#!/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=3

app=$YNH_APP_INSTANCE_NAME

domain=$(ynh_app_setting_get --app=$app --key=domain)
path_url=$(ynh_app_setting_get --app=$app --key=path)
is_public=$(ynh_app_setting_get --app=$app --key=is_public)
final_path=$(ynh_app_setting_get --app=$app --key=final_path)

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

upgrade_type=$(ynh_check_app_version_changed)

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

if [ "${version}" = "20160501-7" ]; then
    public_site=$(ynh_app_setting_get --app=$app --key=public_site)
    # Fix is_public as a boolean value
    if [ "$public_site" = "Yes" ]; then
        ynh_app_setting_set --app=$app --key=is_public --value=1
        is_public=1
    elif [ "$public_site" = "No" ]; then
        ynh_app_setting_set --app=$app --key=is_public --value=0
        is_public=0
    fi
    ynh_app_setting_delete $app public_site

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

#=================================================
# BACKUP BEFORE UPGRADE THEN ACTIVE TRAP
#=================================================
ynh_script_progression --message="Backing up the app before upgrading (may take a while)..." --weight=6

# 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

#=================================================
# CHECK THE PATH
#=================================================

# Normalize the URL path syntax
path_url=$(ynh_normalize_url_path --path_url=$path_url)

#=================================================
# STANDARD UPGRADE STEPS
#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
	ynh_script_progression --message="Upgrading source files..." --weight=4

	# Download, check integrity, uncompress and patch the source from app.src
	# For this app sources are in app subdirectory 
	tmp_dir=$(mktemp -d)

	ynh_setup_source --dest_dir="$tmp_dir"
	# Dist is the compiled version. Other directories are source code and tools to build the program
	cp -a "$tmp_dir/dist/."  "$final_path/"
	ynh_secure_remove --file="$tmp_dir"
fi

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

# Create a dedicated nginx config
ynh_add_nginx_config

#=================================================
# SPECIFIC UPGRADE
#=================================================
# PATCH SOURCE
#=================================================

if [ "$upgrade_type" == "UPGRADE_APP" ]
then
	# Imgur is deactivated on the specific upstream selected, but this text is still here
	# Don't use a patch because it's minified js
	ynh_replace_string --match_string="are currently uploaded to imgur.*re working on changing this" --replace_string="size is limited" --target_file="$final_path/scripts/amd-app.js"
fi

#=================================================
# GENERIC FINALIZATION
#=================================================
# SECURE FILES AND DIRECTORIES
#=================================================

# Set permissions on app files
chown -R root:www-data "$final_path"
chmod -R 640 "$final_path"
find "$final_path" -type d -print0 | xargs -0 chmod 750

#=================================================
# SETUP SSOWAT
#=================================================
ynh_script_progression --message="Upgrading SSOwat configuration..." --weight=5

# Make app public if necessary
if [ $is_public -eq 1 ]
then
    ynh_app_setting_set --app=$app --key=skipped_uris --value="/"
fi

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

ynh_systemd_action --service_name=nginx --action=reload

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

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