#!/usr/bin/perl -wT
# "Old" version of "Today Worktime" page for mass-filling worktime information (CustIS Bug 12253)
# Author(s): Stas Fomin, Vitaliy Filippov
# License: Dual-license GPL 3.0+ or MPL 1.1+

use strict;
use lib qw(. lib);
use POSIX qw(floor);

use Bugzilla;
use Bugzilla::Token;
use Bugzilla::Error;
use Bugzilla::Bug;
use Bugzilla::Util;
use Bugzilla::Product;
use Bugzilla::Search;
use Bugzilla::Search::Saved;
use Bugzilla::Constants;
use Bugzilla::CheckerUtils;
use Bugzilla::FixWorktimePage;

my $user     = Bugzilla->login(LOGIN_REQUIRED);
my $userid   = $user->id;

my $template = Bugzilla->template;
my $dbh      = Bugzilla->dbh;
my $vars     = {};
my $ARGS     = Bugzilla->input_params;

my ($lastdays) = $ARGS->{lastdays} =~ /^(\d+)$/;
$vars->{lastdays} = $lastdays ||= '1';

sub add_wt
{
    # Merge $t time and $c comment for bug $id into $wtime hashref
    my ($wtime, $id, $t, $c) = @_;
    push @{$wtime->{IDS}}, $id unless $wtime->{$id};
    $t =~ tr/,/./;
    $t = floor(100*$t+0.5)/100;
    $wtime->{$id}->{time} += $t;
    push @{$wtime->{$id}->{comments} ||= []}, $c if $c;
}

# Read buglist from query params
my @idlist;
foreach (keys %$ARGS)
{
    if (/^wtime_(\d+)/)
    {
        my $id = $1;
        push @idlist, $id if $ARGS->{$_} || $ARGS->{"comm_$id"} ||
            $ARGS->{"oldrtime_$id"} ne $ARGS->{"newrtime_$id"};
    }
}

my @lines = split("\n", $ARGS->{worktime});
if (@idlist || @lines)
{
    check_token_data($ARGS->{token}, 'fill-day-worktime');
    my $wtime = { IDS => [] };
    foreach my $id (@idlist)
    {
        add_wt($wtime, $id, $ARGS->{"wtime_$id"}, $ARGS->{"comm_$id"});
    }
    foreach my $line (@lines)
    {
        # New, intuitive format: BUG_ID <space> TIME <space> COMMENT
        if ($line =~ /^\D*(\d+)\s+(?:(-?\d[\d\.\,]*)|(\d+):(\d{2}))(?:\s+(.*))?$/iso)
        {
            my ($id, $time, $comment) = ($1, $3 ? $3+$4/60 : $2, $5);
            add_wt($wtime, $id, $time, $comment);
        }
        # TODO REMOVE IT NAHREN :)
        # This is some VERY OLD format: dd.mm.yyyy hh:mm - hh:mm <word> - BUG nnn
        # hh:mm - hh:mm is start time - end time, <word> is matched but ignored
        elsif ($line =~ /\s*(\d?\d.\d\d.[1-9]?\d?\d\d\s)?\s*((\d?\d):(\d\d)\s*-\s*(\d?\d):(\d\d)\s+)?([\w\/]+)\s*(-\s*(BUG|\()?\s*([1-9]\d*)(.*))/iso)
        {
            my $time = (($5 * 60 + $6) - ($3 * 60 + $4)) / 60;
            $time = 0 if $time < 0;
            my $id = $10;
            my $comment = $line;
            if (!$id)
            {
                ThrowUserError('object_not_specified', { class => 'Bugzilla::Bug' });
            }
            add_wt($wtime, $id, $time, $comment);
        }
    }
    Bugzilla->request_cache->{checkers_hide_error} = 1;
    my $rollback = 0;
    $dbh->bz_start_transaction();
    foreach my $id (@{$wtime->{IDS}})
    {
        $dbh->bz_start_transaction();
        if (!Bugzilla::FixWorktimePage::FixWorktime($id, $wtime->{$id}->{time}, join("\n", @{$wtime->{$id}->{comments} || []})))
        {
            $rollback = 1;
        }
        else
        {
            $dbh->bz_commit_transaction();
        }
    }
    if ($rollback)
    {
        # Rollback all changes if some are blocked by Checkers
        # Note that there is no support for "non-fatal" checks,
        # and the warning with "do what i say..." text is not shown
        Bugzilla->dbh->bz_rollback_transaction();
    }
    else
    {
        Bugzilla->dbh->bz_commit_transaction();
    }
    Bugzilla::CheckerUtils::show_checker_errors();
    delete_token($ARGS->{token});
    print Bugzilla->cgi->redirect(-location => "fill-day-worktime.cgi?lastdays=" . $lastdays);
    exit;
}

my $query = Bugzilla::Search::Saved->new({ name => 'MyWorktimeBugs' });

my $sqlquery = "";
if ($query)
{
    my $search = new Bugzilla::Search(
        params => http_decode_query($query->query),
        fields => [ "bugs.bug_id" ],
    );
    $sqlquery = $search->bugid_query;
}

$sqlquery = " UNION $sqlquery" if $sqlquery;

my $tm = $dbh->sql_date_math('CURRENT_DATE', '-', $lastdays-1, 'DAY');
my $join = $dbh->isa('Bugzilla::DB::Mysql') ? 'STRAIGHT_JOIN' : 'JOIN';
my $bugsquery = "
 SELECT b.*, p.name product, c.name component, p.notimetracking product_notimetracking,
  ROUND(b.remaining_time,1) remaining_time,
  ROUND(SUM(l.work_time),2) all_work_time,
  ROUND(SUM(
   CASE WHEN l.bug_when >= $tm AND l.who=$userid
   THEN l.work_time
   ELSE 0 END
  ),2) today_work_time
 FROM (
  SELECT bugs.bug_id FROM longdescs ll, bugs
  WHERE ll.bug_when >= $tm AND ll.who=? AND ll.bug_id=bugs.bug_id
  UNION
  SELECT bugs.bug_id FROM bugs_activity aa, bugs
  WHERE aa.bug_when >= $tm AND aa.who=? AND aa.bug_id=bugs.bug_id
  $sqlquery
 ) t $join bugs b ON t.bug_id=b.bug_id
 LEFT JOIN longdescs l ON l.bug_id=b.bug_id
 INNER JOIN products p ON p.id=b.product_id
 INNER JOIN components c ON c.id=b.component_id
 GROUP BY b.bug_id, b.priority, b.short_desc, p.name, c.name, b.remaining_time
 ORDER BY today_work_time DESC, priority ASC
 ";

$vars->{token} = issue_session_token('fill-day-worktime');

$vars->{bugs} = $dbh->selectall_arrayref($bugsquery, {Slice=>{}}, $userid, $userid) || [];

($vars->{timestamp}) = $dbh->selectrow_array("SELECT NOW()");
($vars->{totaltime}) = $dbh->selectrow_array("SELECT ROUND(SUM(work_time),2) FROM longdescs WHERE bug_when >= ".$dbh->sql_date_math('CURRENT_DATE', '-', '?', 'DAY')." AND who=?", undef, $lastdays-1, $userid);
($vars->{prevdate1}) = $dbh->selectrow_array("SELECT DATE(MAX(bug_when)) FROM longdescs WHERE bug_when < CURRENT_DATE AND who=?", undef, $userid);

$vars->{totaltime} ||= 0;

$template->process('worktime/todaybugs.html.tmpl', $vars)
    || ThrowTemplateError($template->error());

exit;