#!/usr/bin/perl -w

#

# usage: cicq2mcabber.pl cicqhistoryfile > mcabberhistoryfile

# Convert a centericq history file to mcabber format

#

# See histolog.c for the mcabber format.

#

# MiKael, 2005/05/05

use strict;

my $line;

my $inblock = 0;

my %bdata = ();

sub print_entry()

{

  my ($type, $info, $date, $len, $data);

  return  unless(defined $bdata{"msg"});

  if ($bdata{"type"} eq "MSG") {

    $type = "M";

    if ($bdata{"inout"} eq "OUT") {

      $info = "S";

    } elsif ($bdata{"inout"} eq "IN") {

      $info = "R";

    } else {

      print STDERR "Neither IN nor OUT!?\n";

      return;

    }

  } else {

    print STDERR "Data type not handled.\n";

    return;

  }

  $date = $bdata{"timestamp"};

  $len  = $bdata{"nb"};

  $data = $bdata{"msg"};

  # Date conversion to iso8601

  my ($ss,$mm,$hh,$DD,$MM,$YYYY) = gmtime($date);

  $date = sprintf "%04d%02d%02dT%02d:%02d:%02dZ",

                  $YYYY+1900, $MM+1,$DD,$hh,$mm,$ss;

  printf("%s%s %18.18s %03d %s", $type, $info, $date, $len, $data);

}

while ($line = <>) {

  chomp $line;

  # The separator is ^L ; I use substr to exclude the EOL

  if ($line eq "") {

    print_entry() if ($inblock);

    # reset data for new block

    %bdata = ();

    $inblock = 1;

    next;

  }

  # Skip garbage or unrecognized stuff...

  if (!$inblock) {

    print STDERR "Skipping line\n";

    next;

  }

  # 1 IN/OUT line

  unless (exists $bdata{"inout"}) {

    if (($line eq "IN") || ($line eq "OUT")) {

      $bdata{"inout"} = $line;

    } else {

      print STDERR "No IN/OUT information ($line)!\n";

      $inblock = 0;

    }

    next;

  }

  # 1 type line (MSG...)

  unless (exists $bdata{"type"}) {

    # We don't handle NOTE and AUTH yet.

    if ($line eq "MSG") {

      $bdata{"type"} = $line;

    } else {

      print STDERR "Not a MSG type ($line)\n";

      $inblock = 0;

    }

    next;

  }

  # 2 date lines

  unless (exists $bdata{"timestamp"}) {

    $bdata{"timestamp"} = $line;

    last unless defined ($line = <>);

    chomp $line;

    $bdata{"timestamp2"} = $line;

    if (! $bdata{"timestamp2"} eq $bdata{"timestamp2"}) {

      print STDERR "Timestamps differ...\n";

    }

    next;

  }

  # ... The message itself

  $line =~ s/

$//;

  if (exists $bdata{"msg"}) {

    $bdata{"msg"} .= $line."\n";

    $bdata{"nb"}++;

  } else {

    $bdata{"msg"} = $line."\n";

    $bdata{"nb"} = 0;

  }

}

print_entry() if ($inblock);