#!/bin/bash

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

# Keep this path for calling _common.sh inside the execution's context of backup and restore scripts
source ../settings/scripts/_common.sh
source /usr/share/yunohost/helpers

#=================================================
# MANAGE SCRIPT FAILURE
#=================================================

ynh_clean_setup () {
	ynh_clean_check_starting
}
# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

#=================================================
# 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)
db_name=$(ynh_app_setting_get --app=$app --key=db_name)
db_user=$db_name

#=================================================
# CHECK IF THE APP CAN BE RESTORED
#=================================================
ynh_script_progression --message="Validating restoration parameters..." --weight=1

test ! -d $final_path \
	|| ynh_die --message="There is already a directory: $final_path "

#=================================================
# STANDARD RESTORATION STEPS
#=================================================
# RECREATE THE DEDICATED USER
#=================================================
ynh_script_progression --message="Recreating the dedicated system user..." --weight=1

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

#=================================================
# RESTORE THE APP MAIN DIR
#=================================================
ynh_script_progression --message="Restoring the app main directory..." --weight=4

ynh_restore_file --origin_path="$final_path"

touch "$final_path/local_settings.py"
ln -sf "$final_path/local_settings.py" "$final_path/venv/lib/$weblate_pypath/site-packages/weblate/local_settings.py"

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

#=================================================
# SPECIFIC RESTORATION
#=================================================
# REINSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Reinstalling dependencies..." --weight=40

# Define and install dependencies
ynh_exec_warn_less ynh_install_app_dependencies "$pkg_dependencies"

#=================================================
# RESTORE THE NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Restoring the NGINX web server configuration..."

ynh_restore_file --origin_path="/etc/nginx/conf.d/$domain.d/$app.conf"

#=================================================
# RESTORE THE POSTGRESQL DATABASE
#=================================================
ynh_script_progression --message="Restoring the PostgreSQL database..." --weight=5

db_pwd=$(ynh_app_setting_get --app=$app --key=psqlpwd)
ynh_psql_test_if_first_run
ynh_psql_setup_db --db_user=$db_user --db_name=$db_name --db_pwd=$db_pwd
ynh_psql_execute_as_root --sql="CREATE EXTENSION IF NOT EXISTS pg_trgm;" --database=$db_name
ynh_psql_connect_as --user=$db_user --password=$db_pwd --database=$db_name < ./db.sql

#=================================================
# INSTALL XXHASH
#=================================================
ynh_script_progression --message="Installing xxHash..."

tempdir="$(mktemp -d)"
ynh_setup_source --dest_dir=$tempdir --source_id="libxxhash"
pushd $tempdir
	make
	make install
popd
ynh_secure_remove --file="$tempdir"

#=================================================
# RESTORE VARIOUS FILES
#=================================================
ynh_script_progression --message="Restoring various files..." --weight=1

ynh_restore_file --origin_path="/etc/uwsgi/apps-available/$app.ini"

#=================================================
# RESTORE SYSTEMD
#=================================================
ynh_script_progression --message="Restoring the systemd configuration..." --weight=4

ynh_restore_file --origin_path="/etc/systemd/system/$app.service"
systemctl enable $app.service --quiet
ynh_restore_file  --origin_path="/etc/systemd/system/$app-celery.service"
systemctl enable "$app-celery" --quiet

#=================================================
# RESTORE THE LOGROTATE CONFIGURATION
#=================================================
ynh_script_progression --message="Restoring the logrotate configuration..."

mkdir -p "/var/log/$app"
ynh_restore_file --origin_path="/etc/logrotate.d/$app"

#=================================================
# INTEGRATE SERVICE IN YUNOHOST
#=================================================
ynh_script_progression --message="Integrating service in YunoHost..." --weight=3

yunohost service add $app --log="/var/log/$app/weblate.log"
yunohost service add "$app-celery" --log="/var/log/$app/weblate-celery-w1.log"

#=================================================
# START SYSTEMD SERVICE
#=================================================
ynh_script_progression --message="Starting a systemd service..." --weight=5

ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$app/weblate.log" --line_match="spawned uWSGI"
ynh_systemd_action --service_name="$app-celery" --action="start" --log_path="/var/log/$app/weblate-celery-celery.log" --line_match="mingle: all alone"

#=================================================
# GENERIC FINALIZATION
#=================================================
# 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="Restoration completed for $app" --last