#!/usr/bin/env bash


menulist() {
    # Args: tag item.
    # returns: selected tag
    dialog --backtitle "Select your Doom!" \
        --clear \
        --no-tags \
        --menu "Please select one" 0 0 0 "${@}" --stdout
    if [[ $? -ne 1 ]]; then
        exit 0
    fi
}


# Path where doom wads are stored
doomPath="$(find /usr/share -type d -name "doom" 2> /dev/null | head -1)"

# Path to gzdoom.
gzdoom="$(command -v gzdoom)"

# Version of the accessibility mod
tobyVersion="6-1"


doomGames=(
    # Unmodified Doom with accessibility.
    "${gzdoom} ${doomPath}/TobyAccMod_V${tobyVersion}.pk3" "FreeDoom"
    # Toby accessibility mods
    "${gzdoom} ${doomPath}/TobyAccMod_V${tobyVersion}.pk3 ${doomPath}/TobyDoomLevels.wad" "Freedoom Toby Mod"
    # OperationMDK
    "${gzdoom} ${doomPath}/TobyAccMod_V${tobyVersion}.pk3 ${doomPath}/OpMDK.wad" "Freedoom OperationMDK"
)

exec stdbuf -oL $(menulist "${doomGames[@]}") | stdbuf -oL grep -E \
    -e '^[0-9]+\. ' \
    -e '^"cl_run"' \
    -e '^Game saved. ' \
    -e '^A secret is revealed!$' \
    -e '^MAP[0-9]*' \
    -e '^Player was ' \
    -e '^Please select a game wad \(or 0 to exit\):' \
    -e '^You have no keys in your pocket!$' | stdbuf -oL sed \
    -e 's/"cl_run" = "true"/run/' \
    -e 's/"cl_run" = "false"/walk/' \
    -e 's/MAP0\([1-9]\)/Map \1/' \
    -e 's:.*/:Game saved. (:' | spd-say -e

exit 0