#!/bin/bash

#=================================================
# GENERIC STARTING
#=================================================
# IMPORT GENERIC HELPERS
#=================================================

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

#=================================================
# RETRIEVE ARGUMENTS
#=================================================

app=${YNH_APP_INSTANCE_NAME:-$YNH_APP_ID}

#=================================================
# SPECIFIC CODE
#=================================================
# LOAD VALUES
#=================================================

# Load the real value from the app config or elsewhere.
# Then get the value from the form.
# If the form has a value for a variable, take the value from the form,
# Otherwise, keep the value from the app config.

# with_sftp
old_with_sftp="$(ynh_app_setting_get --app=$app --key=with_sftp)"
with_sftp="${YNH_CONFIG_MAIN_SFTP_SFTP:-$old_with_sftp}"

# sftp password
is_password_exist=0
password=$(ynh_app_setting_get --app=$app --key=password)
if [ -n "$password" ]
then
    ynh_print_warn --message="A password already exist, it will not be replaced."
    # If a password already exist, unset the variable password and to not change it.
    unset password
    is_password_exist=1
else
    # Otherwise, get the new password
    password="$YNH_CONFIG_MAIN_SFTP_PASSWORD"
fi


# Overwrite NGINX configuration
old_overwrite_nginx="$(ynh_app_setting_get --app=$app --key=overwrite_nginx)"
overwrite_nginx="${YNH_CONFIG_MAIN_OVERWRITE_FILES_OVERWRITE_NGINX:-$old_overwrite_nginx}"

# Overwrite PHP-FPM configuration
old_overwrite_phpfpm="$(ynh_app_setting_get --app=$app --key=overwrite_phpfpm)"
overwrite_phpfpm="${YNH_CONFIG_MAIN_OVERWRITE_FILES_OVERWRITE_PHPFPM:-$old_overwrite_phpfpm}"


# Footprint for PHP-FPM
old_fpm_footprint="$(ynh_app_setting_get --app=$app --key=fpm_footprint)"
fpm_footprint="${YNH_CONFIG_MAIN_PHP_FPM_CONFIG_FOOTPRINT:-$old_fpm_footprint}"

# Free footprint value for PHP-FPM
# Check if fpm_footprint is an integer
if [ "$fpm_footprint" -eq "$fpm_footprint" ] 2> /dev/null
then
    # If fpm_footprint is an integer, that's a numeric value for the footprint
    old_free_footprint=$fpm_footprint
else
    old_free_footprint=0
fi
free_footprint="${YNH_CONFIG_MAIN_PHP_FPM_CONFIG_FREE_FOOTPRINT:-$old_free_footprint}"

# Usage for PHP-FPM
old_fpm_usage="$(ynh_app_setting_get --app=$app --key=fpm_usage)"
fpm_usage="${YNH_CONFIG_MAIN_PHP_FPM_CONFIG_USAGE:-$old_fpm_usage}"

#=================================================
# SHOW_CONFIG FUNCTION FOR 'SHOW' COMMAND
#=================================================

show_config() {
	# here you are supposed to read some config file/database/other then print the values
	# ynh_return "YNH_CONFIG_${PANEL_ID}_${SECTION_ID}_${OPTION_ID}=value"
	ynh_return "YNH_CONFIG_MAIN_SFTP_SFTP=$with_sftp"
# 	ynh_return "YNH_CONFIG_MAIN_SFTP_PASSWORD=$password"

	ynh_return "YNH_CONFIG_MAIN_PHP_FPM_CONFIG_FOOTPRINT=$fpm_footprint"
	ynh_return "YNH_CONFIG_MAIN_PHP_FPM_CONFIG_FREE_FOOTPRINT=$free_footprint"
	ynh_return "YNH_CONFIG_MAIN_PHP_FPM_CONFIG_USAGE=$fpm_usage"
}

#=================================================
# MODIFY THE CONFIGURATION
#=================================================

apply_config() {
    #=================================================
    # REMOVE OR ADD SFTP ACCESS
    #=================================================

    if [ "$with_sftp" != "$old_with_sftp" ]
    then
        yunohost app action run $app sftp --args with_sftp=$with_sftp

        # Change the password only if none was already set for the user
        if [ $is_password_exist -eq 0 ] && [ $with_sftp -eq 1 ]
        then
            # Add the password to the user
            chpasswd <<< "${app}:${password}"
            ynh_app_setting_set --app=$app --key=password --value="$password"
        fi
    fi

    #=================================================
    # RECONFIGURE PHP-FPM
    #=================================================

    if [ "$fpm_usage" != "$old_fpm_usage" ] || [ "$fpm_footprint" != "$old_fpm_footprint" ]
    then
        ynh_add_fpm_config --usage=$fpm_usage --footprint=$fpm_footprint
    fi
}

#=================================================
# GENERIC FINALIZATION
#=================================================
# SELECT THE ACTION FOLLOWING THE GIVEN ARGUMENT
#=================================================

case $1 in
  show) show_config;;
  apply) apply_config;;
esac