#!/bin/bash

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

source _common.sh
source ynh_detect_arch__2
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

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

domain=$YNH_APP_ARG_DOMAIN
path_url="/"
admin=$YNH_APP_ARG_ADMIN
is_public=$YNH_APP_ARG_IS_PUBLIC
password=$YNH_APP_ARG_PASSWORD
instance_name=$YNH_APP_ARG_NAME
registration=$YNH_APP_ARG_REGISTRATION
admin_email=$(ynh_user_get_info $admin 'mail')
secret_key=$(ynh_string_random 32 | base64)

app=$YNH_APP_INSTANCE_NAME

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

architecture=$(ynh_detect_arch)
# Check machine architecture (in particular, we don't support ARM and 32bit machines)
if [ $architecture == "arm" ]
then
    ynh_die --message="Sorry, but this app can only be installed on a 64 bits machine :("
fi

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

# Register (book) web path
ynh_webpath_register --app=$app --domain=$domain --path_url=$path_url

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

ynh_app_setting_set --app=$app --key=domain --value=$domain
ynh_app_setting_set --app=$app --key=path --value=$path_url
ynh_app_setting_set --app=$app --key=admin --value=$admin
ynh_app_setting_set --app=$app --key=is_public --value=$is_public

ynh_app_setting_set --app=$app --key=instance --value=$instance_name
ynh_app_setting_set --app=$app --key=registration --value=$registration
ynh_app_setting_set --app=$app --key=admin_email --value=$admin_email
ynh_app_setting_set --app=$app --key=secret_key --value=$secret_key

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

# Find a free port
port=$(ynh_find_port --port=8095)

ynh_app_setting_set --app=$app --key=port --value=$port

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

ynh_install_app_dependencies $pkg_dependencies

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

ynh_psql_test_if_first_run
db_name=$(ynh_sanitize_dbid $app)
db_user=$db_name
db_pwd=$(ynh_string_random 30)
ynh_app_setting_set --app=$app --key=db_name --value=$db_name
ynh_app_setting_set --app=$app --key=db_pwd --value=$db_pwd
ynh_psql_setup_db --db_user=$db_user --db_name=$db_name --db_pwd=$db_pwd

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

ynh_app_setting_set --app=$app --key=final_path --value=$final_path
# Download, check integrity, uncompress and patch the source from app.src
ynh_setup_source --dest_dir="$final_path/$app" --source_id=$architecture

# Create the media directory, where uploads will be stored
mkdir -p $final_path/media

# Create the cargo directory
mkdir -p $final_path/.cargo/bin

# Move binaries
mv $final_path/$app/bin/* $final_path/.cargo/bin/
chmod +x $final_path/.cargo/bin/*

# Remove empty bin directory
ynh_secure_remove --file="$final_path/$app/bin/"

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

# Create a dedicated nginx config
ynh_add_nginx_config

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

# Create a system user
ynh_system_user_create --username=$app --home_dir="$final_path"

#=================================================
# SPECIFIC SETUP
#=================================================
# CREATE LOG FOLDER
#=================================================

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

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

# setup application config
cp "../conf/.env" "$final_path/$app/.env"
ynh_replace_string --match_string="__DB_NAME__" --replace_string="$db_name" --target_file="$final_path/$app/.env"
ynh_replace_string --match_string="__DB_PWD__" --replace_string="$db_pwd" --target_file="$final_path/$app/.env"
ynh_replace_string --match_string="__DOMAIN__" --replace_string="$domain" --target_file="$final_path/$app/.env"
ynh_replace_string --match_string="__PORT__" --replace_string="$port" --target_file="$final_path/$app/.env"
ynh_replace_string --match_string="__SECRET_KEY__" --replace_string="$secret_key" --target_file="$final_path/$app/.env"

#=================================================
# MAKE SETUP
#=================================================

# Set right permissions 
chown -R "$app":"$app" $final_path

export PATH="$PATH:$final_path/.cargo/bin:$final_path/.local/bin:/usr/local/sbin" 

pushd $final_path/$app
    sudo -u "$app" env PATH=$PATH plm migration run

    # Add new instance
    if [ $registration -eq 1 ]
    then
         sudo -u "$app" env PATH=$PATH plm instance new  --domain "$domain" --name "$instance_name" -l 'CC-BY'
    else
         sudo -u "$app" env PATH=$PATH plm instance new --private --domain "$domain" --name "$instance_name" -l 'CC-BY'
    fi

    # Add admin user
    sudo -u "$app" env PATH=$PATH plm users new --admin -n "$admin" -N "$admin"  --email "$admin_email" --password "$password"

    # Initialise search index
    sudo -u "$app" env PATH=$PATH plm search init -p $final_path/$app
popd

#=================================================
# SETUP SYSTEMD
#=================================================
ynh_print_info --message="Configuring a systemd service..."

# Create a dedicated systemd config
ynh_add_systemd_config

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

# Calculate and store the config file checksum into the app settings
ynh_store_file_checksum --file="$final_path/$app/.env"

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

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

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

# Use logrotate to manage application logfile(s)
ynh_use_logrotate

#=================================================
# ADVERTISE SERVICE IN ADMIN PANEL
#=================================================

yunohost service add $app --description "$app daemon for XXX" --log "/var/log/$app/$app.log"

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

ynh_systemd_action --service_name=$app --action="start" --log_path="systemd" --line_match="Started plume"

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

# Make app public if necessary
if [ $is_public -eq 1 ]
then
	# unprotected_uris allows SSO credentials to be passed anyway.
	ynh_app_setting_set --app=$app --key=unprotected_uris --value="/"
fi

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

ynh_systemd_action --service_name=nginx --action=reload

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

ynh_print_info --message="Installation of $app completed"