#!/bin/bash
# Rebuild custom UI files using patches
# -u, --update to update the patch set with new changes

GAME_PATH=/mnt/d/EverQuest
UI_NAME=isuldor

if [[ ! -f "${GAME_PATH}/eqgame.exe" ]]
then
    echo "Notice: Game path not set, searching for EverQuest..."
    GAME_LOCATION=$(find /mnt -type f -name eqgame.exe ! -path '*RECYCLE.BIN*' 2>/dev/null | head -n1)
    if [[ ${GAME_LOCATION} ]]
    then
        GAME_PATH=$(dirname ${GAME_LOCATION})
        echo "Set GAME_PATH=${GAME_PATH}"
    else
        echo "Error: EverQuest was not found!"
        exit 1
    fi
fi

SCRIPT_PATH=$(dirname ${0})
UI_FOLDER="${GAME_PATH}/uifiles/${UI_NAME}"

# We can update our patch set with changes
if [[ "-u" == ${1} || "--update" == ${1} ]]
then
    echo "Updating patch set!"
#   rm -v "${SCRIPT_PATH}/EQUI_*.diff"
    UI_FILES=( $( find "${UI_FOLDER}" -name '*.xml' -exec basename {} .xml \; ))
    for UI_FILE in "${UI_FILES[@]}"
    do
        diff -u "${GAME_PATH}/uifiles/default/${UI_FILE}.xml" \
            "${UI_FOLDER}/${UI_FILE}.xml" > ${SCRIPT_PATH}/${UI_FILE}.diff 
    done
    exit 0
fi

# Build custom UI directory
mkdir -vp "${UI_FOLDER}"
cp ${SCRIPT_PATH}/*.tga "${UI_FOLDER}/"

# Build an array of all diffs to patch, stripping the extension
UI_FILES=( $( find "${SCRIPT_PATH}" -name '*.diff' -exec basename {} .diff \; ))

for UI_FILE in "${UI_FILES[@]}"
do
    patch -o "${UI_FOLDER}/${UI_FILE}.xml" "${GAME_PATH}/uifiles/default/${UI_FILE}.xml" < ${SCRIPT_PATH}/${UI_FILE}.diff 
done