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#!/usr/bin/perl

#
# Reads in a zip file full of .igc files
# should be named as such: FAINO.igc or LASTNAME_FIRSTNAME.igc
#
# Geoff Wong 2007
#

require DBD::mysql;
use Data::Dumper;

use TrackLib qw(:all);

local * DIR;

#
# Extract files and read them all into the database 
#
sub extract_igcs
{
    my ($f) = @_;

    my @fields;
    my @names;
    my %tracks;
    my $row;
    my $tmpdir = '/tmp/igcimport/';
    my $pilPk;
    my $sth;

    # clean up and extract files ..
    system("/usr/bin/rm -rf $tmpdir");
    mkdir($tmpdir, 0755);
    system("/usr/bin/unzip $f -d $tmpdir");

    opendir(DIR, $tmpdir) or die "can't opendir $f: $!";

    while (defined($file = readdir(DIR))) 
    {
        # find the pilot ..
        #print "got: $file\n";
        if ($file eq "." or $file eq "..")
        {
            next;
        }

        @fields = split /\./, $file;

        # check size = 2
        @names = split /_/, $fields[0];

        if (scalar @names < 1)
        {
            my $pilPk;

            $pilPk = $fields[0] + 0;
            
            #print "found: $pilPk\n";
            $sth = $dbh->prepare("select pilPk from tblPilot where pilHGFA=$pilPk" );
        }
        else
        {
            #print "two found: ", $names[0], " ", $names[1], "\n";
            $pilPk = $fields[0] + 0;

            if ($pilPk != 0)
            {
                $sth = $dbh->prepare("select pilPk from tblPilot where pilHGFA=$pilPk" );
            }
            else
            {
                $sth = $dbh->prepare("select pilPk from tblPilot where pilLastName='$names[1]' and pilFirstName='$names[0]'");
            }
        }
        $sth->execute();

        # add the pilot if they're not found?
        $pilPk  = $sth->fetchrow_array() + 0;

        if ($pilPk == 0)
        {
            print "Can't find pilot $file in database\n";
        }
        else
        {
            print "Found: $file with pilPk=$pilPk\n";
            $tracks{$pilPk} = $tmpdir . $file;
        }
    }

    closedir(DIR);

    return \%tracks;
}

sub read_all_tracks
{
    my ($comPk,$tasPk,$tracks) = @_;
    my $file;
    my $traPk;
    my @fields;
    my $out;
    my $outo;
    my $gliPk;
    my $sth;

    #print Dumper($tracks);
    for my $pilPk ( keys %$tracks )
    {
        $file = $tracks->{$pilPk};
        #print "igcreader.pl $pilPk $file\n";
        print "Track read ($file) for pilot=$pilPk\n";
        $out = `igcreader.pl "$file" $pilPk`;
        $outo = `optimise_flight.pl $traPk`;
        @fields = split /traPk=/, $out;
        if (scalar @fields < 1)
        {
            print "Track read ($pilPk:$file) may have failed\n";
            next;
        }
        $traPk=$fields[1] + 0;

        # Link track to task/comp.
        if ($traPk != 0)
        {
            $sth = $dbh->prepare("select max(traPk) from tblTrack where pilPk=$pilPk and traGlider <> 'unknown' and traGlider <> ''");
            $sth->execute();
            $gliPk = $sth->fetchrow_array() + 0;
            if ($gliPk > 0)
            {
                $dbh->do("update tblTrack T, tblTrack P set T.traGlider=P.traGlider and T.traDHV=P.traGlider where T.traPk=$traPk and P.traPk=$gliPk");
            }    
            $dbh->do("insert into tblComTaskTrack (comPk,tasPk,traPk) values (?,?,?)", undef, $comPk, $tasPk, $traPk);

            # Verify against the task 
            print "track_verify_sr.pl $traPk\n";
            system("track_verify_sr.pl $traPk");
        }
        else
        {
            print "Track read ($pilPk:$file) may have failed: $out\n";
        }
    }
}

#
# Main program here ..
#

my $tracks;
my $tasPk;
my $comPk;
my $sth;

if (scalar @ARGV < 2)
{
    print "bulk_igc_read.pl tasPk zipfile\n";
    exit 0;
}

$dbh = db_connect();

# Check the task stuff
$tasPk = $ARGV[0] + 0;

$sth = $dbh->prepare("select comPk from tblTask where tasPk=$tasPk");
$sth->execute();
$comPk  = $sth->fetchrow_array() + 0;

if ($comPk == 0)
{
    print "Can't find task $tasPk\n";
    exit 1;
}

# Find all the tracks
$tracks = extract_igcs($ARGV[1]);

# Read each of the tracks 
read_all_tracks($comPk,$tasPk,$tracks);

# Score the round ..
#system("task_score.pl $tasPk");