#!/bin/bash

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

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

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

app=${YNH_APP_INSTANCE_NAME:-$YNH_APP_ID}

#=================================================
# 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.

# 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=$fpm_footprint
    fpm_footprint=specific
else
    old_free_footprint=0
fi
free_footprint="${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_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() {

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

    if [ "$fpm_usage" != "$old_fpm_usage" ] || [ "$fpm_footprint" != "$old_fpm_footprint" ] || [ "$free_footprint" != "$old_free_footprint" ]
    then
        # If fpm_footprint is set to 'specific', use $free_footprint value.
        if [ "$fpm_footprint" = "specific" ]
        then
            fpm_footprint=$free_footprint
        fi

        if [ "$fpm_footprint" != "0" ]
        then
            ynh_add_fpm_config --usage=$fpm_usage --footprint=$fpm_footprint
        else
            ynh_print_err --message="When selecting 'specific', you have to set a footprint value into the field below."
        fi
    fi
}

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

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