#!/bin/bash
#
# Description:
# This file is part of UnReal World RPG version 3.71
# It launches UrW and set up configs
#
# License only for this 'urw'-file not for whole UnReal World RPG codebase
# or attached files:
#
# Copyright (c) 2017-2021 Tuukka Pasanen <tuukka.pasanen@ilmi.fi>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#

IFS=$'\n'
URW_OS=$(uname)
URW_BIN="urw3-bin"
URW_VERSION="3.71"

if [ "${URW_OS}" == "Linux" ]
then
    echo " > Running under: Linux"
    URW_HOME="${HOME}/.config/urw3-$(uname)"
    if [ -n "${APPDIR}" ]
    then
        echo " > We are under AppImage"
        URW_DATA="${APPDIR}/usr/share/urw3"
        URW_BIN_DIR="${APPDIR}/usr/bin"
    elif [ -d "/usr/share/urw3" ]
    then
        URW_DATA="/usr/share/urw3"
        URW_BIN_DIR="/usr/bin"
    else
        echo "You probably are UBUNTU PPA user!"
        URW_DATA="/opt/urw3"
        URW_BIN_DIR="/opt/urw3"
    fi
fi

if [ "${URW_OS}" == "Darwin" ]
then
    echo " > Running under: Mac OS (X)"
    URW_HOME="${HOME}/Library/Application Support/urw3-$(uname)"
    URW_APP_LOCATION="$(dirname "$0")/.."
    if [ "${URW_APP_LOCATION}" == "./.." ]
    then
        URW_APP_LOCATION="$(pwd)/.."
    fi

    URW_DATA="${URW_APP_LOCATION}/Resources"
    URW_BIN_DIR="${URW_APP_LOCATION}/Resources"
fi


URW_HOME_GFX="${URW_HOME}/truegfx"
URW_HOME_TILE="${URW_HOME}/truetile"
URW_HOME_AUDIO="${URW_HOME}/audio"
URW_HOME_DEFAULTS="${URW_HOME}/defaults"
URW_HOME_MESSAGES="${URW_HOME}/messages"
URW_HOME_GAMEINFO="${URW_HOME}/gameinfo"

#
# Files that are absolutly needed
#
URW_FILES="${URW_DATA}/truegfx/*.jpg\n\
${URW_DATA}/truegfx/*.png\n\
${URW_DATA}/truetile/*.png\n\
${URW_DATA}/truetile/*.txt\n\
${URW_DATA}/audio/*.wav\n\
${URW_DATA}/audio/*.ogg\n\
${URW_DATA}/gameinfo/*.txt\n\
${URW_DATA}/defaults/urw_ini.def\n\
${URW_DATA}/messages/*.txt\n\
${URW_DATA}/*.RIT\n\
${URW_DATA}/*.arr\n\
${URW_DATA}/*.txt\n\
${URW_DATA}/*.TXT\n\
${URW_DATA}/*.FNT\n\
${URW_DATA}/*.NFO\n\
${URW_DATA}/*.STD\n\
${URW_DATA}/RNDCAMP.*\n\
${URW_DATA}/*.dat\n\
${URW_DATA}/*.nfo"

#
# Files that needs to be copied to user dir
#
URW_FILE_AUDIO=("${URW_HOME_AUDIO}/throw.wav" "${URW_HOME_AUDIO}/hitplr.wav" \
    "${URW_HOME_AUDIO}/smear.wav" "${URW_HOME_AUDIO}/bird_peippo.wav" "${URW_HOME_DEFAULTS}/urw_ini.def")

for dir in "${URW_HOME}" "${URW_HOME_GFX}" "${URW_HOME_TILE}" \
    "${URW_HOME_AUDIO}" "${URW_HOME_DEFAULTS}" "${URW_HOME_MESSAGES}" "${URW_HOME_GAMEINFO}"
do
    if [ ! -d "${dir}" ]
    then
        mkdir -p "${dir}"
    fi
done

# Then go to home dir
if [ -d "${URW_HOME}" ]
then
    cd "${URW_HOME}" || exit 1
else
    echo " ! Can't find directory '${URW_HOME}' exiting!"
    exit 1
fi

#
# We have to sanitaze old links that
# URW doesn't crash on start
#
for FILE in $(find -L "${URW_HOME}" -type l)
do
    echo " ! Can't find linked file '${FILE}': remove old link"
    rm -f "${FILE}"
done

for file in $(echo -e "${URW_FILES}")
do
    URW_LINK_FILE=$(echo "${file}" | sed -e "s#${URW_DATA}#${URW_HOME}#")

    # File doesn't exists link/copy it
    if [ ! -e  "${URW_LINK_FILE}" ]
    then
        #
        # Some files we have to copy
        # Some files we have to link
        # Don't ask why but that's the way it's going to be
        #
        if [[ ${URW_FILE_AUDIO[*]} =~ "${URW_LINK_FILE}" ]]
        then
            cp "${file}" "${URW_LINK_FILE}"
        else
            ln -sf "${file}" "${URW_LINK_FILE}"
        fi
    else
        #
        # Be sure that files that neededs to be copied are copied
        #
        if [[ ${URW_FILE_AUDIO[*]} =~ "${URW_LINK_FILE}" ]]
        then
            if [ -L  "${URW_LINK_FILE}" ]
            then
                rm -f "${URW_LINK_FILE}"
                cp "${file}" "${URW_LINK_FILE}"
            fi
        fi
    fi
done

if [ -x "${URW_BIN_DIR}"/"${URW_BIN}" ]
then
    # Launch urw!
    echo " > Entering The UnReal World RPG Version ${URW_VERSION}"
    echo " > App data dir is: '${URW_DATA}'"
    echo " > App home dir is: '${URW_HOME}'"
    "${URW_BIN_DIR}"/"${URW_BIN}"
else
    echo "Can't find binary '${URW_BIN_DIR}/${URW_BIN}' exiting!"
    exit 1
fi
