#!/bin/bash
set -euo pipefail


## INIT ##
# get script base directory
SCRIPT_PATH=$(readlink -f "${BASH_SOURCE[0]}")
SCRIPT_DIR=$(dirname -- "$SCRIPT_PATH")

# load ini library
source "${SCRIPT_DIR}/../ini.sh"

## PARSE INI CONFIG ##
# `my_conf` is the prefix you can use to refer to this config's values
# defaults to `ini`
ini_parse "${SCRIPT_DIR}/config.ini" my_conf

# if you want to load another config file, you can just use a different name!
ini_parse "${SCRIPT_DIR}/other-config.ini" my_other_conf



## LIST ALL VALUES ##
# `my_conf` is an array of section names
for s in ${my_conf[*]}; do
	echo "Section:: $s"
	
	# `my_conf__section_1__key_list` is an array of keys under the section "section_1"
	declare -n one_section_key_list="my_conf__${s}__key_list"
	
	# `my_conf__section_1` is an associative array mapping keys to their values for the section "section_1"
	declare -n one_section_map="my_conf__${s}"
	
	for k in ${one_section_key_list[*]}; do
		echo "	Key::   $k"
		echo "	Value:: ${one_section_map[$k]}"
		echo
	done
	echo
done


## READ CERTAIN VALUES ##
# get value of `first_value` under section `section_1`
echo "my_conf__section_1[first_value]::   ${my_conf__section_1[first_value]}"

# get value of `root_value` under root section (watch out for the triple underscore!)
echo "my_conf___root[root_value]::        ${my_conf___root[root_value]}"

# use bash parameter substitution for default values
echo "my_conf__section_1[third-value]::   ${my_conf__section_1[third-value]:-"<default value>"}"
echo "my_conf__section_1[fourth-value]::  ${my_conf__section_1[fourth-value]:-"<default value>"}"

# access values from other config file
echo "my_other_conf__sect[hihi]::         ${my_other_conf__sect[hihi]}"