#!/bin/sh

# should be called periodically on the build-master from the slaves to
#  - report any update on the build process
#  - show that the build is still running
#  - get notified by the build master if the build is not necessary anymore

# shellcheck source=../conf/default.conf
. "${0%/*}/../conf/default.conf"

# TODO: receive/save some statistics about current build

if [ "$(
  # shellcheck disable=SC2016,SC2154
  {
    printf 'SELECT count(*) FROM `build_slaves`'
    mysql_join_build_slaves_build_assignments
    printf ' WHERE `build_slaves`.`name`=from_base64("%s");\n' \
      "$(printf '%s' "${slave}" | base64 -w0)"
  } | \
    mysql_run_query 'unimportant'
  )" -ne 1 ]; then
  >&2 echo 'You do not build anything currently - abort whatever you are doing.'
  exit 2
fi

log_lines=$(cat)


# shellcheck disable=SC2016
{
  printf 'UPDATE `build_slaves`'
  printf ' SET'
  printf ' `build_slaves`.`last_action`=from_base64("%s")' \
    "$(
      printf '%s' "$1" | \
        base64 -w0
    )"

  printf ', `build_slaves`.`logged_lines`='
  if [ -n "${log_lines}" ]; then
    printf 'from_base64("%s")' \
      "$(
        printf '%s' "$((
          $(
            printf '%s' "${log_lines}" | \
              cut -d' ' -f1 | \
              tr '\n' '+'
          )0))" | \
          base64 -w0
      )"
  else
    printf 'NULL'
  fi

  printf ' WHERE `build_slaves`.`name`=from_base64("%s");\n' \
    "$(
      printf '%s' "${slave}" | \
        base64 -w0
    )"
} | \
  mysql_run_query 'unimportant'