#!/usr/bin/env bash

# this localBuildProperties.shsource file is to ease local builds to override some variables.
# It should not be used for production builds.
source localBuildProperties.shsource 2>/dev/null
export BUILD_HOME=${BUILD_HOME:-/shared/eclipse/builds}

# To allow this cron job to work from hudson, or traditional crontab
if [[ -z "${WORKSPACE}" ]]
then
  export UTILITIES_HOME=/shared/eclipse
else
  export UTILITIES_HOME=${WORKSPACE}/utilities/production
fi


# These variable are not correctly defined centrally, 
# and are also defined in various Ant scripts.
# For production, use value for shared instance
HUDSON_PROTOCOL=${HUDSON_PROTOCOL:-"https"}
HUDSON_HOST=${HUDSON_HOST:-"ci.eclipse.org"}
# is standard port for "eclipse", but can not leave blank, since we use ':' in some URLs
HUDSON_PORT=${HUDSON_PORT:-"443"}
HUDSON_ROOT_URI=${HUDSON_ROOT_URI:-"releng"}
# For production, use the special performance machine at eclipse
HUDSON_PERF_HOST=${HUDSON_PERF_HOST:-"ci.eclipse.org"}
HUDSON_PERF_PORT=${HUDSON_PERF_PORT:-"443"}
HUDSON_PERF_PROTOCOL=${HUDSON_PERF_PROTOCOL:-"https"}
LINUX_PERF_SEGMENT=${LINUX_PERF_SEGMENT:-"releng"}

function convertToZeroPaddedMillisecs ()
{
  inNumber=$1
  printf -v outNumber "%.3f" "${inNumber}" 
  RC=$?
  if [[ $RC != 0 ]]  
  then 
    printf "%s" "InvalidInput"
  else
    printf "%s" "${outNumber}"
  fi  
}

function dropOnDLServer()
{
  eclipseStream=$1
  if [[ -z "${eclipseStream}" ]]
  then
    printf "\n\n\t%s\n\n" "ERROR: Must provide eclipseStream as first argument, for this function $(basename $0)" >&2
    return 1;
  fi


  buildId=$2
  if [[ -z "${buildId}" ]]
  then
    printf "\n\n\t%s\n\n" "ERROR: Must provide buildType as second argument, for this function $(basename $0)" >&2
    return 1;
  fi

  pathToDL=$( dlToPath "$eclipseStream" "$buildId")

  if [[ "$pathToDL" == 1 ]]
  then
    printf "\n\n\t%s\n\n" "ERROR: pathToDL could not be computed." >&2
    return 1
  fi
  toDir="/home/data/httpd/download.eclipse.org/${pathToDL}"
  echo $toDir
}
function updateSiteOnDL()
{
  eclipseStream=$1
  if [[ -z "${eclipseStream}" ]]
  then
    printf "\n\n\t%s\n\n" "ERROR: Must provide eclipseStream as first argument, for this function $(basename $0)" >&2
    return 1;
  fi


  buildId=$2
  if [[ -z "${buildId}" ]]
  then
    printf "\n\n\t%s\n\n" "ERROR: Must provide buildType as second argument, for this function $(basename $0)" >&2
    return 1;
  fi


  # contrary to intuition (and previous behavior, bash 3.1) do NOT use quotes around right side of expression.
  if [[ "${eclipseStream}" =~ ([[:digit:]]*)\.([[:digit:]]*)\.([[:digit:]]*) ]]
  then
    eclipseStreamMajor=${BASH_REMATCH[1]}
    eclipseStreamMinor=${BASH_REMATCH[2]}
    eclipseStreamService=${BASH_REMATCH[3]}
  else
    echo "ERROR: eclipseStream, $eclipseStream, must contain major, minor, and service versions, such as 4.2.0" >&2
    exit 1
  fi
  buildType=${buildId:0:1}

  toSiteDir="/home/data/httpd/download.eclipse.org/eclipse/updates"


  updatesSuffix="builds"

  toMainUpdateDir=$toSiteDir/${eclipseStreamMajor}.${eclipseStreamMinor}-${buildType}-${updatesSuffix}/
  # We'll check for existence, and create if doesn't exist ... as long as it is "under" our
  # toSiteDir, it is likely an intentional new one, rather than an error.
  if [[ ! -d "${toMainUpdateDir}" ]]
  then
    if [[ -d "${toSiteDir}" ]]
    then
      # create
      mkdir -p "${toMainUpdateDir}"
      RC=$?
      if [[ $RC != 0 ]]
      then
        echo "ERROR: could not create main update site: ${toMainUpdateDir}" >&2
        # "return" empty string, as indication of error"
        toMainUpdateDir=""
      fi
    else
      echo "PROGRAM ERROR: main update site root did not exist: ${toSiteDir}" >&2
      # "return" empty string, as indication of error"
      toMainUpdateDir=""
    fi
  fi
  echo $toMainUpdateDir
}
# compute update site on build server
function updateSiteOnBuildDir()
{
  eclipseStream=$1
  if [[ -z "${eclipseStream}" ]]
  then
    printf "\n\n\t%s\n\n" "ERROR: Must provide eclipseStream as first argument, for this function $(basename $0)" >&2
    return 1;
  fi


  buildId=$2
  if [[ -z "${buildId}" ]]
  then
    printf "\n\n\t%s\n\n" "ERROR: Must provide buildType as second argument, for this function $(basename $0)" >&2
    return 1;
  fi

  # contrary to intuition (and previous behavior, bash 3.1) do NOT use quotes around right side of expression.
  if [[ "${eclipseStream}" =~ ([[:digit:]]*)\.([[:digit:]]*)\.([[:digit:]]*) ]]
  then
    eclipseStreamMajor=${BASH_REMATCH[1]}
    eclipseStreamMinor=${BASH_REMATCH[2]}
    eclipseStreamService=${BASH_REMATCH[3]}
  else
    echo "eclipseStream, $eclipseStream, must contain major, minor, and service versions, such as 4.2.0" >&2
    return 1
  fi
  buildType=${buildId:0:1}


  buildRoot=${BUILD_HOME}/${eclipseStreamMajor}${buildType}

  siteDir=${buildRoot}/siteDir
  updatesSuffix="builds"
  fromDir=$siteDir/updates/${eclipseStreamMajor}.${eclipseStreamMinor}-${buildType}-${updatesSuffix}/${buildId}

  echo $fromDir
}

# compute main part of download server drop directory
function dropFromBuildDir ()
{

  eclipseStream=$1
  buildId=$2
  pathFromDL=$( dlFromPath "$eclipseStream" "$buildId" )


  if [[ "$pathFromDL" == 1 ]]
  then
    printf "\n\n\t%s\n\n" "ERROR: pathToDL could not be computed." >&2
    return 1
  fi

  eclipseStreamMajor=${eclipseStream:0:1}
  buildType=${buildId:0:1}

  buildRoot=${BUILD_HOME}/${eclipseStreamMajor}${buildType}

  siteDir=${buildRoot}/siteDir

  fromDir=${siteDir}/${pathFromDL}/${buildId}

  echo "$fromDir"

}

# compute main (middle part) of download site
function dlToPath()
{
  eclipseStream=$1
  if [[ -z "${eclipseStream}" ]]
  then
    printf "\n\n\t%s\n\n" "ERROR: Must provide eclipseStream as first argument, for this function $(basename $0)" >&2
    return 1;
  fi


  buildId=$2
  if [[ -z "${buildId}" ]]
  then
    printf "\n\n\t%s\n\n" "ERROR: Must provide buildId as second argument, for this function $(basename $0)" >&2
    return 1;
  fi

  eclipseStreamMajor=${eclipseStream:0:1}
  buildType=${buildId:0:1}

  pathToDL=eclipse/downloads/drops
  if (( $eclipseStreamMajor > 3 ))
  then
    pathToDL=$pathToDL$eclipseStreamMajor
  fi

  echo $pathToDL
}

function dlFromPath()
{
  eclipseStream=$1
  if [[ -z "${eclipseStream}" ]]
  then
    printf "\n\n\t%s\n\n" "ERROR: Must provide eclipseStream as first argument, for this function $(basename $0)" >&2
    return 1;
  fi


  buildId=$2
  if [[ -z "${buildId}" ]]
  then
    printf "\n\n\t%s\n\n" "ERROR: Must provide buildId as second argument, for this function $(basename $0)" >&2
    return 1;
  fi

  eclipseStreamMajor=${eclipseStream:0:1}
  buildType=${buildId:0:1}

  pathFromDL=eclipse/downloads/drops
  if (( $eclipseStreamMajor > 3 ))
  then
    pathFromDL=$pathFromDL$eclipseStreamMajor
  fi

  echo $pathFromDL
}


function syncDropLocation ()
{
  echo "start syncDropLocation"
  eclipseStream=$1
  if [[ -z "${eclipseStream}" ]]
  then
    printf "\n\n\t%s\n\n" "ERROR: Must provide eclipseStream as first argument, for this function $(basename $0)" >&2
    return 1;
  fi
  echo "eclipseStream: $eclipseStream"

  buildId=$2
  if [[ -z "${buildId}" ]]
  then
    printf "\n\n\t%s\n\n" "ERROR: Must provide buildId as second argument, for this function $(basename $0)" >&2
    return 1;
  fi
  echo "buildId: $buildId"


  EBUILDER_HASH=$3
  if [[ -z "${EBUILDER_HASH}" ]]
  then
    printf "\n\n\t%s\n\n" "ERROR: Must provide builder (or aggregator) hash as fourth argument, for this function $(basename $0)" >&2
    return 1;
  fi
  echo "EBUILDER_HASH: $EBUILDER_HASH"

  eclipseStreamMajor=${eclipseStream:0:1}
  buildType=${buildId:0:1}

  fromDir=$( dropFromBuildDir $eclipseStream $buildId  )
  if [[ ! -d "${fromDir}" ]]
  then
    echo "ERROR: fromDir is not a directory? fromDir: ${fromDir}"
    return 1
  fi


  toDir=$( dropOnDLServer $eclipseStream $buildId )
  if [[ ! -d "${toDir}" ]]
  then
    echo "ERROR: toDir is not a directory? toDir: ${toDir}"
    return 1
  fi

  echo "   fromDir: ${fromDir}" >&1
  echo "     toDir: ${toDir}" >&1

  # here, for dl site, best not to preserve times, since (if mirrored)
  # would be more accurate for mirroring system to have
  # actual times (and we are copying only one specific
  # sub-directory) (But, we do for now, for easier testing)
  if [[ -n "${fromDir}" && -d "${fromDir}" && -n "${toDir}" && -d "${toDir}" ]]
  then
    # Note the slash at end of aggregator ... we do not want to exclude eclipse.platform.releng.aggregator-(builder hash).zip
    # TODO: remove --verbose, once confident it works as expected.
    rsync --times --omit-dir-times --recursive --prune-empty-dirs --exclude="*apitoolingreference/*" --exclude="*org.eclipse.releng.basebuilder/*" --exclude="*eclipse.platform.releng.aggregator/*" --exclude="*/repository/*" --exclude="*workspace-*/*" "${fromDir}" "${toDir}"
    rccode=$?
  else
    rccode=9
  fi
  if [[ $rccode != 0 ]]
  then
    echo "ERROR: rsync did not complete normally.rccode: $rccode"
    return $rccode
  else
    # Now update main DL page index pages, to show available
    source ${UTILITIES_HOME}/sdk/updateIndexFilesFunction.shsource
    updateIndex
  fi

  echo "ending syncDropLocation"
}
function linkURL ()
{
  url="${1}"
  if [[ -z "${url}" ]]
  then 
    echo "Programming error. URL must not be null as argument to 'linkURL'"
    exit 1
  fi
  link="<a href=\"${url}\">${url}</a>"
  echo ${link}
}

function sendEclipseMail ()
{
  TO="$1"
  FROM="$2"
  SUBJECT="$3"
  message1="$4"
  (
  echo "To: ${TO}"
  echo "From: ${FROM}"
  if [[ -n "${InReplyTo}" ]]
  then
    echo "In-Reply-To: ${InReplyTo}"
  fi
  if [[ -n "${Reference}" ]]
  then
    echo "Reference: ${Reference}"
  fi
  echo "MIME-Version: 1.0"
  echo "Content-Type: text/html; charset=utf-8"
  echo "Subject: ${SUBJECT}"
  echo "<html><body>"
  echo -e "${message1}"
  echo "</body></html>"
  ) | /usr/lib/sendmail -t

}

function setToAndFromAddresses ()
{
# This bit of data is used in a few other scripts, such as
# syncDropLocation.sh and updateDropLoction.sh
# It primarily sets the TO and FROM fields for email. 
# It also supplements the SUBJECT.


# override 'TO' in localBuildProperties.shsource if doing local tests
# for initial testing, only to me -- change as desired after initial testing.
if [[ "${buildType}" =~ [PYXU] ]]
then
  case "${buildType}" in
    "P" )
      export TO=${TO:-"sravankumarl@in.ibm.com,jdt-core-dev@eclipse.org"}
      export SUBJECT="Patch Build: ${SUBJECT}" ;;
    "U" )
      export TO=${TO:-"sravankumarl@in.ibm.com,noopur_gupta@in.ibm.com,jdt-ui-dev@eclipse.org"}
      export SUBJECT="Branch SDK Build: ${SUBJECT}" ;;
    "Y" )
      export TO=${TO:-"sravankumarl@in.ibm.com,jdt-core-dev@eclipse.org"}
      export SUBJECT="Branch SDK Build: ${SUBJECT}" ;;
    "X" )
      export TO=${TO:-"sravankumarl@in.ibm.com"}
      export SUBJECT="Experimental Build: ${SUBJECT}" ;;
    *)
      export TO=${TO:-"sravankumarl@in.ibm.com"}
      export SUBJECT="Unknown buildType ${buildType}: ${SUBJECT}"
      echo -e "\n\tWARNING: Unreachable code. Programming error. case statement did not match any pattern!\n"
  esac
else
  if [[ "${invisibleBuild}" == "true" ]]
  then
    export TO=${TO:-"sravankumarl@in.ibm.com, akurtako@redhat.com"}
  else
    export TO=${TO:-"platform-releng-dev@eclipse.org"}
  fi
fi

export FROM=${FROM:-"genie.releng@eclipse.org"}

}