#!/bin/bash

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

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

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

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

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

domain=$YNH_APP_ARG_DOMAIN
path_url=$YNH_APP_ARG_PATH
admin=$YNH_APP_ARG_ADMIN
is_public=$YNH_APP_ARG_IS_PUBLIC
email=$(ynh_user_get_info --username=$admin --key=mail)
password=$(ynh_string_random --length=30)

app=$YNH_APP_INSTANCE_NAME

#=================================================
# CHECK IF THE APP CAN BE INSTALLED WITH THESE ARGS
#=================================================
ynh_script_progression --message="Validating installation parameters..." --weight=1

final_path=/var/www/$app
test ! -e "$final_path" || ynh_die --message="This path already contains a folder"
data_path=/home/yunohost.app/$app
test ! -e "$data_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_script_progression --message="Storing installation settings..." --weight=1

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"

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# INSTALL DEPENDENCIES
#=================================================
ynh_script_progression --message="Installing dependencies..." --weight=1

ynh_install_app_dependencies "$pkg_dependencies"

#=================================================
# CREATE POSTGRESQL DATABASE
#=================================================
ynh_script_progression --message="Creating a PostgreSQL database..." --weight=4

ynh_psql_test_if_first_run

db_name=$(ynh_sanitize_dbid --db_name="$app")
db_user=$db_name
ynh_app_setting_set --app="$app" --key=db_name --value="$db_name"
ynh_psql_setup_db --db_user="$db_user" --db_name="$db_name"

db_pwd=$(ynh_app_setting_get "$app" psqlpwd)

#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Setting up source files..." --weight=6

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"

#=================================================
# NGINX CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring NGINX web server..." --weight=2

# Create a dedicated NGINX config
ynh_add_nginx_config

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Configuring system user..." --weight=2

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

#=================================================
# PHP-FPM CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring PHP-FPM..." --weight=1

# Create a dedicated php-fpm config
ynh_add_fpm_config --package="$extra_php_dependencies"
phpversion=$(ynh_app_setting_get --app="$app" --key=phpversion)

#=================================================
# SPECIFIC SETUP
#=================================================
# SECURE FILES AND DIRECTORIES
#=================================================

ynh_app_setting_set --app="$app" --key=data_path --value="$data_path"
mkdir -p "$data_path"
chown -R $app: "$data_path"
chown -R $app: "$final_path"

#=================================================
# SETUP APPLICATION
#=================================================
ynh_script_progression --message="Setting up the application..." --weight=190

exec_as $app php${phpversion} "$final_path/admin/cli/install.php" --wwwroot="https://$domain${path_url%/}" --dataroot="$data_path" --dbtype='pgsql' --dbname="$db_name" --dbuser="$db_name" --dbpass="$db_pwd" --adminuser="$admin" --adminpass="$password" --adminemail="$email" --fullname="YunoHost" --shortname="YNH" --non-interactive --agree-license

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

#=================================================
# ACTIVATE LDAP SUPPORT
#=================================================
ynh_script_progression --message="Activate LDAP support..." --weight=3

ynh_psql_execute_as_root --database="$db_name" --sql="UPDATE public.mdl_config SET value='ldap,email' WHERE name='auth';"
ynh_psql_execute_as_root --database="$db_name" --sql="UPDATE public.mdl_config_plugins SET value='ldap://127.0.0.1/' WHERE plugin='auth_ldap' AND name='host_url';"
ynh_psql_execute_as_root --database="$db_name" --sql="UPDATE public.mdl_config_plugins SET value='uid' WHERE plugin='auth_ldap' AND name='user_attribute';"
ynh_psql_execute_as_root --database="$db_name" --sql="UPDATE public.mdl_config_plugins SET value='ou=users,dc=yunohost,dc=org' WHERE plugin='auth_ldap' AND name='contexts';"
ynh_psql_execute_as_root --database="$db_name" --sql="UPDATE public.mdl_config_plugins SET value='givenName' WHERE plugin='auth_ldap' AND name='field_map_firstname';"
ynh_psql_execute_as_root --database="$db_name" --sql="UPDATE public.mdl_config_plugins SET value='sn' WHERE plugin='auth_ldap' AND name='field_map_lastname';"
ynh_psql_execute_as_root --database="$db_name" --sql="UPDATE public.mdl_config_plugins SET value='mail' WHERE plugin='auth_ldap' AND name='field_map_email';"
ynh_psql_execute_as_root --database="$db_name" --sql="UPDATE public.mdl_config_plugins SET value='onlogin' WHERE plugin='auth_ldap' AND (name='field_updatelocal_firstname' OR name='field_updatelocal_lastname' OR name='field_updatelocal_email');"
ynh_psql_execute_as_root --database="$db_name" --sql="UPDATE public.mdl_config_plugins SET value='locked' WHERE plugin='auth_ldap' AND (name='field_lock_firstname' OR name='field_lock_lastname' OR name='field_lock_email');"

# The admin is an ldap user
ynh_psql_execute_as_root --database="$db_name" --sql="UPDATE public.mdl_user SET auth='ldap' WHERE username='$admin';"

exec_as $app php${phpversion} "$final_path/admin/cli/purge_caches.php"

#=================================================
# ADD CRON JOB
#=================================================
ynh_script_progression --message="Adding cron job..." --weight=2

# Set up poller
cp "../conf/cron" "/etc/cron.d/$app"
ynh_replace_string --match_string="__APP__"        --replace_string="$app"        --target_file="/etc/cron.d/$app"
ynh_replace_string --match_string="__FINAL_PATH__" --replace_string="$final_path" --target_file="/etc/cron.d/$app"
ynh_replace_string --match_string="__PHPVERSION__" --replace_string="$phpversion" --target_file="/etc/cron.d/$app"

#=================================================
# GENERIC FINALIZATION
#=================================================
# SECURE FILES AND DIRECTORIES
#=================================================
ynh_script_progression --message="Securing files and directories..." --weight=1

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

#=================================================
# SETUP SSOWAT
#=================================================
ynh_script_progression --message="Configuring permissions..." --weight=1

# Make app public if necessary
if [ $is_public -eq 1 ]
then
	ynh_permission_update --permission="main" --add="visitors"
fi

#=================================================
# 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="Installation of Moodle completed" --last