#!/bin/bash

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

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

#=================================================
# LOAD SETTINGS
#=================================================

admin_mail=$(ynh_user_get_info --username=$admin --key="mail")
upgrade_type=$(ynh_check_app_version_changed)

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

# If redis_db doesn't exist, create it
if [ -z "${redis_db:-}" ]; then
	redis_db=$(ynh_redis_get_free_db)
	ynh_app_setting_set --app="$app" --key=redis_db --value="$redis_db"
fi

if [ -z "${secrets_peertube:-}" ]; then
	ynh_print_info --message="Generating and storing PeerTube secrets..."
	secrets_peertube=$(ynh_string_random --length=24)
	ynh_app_setting_set --app=$app --key=secrets_peertube --value=$secrets_peertube
fi

# Add PostgreSQL extension for v1.0.0-beta.10.pre.1
ynh_exec_warn_less ynh_psql_execute_as_root --sql="CREATE EXTENSION IF NOT EXISTS unaccent;" --database=$db_name
ynh_exec_warn_less ynh_psql_execute_as_root --sql="CREATE EXTENSION IF NOT EXISTS pg_trgm;" --database=$db_name

# Remove repository
ynh_secure_remove --file="/etc/apt/sources.list.d/yarn.list"

# Remove hook
if [[ -e "/usr/share/yunohost/hooks/conf_regen/15-nginx_$app" ]]
then
    ynh_secure_remove --file="/usr/share/yunohost/hooks/conf_regen/15-nginx_$app"
    yunohost tools regen-conf nginx
fi

# Remove old log file
ynh_secure_remove --file="$data_dir/logs"

# directory on filesystem must be renamed from videos/ to web-videos/ to represent the value of storage.web_videos
if [ -d "$data_dir/storage/videos" ]; then
    mv $data_dir/storage/videos $data_dir/storage/web-videos
fi

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

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

# In the past, the db was called peertube_peertube >_>
if [[ "${db_name:-}" == "peertube_peertube" ]]
then
	ynh_print_info --message="Renaming database..."
    ynh_psql_execute_as_root --sql="ALTER DATABASE $db_name RENAME TO $app;"
    db_name="$app"
	ynh_app_setting_set --app="$app" --key=db_name --value="$db_name"
fi

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

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

	# Download, check integrity, uncompress and patch the source from app.src
	ynh_setup_source --full_replace=1 --dest_dir="$install_dir" \
		--keep="config/production.yaml config/local-production.json config/local.yaml"
fi

chmod -R o-rwx "$install_dir"
chown -R $app:www-data "$install_dir"
chown -R $app:www-data "$data_dir"

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

ynh_exec_warn_less ynh_install_nodejs --nodejs_version=$nodejs_version

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

# Create a dedicated NGINX config
ynh_add_nginx_config

# Create a dedicated systemd config
ynh_add_systemd_config

mkdir -p "/var/log/$app"
chown -R $app:$app "/var/log/$app"

# Use logrotate to manage app-specific logfile(s)
ynh_use_logrotate --non-append

yunohost service add $app --description="Federated video streaming platform" --log="/var/log/$app/$app.log" --needs_exposed_ports $port_rtmp

#=================================================
# BUILD YARN DEPENDENCIES
#=================================================
ynh_script_progression --message="Building Yarn dependencies..."

pushd "$install_dir"
	ynh_use_nodejs
	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH yarn config set network-timeout 300000
	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH yarn install --production --pure-lockfile
	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH yarn cache clean
popd

#=================================================
# UPDATE A CONFIG FILE
#=================================================
ynh_script_progression --message="Updating configuration file..."

ynh_add_config --template="production.yaml" --destination="$install_dir/config/production.yaml"
chmod 400 "$install_dir/config/production.yaml"
chown $app:$app "$install_dir/config/production.yaml"

chmod 600 "$install_dir/config/local-production.json"
chown $app:$app "$install_dir/config/local-production.json"

#=================================================
# INSTALL LDAP PLUGIN
#=================================================
ynh_script_progression --message="Installing $app plugin..."

pushd "$install_dir"
	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH NODE_CONFIG_DIR="$install_dir/config" NODE_ENV=production $ynh_npm run plugin:install -- --npm-name peertube-plugin-auth-ldap
	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH NODE_CONFIG_DIR="$install_dir/config" NODE_ENV=production $ynh_npm run plugin:install -- --npm-name peertube-plugin-livechat
popd

#=================================================
# PEERTUBE UPGRADE MIGRATION SCRIPT
#=================================================

if ynh_compare_current_package_version --comparison lt --version 4.0.0~ynh1; then
	ynh_script_progression --message="Running Peertube 4.0.0 migration script..."
	pushd "$install_dir"
		ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH NODE_CONFIG_DIR="$install_dir/config" NODE_ENV=production $ynh_node dist/scripts/migrations/peertube-4.0.js
	popd
fi

if ynh_compare_current_package_version --comparison lt --version 4.2.0~ynh1; then
	ynh_script_progression --message="Running Peertube 4.2.0 migration script..."
	pushd "$install_dir"
		ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH NODE_CONFIG_DIR="$install_dir/config" NODE_ENV=production $ynh_node dist/scripts/migrations/peertube-4.2.js
	popd
fi

if ynh_compare_current_package_version --comparison lt --version 5.0.0~ynh1; then
	ynh_script_progression --message="Running Peertube 5.0.0 migration script..."
	pushd "$install_dir"
		ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH NODE_CONFIG_DIR="$install_dir/config" NODE_ENV=production $ynh_node dist/scripts/migrations/peertube-5.0.js
	popd
fi

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

ynh_systemd_action --service_name=$app --action="start" --log_path="systemd" --line_match="HTTP server listening on 127.0.0.1"

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

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