

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

# If max_upload_size doesn't exist, create it
if [ -z "$max_upload_size" ]; then
	max_upload_size=100
	ynh_app_setting_set --app=$app --key=max_upload_size --value=$max_upload_size
fi

# If feed_title doesn't exist, create it
if [ -z "$feed_title" ]; then
	feed_title="Feed title"
	ynh_app_setting_set --app=$app --key=feed_title --value=$feed_title
fi

# If feed_description doesn't exist, create it
if [ -z "$feed_description" ]; then
	feed_description="Feed description"
	ynh_app_setting_set --app=$app --key=feed_description --value=$feed_description
fi

# If author_name doesn't exist, create it
if [ -z "$author_name" ]; then
	author_name="Author Name"
	ynh_app_setting_set --app=$app --key=author_name --value=$author_name
fi

# If author_email doesn't exist, create it
if [ -z "$author_email" ]; then
	author_email="author@somewhere.example"
	ynh_app_setting_set --app=$app --key=author_email --value=$author_email
fi

# If copyright_text doesn't exist, create it
if [ -z "$copyright_text" ]; then
	copyright_text="Copyright Text"
	ynh_app_setting_set --app=$app --key=copyright_text --value=$copyright_text
fi


# Cleaning legacy permissions
if ynh_legacy_permissions_exists; then
	ynh_legacy_permissions_delete_all

	ynh_app_setting_delete --app=$app --key=is_public
fi

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Making sure dedicated system user exists..." --weight=1

# Create a dedicated user (if not existing)
ynh_system_user_create --username=$app --home_dir="$final_path"

#=================================================
# 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
	ynh_setup_source --dest_dir="$final_path"  --source_id=$YNH_ARCH --keep="config.json"
fi

chmod 750 "$final_path"
chmod -R o-rwx "$final_path"
chown -R $app:www-data "$final_path"
chmod +x "$final_path/tube"

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

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# SETUP SYSTEMD
#=================================================
ynh_script_progression --message="Upgrading systemd configuration..." --weight=1

# Create a dedicated systemd config
ynh_add_systemd_config

#=================================================
# 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

#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..." --weight=1

yunohost service add $app --description="Video Sharing App" --log="/var/log/$app/$app.log"

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..." --weight=1

ynh_systemd_action --service_name=$app --action="start" --log_path="systemd"

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

ynh_systemd_action --service_name=nginx --action=reload

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

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