#!/usr/bin/perl

use strict;
use warnings;

use sigtrap handler => sub { exit; }, qw(INT);

die "Usage: $0 board_num=0 num_moves=1000 limit=0"
	if ($ARGV[0] || "") =~ /^-h|--help$/;

$_ = 1;
my $board_num = shift || 0;
my $num_moves = shift || 1000;

my $test_filename = "affenspiel-solution-test.txt";
my $best_filename = "affenspiel-solution-best.txt";

-f $test_filename and `tail -1 $best_filename` =~ /Solved in (\d+) moves/
	and print "Found solution in $best_filename\n" and $num_moves = $1;

print "Current best result is $num_moves moves, trying to improve it\n\n";

while (1) {
	my $limit_level = @ARGV ? $num_moves - 1 : 0;
	my $limit_label = $limit_level ? " (limit: $limit_level moves)" : "";
	print "Solving board #$board_num randomly$limit_label ... ";
	system("bin/affenspiel-solve -b $board_num -p -1 -m $limit_level >$test_filename 2>&1");

	my $line = `tail -1 $test_filename`;
	die "\n" unless $line =~ /^\w/;

	if ($line =~ /Solved in (\d+) moves/ && $1 < $num_moves) {
		$num_moves = $1;
		$line =~ s/\n/ (record)\n/;
		rename($test_filename, $best_filename);
	}
	print $line;
}