#!/usr/bin/perl
# 
# Copyright © 2015-2020 by Vincent Slyngstad
# 
# Permission is hereby granted, free of charge, to any person obtaining
# a copy of this software and associated documentation files (the
# "Software"), to deal in the Software without restriction, including
# without limitation the rights to use, copy, modify, merge, publish,
# distribute, sublicense, and/or sell copies of the Software, and to
# permit persons to whom the Software is furnished to do so, subject to
# the following conditions:
# 
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
# NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS LISTED ABOVE BE LIABLE
# FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
# CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
# 
# Except as contained in this notice, the names of the authors above
# shall not be used in advertising or otherwise to promote the sale, use
# or other dealings in this Software without prior written authorization
# from those authors.

# Look for files that start with something like:
#    digital
#    MAINDEC-08-DHRKA-B-PB  4/19/73
#    RK8E DISKLESS CONTROL TEST
#    ^Z
# followed by a valid BIN format image.

@todo = @ARGV;
for $f (@todo) {
  if (!open(INPUT, $f)) {
    warn "$f: $!\n";
    next;
  }
  binmode(INPUT);
  undef $/; # Read the whole file.
  $_ = <INPUT>;
  # Look for the Control-Z.
  if (/^([^\200\032]+)\032(.+)$/s) {
    # Found it
    $lbl = $1;
    $bn = $2;
#   warn "Got here: $f\n";
    if ($lbl =~ /maindec-(..)-([\w-]+)-pb/i) {
      ($type, $name) = ($1, $2);
      $name =~ y/A-Z/a-z/;
      warn "$name: type $type\n";
      if ($bn !~ /^\200+[^\200]+\200+$/s) {
        warn "$name: not a BIN tape!\n";
        next;
      }
      if (-f "$name-pb.lbl") {
        warn "Skipping $name in $f: $name-pb.lbl exists!\n";
        next;
      }
      if (-f "$name-pb") {
        warn "Skipping $name in $f: $name-pb exists!\n";
        next;
      }
      if (-f "$name-pb.od") {
        warn "Skipping $name in $f: $name-pb.od exists!\n";
        next;
      }
      # Write the label info
      open(OUTPUT, ">$name-pb.lbl") || die "$name-pb.lbl: $!";
      print OUTPUT $lbl;
      close(OUTPUT) || die die "$name-pb.lbl: $!";
      # Write the -pb file
      open(OUTPUT, ">$name-pb") || die "$name-pb: $!";
      binmode(OUTPUT);
      print OUTPUT $bn;
      close(OUTPUT) || die die "$name-pb: $!";
      # Write the label info
      open(OUTPUT, ">$name-pb.od") || die "$name-pb.od: $!";
      for $b (unpack("C*", $bn)) {
        printf OUTPUT "%04o\n", $b;
      }
      close(OUTPUT) || die die "$name-pb.od: $!";
    } else {
      warn "$f: Unparsed label:\n$lbl\n";
    }
  }
}