#!/bin/bash

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

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

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

ynh_clean_setup () {
	### Remove this function if there's nothing to clean before calling the remove script.
	true
}
# 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
etherpad_instance=$YNH_APP_ARG_ETHERPAD_INSTANCE
is_public=$YNH_APP_ARG_IS_PUBLIC
creation_open=$YNH_APP_ARG_CREATION_OPEN

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 "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_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=$app --key=etherpad_instance --value=$etherpad_instance
ynh_app_setting_set --app=$app --key=creation_open --value=$creation_open

#=================================================
# CREATE DEDICATED USER
#=================================================
ynh_script_progression --message="Configuring system user..." --weight=1

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

#=================================================
# STANDARD MODIFICATIONS
#=================================================
# DOWNLOAD, CHECK AND UNPACK SOURCE
#=================================================
ynh_script_progression --message="Setting up source files..." --weight=4

ynh_app_setting_set --app=$app --key=final_path --value=$final_path
# Note: We use git instead of ynh_setup_source, cause this repo use submodules
git clone https://github.com/zamentur/libreto.git "$final_path" --quiet

pushd "$final_path"
    git checkout $COMMIT --quiet
    git submodule update --init --recursive --quiet
popd

chmod 750 "$final_path"
chmod -R o-rwx "$final_path"
chown -R $app:www-data "$final_path"

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

# Create a dedicated nginx config
ynh_add_nginx_config

#=================================================
# PHP-FPM CONFIGURATION
#=================================================
ynh_script_progression --message="Configuring PHP-FPM..." --weight=2

# Create a dedicated PHP-FPM config
ynh_add_fpm_config
phpversion=$(ynh_app_setting_get --app=$app --key=phpversion)

ynh_replace_string --match_string="__INSTANCE__" --replace_string="$etherpad_instance" --target_file="/etc/nginx/conf.d/$domain.d/$app.conf"

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

cp "../conf/config.dist.php" "$final_path/config.php"

provider="${domain%%.*}"
if [ "$etherpad_instance" != "https://annuel2.framapad.org" ]; then
    ynh_replace_string --match_string="// CUSTOM_PROVIDER" --replace_string="" --target_file="$final_path/config.php"
    ynh_replace_string --match_string="__PROVIDER__" --replace_string="$provider" --target_file="$final_path/config.php"
    ynh_replace_string --match_string="__INSTANCE__" --replace_string="$etherpad_instance" --target_file="$final_path/config.php"
else
    ynh_replace_string --match_string="__PROVIDER__" --replace_string="framapad" --target_file="$final_path/config.php"
fi

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

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

#=================================================
# 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 $app completed" --last