#!/usr/bin/env bash
# spmenu_path
# This script provides functions for reading $PATH
#
# See LICENSE file for copyright and license details.

path() {
    [ "$SORT_BY_NUMBER" != "false" ] && NUMBERSORTARG="-n"
    [ "$SORT_IN_REVERSE" != "false" ] && REVERSESORTARG="-r"
    SORT_ARGS="$NUMBERSORTARG $REVERSESORTARG $SORT_ARGS"

    read -ra uniq_args <<< "${UNIQ_ARGS}"
    read -ra sort_args <<< "${SORT_ARGS}"

    HIDDEN_KEYWORDS="${HIDDEN_KEYWORDS:-NULL_ENTRY}"

    print_menu() {
        print() {
                compgen -c | \
                grep -vE "$HIDDEN_KEYWORDS" | \
                grep -E "$KEYWORDS"
            }

            if [ "$SORT_BY_RECENT" != "false" ]; then
                print | sort "${sort_args[@]}" | cut -d' ' -f 2 2>&1
            else
                print | sort "${sort_args[@]}" | cut -d' ' -f 2 2>&1
            fi
        }

    # uniq
    if [ "$DISPLAY_DUPLICATES" != "false" ]; then
        print_menu
    else
        print_menu | uniq "${uniq_args[@]}"
    fi

    command -v run_pre_func && run_pre_func
}

print_help() {
    if [ "$DMENU_COMPAT" != "true" ]; then
        COL='\033[0;31m'
        RUNLAUNCHER_EX_ARGS="--lines 30 --columns 1 --normal --sgr1 $HELP_COLOR --hide-cursor --no-allow-typing --no-color-items --hide-prompt --hide-powerline --hide-input --hide-right-arrow --hide-left-arrow --hide-mode --hide-match-count --hide-caps"
        read -ra rl_ex <<< "$RUNLAUNCHER_EX_ARGS"
    fi
    cat << EOF | $RUNLAUNCHER "${rl_help[@]}" "${rl_ex[@]}" > /dev/null
Start typing in keywords to list out entries. Press Enter to select an entry. The selected entry will be run through a shell.
To set spmenu options, you pass arguments to 'spmenu_run' directly. See 'spmenu --help' for a list of valid arguments.
To configure spmenu, you may also copy ${DESTDIR}${PREFIX}/share/spmenu/spmenu.conf to $CONFDIR/spmenu/spmenu.conf and edit that.

- Type in '?' to show this help screen at any time.
- If the entry selected starts with 'www', it will instead be treated as a link and spawned in a web browser (\$BROWSER)
- If the entry selected starts with 'magnet', it will instead be treated as a magnet link and spawned in a torrent client (\$TORRENT)
- If the entry selected starts with '?' followed by a valid command, it will be opened as a man page in spmenu.
- If the entry starts with '#' followed by a valid command, it will be opened in the defined terminal emulator.

Enter '@' to show the bookmark list. Enter '@<text>:<command>' to add a bookmark. If the bookmark is selected, the
<command> will be executed. Enter @c to clear the bookmark list. '@<text>' is also valid, and then <text> will be
executed instead.

$(printf "%b" "${COL}")Note: This may also be displayed if you deleted your spmenu configuration directory.
EOF
}

parse() {
    [ ! -f "$BOOKMARK_FILE" ] && mkdir -p "$(dirname "$BOOKMARK_FILE")" && touch "$BOOKMARK_FILE"

    if [ "$SHOW_BM" != "true" ]; then
        path | $RUNLAUNCHER "${rl_run[@]}" > /tmp/spmenu_out
    else
        echo > /tmp/spmenu_out
    fi

    # remove "@" entries
    [ -f "$HISTORY" ] && grep -v "^@" "$HISTORY" > /tmp/f && mv /tmp/f "$HISTORY"

    while read -r sout; do
        command -v run_single_char_func > /dev/null && run_single_char_func "${sout:0:1}"
        command -v run_output_func > /dev/null && run_output_func "${sout}"

        printf "Run launcher output: '%s'\n" "$sout" >> "$LOGFILE"

        # check for keywords
        printf "%s" "$sout" | grep -qE "$WEB_GREP" && EXEC=web
        printf "%s" "$sout" | grep -qE "$MAGNET_GREP" && EXEC=torrent

        case "$(printf "%s" "$sout" | awk '{ print $1 }')" in
            "magnet") EXEC=torrent ;;
            "www") EXEC=web ;;
            "?") ;;
        esac

        # parse
        case "${sout:0:1}" in
            "#") EXEC="term" ;;
            "?") EXEC="man" ;;
            "@") EXEC="mark" ;;
        esac

        [ "$SHOW_BM" = "true" ] && sout="@"

        case "$sout" in
            "?")
                print_help "$@"
                parse "$@"
                exec_cmd
                ;;
            "@")
                print_bookmarks "$@"
                ;;
            "@c")
                rm -f "$BOOKMARK_FILE" && touch "$BOOKMARK_FILE"
                parse
                exec_cmd
                ;;
        esac

        printf "Type: '%s'\n" "$EXEC" >> "$LOGFILE"

        bookmark_spmenu
        exec_cmd "$args"
        [ "$MULTISELECT" != "true" ] && break
    done < /tmp/spmenu_out
}

bookmark_path() {
    while read -r file; do
        command -v run_file_bookmark_list_func > /dev/null && \
            run_file_bookmark_list_func "$file"

        printf "%s\n" "${file%%:*}"
    done < "$BOOKMARK_FILE"
}

bookmark_spmenu() {
    while read -r sout; do
        command -v run_pre_bookmark_list_func > /dev/null && run_pre_bookmark_list_func "$sout"
        command -v run_single_char_pre_bookmark_list_func > /dev/null && run_single_char_pre_bookmark_list_func "${sout:0:1}"

        printf "Run launcher output: '%s'\n" "$sout" >> "$LOGFILE"

        sout_e="$(grep -- "$sout" "$BOOKMARK_FILE" | tail -n 1)"
        [ -n "${sout_e#*:}" ] && {
            printf "%s\n" "${sout_e#*:}" | ${SHELL:-"/bin/sh"} &
        } || return
        [ "$MULTISELECT" != "true" ] && break
    done < /tmp/spmenu_out

    command -v run_post_bookmark_list_func > /dev/null && run_post_bookmark_list_func

    exit 0
}

print_bookmarks() {
    bookmark_path | sort "${sort_args[@]}" | $RUNLAUNCHER "${rl_bm[@]}" > /tmp/spmenu_out

    bookmark_spmenu
}

exec_cmd() {
    [ -z "$EXEC" ] && EXEC=shell
    [ "$STDOUT" != "false" ] && printf "%s\n" "$sout" && exit 1

    if [ -d "$sout" ]; then
        load_x "spmenu_fm"
        dir="$sout"
        prepare_dirnav
        return
    fi

    command -v run_post_func > /dev/null && run_post_func "$sout"

    # when there's no read_man func because the user is retarded and removed it, this basic function will be called instead
    read_woman() {
        $TERMINAL -e man "$1"
    }

    # execute it
    case "$EXEC" in
        "mark") printf "%s\n" "$sout" | sed -- "s/@//g" >> "$BOOKMARK_FILE"; parse; exit 0 ;;
        "shell") printf "%s" "$sout" | ${SHELL:-"/bin/sh"} & ;;
        "term") $TERMINAL -e "$(printf "%s" "$sout" | sed "s/#//g")" & ;;
        "web") $BROWSER "$(printf "%s" "$sout" | sed "s/www //g")" & ;;
        "torrent") $TORRENT "$(printf "%s" "$sout" | sed "s/magnet //g")" & ;;
        "man") exec="$(printf "%s" "$sout" | sed "s/?//g")"
            [ -x "$(command -v "$exec")" ] || return
            if [ "$(command -v read_man)" ]; then
                read_man "$exec"
                return
            else
                read_woman "$exec"
                return
            fi
            ;;
    esac
}