#!/bin/sh

set -e

blist_ini() {
    if [ ! $# -eq 2 ]; then
        echo "You need to provide: INI_FILE, BLIST_FILE. Aborting..."
        exit 1
    fi
    INI_FILE=$1
    BLIST_FILE=$2
    while IFS=" " read -r SECTION PARAM; do
        if [ -n "$SECTION" ] && [ -n "$PARAM" ]; then
            awk -v sh_sect="${SECTION}" \
                -v sh_param="${PARAM}" \
                -i inplace \
                -F \
                ' *= *' '/^\[.*\]$/{ section = substr($0, 2, length - 2) } section == sh_sect && $1 == sh_param { next } {print}' \
                "$INI_FILE"
        elif [ -n "$SECTION" ]; then
            awk -v sh_sect="[${SECTION}]" \
                -i inplace \
                '/^\[.*\]$/{ f = 0 } $0 == sh_sect { f = 1 } !f' \
                "$INI_FILE"
        else
            echo "Empty line in '${BLIST_FILE}'."
        fi
    done < "$BLIST_FILE"
}

clean_nlines_ini() {
    if [ ! $# -eq 1 ]; then
        echo "You need to provide: INI_FILE. Aborting..."
        exit 1
    fi
    INI_FILE=$1
    # Replace extra newlines with only double (newlines between sections)
    #awk -i inplace 'BEGIN{RS="";ORS="\n\n"}1' "$INI_DFILE"

    # Trim the EOF in order to end it with exactly one newline
    awk -i inplace \
        '/^$/ {nlstack=nlstack "\n";next;} {printf "%s",nlstack; nlstack=""; print;}' \
        "$INI_FILE"
}