#!/bin/bash

source maint/travis-ci_scripts/common.bash
if [[ -n "$SHORT_CIRCUIT_SMOKE" ]] ; then return ; fi

# poison the environment - basically look through lib, find all mentioned
# ENVvars and set them to true and see if anything explodes
if [[ "$POISON_ENV" = "true" ]] ; then
  for var in $(grep -P '\$ENV\{' -r lib/ | grep -oP 'DBIC_\w+' | sort -u | grep -v DBIC_TRACE) ; do
    if [[ -z "${!var}" ]] ; then
      export $var=1
    fi
  done

  export DBI_DSN="dbi:ODBC:server=NonexistentServerAddress"
  export DBI_DRIVER="ADO"

  export DBICTEST_SQLITE_REVERSE_DEFAULT_ORDER=1
fi

if [[ "$CLEANTEST" = "true" ]]; then
  # get the last inc/ off cpan - we will get rid of MI
  # soon enough, but till then this will do
  # the point is to have a *really* clean perl (the ones
  # we build are guaranteed to be clean, without side
  # effects from travis preinstalls)

  # trick cpanm into executing true as shell - we just need the find+unpack
  run_or_err "Downloading DBIC inc/ from CPAN" \
    "SHELL=/bin/true cpanm --look DBIx::Class"

  mv ~/.cpanm/latest-build/DBIx-Class-*/inc .

  # older perls do not have a CPAN which understands configure_requires
  # properly and what is worse a `cpan Foo` run exits with 0 even if some
  # modules failed to install
  # The first CPAN which is somewhat sane is around 1.94_56 (perl 5.12)
  # The problem is that the first sane version also brings a *lot* of
  # deps with it, notably things like YAML and HTTP::Tiny
  # The goal of CLEANTEST is to have as little extra stuff installed as
  # possible, mainly to catch "but X is perl core" mistakes
  # So instead we still use our stock (possibly old) CPAN, and add some
  # handholding
  if ! CPAN_is_sane ; then
    for m in \
ExtUtils::MakeMaker \
ExtUtils::CBuilder \
Module::Build \
; do
      run_or_err "Pre-installing $m" "cpan $m"
      if ! perl -e '

eval ( q{require } . (
  $ARGV[0] =~ m{ \/ .*? ([^\/]+) $ }x
    ? do { my @p = split (/\-/, $1); pop @p; join "::", @p }
    : $ARGV[0]
) ) or ( print $@ and exit 1)' "$m" 2> /dev/null ; then

        echo_err -e "$m installation failed\n$LASTOUT"
        exit 1
      fi
    done
  fi

  # DBI has by far the longest test runtime - run less tests
  # FIXME horrible horrible hack, need to implement in DBI itself
  run_or_err "Downloading latest DBI distdir from CPAN" \
    "SHELL=/bin/true cpanm --look DBI"
  cd ~/.cpanm/latest-build/DBI-*/
  perl -p -i -e 's/(create_.+?_tests) => 1/$1 => 0/' Makefile.PL
  run_or_err "Pre-installing DBI, but running less tests" "perl Makefile.PL && make && make test && make install"
  cd - &>/dev/null

else
  # we will be running all dbic tests - preinstall lots of stuff, run basic tests
  # using SQLT and set up whatever databases necessary
  export DBICTEST_SQLT_DEPLOY=1

  # do the preinstall in several passes to minimize amount of cross-deps installing
  # multiple times, and to avoid module re-architecture breaking another install
  # (e.g. once Carp is upgraded there's no more Carp::Heavy,
  # while a File::Path upgrade may cause a parallel EUMM run to fail)
  #
  parallel_installdeps_notest ExtUtils::MakeMaker
  parallel_installdeps_notest File::Path
  parallel_installdeps_notest Carp
  parallel_installdeps_notest Module::Build Module::Runtime
  parallel_installdeps_notest File::Spec Data::Dumper
  parallel_installdeps_notest Test::Exception Encode::Locale Test::Fatal R/RS/RSAVAGE/Tree-DAG_Node-1.13.tgz
  parallel_installdeps_notest Test::Warn B::Hooks::EndOfScope Test::Differences HTTP::Status
  parallel_installdeps_notest Test::Pod::Coverage Test::EOL Devel::GlobalDestruction Sub::Name MRO::Compat Class::XSAccessor URI::Escape HTML::Entities
  parallel_installdeps_notest YAML LWP Class::Trigger JSON::XS DBI DateTime::Format::Builder Class::Accessor::Grouped Package::Variant
  parallel_installdeps_notest Moose Module::Install JSON SQL::Translator File::Which

  if [[ -n "DBICTEST_FIREBIRD_DSN" ]] ; then
    # the official version is very much outdated and does not compile on 5.14+
    # use this rather updated source tree (needs to go to PAUSE):
    # https://github.com/pilcrow/perl-dbd-interbase
    run_or_err "Fetching patched DBD::InterBase" \
      "git clone https://github.com/dbsrgits/perl-dbd-interbase ~/dbd-interbase"

    parallel_installdeps_notest ~/dbd-interbase/
  fi

fi

# generate the makefile which will have different deps depending on
# the runmode and envvars set above
run_or_err "Configure on current branch" "perl Makefile.PL"

# install (remaining) dependencies, sometimes with a gentle push
if [[ "$CLEANTEST" = "true" ]]; then
  # we may need to prepend some stuff to that list
  HARD_DEPS="$(echo $(make listdeps))"

##### TEMPORARY WORKAROUNDS
  if ! CPAN_is_sane ; then
    # combat dzillirium on harness-wide level, otherwise breakage happens weekly
    echo_err "$(tstamp) Ancient CPAN.pm: engaging TAP::Harness::IgnoreNonessentialDzilAutogeneratedTests during dep install"
    perl -MTAP::Harness=3.18 -e1 &>/dev/null || run_or_err "Upgrading TAP::Harness for HARNESS_SUBCLASS support" "cpan TAP::Harness"
    export PERL5LIB="$(pwd)/maint/travis-ci_scripts/lib:$PERL5LIB"
    export HARNESS_SUBCLASS="TAP::Harness::IgnoreNonessentialDzilAutogeneratedTests"
    # sanity check, T::H does not report sensible errors when the subclass fails to load
    perl -MTAP::Harness::IgnoreNonessentialDzilAutogeneratedTests -e1

    # FIXME
    # parent is temporary due to Carp https://rt.cpan.org/Ticket/Display.html?id=88494
    HARD_DEPS="parent $HARD_DEPS"

    if CPAN_supports_BUILDPL ; then
      # We will invoke a posibly MBT based BUILD-file, but we do not support
      # configure requires. So we not only need to install MBT but its prereqs
      # FIXME This is madness
      HARD_DEPS="$(extract_prereqs Module::Build::Tiny) Module::Build::Tiny $HARD_DEPS"
    else
      # FIXME
      # work around Params::Validate not having a Makefile.PL so really old
      # toolchains can not figure out what the prereqs are ;(
      # Need to do more research before filing a bug requesting Makefile inclusion
      HARD_DEPS="$(extract_prereqs Params::Validate) $HARD_DEPS"
    fi
  fi
##### END TEMPORARY WORKAROUNDS

  run_or_err "Installing/testing dependencies (may take up to 5 minutes): $HARD_DEPS" "cpan $HARD_DEPS"

  # save the log as we may need it
  INSTALLDEPS_OUT="$LASTOUT"

### FIXME in case we set it earlier in a workaround
  if [[ -n "$HARNESS_SUBCLASS" ]] ; then

    INSTALLDEPS_SKIPPED_TESTLIST=$(perl -0777 -e '
my $in = <>;
my $re = qr(
  ^ (?: \QBuilding and testing\E | \s* CPAN\.pm: .+? (?i:build)\S* ) \s+ (\S+)
  .*?
  ^ === \s \QSkipping nonessential autogenerated tests: \E([^\n]+)
)msx;
while ( $in =~ /$re/g ) {
  print "!!! Skipped nonessential tests while installing $1: $2\n"
}
' <<< "$LASTOUT")

    unset HARNESS_SUBCLASS
  fi

else
  if [[ -n "$TEST_BUILDER_BETA_CPAN_TARBALL" ]] ; then
    parallel_installdeps_notest $TEST_BUILDER_BETA_CPAN_TARBALL
  fi

  # listalldeps is deliberate - will upgrade everything it can find
  parallel_installdeps_notest $(make listalldeps)
fi

echo_err "$(tstamp) Dependency installation finished"
# this will display list of available versions
perl Makefile.PL

# make sure we got everything we need
if [[ -n "$(make listdeps)" ]] ; then
  echo_err "$(tstamp) Not all deps installed - something went wrong :("
  sleep 1 # without this the echo below confuses the console listener >.<
  CPAN_is_sane || echo_err -e "Outdated CPAN.pm used - full logs follows\n$INSTALLDEPS_OUT\n\nSearch for 'NOT OK' in the text above\n\nDeps still missing:"
  sleep 3 # without this the above echo confuses the console listener >.<
  make listdeps
  exit 1
fi

# announce what are we running
echo_err "
===================== DEPENDENCY CONFIGURATION COMPLETE =====================
$(tstamp) Configuration phase seems to have taken $(date -ud "@$SECONDS" '+%H:%M:%S') (@$SECONDS)

= CPUinfo
$(perl -0777 -p -e 's/.+\n\n(?!\z)//s' < /proc/cpuinfo)

= Meminfo
$(free -m -t)

= Environment
$(env | grep -P 'TEST|TRAVIS|PERL|DBIC' | LC_ALL=C sort | cat -v)

= Perl in use
$(perl -V)
============================================================================="