<?php
declare(strict_types=1);
namespace dW\HTML5\Test;

use dW\HTML5\CharacterToken;
use dW\HTML5\CommentToken;
use dW\HTML5\DOCTYPEToken;
use dW\HTML5\EndTagToken;
use dW\HTML5\StartTagToken;
use dW\HTML5\Tokenizer;

class StandardTest extends \PHPUnit\Framework\TestCase {
    const STATE_MAP = [
        'Data state'          => Tokenizer::DATA_STATE,
        'PLAINTEXT state'     => Tokenizer::PLAINTEXT_STATE,
        'RCDATA state'        => Tokenizer::RCDATA_STATE,
        'RAWTEXT state'       => Tokenizer::RAWTEXT_STATE,
        'Script data state'   => Tokenizer::SCRIPT_DATA_STATE,
        'CDATA section state' => Tokenizer::CDATA_SECTION_STATE,
    ];

    protected function makeTokenTests(string $file): iterable {
        $testSet = json_decode(file_get_contents($file), true);
        $index = 0;
        foreach ($testSet['tests'] as $test) {
            $index += 1;
            $test['initialStates'] = $test['initialStates'] ?? ["Data state"];
            for ($a = 0; $a < sizeof($test['initialStates']); $a++) {
                $tokens = [];
                foreach ($test['output'] as $token) {
                    switch ($token[0]) {
                        case "DOCTYPE":
                            $t = new DOCTYPEToken((string) $token[1], (string) $token[2], (string) $token[3]);
                            $t->forceQuirks = !$token[4];
                            $tokens[] = $t;
                            break;
                        case "StartTag":
                            $t = new StartTagToken($token[1], $token[3] ?? false);
                            foreach ($token[2] ?? [] as $name => $value) {
                                $t->setAttribute($name, $value);
                            }
                            $tokens[] = $t;
                            break;
                        case "EndTag":
                            $tokens[] = new EndTagToken($token[1]);
                            break;
                        case "Character":
                            $tokens[] = new CharacterToken($token[1]);
                            break;
                        case "Comment":
                            $tokens[] = new CommentToken($token[1]);
                            break;
                        default:
                            throw new \Exception("Token type '{$token[0]}' not implemented in standard test interpreter");
                    }
                    unset($t);
                    //yield "#$index {$test['description']} ({$test['initialStates'][$a]})" => [
                    yield [
                        $test['input'],                                 // input
                        $tokens,                                        // output
                        self::STATE_MAP[$test['initialStates'][$a]],    // initial state
                        $test['lastStartTag'] ?? null,                  // open element, if any
                        $test['errors'] ?? [],                          // errors, if any
                    ];
                }
            }
        }
    }
}