#!/usr/bin/perl -w
# -*- perl -*-
use P4CGI ;
use strict ;
use CGI::Carp ;
#
#################################################################
#  CONFIGURATION INFORMATION 
#  All config info should be in P4CGI.pm
#
#################################################################
#
#  P4 file log viewer
#
#################################################################
 
## Check if we have GD (required for branchGraph.cgi).
my $GD_AVAILABLE=undef ;
{
    my $tmpDie = $SIG{'__DIE__'} ;
    $SIG{'__DIE__'} = "" ;
    eval ' use GD ; ' ;
    if(length($@) == 0) {
	$GD_AVAILABLE= "Y" ;
    }
    $SIG{'__DIE__'} = $tmpDie ;
}
 
sub offsetOf($@ ) {
    my $v = shift @_ ;
    my $pos = 0 ;
    while(@_ > 0) {
	if($v eq (shift @_)) {
	    return $pos ;
	}
	$pos++ ;
    }
    return -1 ;
}
 
my $err2null = &P4CGI::REDIRECT_ERROR_TO_NULL_DEVICE() ;
my $err2stdout =  &P4CGI::REDIRECT_ERROR_TO_STDOUT() ;
 
				# File argument
my $file = P4CGI::cgi()->param("FSPC") ;
&P4CGI::bail("No file spec") unless defined $file ;
$file = &P4CGI::htmlEncode($file) ;
 
my $showBranching = P4CGI::cgi()->param("SHOWBRANCH") ;
 
 
				# Get file data
my @filelogdata ;
my %relatedFiles ;
local *F ;
&P4CGI::p4call(*F,"filelog -l -t \"$file\"") ;
my $curr ;
while(<F>) {
    chomp ;
    next if /^\s*$/ ;
    /^\.\.\. \#(\d+) change (\d+) (\S+) on (\S+ \S+) by (\S+)\@(\S+) \((\S+)\)/ and do {
	my %data ;
	my $rev ;
	($rev,
	 $data{"change"},
	 $data{"action"},
	 $data{"date"},
	 $data{"user"},
	 $data{"client"},
	 $data{"type"}) =($1,$2,$3,$4,$5,$6,$7);	
	$data{"date"} =~ s/ /&nbsp;/ ;	
	$data{"description"} = "" ;
	$data{"labels"} = [] ;
	$data{"open"} = [] ;
	$curr = \%data ;
	unshift @filelogdata,$curr ;
	next ;
    } ;	
    /^\t(.+)/ and do {
	${$curr}{"description"} .= $1 . "\n" ;
	next ;
    } ;
    /^\.\.\. \.\.\. (\S+) (\S+) (.+)$/ and do {
	my ($act,$dir,$filespec) = ($1,$2,$3) ;
	$filespec =~ /([^\#]+)(\#\d+.*)/ and do {
	    my ($file,$r) = ($1,$2) ;
	    $filespec = &P4CGI::ahref(-url=>"fileLogView.cgi",
				      "FSPC=$file", 
				      "HELP=View file log",
				      "$file$r") ;	    
	    $relatedFiles{$file} = 1 ;
	} ;
	if(!exists ${$curr}{$dir}) {
	    my @arr ;
	    ${$curr}{$dir} = \@arr ;
	}
	push @{${$curr}{$dir}},"$act $filespec" ;
    } ;
}
close *F ;
 
 
if (@filelogdata == 0) {
    my @legendList ;
    my $filename = $file ;
    $filename =~ s/^.*\/// ;
    my $searchPattern = "//.../$filename" ;
    push @legendList, 
    &P4CGI::buttonCell("fileSearch.cgi",
		       "Search depot for $filename",
		       "FSPC=$searchPattern",
		       "Search depot for file") ;
    print 
	&P4CGI::start_page("No information available about <tt>$file</tt>",@legendList) ,
	&P4CGI::end_page() ;
    exit 0 ;
} ;
 
my @opendata ;
				# Get info about opened status
&P4CGI::p4call(\@opendata,"opened -a \"$file\" $err2null") ;
my $openedText = "" ;
while(@opendata) {
    $_ = shift @opendata ;
    $openedText = "Opened by" ;
    /^.*\#(\d+) - .* by (\S+)\@(\S+)/ or 
	&P4CGI::bail("Can not read info from \"p4 opened\"") ;
    my ($rev,$user,$client) = ($1,$2,$3) ;
    $user =  &P4CGI::ahref(-url => "userView.cgi",
			   "USER=$user",
			   "HELP=View user info",
			   "$user") ;
    $client =  &P4CGI::ahref(-url => "clientView.cgi",
			     "CLIENT=$client",
			     "HELP=View client info",
			     "$client") ; 
    push @{${$filelogdata[$rev-1]}{"open"}},"$user\@${client}" ;    
} ;
 
##
## Get Label cross reference
##
 
my %fileToLabels ;    # Hash containing labels by file name and version
 
{
    my @labels ;			# Labels containing file
    &P4CGI::p4call(\@labels,"labels $file") ;
    map { s/^Label (\S+) .*/$1/ ; } @labels ;   
    
    
    if(@labels > 0) {
	my $filelabels = "" ;
	foreach (@labels) {
	    $filelabels .= " \"$file\@$_\"" ;
	}
	my @filesInLabels ;
	&P4CGI::p4call(\@filesInLabels,"files $filelabels $err2null") ;
	foreach (@filesInLabels) {	
	    my $labt = shift @labels ;
	    my $lab = &P4CGI::ahref(-url => "labelView.cgi",
				    "LABEL=$labt",
				    "HELP=View label",
				    "$labt") ;
	    /^.*\#(\d+)/ and do {
		my $v = $1 ;
		push @{${$filelogdata[$v-1]}{"labels"}},"$lab" ;
	    } ;
	    /^(\S+)/ ;
	    if(defined $fileToLabels{$1}) {
		$fileToLabels{$1} .= "<br>$lab" ; 
	    } 
	    else {
		$fileToLabels{$1} = "$lab" ; 
	    }
	}
    } ;
} ; 
 
###
### Get jobs fixed by changes to file
###
 
my %jobDataByChangeNo ;
 
{
    my @fixes ;
    &P4CGI::p4call(\@fixes,"fixes -i \"$file\"") ;
    foreach (@fixes) {
	/^(.*) fixed by change (\d+)/ and 
	    do {
		my ($job,$change)=($1,$2) ;
		my %jobData ;
		&P4CGI::p4readform("job -o \"$job\"",\%jobData) ;
		$jobData{"Job"} = 
		    &P4CGI::ahref(-url=>"jobView.cgi",
				  "JOB=$jobData{Job}",
				  "HELP=View job",
				  "$jobData{Job}") ;
		$jobData{"Description"} = 
		    &P4CGI::formatDescription($jobData{"Description"}) ;
		$jobDataByChangeNo{$change} = \%jobData ;
	    } ;
    } ;
} ;
 
 
my @legendList ; 
push @legendList,
    &P4CGI::buttonCell("changeList.cgi",
		       "List all changes for this file",
		       "FSPC=$file",
		       "Changes") ;
my @parsListLab ;
my $p ;
foreach $p (&P4CGI::cgi()->param()) {
    push @parsListLab, "$p=" . &P4CGI::cgi()->param($p) unless $p eq "LISTLAB" ;
}
 
 
if(defined $showBranching) {
    &P4CGI::cgi()->delete("SHOWBRANCH") ;
    push @legendList, &P4CGI::buttonCell(&P4CGI::cgi()->url(-query=>1),
					 "Hide all notes about branching in file log",
					 "Hide branch info") ;
}
else {
    &P4CGI::cgi()->param("SHOWBRANCH","Y") ;
    push @legendList, &P4CGI::buttonCell(&P4CGI::cgi()->url(-query=>1),
					 "Display notes about branching in file log",
					 "Show branch info") ;
} ;
 
my %vars ;
{
    my $par ;
    foreach $par (&P4CGI::cgi()->param()) {
	$vars{$par} = &P4CGI::cgi()->param($par);
    } ;
} ;
 
if($GD_AVAILABLE) {
    push @legendList, 
    &P4CGI::buttonCell("branchGraph.cgi",
		       "Show graph over branches and merges to/from this file",
		       "FSPC=$file",
		       "View Branch Graph") ;
}
 
				# Get file directory part
my $fileDir=$file ;
$fileDir =~ s#/[^/]+$## ;
push @legendList, "<td>&nbsp;&nbsp;</td>" ;
push @legendList,
    &P4CGI::buttonCell("depotTreeBrowser.cgi",
		       "Browse depot tree at $fileDir",
		       "FSPC=$fileDir",
		       "Browse dir.") ;
 
print &P4CGI::start_page("File&nbsp;log&nbsp;for <tt>$file</tt>",@legendList) ;
 
my $labelHead ="";
$labelHead="In label(s)" ;
 
 
print  &P4CGI::start_framedTable("Log") ;
 
print &P4CGI::start_table("class=\"ListX\"") ;
print &P4CGI::table_header("Rev",
			   "Action",
			   "Date and time",
			   "User",
			   "Change",
			   "Type",
			   $labelHead,
			   $openedText) ;
my @revs ;
while(@filelogdata) {
    my $rev = scalar @filelogdata ;
    push @revs,$rev ;
    my $tmpr = pop @filelogdata ;
    my %data = %{$tmpr} ;
    my $revLink ;
    my $actionLink ;
    if(defined $showBranching and exists $data{"into"}) {
	foreach (@{$data{"into"}}) {
	    /^(\w+) (.*)/ ;
	    my ($act,$file) = ($1,$2) ;
	    print &P4CGI::table_row(-valign => "top",
#				    -class=>"Delimiter",
				    "",
				    undef,
				    undef,
				    undef,
				    undef,
				    undef,
				    undef,
				    undef,
				    {-class=>"kalle",
				     -text=>"$act into $file"}) ;
	} ;
    } ;
    if( $data{"action"} eq "delete") {
	$revLink = {-rowspan=>"2",
		    -class=>"ListHeadColumn",
		    -text=>"\#$rev"} ;
	$actionLink = {-class=>"ListC",
		       -text=>$data{"action"}} ;
    }
    else {
	$revLink = {-rowspan=>"2",
		    -class=>"ListHeadColumn",
		    -text=>
			&P4CGI::ahref(-url=>"fileViewer.cgi",
				      "FSPC=$file",
				      "REV=$rev",
				      "HELP=View file",
				      "\#$rev")} ;
	$actionLink = {-class=>"ListC",
		       -text=>&P4CGI::ahref(-url=>"fileDiffView.cgi",
					    "FSPC=$file",
					    "REV=$rev",
					    "ACT=$data{action}",
					    "HELP=View diff",
					    $data{"action"})} ;
    } ;
    
    
    print &P4CGI::table_row(-valign => "top",
			    -class => "\"Top\"",
			    $revLink,
			    $actionLink,
			    {-class=>"List",
			     -text =>$data{"date"}},
			    {-class=>"List",
			     -text =>&P4CGI::ahref(-url=>"userView.cgi",
						   "USER=$data{user}",
						   "HELP=View user info",
						   $data{"user"})},
			    {-class=>"List",
			     -text =>&P4CGI::ahref(-url=>"changeView.cgi",
						   "CH=$data{change}",
						   "HELP=View change",
						   $data{"change"})},
			    {-class=>"ListC",
			     -text =>"$data{type}"},
			    {-class=>"List",
			     -text =>join("<br>",@{$data{"labels"}})},
			    join("<br>",@{$data{"open"}})) ;
    
    my %desc = ( -text => &P4CGI::formatDescription($data{"description"}),
		 -class=> "Description" ) ;
    print &P4CGI::table_row(-valign => "top",
			    undef,
			    undef,
			    undef,
			    undef,
			    undef,
			    undef,
			    undef,
			    \%desc) ;
    if(exists $data{"from"}) {
	foreach (@{$data{"from"}}) {
	    /^(\w+) (.*)/ ;
	    my ($act,$file) = ($1,$2) ;
	    print &P4CGI::table_row(-valign => "top",
#				    -class=>"Delimiter",
				    "",
				    undef,
				    undef,
				    undef,
				    undef,
				    undef,
				    undef,
				    undef,
				    {-class=>"kalle",
				     -text=>"$act from $file"}) ;
	} ;
    } ;
 
    if(exists $jobDataByChangeNo{$data{"change"}}) {
	my %jobData = %{$jobDataByChangeNo{$data{"change"}}} ;
	print &P4CGI::table_row(-valign => "top",
				"",
				"Fixes job:<br>$jobData{Job}",
				undef,
				undef,
				undef,
				undef,
				undef,
				undef,
				{-class=>"Description",
				 -text =>$jobData{"Description"}}) ;
	
    } ;
} ;
 
print &P4CGI::end_table("") ;
 
 
if(@revs > 2) {
    print
	"<br>",
	&P4CGI::cgi()->startform("-action","fileDiffView.cgi",
				 "-method","GET"),
	&P4CGI::cgi()->hidden("-name","FSPC",
			      "-value",&P4CGI::urlEncode("$file")),    
	&P4CGI::cgi()->hidden("-name","DP",
			      "-value",&P4CGI::CURR_DEPOT_NO()),    
	&P4CGI::cgi()->hidden("-name","ACT",
			      "-value","edit"),    
	&P4CGI::start_framedTable("Show diff between revisions"),
	&P4CGI::cgi()->popup_menu(-name   =>"REV",
				  "-values" =>\@revs);
    shift @revs ;
    print
	" and ",
	&P4CGI::cgi()->popup_menu(-name   =>"REV2",
				  "-values" =>\@revs),
	"   ",
	&P4CGI::cgi()->submit(-name  =>"Go",
			      -value =>"Go"),
	&P4CGI::end_framedTable(),
	&P4CGI::cgi()->endform() ;
} ;
 
 
sub getRelatedFiles($ )
{
    my $file = shift @_ ;
    my @data ;
    &P4CGI::p4call(\@data,"filelog \"$file\"") ;
    my %res ;
    map  {  if(/^\.\.\. \.\.\. \w+ \w+ (\S+?)\#/) { $res{$1} = 1 ; } ; } @data  ;
    return ( sort keys %res ) ;
} ;
 
if((keys %relatedFiles) > 0) {
    my @rel = sort keys %relatedFiles ;
    my @fileLinks = map {  &P4CGI::ahref("-url","fileLogView.cgi",
					 "FSPC=$_", 
					 "HELP=View file log",
					 "$_") ; } @rel ;
    my %indrel ;
    $relatedFiles{$file} = 1 ;    
    while(@rel > 0) {
	my $r ;
	foreach $r (map { exists $relatedFiles{$_} ? () : $_ } getRelatedFiles(shift @rel)) {
	    &P4CGI::ERRLOG("found: $r") ;
	    $indrel{$r} = 1;
	    push @rel, $r ;
	    $relatedFiles{$r} = 1 ;
	}
    }
 
    my @indFileLinks = map {  &P4CGI::ahref("-url","fileLogView.cgi",
					    "FSPC=$_", 
					    "HELP=View file log",
					    "$_") ; } sort keys %indrel ;
    
    print
	"<br>",
	&P4CGI::start_framedTable("Related files"),
	&P4CGI::start_table(""),
	&P4CGI::table_row({-class => "Prompt",
			   -text => "Direct related:" },
			  { -text => join("<br>",@fileLinks) }) ;
    if(@indFileLinks > 0) {
	print "", &P4CGI::table_row({ -class => "Prompt",
				      -text => "Indirect related:" },
				    { -text => join("<br>",@indFileLinks) }) ;
    } ;
    print 
	&P4CGI::end_table(),
	&P4CGI::end_framedTable() ;
} ;					
 
 
 
print
    &P4CGI::end_framedTable(),
    &P4CGI::end_page() ;
 
#
# That's all folks
#