#!/usr/bin/env bash

version=1
filename=beamline_fieldmaps_v$version.tar.gz
# url=http://micewww.pp.rl.ac.uk/maus/$filename
url=http://heplnv152.pp.rl.ac.uk/maus/$filename

echo
echo 'INFO: Installing beamline field maps' $version
echo '----------------------------------------------'
echo

echo $version $filename $url

if [ -n "${MAUS_ROOT_DIR+x}" ]; then
    if [ -e "${MAUS_ROOT_DIR}/third_party/source/${filename}" ]
    then
        echo "INFO: Found source archive in 'source' directory"
    else  
        echo "INFO: Source archive doesn't exist.  Downloading..."
        wget --directory-prefix=${MAUS_ROOT_DIR}/third_party/source ${url}
    fi
   
    if [ -e "${MAUS_ROOT_DIR}/third_party/source/${filename}" ]
    then
        echo "INFO: Source archive exists."
        echo
        echo "INFO: Checking MD5 checksum (otherwise the file didn't"
        echo "INFO: download properly):"
        echo
        cd ${MAUS_ROOT_DIR}/third_party/source
        md5sum -c ${filename}.md5 || { echo "FATAL: Failed to download:" >&2; echo "FATAL: ${filename}." >&2; echo "FATAL: MD5 checksum failed.">&2; echo "FATAL: Try rerunning this command to redownload, or check" >&2; echo "FATAL: internet connection"  >&2; rm -f ${filename}; exit 1; }
        sleep 1
        echo
        echo "INFO: Unpacking:"
        echo
        tar xvfz ${MAUS_ROOT_DIR}/third_party/source/${filename} -C ${MAUS_ROOT_DIR}/src/legacy/FILES/Models/Modules/BeamLine/

        ################################################## 
        echo
        echo "INFO: The package should be locally installed now in your"
        echo "INFO: FILES directory, which the rest of MAUS will find"
    else
        echo "FATAL: Source archive still doesn't exist.  Please file a bug report with your operating system,">&2
        echo "FATAL: distribution, and any other useful information at:" >&2
        echo "FATAL: " >&2
        echo "FATAL: http://micewww.pp.rl.ac.uk/projects/maus/issues/" >&2
        echo "FATAL:" >&2
        echo "FATAL: Giving up, sorry..." >&2
        exit 1
    fi
  
else         ################################################## 
    echo
    echo "FATAL: MAUS_ROOT_DIR is not set, which is required to" >&2  
    echo "FATAL: know where to install this package.  You have two" >&2 
    echo "FATAL: options:" >&2
    echo "FATAL:" >&2
    echo "FATAL: 1. Set the MAUS_ROOT_DIR from the command line by" >&2 
    echo "FATAL: (if XXX is the directory where MAUS is installed):" >&2
    echo "FATAL:" >&2 
    echo "FATAL:        MAUS_ROOT_DIR=XXX ${0}" >&2
    echo "FATAL:" >&2
    echo "FATAL: 2. Run the './configure' script in the MAUS ROOT" >&2 
    echo "FATAL: directory, run 'source env.sh' then rerun this" >&2  
    echo "FATAL: command ">&2
    exit 1
fi

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