#!/bin/bash

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

source _common.sh
source /usr/share/yunohost/helpers
source ynh_add_secure_repos__3

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

# Exit if an error occurs during the execution of the script
ynh_abort_if_errors

#=================================================
# RETRIEVE ARGUMENTS FROM THE MANIFEST
#=================================================

domain=$YNH_APP_ARG_DOMAIN
path_url="/"
admin_email=$YNH_APP_ARG_EMAIL
admin_pass=$(ynh_string_random 24)
is_public=$YNH_APP_ARG_IS_PUBLIC

app=$YNH_APP_INSTANCE_NAME

#=================================================
# CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
#=================================================
ynh_print_info "Validating installation parameters..."

final_path=/var/www/$app
test ! -e "$final_path" || ynh_die "This path already contains a folder"

# Check web path availability
ynh_webpath_available "$domain" "$path_url"
# Register (book) web path
ynh_webpath_register "$app" "$domain" "$path_url"

#=================================================
# STORE SETTINGS FROM MANIFEST
#=================================================
ynh_print_info "Storing installation settings..."

ynh_app_setting_set "$app" domain      "$domain"
ynh_app_setting_set "$app" admin_email "$admin_email"
ynh_app_setting_set "$app" admin_pass  "$admin_pass"
ynh_app_setting_set "$app" is_public   "$is_public"

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# FIND AND OPEN A PORT
#=================================================
ynh_print_info "Configuring firewall..."

# Find a free port
port=$(ynh_find_port 9000)
ynh_app_setting_set "$app" port "$port"

#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_print_info "Installing dependencies..."

# Install nodejs
ynh_install_nodejs 8

# Install dependencies
ynh_install_app_dependencies $pkg_dependencies

# Install ffmpeg from backports for Debian Jessie and from main for others
if [ "$(lsb_release --codename --short)" == "jessie" ]; then
	ynh_install_extra_app_dependencies --repo="deb http://httpredir.debian.org/debian jessie-backports main" --package="ffmpeg"
else
	ynh_add_app_dependencies --package="ffmpeg"
fi

# Install Yarn
ynh_install_extra_app_dependencies --repo="deb https://dl.yarnpkg.com/debian/ stable main" --package="yarn" --key="https://dl.yarnpkg.com/debian/pubkey.gpg"

#=================================================
# CREATE A POSTGRESQL DATABASE
#=================================================
ynh_print_info "Creating a PostgreSQL database..."

db_name=$(ynh_sanitize_dbid $app)
db_pwd=$(ynh_string_random 30)
ynh_app_setting_set "$app" psql_db "$db_name"
ynh_app_setting_set "$app" psqlpwd "$db_pwd"
ynh_psql_test_if_first_run
ynh_psql_create_user "$app" "$db_pwd"
ynh_psql_execute_as_root \
"CREATE DATABASE $db_name ENCODING 'UTF8' LC_COLLATE='C' LC_CTYPE='C' template=template0 OWNER $app;"
ynh_psql_execute_as_root "\connect $db_name 
CREATE EXTENSION IF NOT EXISTS unaccent;CREATE EXTENSION IF NOT EXISTS pg_trgm;"

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_print_info "Setting up source files..."

# Download, check integrity, uncompress and patch the source from app.src
ynh_setup_source "$final_path"

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_print_info "Configuring nginx web server..."

# Create a dedicated nginx config
ynh_add_nginx_config

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_print_info "Configuring system user..."

# Create a system user
ynh_system_user_create "$app"

#=================================================
# SPECIFIC SETUP
#=================================================
# CREATE THE DATA DIRECTORY
#=================================================
ynh_print_info "Create the data directory..."

# Define app's data directory
datadir="/home/yunohost.app/${app}/storage"

# Create app folders
mkdir -p "$datadir"

# Give permission to the datadir
chown -R "$app":"$app" "$datadir"

#=================================================
# BUILD YARN DEPENDENCIES
#=================================================

cp ../conf/production.yaml "$final_path/config/production.yaml"
touch "$final_path/config/local-production.json"

(
	cd "$final_path"
	yarn install --production --pure-lockfile 
)

#=================================================
# MODIFY A CONFIG FILE
#=================================================

ynh_replace_string "__domain__"  "$domain"      "$final_path/config/production.yaml"
ynh_replace_string "__db_name__" "$app"         "$final_path/config/production.yaml"
ynh_replace_string "__app__"     "$app"         "$final_path/config/production.yaml"
ynh_replace_string "__db_pwd__"  "$db_pwd"      "$final_path/config/production.yaml"
ynh_replace_string "__email__"   "$admin_email" "$final_path/config/production.yaml"
ynh_replace_string "__PORT__"    "$port"        "$final_path/config/production.yaml"

#=================================================
# STORE THE CHECKSUM OF THE CONFIG FILE
#=================================================

# Calculate and store the config file checksum into the app settings
ynh_store_file_checksum "$final_path/config/production.yaml"

#=================================================
# SETUP SYSTEMD
#=================================================

ynh_replace_string "__ENV_PATH__" "$PATH" "../conf/systemd.service"
# Create a dedicated systemd config
ynh_add_systemd_config

#=================================================
# CHANGE PEERTUBE ADMIN PASSWORD AFTER INITIAL GEN
#=================================================

# we need to wait for the service to init peertube's database
(
	cd "$final_path"
	sleep 30
	echo $admin_pass | NODE_CONFIG_DIR="$final_path/config" NODE_ENV=production npm run reset-password -- -u root
)

#=================================================
# SEND A README FOR THE ADMIN
#=================================================

message=" $app was successfully installed :)

Please open your $app domain: https://$domain$path_url

The admin username is: root
The admin password is: $admin_pass

If you are facing any problem or want to improve this app, please open a new issue here: https://github.com/YunoHost-Apps/peertube_ynh"

ynh_send_readme_to_admin "$message"

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

### For security reason, any app should set the permissions to root: before anything else.
### Then, if write authorization is needed, any access should be given only to directories
### that really need such authorization.

# Set permissions to app files
chown -R "$app":"$app" $final_path


#=================================================
# SETUP LOGROTATE
#=================================================
ynh_print_info "Configuring log rotation..."

# Use logrotate to manage application logfile(s)
ynh_use_logrotate "/home/yunohost.app/${app}/storage/logs/peertube.log"

#=================================================
# SETUP SSOWAT
#=================================================
ynh_print_info "Configuring SSOwat..."

if [ "$is_public" -eq 0 ]
then	# Remove the public access
	ynh_app_setting_delete "$app" skipped_uris
fi
# Make app public if necessary
if [ "$is_public" -eq 1 ]
then
	# unprotected_uris allows SSO credentials to be passed anyway.
	ynh_app_setting_set "$app" unprotected_uris "/"
fi

#=================================================
# START SERVICE
#=================================================
ynh_print_info "Start service..."

systemctl enable "$app"
systemctl start "$app"

#=================================================
# RELOAD NGINX
#=================================================
ynh_print_info "Reloading nginx web server..."

systemctl reload nginx

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

ynh_print_info "Installation of $app completed"