#!/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="7-0"


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

grepStrings=(
    '-E'
    '-e' '^[0-9]+\. '
    '-e' '^"cl_run"'
    '-e' '^Game saved. '
    '-e' '^A secret is revealed!$'
    '-e' '^MAP[0-9]*'
    '-e' '^Player[: ]'
    '-e' '^Please select a game wad \(or 0 to exit\):'
    '-e' '^You have no keys in your pocket!$'
)

sedStrings=(
        '-e' 's/"cl_run" = "true"/run/'
        '-e' 's/"cl_run" = "false"/walk/'
        '-e' 's/MAP0\([1-9]\)/Map \1/'
        '-e' 's:.*/:Game saved. (:'
)

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=$?
if [[ -e "${doomPath}/DoomMetalVol6.wad" ]]; then
    gameOption+=" ${doomPath}/DoomMetalVol6.wad"
fi

case ${buttonCode} in
    1)
        # Death match setup
        dialog --backtitle "Death Match" \
            --clear \
            --msgbox "Coming soon!" -1 -1 --stdout
        exit 1
    ;;
    2)
        # Exit was pressed, so exit.
        exit 0
    ;;
    3)
        # Co-op setup
        ipAddress="$(dialog --backtitle "Co-op Options" \
            --clear \
            --no-tags \
            --ok-label "Join" \
            --cancel-label "Exit" \
            --extra-button \
            --extra-label "Host" \
            --inputbox "Enter ip or URL, required for join." -1 -1 --stdout)"
        buttonCode=$?
        [[ $buttonCode -eq 1 ]] && exit 0
        if [[ $buttonCode -eq 0 ]]; then
            if [[ "${#ipAddress}" -lt 3 ]]; then
                dialog --backtitle "Co-op" --clear --msgbox "No ip address or URL given." -1 -1 --stdout
                exit 1
            fi
            flags=("${doomPath}/keyshare-universal.pk3" '-join' "${ipAddress}")
        else
            # Get ip address
            yourIpAddress="$(curl -4s https://icanhazip.com)"
            players="$(dialog --backtitle "Host Co-op Game" \
                --clear \
                --ok-label "Next" \
                --cancel-label "Exit" \
                --rangebox "Select number of players. Remember to give them your IP address: ${yourIpAddress}" -1 -1 2 10 --stdout)"
            [[ $? -eq 1 ]] && exit 0
            skillLevel="$(dialog --backtitle "Host Co-op Game" \
                --clear \
                --ok-label "Start" \
                --cancel-label "Exit" \
                --rangebox "Select difficulty. 1 easiest, 5 hardest." -1 -1 1 5 3 --stdout)"
            [[ $? -eq 1 ]] && exit 0
            flags=(
                    "${doomPath}/keyshare-universal.pk3"
                    '-host' "${players}"
                    '-skill' "${skillLevel}"
                    '+set' 'sv_cheats' '1'
                    '+set' 'sv_weaponsstay' '1'
                    '+set'  'sv_respawnprotect' '1'
                    '+set' 'sv_respawnsuper' '1'
                    '+set' 'alwaysapplydmflags' ''1
                    '-extratic' '-dup' '3'
            )
        fi
        pushd "${doomPath}"
        exec stdbuf -oL ${gzdoom} ${gameOption} "${flags[@]}" | while IFS= read -r l ; do echo "$l" | { grep "${grepStrings[@]}" | sed "${sedStrings[@]}" | spd-say -e; } || echo "$l";done
    ;;
    0)
    pushd "${doomPath}"
    exec stdbuf -oL ${gzdoom} ${gameOption} | while IFS= read -r l ; do echo "$l" | { grep "${grepStrings[@]}" | sed "${sedStrings[@]}" | spd-say -e > /dev/null 2>&1; }; echo "$l";done
    ;;
esac

exit 0