#!/usr/bin/env bash
# spmenu_run
# Feature rich run launcher, file lister and .desktop launcher for spmenu
#
# See LICENSE file for copyright and license details.

# Set basic variables, in case the config isn't valid, env variables and config file can override these
CONFDIR="${CONFDIR:-${XDG_CONFIG_HOME:-$HOME/.config}}"
TERMINAL="${TERMINAL:-st -e}"
BROWSER="${BROWSER:-xdg-open}"
TORRENT="${TORRENT:-qbittorrent}"
PDF_READER="${PDF_READER:-zathura}"
EDITOR="${EDITOR:-nvim}"
PLAYER="${PLAYER:-mpv}"
GENERIC="${GENERIC:-$TERMINAL -e $EDITOR}"
WEB_GREP="${WEB_GREP:-http:|https:|www[.]}"
MAGNET_GREP="${MAGNET_GREP:-magnet:?}"
HISTORY="${HISTORY:-${XDG_CACHE_HOME:-$HOME/.cache/}/spmenu/spmenu_run.hist}"
RUNLAUNCHER="${RUNLAUNCHER:-spmenu}"
PREFIX="${PREFIX:-/usr}"
DESTDIR="${DESTDIR:-}"
STDOUT="${STDOUT:-false}"
SORT_BY_NUMBER="${SORT_BY_NUMBER:-true}"
SORT_IN_REVERSE="${SORT_IN_REVERSE:-true}"
SORT_BY_RECENT="${SORT_BY_RECENT:-false}"
SORT_ARGS="${SORT_ARGS:-}"
UNIQ_ARGS="${UNIQ_ARGS:-}"
HIDDEN_KEYWORDS="${HIDDEN_KEYWORDS:-spmenu}"
KEYWORDS="${KEYWORDS:-}"
DISPLAY_DUPLICATES="${DISPLAY_DUPLICATES:-false}"
DISPLAY_DESCRIPTION="${DISPLAY_DESCRIPTION:-false}"
DISPLAY_COMMENT="${DISPLAY_COMMENT:-true}"
LS_ARGS="${LS_ARGS:- --color=always}"
USE_FULL_PATH="${USE_FULL_PATH:-false}"
HELP_COLOR="${HELP_COLOR:-#FFFF00}"
DESCRIPTION_COLOR="${DESCRIPTION_COLOR:-#999888}"
DESCRIPTION_SEPARATOR="${DESCRIPTION_SEPARATOR:- - }"
COMMENT_COLOR="${COMMENT_COLOR:-#999888}"
COMMENT_SEPARATOR="${COMMENT_SEPARATOR:- - }"
DMENU_COMPAT="${DMENU_COMPAT:-false}"
AUTOREFRESH="${AUTOREFRESH:-true}"
MULTISELECT="${MULTISELECT:-true}"
BOOKMARK_FILE="${BOOKMARK_FILE:-${XDG_CACHE_HOME:-$HOME/.cache/}/spmenu/spmenu_run.bookmarks}"
BOOKMARK_PROMPT="${BOOKMARK_PROMPT:-Bookmarks}"
PRINT_LOGS_STDERR="${PRINT_LOGS_STDERR:-true}"
RESPECT_NODISPLAY="${RESPECT_NODISPLAY:-true}"
RESPECT_ONLYSHOWIN="${RESPECT_ONLYSHOWIN:-true}"
PREFERRED_LANGUAGE="${PREFERRED_LANGUAGE:-generic}"

RUNLAUNCHER_RUN_ARGS=""
RUNLAUNCHER_BM_ARGS=""
RUNLAUNCHER_DESKTOP_ARGS=""
RUNLAUNCHER_FM_ARGS="--lines 40 --columns 2"
RUNLAUNCHER_HELP_ARGS=""

DESKTOP_DIR="${DESKTOP_DIR:-${DESTDIR}${PREFIX}/share/applications ${HOME}/.local/share/applications}"
ICON_DIR="${ICON_DIR:-${DESTDIR}${PREFIX}/share/icons/hicolor ${HOME}/.local/share/icons/hicolor ${DESTDIR}${PREFIX}/share/pixmaps}"
IMAGE="${IMAGE:-true}"
LOGFILE="${LOGFILE:-/tmp/spmenu_run.log}"

TITLEFILE="${TITLEFILE:-${XDG_CACHE_HOME:-$HOME/.cache}/spmenu/.desktop_title}"
EXECFILE="${EXECFILE:-${XDG_CACHE_HOME:-$HOME/.cache}/spmenu/.desktop_exec}"
ICONFILE="${ICONFILE:-${XDG_CACHE_HOME:-$HOME/.cache}/spmenu/.desktop_icon}"
DESCFILE="${DESCFILE:-${XDG_CACHE_HOME:-$HOME/.cache}/spmenu/.desktop_desc}"
FILEFILE="${FILEFILE:-${XDG_CACHE_HOME:-$HOME/.cache}/spmenu/.desktop_file}"
TERMFILE="${TERMFILE:-${XDG_CACHE_HOME:-$HOME/.cache}/spmenu/.desktop_term}"
ONLYFILE="${DISPLAYFILE:-${XDG_CACHE_HOME:-$HOME/.cache}/spmenu/.desktop_only}"
DISPLAYFILE="${DISPLAYFILE:-${XDG_CACHE_HOME:-$HOME/.cache}/spmenu/.desktop_display}"
COMMENTFILE="${COMMENTFILE:-${XDG_CACHE_HOME:-$HOME/.cache}/spmenu/.desktop_comment}"

# arrays containing entries
declare -a it_title
declare -a it_icon
declare -a it_exec
declare -a it_file
declare -a it_desc
declare -a it_comment
declare -a it_term

# arrays containing arguments
declare -a rl_fm
declare -a rl_bm
declare -a rl_run
declare -a rl_desktop
declare -a rl_help
declare -a rl_ex
declare -a ls_args
declare -a sort_args
declare -a uniq_args

# directories
declare -a desktopdir
declare -a icondir

prepare_dirs() {
    mkdir -p \
        "$(dirname "$TITLEFILE")" \
        "$(dirname "$EXECFILE")" \
        "$(dirname "$ICONFILE")" \
        "$(dirname "$DESCFILE")" \
        "$(dirname "$FILEFILE")" \
        "$(dirname "$TERMFILE")" \
        "$(dirname "$DISPLAYFILE")" \
        "$(dirname "$COMMENTFILE")" \
        "$(dirname "$LOGFILE")" \
        "$(dirname "$HISTORY")" \
        "$(dirname "$BOOKMARK_FILE")"
}

check() {
    prepare_dirs
    [ ! -d "$CONFDIR/spmenu/run" ] && mkdir -p "$CONFDIR/spmenu/run"
    if [ ! -f "$CONFDIR/spmenu/run/.first_run" ]; then
        print_help
        touch "$CONFDIR/spmenu/run/.first_run"
    fi
}

check_desktop() {
    [ ! -d "$CONFDIR/spmenu/run" ] && mkdir -p "$CONFDIR/spmenu/run"
    if [ ! -f "$CONFDIR/spmenu/run/.first_run" ]; then
        print_desktop_help
        touch "$CONFDIR/spmenu/run/.first_run"
    fi
}

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
}

print_cli_help() {
    cat << EOF
spmenu_run - Run launcher for spmenu

spmenu_run -x,   --run               List entries in \$PATH.
spmenu_run -fm,  --fm <dir>          List files and directories in <dir>
spmenu_run -d,   --desktop           List .desktop entries.
spmenu_run -p,   --full-path         Print the full path to the file selected (-fm)
spmenu_run -np,  --no-full-path      Don't print the full path to the file selected (-fm)
spmenu_run -cc,  --clear-cache       Clear cache, useful if you just installed/uninstalled a program (-d)
spmenu_run -sb,  --show-bookmarks    Show bookmarks immediately
spmenu_run -nsb, --no-show-bookmarks Don't show bookmarks immediately
spmenu_run -dm,  --dmenu             Run spmenu_run using dmenu instead of spmenu
spmenu_run -ndm, --no-dmenu          Run spmenu_run using spmenu instead of dmenu
spmenu_run -h,   --help              Print this help
spmenu_run -o,   --stdout            Print to standard input and do not execute the selected item
spmenu_run -no,  --no-stdout         Don't print to standard input, execute the selected item
spmenu_run -a,   --args <args>       Pass <args> to spmenu

See spmenu(1) and spmenu_run(1) for more information.
EOF
}

print_config() {
    [ -f "$CONFDIR/spmenu/run/config" ] && . "$CONFDIR/spmenu/run/config" && return
    mkdir -p "$CONFDIR/spmenu/run"
    cat << EOF > "$CONFDIR/spmenu/run/config"
# spmenu_run default configuration file
#
# This is the configuration file for the run launcher spmenu comes with.
# It is not the configuration file for spmenu, see ~/.config/spmenu/spmenu.conf for that.
#
# spmenu_run also runs these functions if found in the config file:
#
# 'run_pre_func' before spawning spmenu.
# 'run_post_func' after spawning spmenu, selected item passed as an argument.
# 'run_pre_bookmark_list_func' while listing selected/marked items. The selected item is passed as an argument.
# 'run_post_bookmark_list_func' while listing selected/marked items. The selected item is passed as an argument.
# 'run_file_bookmark_list_func' while reading entries from the bookmark file. The current bookmark is passed as an argument.
# 'run_single_char_pre_bookmark_list_func' while listing selected/marked items. The first character of the spmenu output is passed as an argument.
# 'run_single_char_func' while checking the value of a single character. The first character of the spmenu output is passed as an argument.
# 'run_output_func' while checking the value of the spmenu output. spmenu output is passed as an argument.
# 'desktop_pre_func' before spawning spmenu.
# 'desktop_post_func' after spawning spmenu, selected item passed as an argument.
# 'desktop_pre_caching_func' before caching entries.
# 'desktop_post_caching_func' after caching entries.
# 'desktop_file_caching_func' while caching entries. The current file that is being parsed is passed as an argument.
# 'fm_pre_func' before spawning spmenu.
# 'fm_post_func' after spawning spmenu, selected item passed as an argument.
# 'fm_pre_list_func' right before listing out files.
# 'fm_post_list_func' right after listing out files.
# 'fm_dir_func' before changing directory to the selected directory.
# 'fm_line_func' for each line in ls output, the line is passed as an argument, including SGR colors.
# 'read_man' when reading a man page, selected item passed as an argument.
# 'print_array' when printing out .desktop entries
#
# You may create those functions below.
#
# For example, to implement a basic history file:
#
# run_post_func() {
#   rm -f /tmp/spmenu_entryhist; printf "\$1\n" >> /tmp/spmenu_entryhist
# }
#
# You can use anything POSIX compliant shells and Bash support, as well as programs available on the system.


# Miscellanious software options
TERMINAL="\${TERMINAL:-st -e}" # Terminal commands are spawned in
BROWSER="\${BROWSER:-xdg-open}" # Web browser, for URLs
TORRENT="\${TORRENT:-qbittorrent}" # Torrent client, for magnet links
PDF_READER="\${PDF_READER:-zathura}" # PDF reader, for file management
EDITOR="\${EDITOR:-nvim}" # Editor, used to open documents
PLAYER="\${PLAYER:-mpv}" # Player, used to play audio/video
GENERIC="\${GENERIC:-\$TERMINAL -e \$EDITOR}" # Generic, used to open unknown files
WEB_GREP="$WEB_GREP" # Needs to be in grep -E syntax
MAGNET_GREP="$MAGNET_GREP" # Needs to be in grep -E syntax
HISTORY="\${XDG_CACHE_HOME:-\$HOME/.cache/}/spmenu/spmenu_run.hist" # History file, spmenu (meaning your user) must have permission to read and write to it.
BOOKMARK_FILE="\${BOOKMARK_FILE:-\${XDG_CACHE_HOME:-\$HOME/.cache/}/spmenu/spmenu_run.bookmarks}" # Bookmark file, spmenu_run must have permission to read and write to it.
BOOKMARK_PROMPT="$BOOKMARK_PROMPT" # Bookmark prompt (-p)

# Run launcher argument options
RUNLAUNCHER="\${RUNLAUNCHER:-spmenu}" # Run launcher to use
RUNLAUNCHER_RUN_ARGS="$RUNLAUNCHER_RUN_ARGS" # Extra arguments passed to \$RUNLAUNCHER when using the run launcher
RUNLAUNCHER_BM_ARGS="$RUNLAUNCHER_BM_ARGS" # Extra arguments passed to \$RUNLAUNCHER when using the bookmark menu
RUNLAUNCHER_DESKTOP_ARGS="$RUNLAUNCHER_DESKTOP_ARGS" # Extra rguments passed to \$RUNLAUNCHER when using the .desktop launcher
RUNLAUNCHER_FM_ARGS="${RUNLAUCNHER_FM_ARGS}" # Extra arguments passed to \$RUNLAUNCHER when using the file manager
RUNLAUNCHER_HELP_ARGS="${RUNLAUNCHER_HELP_ARGS}" # Extra arguments passed to \$RUNLAUNCHER when using the help
DMENU_COMPAT="$DMENU_COMPAT" # Enable dmenu compatibility (true/false)

# Sorting
SORT_BY_NUMBER="$SORT_BY_NUMBER" # Sort by numbers
SORT_IN_REVERSE="$SORT_IN_REVERSE" # Sort in reverse
SORT_BY_RECENT="$SORT_BY_RECENT" # Sort by recent
SORT_ARGS="$SORT_ARGS" # Extra arguments passed to the sort command.

# Keywords
HIDDEN_KEYWORDS="$HIDDEN_KEYWORDS" # Keywords that will be ignored, needs to be in grep -vE syntax.
KEYWORDS="$KEYWORDS" # Keywords that will be matched, needs to be in grep -E syntax.

# Miscellanious
STDOUT="$STDOUT" # Print to stdout and exit (true/false)
DISPLAY_DUPLICATES="$DISPLAY_DUPLICATES" # Display duplicates or not
DEFAULT_FEATURE="$DEFAULT_FEATURE" # spmenu_run default feature (run/fm/desktop/help)
HELP_COLOR="$HELP_COLOR"

# .desktop entry options
DESKTOP_DIR="$DESKTOP_DIR" # Directories for .desktop entries
ICON_DIR="$ICON_DIR" # Directories for icons defined in the entries
HIDDEN_ENTRY_KEYWORDS="\$HIDDEN_KEYWORDS" # Keywords that will be ignored, needs to be in grep -vE syntax.
ENTRY_KEYWORDS="\$KEYWORDS" # Keywords that will be matched, needs to be in grep -E syntax.
AUTOREFRESH="$AUTOREFRESH" # Refresh (clear) cache if there are more entries available than cached. May cause cache to be cleared every time in some cases. (true/false)
MULTISELECT="$MULTISELECT" # Allow handling multiple items, if set to false only the first line/selected item will be used.
IMAGE="$IMAGE" # Display images (true/false)
DISPLAY_COMMENT="$DISPLAY_COMMENT" # Display comment (true/false)
DISPLAY_DESCRIPTION="$DISPLAY_DESCRIPTION" # Display description (true/false)"
DESCRIPTION_COLOR="$DESCRIPTION_COLOR" # Description text color
DESCRIPTION_SEPARATOR="$DESCRIPTION_SEPARATOR" # Separator between title and description
COMMENT_COLOR="$COMMENT_COLOR" # Comment text color
COMMENT_SEPARATOR="$COMMENT_SEPARATOR" # Separator between title and comment
RESPECT_NODISPLAY="$RESPECT_NODISPLAY" # Respect NoDisplay in .desktop entries. If set to true, entries with 'NoDisplay=true' will not be displayed (true/false)
RESPECT_ONLYSHOWIN="$RESPECT_ONLYSHOWIN" # Respect OnlyShowIn in .desktop entries. If set to true, entries wth 'OnlyShowIn' assigned will not be displayed (true/false)
PREFERRED_LANGUAGE="$PREFERRED_LANGUAGE" # Preferred language for the title and description. "generic" means the default for that .desktop entry (true/false)
LOGFILE="$LOGFILE" # Log file
PRINT_LOGS_STDERR="$PRINT_LOGS_STDERR" # Print information (such as logs) to stderr (true/false)
TITLEFILE="\${XDG_CACHE_HOME:-\$HOME/.cache}/spmenu/.desktop_title" # File containing the different titles to display.
DESCFILE="\${XDG_CACHE_HOME:-\$HOME/.cache}/spmenu/.desktop_desc" # File containing the description to display
EXECFILE="\${XDG_CACHE_HOME:-\$HOME/.cache}/spmenu/.desktop_exec" # File containing the different executables to run.
ICONFILE="\${XDG_CACHE_HOME:-\$HOME/.cache}/spmenu/.desktop_icon" # File containing the paths to the icons to display.
FILEFILE="\${XDG_CACHE_HOME:-\$HOME/.cache}/spmenu/.desktop_file" # File containing the path to the .desktop entries.
TERMFILE="\${XDG_CACHE_HOME:-\$HOME/.cache}/spmenu/.desktop_term" # File containing the path to the terminal data
ONLYFILE="\${XDG_CACHE_HOME:-\$HOME/.cache}/spmenu/.desktop_only" # File containing the path to the OnlyShowIn data
DISPLAYFILE="\${XDG_CACHE_HOME:-\$HOME/.cache}/spmenu/.desktop_display" # File containing the path to the NoDisplay data
COMMENTFILE="\${XDG_CACHE_HOME:-\$HOME/.cache}/spmenu/.desktop_comment" # File containing the comment to display

# File management
DEFAULT_DIRECTORY="\$(pwd)" # Directory to start -fm if none is specified.
LS_ARGS="\${LS_ARGS:- --color=always}" # Arguments passed to /bin/ls
USE_FULL_PATH="true" # Return full path (true/false)

# Function to read the man page in spmenu
read_man() {
    man "\$1" | \\
    col -b | \\
    \${RUNLAUNCHER:-spmenu} --lines 40 --columns 1 -p "man \$1"
}

# Function used to print out the .desktop entries
print_array() {
    for i in "\${!it_title[@]}"; do
        [ "\$RESPECT_ONLYSHOWIN" != "false" ] && [ "\${it_only[i]}" != "false" ] && continue
        [ "\$RESPECT_NODISPLAY" != "false" ] && [ "\${it_display[i]}" != "true" ] && continue

        if [ -f "\${it_icon[i]}" ] && [ -n "\${it_title[i]}" ] && [ -n "\${it_exec[i]}" ] && [ "\$IMAGE" != "false" ]; then
            printf "%s\\t%s" "img://\${it_icon[i]}" "\${it_title[i]}"
        elif [ -n "\${it_title[i]}" ] && [ -n "\${it_exec[i]}" ]; then
            printf "%s" "\${it_title[i]}"
        else
            continue
        fi

        if [ -n "\${it_desc[i]}" ] && [ "\$DISPLAY_DESCRIPTION" = "true" ]; then
            [ "\$DMENU_COMPAT" != "true" ] && COL='\\033[0;31m'
            printf -- "\$DESCRIPTION_SEPARATOR%b%s" "\${COL}" "\${it_desc[i]}"
        fi

        if [ -n "\${it_comment[i]}" ] && [ "\$DISPLAY_COMMENT" = "true" ]; then
            [ "\$DMENU_COMPAT" != "true" ] && COL='\\033[0;32m'
            printf -- "\$COMMENT_SEPARATOR%b%s" "\${COL}" "\${it_comment[i]}"
        fi

        printf "\n"
    done
}
EOF
[ -f "$CONFDIR/spmenu/run/config" ] && . "$CONFDIR/spmenu/run/config" && return
}

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

    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"

        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"
}

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

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

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

    exit 0
}

exec_cmd() {
    [ -z "$EXEC" ] && EXEC=shell
    [ "$STDOUT" != "false" ] && printf "%s\n" "$sout" && exit 1
    command -v run_post_func > /dev/null && run_post_func "$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
}

remove_arg() {
    args="$(printf "%s\n" "$args" | sed "s|$1||g")"
}

read_args() {
    function="${DEFAULT_FEATURE:-run}" # default functionality
    dir="${DEFAULT_DIRECTORY:-$(pwd)}" # default directory
    args="$(printf "%s\n" "$@")"
    argc="$(printf "%s\n" "$@" | grep -c "")"

    while true; do
        i=$((i+1))
        arg="$(printf "%s\n" "$args" | sed "${i}q;d")"
        narg="$(printf "%s\n" "$args" | sed "$((i+1))q;d")"

        case "$arg" in
            -x|--run) remove_arg "$arg" && function=run ;;
            -o|--stdout) remove_arg "$arg" && STDOUT=true ;;
            -no|--no-stdout) remove_arg "$arg" && STDOUT=false ;;
            -sb|--show-bookmarks) remove_arg "$arg" && SHOW_BM=true ;;
            -nsb|--no-show-bookmarks) remove_arg "$arg" && SHOW_BM=false ;;
            -fm|--fm) remove_arg "$arg"
                [ -d "$narg" ] && dir="$narg" && remove_arg "$narg"
                function=fm
                ;;
            -cc|--clear-cache) remove_arg "$arg"
                clearcache="true"
                ;;
            -d|--desktop) remove_arg "$arg"
                function=desktop
                ;;
            -p|--full-path) remove_arg "$arg"
                USE_FULL_PATH="true"
                ;;
            -np|--no-full-path) remove_arg "$arg"
                USE_FULL_PATH="false"
                ;;
            -dm|--dmenu) remove_arg "$arg"
                DMENU_COMPAT="true"
                ;;
            -ndm|--no-dmenu) remove_arg "$arg"
                DMENU_COMPAT="false"
                ;;
            -a|--args) remove_arg "$arg"
                [ -z "$narg" ] && printf "You must specify a list of arguments to pass to %s.\n" "$RUNLAUNCHER" && exit 1

                remove_arg "$narg"
                MARGS="$narg"
                ;;
            -h|--help) remove_arg "$arg" && function=help
                ;;
            "") :
                ;;
            *) printf "spmenu_run: Invalid argument: '%s'. If you meant to pass this to spmenu, use the '%s' option.\n" "$arg" "-a"
                ;;
        esac

        [ "$argc" = "$i" ] && break
    done

    args="$(printf "%s\n" "$*")"
}

exec_file() {
    [ "$USE_FULL_PATH" != "false" ] && DIR="$(pwd)/"
    [ "$STDOUT" != "false" ] && printf "%s%s\n" "${DIR}" "$1" && return 0
    command -v fm_post_func > /dev/null && fm_post_func "$1"

    # some default basic parsing
    case "$1" in
        *.html|*.htm) $BROWSER "$1" ;;
        *.pdf) $PDF_READER "$1" ;;
        *.flac|*.mp3|*.wav|*.ogg) $PLAYER "$1" ;;
        *.mp4|*.mov|*.mkv) $PLAYER "$1" ;;
        *.theme) $EDITOR "$1" ;;
        *)
            if [ -x "$1" ]; then
                $TERMINAL -e "$1"
            else
                $GENERIC "$1"
            fi
            ;;
    esac
}

prepare_dirnav() {
    [ ! -d "$dir" ] && return 1
    cd "$dir" || printf "Invalid directory.. somehow\n"

    # TODO: read line by line so we can append/prepend whatever we want
    listing() {
        command -v fm_pre_list_func > /dev/null && fm_pre_list_func
        ls "${ls_args[@]}" > /tmp/spmenu_ls_list # this allows us SGR colors
        printf "..\n" >> /tmp/spmenu_ls_list

        while read -r l; do
            command -v fm_line_func > /dev/null && fm_line_func "$(pwd)/$l"
            printf "%s\n" "$l"
        done < "/tmp/spmenu_ls_list"; rm -f /tmp/spmenu_ls_list

        command -v fm_post_list_func > /dev/null && fm_post_list_func
    }

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

    listing | $RUNLAUNCHER "${rl_fm[@]}" | sed -e 's/\x1b\[[0-9;]*m//g' > /tmp/spmenu_out

    while read -r dir; do
        case "$dir" in
            *)
                if [ -d "$dir" ]; then
                    dir="$(pwd)/$dir"
                    command -v fm_dir_func > /dev/null && fm_dir_func "$dir"
                    prepare_dirnav
                elif [ -f "$dir" ]; then
                    exec_file "$dir"
                else
                    return 1
                fi
                ;;
        esac
        [ "$MULTISELECT" != "true" ] && break
    done < /tmp/spmenu_out; rm -f /tmp/spmenu_out

    [ -z "$dir" ] && return 1
}

print_desktop_help() {
    if [ "$DMENU_COMPAT" != "true" ]; then
        COL='\033[0;31m'
        RUNLAUNCHER_EX_ARGS="--lines 20 --columns 1 --normal --sgr1 $HELP_COLOR --hide-cursor --hide-caps --no-allow-typing --no-color-items --hide-prompt --hide-powerline --hide-input --hide-right-arrow --hide-left-arrow --hide-mode --hide-match-count"
        read -ra rl_ex <<< "${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 modify \$RUNLAUNCHER_ARGS in the config. See 'spmenu --help' for a list of valid arguments to add to the variable.
To configure spmenu itself, you may copy ${DESTDIR}${PREFIX}/share/spmenu.conf to ~/.config/spmenu/spmenu.conf.

By default, spmenu_run will cache entries for speed reasons. You can find these entries in ~/.config/spmenu/run/cache.
If you make changes to .desktop files (not new entries, modified old entries), you need to clear the cache for the changes to appear. Simply delete the directory to do this.

- Type in '?' to show this help screen at any time.

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

print_desktop_list() {
    # should we use cached files?
    if [ -f "$TITLEFILE" ] && [ -f "$ICONFILE" ] && [ -f "$EXECFILE" ] && [ -f "$FILEFILE" ] && [ -f "$DESCFILE" ] && [ -f "$DISPLAYFILE" ] && [ -f "$ONLYFILE" ] && [ -f "$COMMENTFILE" ]; then
        cfiles=true
    else
        cfiles=false
    fi

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

    it_title=()
    it_desc=()
    it_icon=()
    it_exec=()
    it_file=()
    it_term=()
    it_display=()
    it_comment=()
    it_only=()

    # autorefreshing
    if [ "$AUTOREFRESH" = "true" ] && [ "$1" != "noc" ]; then
        entry_c="$(find "${desktopdir[@]}" -type f -name '*.desktop' 2>/dev/null | grep -c "")"
        [ -f "$FILEFILE" ] && cached_c="$(grep -c "" < "$FILEFILE")" || cached_c="0"

        printf "%s: %d\n%s: %d\n" "Cached" "$cached_c" "Entries" "$entry_c" >> "$LOGFILE"

        [ "$cfiles" = "true" ] && [ "$entry_c" != "$cached_c" ] && cfiles=false
    fi

    # print data from entries
    if [ "$cfiles" = "false" ]; then
        command -v desktop_pre_caching_func > /dev/null && desktop_pre_caching_func
        printf "Writing cache files because none exist.\nTitle file: '%s'\nDescription file: '%s'\nIcon file: '%s'\nExec file: '%s'\nFile file: '%s'\nTerm file: '%s'\nDisplay file: '%s'\nOnly file: '%s'\nComment file: '%s'\n" "$TITLEFILE" "$DESCFILE" "$ICONFILE" "$EXECFILE" "$FILEFILE" "$TERMFILE" "$DISPLAYFILE" "$ONLYFILE" "$COMMENTFILE" >> "$LOGFILE"

        [ "$PRINT_LOGS_STDERR" = "true" ] && printf "spmenu_run: Updating .desktop entries.\n" >> /dev/stderr

        icons="$(find "${icondir[@]}" -type f 2>/dev/null)"
        [ -z "$entry" ] && entry="$(find "${desktopdir[@]}" -type f -name '*.desktop' 2>/dev/null)"
        [ -z "$entry_c" ] && entry_c="$(printf "%s\n" "$entry" | grep -c "")"

        rm -f "$TITLEFILE" "$ICONFILE" "$DESCFILE" "$EXECFILE" "$FILEFILE" "$TERMFILE" "$DISPLAYFILE" "$ONLYFILE" "$COMMENTFILE"

        for i in $(seq "$entry_c"); do
            command -v desktop_file_caching_func > /dev/null && desktop_file_caching_func "$cur_file"

            cur_file="$(printf "%s" "$entry" | sed "${i}q;d")"
            [ ! -f "$cur_file" ] && printf "No desktop entries found." && return
            icon_name="$(grep "Icon=" "$cur_file" | head -n 1 | sed "s/Icon=//g")"

            # get details to display
            it_title[i]="$(sed '/\[Desktop Action/q' "$cur_file" | grep "Name=" | grep -v Generic | head -n 1 | sed "s/Name=//g")"
            it_desc[i]="$(sed '/\[Desktop Action/q' "$cur_file" | grep "GenericName=" | sed "s/GenericName=//g")"
            it_comment[i]="$(sed '/\[Desktop Action/q' "$cur_file" | grep "Comment=" | sed "s/Comment=//g")"
            it_icon[i]="$(printf "%s" "$icons" | grep "/${icon_name}[.]" | head -n 1)"
            it_exec[i]="$(sed '/\[Desktop Action/q' "$cur_file" | grep -v "TryExec" | grep -m1 "Exec=" | sed "s/Exec=//g; s/%U//g; s/%F//g; s/%u//g; s/%f//g")"
            it_file[i]="$cur_file"
            it_term[i]="false"
            it_only[i]="false"
            it_display[i]="true"

            if [ "$PREFERRED_LANGUAGE" != "generic" ]; then
                t_title="$(sed '/\[Desktop Action/q' "$cur_file" | grep "Name\[$PREFERRED_LANGUAGE\]=" | grep -v Generic | head -n 1 | sed "s/Name\[$PREFERRED_LANGUAGE\]=//g")"
                t_desc="$(sed '/\[Desktop Action/q' "$cur_file" | grep "GenericName\[$PREFERRED_LANGUAGE\]=" | sed "s/GenericName\[$PREFERRED_LANGUAGE\]=//g")"
                t_comment="$(sed '/\[Desktop Action/q' "$cur_file" | grep "Comment\[$PREFERRED_LANGUAGE\]=" | sed "s/Comment\[$PREFERRED_LANGUAGE\]=//g")"

                [ -n "$t_title" ] && it_title[i]="$t_title"
                [ -n "$t_desc" ] && it_desc[i]="$t_desc"
                [ -n "$t_comment" ] && it_comment[i]="$t_comment"
            fi

            grep -q "Terminal=true" "$cur_file" && it_term[i]="true"
            grep -q "NoDisplay=true" "$cur_file" && it_display[i]="false"
            grep -q "OnlyShowIn=" "$cur_file" && it_only[i]="true"

            # write files
            printf "%s\n" "${it_title[i]}" >> "$TITLEFILE"
            printf "%s\n" "${it_icon[i]}" >> "$ICONFILE"
            printf "%s\n" "${it_desc[i]}" >> "$DESCFILE"
            printf "%s\n" "${it_exec[i]}" >> "$EXECFILE"
            printf "%s\n" "${it_file[i]}" >> "$FILEFILE"
            printf "%s\n" "${it_term[i]}" >> "$TERMFILE"
            printf "%s\n" "${it_display[i]}" >> "$DISPLAYFILE"
            printf "%s\n" "${it_comment[i]}" >> "$COMMENTFILE"
            printf "%s\n" "${it_only[i]}" >> "$ONLYFILE"

            # log it all
            printf "%d. Title - %s\n" "${i}" "${it_title[i]}" >> "$LOGFILE"
            printf "%d. Description - %s\n" "${i}" "${it_desc[i]}" >> "$LOGFILE"
            printf "%d. Executable - %s\n" "${i}" "${it_exec[i]}" >> "$LOGFILE"
            printf "%d. Icon - %s\n" "${i}" "${it_icon[i]}" >> "$LOGFILE"
            printf "%d. File - %s\n" "${i}" "${it_file[i]}" >> "$LOGFILE"
            printf "%d. Term - %s\n" "${i}" "${it_term[i]}" >> "$LOGFILE"
            printf "%d. Display - %s\n" "${i}" "${it_display[i]}" >> "$LOGFILE"
            printf "%d. Only - %s\n" "${i}" "${it_only[i]}" >> "$LOGFILE"
            printf "%d. Comment - %s\n" "${i}" "${it_comment[i]}" >> "$LOGFILE"
        done

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

        print_desktop_list "noc"
    else # we have entries, let's populate the arrays
        command -v desktop_pre_func > /dev/null && desktop_pre_func

        mapfile -t it_title < "$TITLEFILE"
        mapfile -t it_icon < "$ICONFILE"
        mapfile -t it_exec < "$EXECFILE"
        mapfile -t it_file < "$FILEFILE"
        mapfile -t it_desc < "$DESCFILE"
        mapfile -t it_display < "$DISPLAYFILE"
        mapfile -t it_only < "$ONLYFILE"
        mapfile -t it_comment < "$COMMENTFILE"

        d_print_array
    fi
}

d_print_array() {
    command -v print_array > /dev/null && print_array && return

    for i in "${!it_title[@]}"; do
        [ "$RESPECT_ONLYSHOWIN" != "false" ] && [ "${it_only[i]}" != "false" ] && continue
        [ "$RESPECT_NODISPLAY" != "false" ] && [ "${it_display[i]}" != "true" ] && continue

        if [ -f "${it_icon[i]}" ] && [ -n "${it_title[i]}" ] && [ -n "${it_exec[i]}" ] && [ "$IMAGE" != "false" ]; then
            printf "%s\t%s" "img://${it_icon[i]}" "${it_title[i]}"
        elif [ -n "${it_title[i]}" ] && [ -n "${it_exec[i]}" ]; then
            printf "%s" "${it_title[i]}"
        else
            continue
        fi

        if [ -n "${it_desc[i]}" ] && [ "$DISPLAY_DESCRIPTION" = "true" ]; then
            [ "$DMENU_COMPAT" != "true" ] && COL='\033[0;31m'
            printf -- "$DESCRIPTION_SEPARATOR%b%s" "${COL}" "${it_desc[i]}"
        fi

        if [ -n "${it_comment[i]}" ] && [ "$DISPLAY_COMMENT" = "true" ]; then
            [ "$DMENU_COMPAT" != "true" ] && COL='\033[0;32m'
            printf -- "$COMMENT_SEPARATOR%b%s" "${COL}" "${it_comment[i]}"
        fi

        printf "\n"
    done
}

exec_program() {
    [ ! -f "$TITLEFILE" ] || [ ! -f "$EXECFILE" ] || [ ! -f "$TERMFILE" ] && exit 1
    mapfile -t it_title < "$TITLEFILE"
    mapfile -t it_exec < "$EXECFILE"
    mapfile -t it_term < "$TERMFILE"

    # set exec
    [ -z "${it_exec[1]}" ] && printf "Executable array is empty.\n" >> "$LOGFILE"
    for i in "${!it_title[@]}"; do
        if [ "${it_title[i]}" = "$menusel" ]; then
            exec="${it_exec[i]}"
            term="${it_term[i]}"

            printf "Executable %s is: '%s'\n" "$i" "${it_exec[i]}" >> "$LOGFILE"
            printf "Executable %s term status: '%s'\n" "$i" "${it_term[i]}" >> "$LOGFILE"

            break;
        else
            printf "Executable %s is: '%s'\n" "$i" "${it_exec[i]}" >> "$LOGFILE"
            printf "Executable %s term status: '%s'\n" "$i" "${it_term[i]}" >> "$LOGFILE"
        fi
    done

    # finally run the program
    if [ -n "$exec" ] && [ "$term" = "false" ]; then
        ${SHELL:-/bin/sh} -c "$exec" &
    elif [ -n "$exec" ] && [ "$term" = "true" ]; then
        ${TERMINAL} -e "$exec" &
    else
        printf "No executable found. Try clearing cache." >> "$LOGFILE"
    fi
}

print_desktop_menu() {
    check_desktop

    HIDDEN_ENTRY_KEYWORDS="${HIDDEN_ENTRY_KEYWORDS:-NULL_ENTRY}"

    print_desktop_list "" | uniq "${uniq_args[@]}" | sort "${sort_args[@]}" | grep -vE "$HIDDEN_ENTRY_KEYWORDS" | grep -E "$ENTRY_KEYWORDS" | $RUNLAUNCHER "${rl_desktop[@]}" > /tmp/spmenu_out

    while read -r menusel; do
        [ "$menusel" = "?" ] && print_desktop_help && print_desktop_menu
        command -v desktop_post_func > /dev/null && desktop_post_func "$menusel"
        [ -z "$menusel" ] && return 1 \
            || printf "User input: %s\n" "$menusel" >> "$LOGFILE"

        # this must now be the title only
        menusel="$(printf "%s" "$menusel" | sed "s/ -.*//")"

        exec_program "$@"
        [ "$MULTISELECT" != "true" ] && break
    done < /tmp/spmenu_out; rm -f /tmp/spmenu_out
}

prep_desktop() {
    printf "spmenu_run log (%s)\nFunction: Desktop\n" "$(date "+%D %T")" > "$LOGFILE"
}

clear_cache() {
    rm -f "${TITLEFILE}" "${FILEFILE}" "${EXECFILE}" "${ICONFILE}" "${DESCFILE}" "${TERMFILE}" "${DISPLAYFILE}" "${ONLYFILE}" "${COMMENTFILE}"
}

main() {
    rm -f "$LOGFILE"
    print_config
    read_args "$@"
    check "$args"

    if [ ! -f "$HISTORY" ]; then
        mkdir -p "$(dirname "$HISTORY")"
        touch "$HISTORY" && HIST_ARG="--hist-file $HISTORY" || printf "spmenu_run: Failed to write history file" >> /dev/stderr
    else
        HIST_ARG="--hist-file $HISTORY"
    fi

    # some run launcher args
    RUNLAUNCHER_FM_ARGS="--insert $HIST_ARG $RUNLAUNCHER_FM_ARGS $MARGS"
    RUNLAUNCHER_RUN_ARGS="--insert $HIST_ARG $RUNLAUNCHER_RUN_ARGS $MARGS"
    RUNLAUNCHER_BM_ARGS="--insert $HIST_ARG --prompt Bookmarks $RUNLAUNCHER_BM_ARGS $MARGS"
    RUNLAUNCHER_DESKTOP_ARGS="--sgr1 $DESCRIPTION_COLOR --sgr2 $COMMENT_COLOR --lines 20 --columns 1 --image-size 100 --image-gaps 20 --display-icons $RUNLAUNCHER_DESKTOP_ARGS $MARGS"
    RUNLAUNCHER_HELP_ARGS="--insert $HIST_ARG $RUNLAUNCHER_HELP_ARGS $MARGS"

    # dmenu compatibility
    DMENU_FM_ARGS="-l 20 $MARGS"
    DMENU_RUN_ARGS="$MARGS"
    DMENU_BM_ARGS="$MARGS -p Bookmarks"
    DMENU_DESKTOP_ARGS="-l 20 $MARGS"
    DMENU_HELP_ARGS="-l 20 $MARGS"
    COMPAT_LS_ARGS="--color=never"

    if [ "$DMENU_COMPAT" != "false" ]; then
        IMAGE="false"
        RUNLAUNCHER="dmenu"
        RUNLAUNCHER_FM_ARGS="$DMENU_FM_ARGS"
        RUNLAUNCHER_RUN_ARGS="$DMENU_RUN_ARGS"
        RUNLAUNCHER_DESKTOP_ARGS="$DMENU_DESKTOP_ARGS"
        RUNLAUNCHER_HELP_ARGS="$DMENU_HELP_ARGS"
        RUNLAUNCHER_BM_ARGS="$DMENU_BM_ARGS"
        LS_ARGS="$COMPAT_LS_ARGS"
    fi

    # read to arrays
    read -ra rl_fm <<< "${RUNLAUNCHER_FM_ARGS}"
    read -ra rl_run <<< "${RUNLAUNCHER_RUN_ARGS}"
    read -ra rl_bm <<< "${RUNLAUNCHER_BM_ARGS}"
    read -ra rl_desktop <<< "${RUNLAUNCHER_DESKTOP_ARGS}"
    read -ra rl_help <<< "${RUNLAUNCHER_HELP_ARGS}"
    read -ra ls_args <<< "${LS_ARGS}"
    read -ra desktopdir <<< "${DESKTOP_DIR}"
    read -ra icondir <<< "${ICON_DIR}"

    # clear cache
    [ "$clearcache" = "true" ] && clear_cache

    # $PATH listing
    case "$function" in
        "run")
            parse "$args"
            ;;
        "fm") prepare_dirnav "$args" && exit 0 || exit 1
            ;;
        "desktop")
            prep_desktop
            print_desktop_menu "$args"
            ;;
        "help")
            print_cli_help
            exit 0
            ;;
        *)
            printf "Undefined function: '%s'\n" "$function"
            exit 1
            ;;
    esac
}

# shellcheck disable=SC2031
main "$@"