#!/usr/bin/perl -w
# NAME: qt42qt5.pl
# AIM: VERY SPCIFIC - Convert Qt4 encloding to Qt5 encoding... mayeb a one off..
# 20/06/2016 - Initial try
use strict;
use warnings;
use File::Basename;  # split path ($name,$dir,$ext) = fileparse($file [, qr/\.[^.]*/] )
use Cwd;
my $os = $^O;
my $perl_dir = '/home/geoff/bin';
my $PATH_SEP = '/';
my $temp_dir = '/tmp';
if ($os =~ /win/i) {
    $perl_dir = 'C:\GTools\perl';
    $temp_dir = $perl_dir;
    $PATH_SEP = "\\";
}
unshift(@INC, $perl_dir);
require 'lib_utils.pl' or die "Unable to load 'lib_utils.pl' Check paths in \@INC...\n";
# log file stuff
our ($LF);
my $pgmname = $0;
if ($pgmname =~ /(\\|\/)/) {
    my @tmpsp = split(/(\\|\/)/,$pgmname);
    $pgmname = $tmpsp[-1];
}
my $outfile = $temp_dir.$PATH_SEP."temp.$pgmname.txt";
open_log($outfile);

# user variables
my $VERS = "0.0.6 2016-06-20";
## my $VERS = "0.0.5 2015-01-09";
my $load_log = 0;
my $in_file = '';
my $verbosity = 0;
my $out_file = $temp_dir.$PATH_SEP."tempqt5.cpp";'';

# ### DEBUG ###
my $debug_on = 1;
my $def_file = 'F:\Projects\polyView2D\build\context.txt';
###my $def_file = 'F:\Projects\polyView2D\build\menu.txt';

### program variables
my @warnings = ();
my $cwd = cwd();

sub VERB1() { return $verbosity >= 1; }
sub VERB2() { return $verbosity >= 2; }
sub VERB5() { return $verbosity >= 5; }
sub VERB9() { return $verbosity >= 9; }

sub show_warnings($) {
    my ($val) = @_;
    if (@warnings) {
        prt( "\nGot ".scalar @warnings." WARNINGS...\n" );
        foreach my $itm (@warnings) {
           prt("$itm\n");
        }
        prt("\n");
    } else {
        prt( "\nNo warnings issued.\n\n" ) if (VERB9());
    }
}

sub pgm_exit($$) {
    my ($val,$msg) = @_;
    if (length($msg)) {
        $msg .= "\n" if (!($msg =~ /\n$/));
        prt($msg);
    }
    show_warnings($val);
    close_log($outfile,$load_log);
    exit($val);
}


sub prtw($) {
   my ($tx) = shift;
   $tx =~ s/\n$//;
   prt("$tx\n");
   push(@warnings,$tx);
}


# ($parent,$slot,$keys) = get_this_slot_keys($rem);
sub get_this_slot_keys($) {
    my $rem = shift;    # $rem
    my $len = length($rem);
    my @arr = split(",",$rem);
    my $p = "";
    my $s = "";
    my $k = "";
    $len = scalar @arr;
    if ($len) {
        $p = trim_all($arr[0]);
        $len--;
    }
    if ($len) {
        $s = trim_all($arr[1]);
        # $s =~ s/SLOT\((.+)\)/$1/;
        $s =~ s/\s*SLOT\s*\(\s*//;
        $s =~ s/\)\s*$//;
        $s = trim_all($s);
        if ($s =~ /\)\s*\)$/) {
            $s =~ s/\)\s*\)$/\)/;
        }
        $len--;
    }
    if ($len) {
        $k = trim_all($arr[2]);
        $k =~ s/\)$//;
        $len--;
    }
    return ($p,$s,$k);
}


sub process_in_file($) {
    my ($inf) = @_;
    if (! open INF, "<$inf") {
        pgm_exit(1,"ERROR: Unable to open file [$inf]\n"); 
    }
    my @lines = <INF>;
    close INF;
    my $lncnt = scalar @lines;
    prt("Processing $lncnt lines, from [$inf]...\n");
    my ($line,$inc,,$act,$lnn,$men,$ra,$txt,$len,$lenmen);
    my ($ind,$rem,$p,$s,$k,$cnt,$tmp);
    my $var1 = '';
    my $var2 = '';
    $lnn = 0;
    my @acts = ();
    my @allacts = ();
    my %menus = ();
    my @menua = ();
    my $acnt = 0;
    my $dt = lu_get_YYYYMMDD_hhmmss_UTC(time()).' UTC';
    my $by = $pgmname;
    $men = '';

    # begin HEADER block
    my $qt5h .= "// #### GEN HEADER CODE ############################################## \n";
    $qt5h .= "// gen Qt5 header code, gen by $by, on $dt.\n";
    # begin CPP block
    my $qt5 = "\n\n";
    $qt5 .= "// #### GEN CODE ############################################## \n";
    $qt5 .= "// gen Qt5 code, gen by $by, on $dt.\n";
    $men = 'menu';
    foreach $line (@lines) {
        chomp $line;
        $lnn++;
        $line = trim_all($line);
        $len = length($line);
        $line =~ s/;$//;
        next if ($len == 0);
        next if ($line =~ /^\/\//);
        next if ($line =~ /^\#/);
        if ($line =~ /\s*Q3PopupMenu\s*\*\s*(\w+)\s*+=/) {
            $men = $1;
            $cnt = scalar @acts;
            if ($cnt) {
                $qt5 .= "\n";
                $qt5 .= "// add $cnt actions to menu $var1\n";
                foreach $act (@acts) {
                    $qt5 .= "  $var1->addAction($act);\n"
                }
            }
            $var1 = $men."Menu";
            prt("$lnn: Menu $var1\n");
            $acnt++;
            $menus{$men} = [];
            $ra = $menus{$men};
            push(@menua,$var1);
            $lenmen = length($men);
            @acts = ();
        } elsif ($line =~ /\s*Q3PopupMenu\s+(\w+)\s*\(\s*(\w+)\s*\)/) {
            $men = $1;
            $cnt = scalar @acts;
            if ($cnt) {
                $qt5 .= "\n";
                $qt5 .= "// add $cnt actions to menu $var1\n";
                foreach $act (@acts) {
                    $qt5 .= "  $var1->addAction($act);\n"
                }
            }
            $var1 = $men."Menu";
            prt("$lnn: Menu $var1\n");
            $acnt++;
            $menus{$men} = [];
            $ra = $menus{$men};
            push(@menua,$var1);
            $lenmen = length($men);
            @acts = ();
        } elsif ($line =~ /menu->insertItem\s*\(\s*\"(\w+)\"/) {
            $txt = $1;
            prt("$lnn: Text '$txt', for QAction *".$men."Act\n");
            $qt5 .= "\n";
            $qt5 .= "// Start a NEW Menu item\n";
            $qt5 .= "  $var1 = menu->addMenu(tr(\"$txt\"));\n";
            @acts = ();
        } elsif ($line =~ /$men->insertItem\(\s*\"([\(\)\/ \w]+)\"\s*,\s*/) {
            $act = $1; 
            $ind = index($line,$act);
            $rem = "???";
            $p = '';
            $s = '_FIX_';
            $k = '';
            if ($ind > 10) {
                $rem = trim_all(substr($line,$ind+length($act)+2));
                ($p,$s,$k) = get_this_slot_keys($rem);
                $rem = 'ok';
            }
            $var2 = trim_all($s);
            $var2 =~ s/\)+$//;
            $var2 =~ s/\($//;
            $var2 .= "Act";
            $qt5 .= "  $var2 = new QAction(tr(\"$act\"),this);\n";
            $qt5 .= "  $var2->setStatusTip(tr(\"$act\"));\n";
            $qt5 .= "  $var2->setShortcut($k);\n" if (length($k));
            $qt5 .= "  connect($var2, SIGNAL(triggered()), $p, SLOT($s));\n";
            $qt5 .= "\n";
            push(@allacts, $var2);
            push(@acts, $var2);
            prt("$lnn: Act $var2, txt $act, [ $p, $s, $k ], '$rem'\n");
        } elsif ($line =~ /$men->addSeparator/) {
        } elsif ($line =~ /$men\.addSeparator/) {
        } elsif ($line =~ /$men\.setItemChecked/) {

        } elsif ($line =~ /menu\.insertItem\(\"(.+)\",\s*this,\s*SLOT\((\w+)\(\)/) {
            $act = $1; 
            $ind = index($line,$act);
            $rem = "???";
            $p = '';
            $s = '_FIX_';
            $k = '';
            if ($ind > 10) {
                $rem = trim_all(substr($line,$ind+length($act)+2));
                ($p,$s,$k) = get_this_slot_keys($rem);
                $rem = 'ok';
            }
            $var2 = trim_all($s);
            $var2 =~ s/\)+$//;
            $var2 =~ s/\($//;
            $var2 .= "Act";
            $qt5 .= "  $var2 = new QAction(tr(\"$act\"),this);\n";
            $qt5 .= "  $var2->setStatusTip(tr(\"$act\"));\n";
            $qt5 .= "  $var2->setShortcut($k);\n" if (length($k));
            $qt5 .= "  connect($var2, SIGNAL(triggered()), $p, SLOT($s));\n";
            $qt5 .= "\n";
            push(@allacts, $var2);
            push(@acts, $var2);
            prt("$lnn: Act $var2, txt $act, [ $p, $s, $k ], '$rem'\n");
        } else {
            prtw("WARNING:$lnn: $line NOT PARSED\n");
        }
    }
    # $load_log = 1;
    $cnt = scalar @acts;
    if ($cnt) {
        $qt5 .= "\n";
        $qt5 .= "// add $cnt actions to menu $var1\n";
        foreach $act (@acts) {
            $qt5 .= "  $var1->addAction($act);\n"
        }
    }
    $qt5 .= "\n";
    $qt5 .= "// #### END GEN CODE ############################################## \n";
    # add the new menu items
    $cnt = scalar @menua;
    $qt5h .= "// Add $cnt QMenu items to header\n";
    foreach $var1 (@menua) {
        $qt5h .= " QMenu *$var1;\n";
    }
    $cnt = scalar @allacts;
    $qt5h .= "// Add $cnt QAction items to header\n";
    foreach $var2 (@allacts) {
        $qt5h .= " QAction *$var2;\n";
    }
    $qt5h .= "// #### END GEN HEADER CODE ############################################## \n";
    $qt5h . "\n";

    if (length($out_file)) {
        $tmp = $qt5;
        $tmp .= $qt5h;
        write2file($tmp,$out_file);
        prt("Qt5 code written to $out_file\n");
    } else {
        prt("$qt5\n");
        prt("$qt5h\n");
        prt("No -o file outfile given...\n");
    }
}

#########################################
### MAIN ###
parse_args(@ARGV);
process_in_file($in_file);
pgm_exit(0,"");
########################################

sub need_arg {
    my ($arg,@av) = @_;
    pgm_exit(1,"ERROR: [$arg] must have a following argument!\n") if (!@av);
}

sub parse_args {
    my (@av) = @_;
    my ($arg,$sarg);
    my $verb = VERB2();
    while (@av) {
        $arg = $av[0];
        if ($arg =~ /^-/) {
            $sarg = substr($arg,1);
            $sarg = substr($sarg,1) while ($sarg =~ /^-/);
            if (($sarg =~ /^h/i)||($sarg eq '?')) {
                give_help();
                pgm_exit(0,"Help exit(0)");
            } elsif ($sarg =~ /^v/) {
                if ($sarg =~ /^v.*(\d+)$/) {
                    $verbosity = $1;
                } else {
                    while ($sarg =~ /^v/) {
                        $verbosity++;
                        $sarg = substr($sarg,1);
                    }
                }
                $verb = VERB2();
                prt("Verbosity = $verbosity\n") if ($verb);
            } elsif ($sarg =~ /^l/) {
                if ($sarg =~ /^ll/) {
                    $load_log = 2;
                } else {
                    $load_log = 1;
                }
                prt("Set to load log at end. ($load_log)\n") if ($verb);
            } elsif ($sarg =~ /^o/) {
                need_arg(@av);
                shift @av;
                $sarg = $av[0];
                $out_file = $sarg;
                prt("Set out file to [$out_file].\n") if ($verb);
            } else {
                pgm_exit(1,"ERROR: Invalid argument [$arg]! Try -?\n");
            }
        } else {
            $in_file = $arg;
            prt("Set input to [$in_file]\n") if ($verb);
        }
        shift @av;
    }

    if ($debug_on) {
        prtw("WARNING: DEBUG is ON!\n");
        if (length($in_file) ==  0) {
            $in_file = $def_file;
            prt("Set DEFAULT input to [$in_file]\n");
        }
    }
    if (length($in_file) ==  0) {
        pgm_exit(1,"ERROR: No input files found in command!\n");
    }
    if (! -f $in_file) {
        pgm_exit(1,"ERROR: Unable to find in file [$in_file]! Check name, location...\n");
    }
}

sub give_help {
    prt("$pgmname: version $VERS\n");
    prt("Usage: $pgmname [options] in-file\n");
    prt("Options:\n");
    prt(" --help  (-h or -?) = This help, and exit 0.\n");
    prt(" --verb[n]     (-v) = Bump [or set] verbosity. def=$verbosity\n");
    prt(" --load        (-l) = Load LOG at end. ($outfile)\n");
    prt(" --out <file>  (-o) = Write output to this file.\n");
}

# eof - template.pl