# common functions

# get_file <base_url> <file> <dir>
# downlaods file from $base_url/$file into directory $dir
function get_file() {
  local base_url=$1
  local file=$2
  local dir=$3

  if [ ! -e $dir ]; then
    mkdir $dir
  fi
  if [ -e $dir/$file ]; then
    rm $dir/$file
  fi
  pushd $dir > /dev/null
  wget $base_url/$file
  popd > /dev/null
}

# setup_artifacts <tag> <suffix>
# downloads artifacts to build installer:
#   1. geoserver bin artifact
#   2. installer specific artifact specified by <suffix>
# files are unpacked into tmp directory
function setup_artifacts() {
  local tag=$1
  local suf=$2

  local gs_artifact=geoserver-$tag-bin.zip
  local installer_artifact=geoserver-$tag-$suf.zip

  if [ -z $SKIP_DOWNLOAD ]; then
    get_file $DIST_URL/$tag $gs_artifact files
    get_file $DIST_URL/$tag $installer_artifact files
  fi

  # unpack the artifacts
  if [ -e tmp ]; then
    rm -rf tmp
  fi
  mkdir -p tmp

  unzip -d tmp files/$installer_artifact
  unzip -d tmp files/$gs_artifact
}

# upload_installer <tag> <file>
# uploads file <file> to distribution server under tag <tag>
function upload_installer() {
  local tag=$1
  local file=$2
  local ssh_opts="-i $DIST_PK -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no"

  if [ -z $SKIP_UPLOAD ]; then
    echo "uploading $file"
    scp $ssh_opts -P $DIST_PORT $file $DIST_USER@$DIST_HOST:$DIST_PATH/$tag
  fi
}

# start_installer_job <hudson_url> <tag>
# starts a hudson installer job
function start_installer_job() {
  curl -k --connect-timeout 10 "$1/job/geoserver-installer/buildWithParameters?TAG=$2"
}

# is_version_nuym <str>
# tests a string to see if it is a x.y.z or x.y-z style version number
function is_version_num() {
  local str=$1
  if [ "$( echo $str | egrep "[0-9]+\.[0-9]+((\.|-).*)?" )" == "$str" ]; then
    echo "1"
  else
     if [ "$( echo $str | egrep "[0-9]+-.*" )" == "$str" ]; then
       echo "1"
     else
       echo "0"
     fi
  fi
}

# get_pom_version <pom>
# gets the version declared in a pom file
function get_pom_version() {
  local pom=$1
  echo `grep "<version>" $pom | head -n 1 | sed 's/<.*>\(.*\)<\/.*>/\1/g' | sed 's/ //g'`
}

# get_jira_id <tag>
# gets the jira id for a version named <tag>
function get_jira_id() {
  local tag=$1
  local jira_id=`curl -s -G $JIRA_REST/project/$JIRA_PROJ/versions | tr "{" "\n" | grep $tag | tr "," "\n" | grep "\"id\"" | sed 's/"id": *"\([0-9]\+\).*/\1/g'`

  if [ ! -z $jira_id ]; then
    echo $jira_id
  fi
}