#!/usr/bin/env bash
# shellcheck disable=SC2001
# install_keyboard_shortcut=<Control><Shift>U

# 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=""
    local temp_file=""

    # Execute initial checks.
    _check_dependencies "command=rdfind"
    _display_wait_box "2"
    input_files=$(_get_files "par_type=all; par_get_pwd=true")

    # Work on a temporary file.
    temp_file=$(_get_temp_file)

    # NOTE: The 'rdfind' does not support ' -- ' in the command line.

    # Run the main process.
    # shellcheck disable=SC2086
    rdfind -dryrun true -removeidentinode false -outputname "$temp_file" $input_files &>/dev/null
    std_output=$(grep "DUPTYPE" <"$temp_file")
    std_output=$(sed "s|DUPTYPE_FIRST_OCCURRENCE|\nDUPTYPE_FIRST_OCCURRENCE|" <<<"$std_output")
    std_output=$(cut -d ' ' -f 8- <<<"$std_output")
    std_output=$(grep -v "/\.git/" <<<"$std_output")
    std_output=$(sed -z "s|^\n*\([^\n]\)|\1|g; s|\n\{3,\}|\n\n|g" <<<"$std_output")
    std_output=$(_text_remove_pwd "$std_output")
    std_output=$(sed "s|//|/|" <<<"$std_output")
    std_output=$(sed "s|^\(..*\)$|'\1'|" <<<"$std_output")

    # Print a string in each group of duplicate files.
    if [[ -n "$std_output" ]]; then
        local msg_duplicate="Duplicate files:"
        std_output="$msg_duplicate"$'\n'"$std_output"
        std_output=$(sed -z "s|\n\n|\n\n$msg_duplicate\n|g" <<<"$std_output")
    fi

    rm -f -- "$temp_file"

    _display_text_box "$std_output"
}

_main "$@"