#!/usr/bin/env bash

# Source the script 'common-functions.sh'.
SCRIPT_DIR=$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" &>/dev/null && pwd)
ROOT_DIR=$(grep --only-matching "^.*scripts[^/]*" <<<"$SCRIPT_DIR")
source "$ROOT_DIR/common-functions.sh"

_main() {
    local input_files=""
    local std_output=""

    # Execute initial checks.
    _check_dependencies ""
    _display_wait_box "2"
    input_files=$(_get_files "par_type=all; par_min_items=2; par_max_items=2; par_sort_list=true")

    # Run the main process.
    local file_1=""
    local file_2=""

    file_1=$(cut -d "$FIELD_SEPARATOR" -f 1 <<<"$input_files")
    file_2=$(cut -d "$FIELD_SEPARATOR" -f 2 <<<"$input_files")

    [[ -d "$file_1" ]] && file_1+="/"
    [[ -d "$file_2" ]] && file_2+="/"

    std_output=$(diff --no-dereference --brief --recursive -- "$file_1" "$file_2" 2>&1)
    std_output=$(_text_remove_pwd "$std_output")
    std_output=$(_text_sort "$std_output")

    if [[ -z "$std_output" ]]; then
        std_output="(No differences)"
    fi

    _display_text_box "$std_output"
}

_main "$@"