#!/bin/bash

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

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

upgrade_type=$(ynh_check_app_version_changed)

#=================================================
# 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" --line_match="Server closing"

#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing dependencies..." --weight=5

ynh_exec_warn_less ynh_exec_as $app RUSTUP_HOME="$install_dir"/.rustup CARGO_HOME="$install_dir"/.cargo bash -c 'curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -q -y'
export PATH="$install_dir/.cargo/bin:$PATH"
ynh_exec_warn_less ynh_exec_as $app env PATH=$PATH cargo install diesel_cli --no-default-features --features 'mysql'

#=================================================
# "REBUILD" THE APP (DEPLOY NEW SOURCES, RERUN NPM BUILD...)
#=================================================
# 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="$install_dir/build"
fi

# $install_dir will automatically be initialized with some decent
# permission by default ... however, you may need to recursively reapply
# ownership to all files such as after the ynh_setup_source step
chown -R $app:www-data "$install_dir"

#=================================================
# BUILD
#=================================================

ynh_script_progression --message="Building the sources (it will take some time)..." --weight=10

ynh_exec_as $app python -m venv "${install_dir}/venv"
(
	set +o nounset
	source "${install_dir}/venv/bin/activate"
	set -o nounset

	ynh_exec_warn_less ynh_exec_as $app env PATH=$PATH $install_dir/venv/bin/pip install --upgrade pip
	ynh_exec_warn_less ynh_exec_as $app env PATH=$PATH $install_dir/venv/bin/pip install --upgrade setuptools
    pushd $install_dir/build
        ynh_exec_warn_less ynh_exec_as $app env PATH=$PATH $install_dir/venv/bin/pip install -r requirements.txt
		ynh_exec_warn_less ynh_exec_as $app env PATH=$PATH $install_dir/venv/bin/pip install -r tools/tokenserver/requirements.txt
        ynh_exec_warn_less ynh_exec_as $app env PATH=$PATH cargo install --path ./syncserver --locked --root $install_dir  --no-default-features --features=syncstorage-db/mysql

		ynh_script_progression --message="Seeding the databases..."
		# syncstorage db
		diesel --database-url "mysql://$db_user:${db_pwd}@localhost/$db_name" migration --migration-dir syncstorage-mysql/migrations run

		# tokenserver db
		diesel --database-url "mysql://$db_user:${db_pwd}@localhost/$db_name_tokenserver" migration --migration-dir tokenserver-db/migrations run
    popd
)

ynh_secure_remove --file="$install_dir/.cargo"
ynh_secure_remove --file="$install_dir/.rustup"
ynh_secure_remove --file="$install_dir/.cache"
ynh_secure_remove --file="$install_dir/build"

#=================================================
# REAPPLY SYSTEM CONFIGURATIONS
#=================================================
ynh_script_progression --message="Upgrading system configurations related to $app..." --weight=1

# This should be a literal copypasta of what happened in the install's "System configuration" section
ynh_add_nginx_config

ynh_add_systemd_config

mkdir -p /var/log/$app
touch /var/log/$app/$app.log
chown -R $app: /var/log/$app

yunohost service add $app --description="Firefox Sync Server (Rust)" --log="/var/log/$app/$app.log"

# Use logrotate to manage application logfile(s)
ynh_use_logrotate

#=================================================
# RECONFIGURE THE APP (UPDATE CONF, APPLY MIGRATIONS...)
#=================================================
# UPDATE A CONFIG FILE
#=================================================
ynh_script_progression --message="Updating a configuration file..." --weight=1

ynh_add_config --template="config.toml" --destination="$install_dir/config.toml"

# FIXME: this should be handled by the core in the future
# You may need to use chmod 600 instead of 400,
# for example if the app is expected to be able to modify its own config
chmod 400 "$install_dir/config.toml"
chown $app:$app "$install_dir/config.toml"

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

ynh_systemd_action --service_name=$app --action="start" --log_path="/var/log/$app/$app.log" --line_match="Server running on http://127.0.0.1"

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

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