#!/usr/bin/env bash

# Dialog setup:
DIALOG_ITEM_HELP=""
export DIALOGOPTS='--no-lines --visit-items'


# 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"
)

gameOption="$(dialog --backtitle "Select your Doom!" \
        --clear \
        --no-tags \
        --ok-label "Single Player" \
        --cancel-label "Death Match" \
        --extra-button \
        --extra-label "co-op" \
        --help-button \
        --help-label "Exit" \
        --menu "Please select one" 0 0 0 "${doomGames[@]}" --stdout)"
buttonCode=$?

case ${buttonCode} in
    1)
        # Death match setup
        echo "Not yet implemented."
        exit 1
    ;;
    2)
        # Exit was pressed, so exit.
        exit 0
    ;;
    3)
        # Co-op setup
        echo "Not yet implemented."
        exit 1
    ;;
    0)
    exec stdbuf -oL ${gameOption} | stdbuf -oL grep -E \
        -e '^[0-9]+\. ' \
        -e '^"cl_run"' \
        -e '^Game saved. ' \
        -e '^A secret is revealed!$' \
        -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
    ;;
esac

exit 0