<?php
/*
* This file is part of Chevere.
*
* (c) Rodolfo Berrios <[email protected]>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
declare(strict_types=1);
namespace Rodber\Wordle;
use LengthException;
final class Compare
{
private array $computed;
private bool $match;
private float $percent;
private string $percentFormat;
private string $fraction;
public function __construct(
private Word $word,
private Word $against
) {
$this->assertLength($against);
$matches = 0;
$partial = [];
$values = $this->word->countValues();
foreach ($against->split() as $pos => $letter) {
$match = $this->word->getPosMatch($pos, $letter);
if ($match === Word::CHAR_MATCH_EXACT) {
$values[$letter]--;
$matches++;
}
if ($match === Word::CHAR_MATCH_PARTIAL) {
$partial[$pos] = $letter;
}
$this->computed[] = [
$letter => $match,
];
}
foreach ($partial as $pos => $letter) {
if ($values[$letter] === 0) {
$this->computed[$pos] = [
$letter => Word::CHAR_MATCH_NONE,
];
}
}
$this->match = $matches === $this->word->length();
$this->percent = $matches / $this->word->length();
$this->percentFormat = number_format(100 * $this->percent, 0) . '%';
$this->fraction = strval($matches)
. '/'
. strval($this->word->length());
}
public function computed(): array
{
return $this->computed;
}
public function match(): bool
{
return $this->match;
}
public function percent(): float
{
return $this->percent;
}
public function percentFormat(): string
{
return $this->percentFormat;
}
public function fraction(): string
{
return $this->fraction;
}
private function assertLength(Word $against): void
{
if ($this->word->length() !== $against->length()) {
throw new LengthException();
}
}
}
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