<?php

declare(strict_types=1);

require dirname(__DIR__) . '/vendor/autoload.php';

use app\controller\api\Chat;
use app\model\UploadFile;
use app\service\ComfyJobDeferredException;
use app\service\ComfyUIService;
use app\service\OpenAIService;

$app = new think\App(dirname(__DIR__) . DIRECTORY_SEPARATOR);
$app->initialize();

$model = OpenAIService::getImageModel();
$source = null;
foreach (UploadFile::where('file_type', 'image')->order('id', 'desc')->limit(50)->select() as $candidate) {
    $path = Chat::resolveStoredPath('/api/uploads/' . rawurlencode((string) $candidate->stored_name));
    if ($path !== null && @getimagesize($path)) {
        $source = ['record' => $candidate, 'path' => $path];
        break;
    }
}
if ($source === null) {
    fwrite(STDERR, "No stored source image is available for integration testing.\n");
    exit(2);
}

$createdAttachments = [];
$maskPath = sys_get_temp_dir() . DIRECTORY_SEPARATOR . 'comfy_inpaint_mask_' . bin2hex(random_bytes(6)) . '.png';

$cleanup = static function () use (&$createdAttachments, &$maskPath): void {
    foreach ($createdAttachments as $attachment) {
        $filename = urldecode(basename(parse_url((string) ($attachment['url'] ?? ''), PHP_URL_PATH) ?: ''));
        if ($filename === '') {
            continue;
        }
        $record = UploadFile::where('stored_name', $filename)->find();
        if (!$record) {
            continue;
        }
        $path = Chat::resolveStoredPath('/api/uploads/' . rawurlencode($filename));
        if ($path !== null && is_file($path)) {
            @unlink($path);
        }
        $record->delete();
    }
    if (is_file($maskPath)) {
        @unlink($maskPath);
    }
};
register_shutdown_function($cleanup);

/**
 * Wait for a ComfyUI task until it finishes, even if the first request is
 * intentionally deferred into the background by the HTTP budget guard.
 *
 * @return array<int, array{type:string,url:string,name:string,mime:string,size:int}>
 */
$waitForFinalOutputs = static function (
    $model,
    string $promptId,
    int $userId,
    int $httpBudgetSeconds = 120,
    int $pollTimeoutSeconds = 900
): array {
    try {
        return ComfyUIService::waitAndCollect($model, $promptId, $userId, null, $httpBudgetSeconds);
    } catch (ComfyJobDeferredException $exception) {
        $deadline = time() + $pollTimeoutSeconds;
        while (time() < $deadline) {
            $status = ComfyUIService::inspect($model, $promptId);
            if (($status['state'] ?? '') === 'done' && !empty($status['images'])) {
                return ComfyUIService::storeInspectImages($model, $status['images'], $userId);
            }
            if (($status['state'] ?? '') === 'error') {
                throw new RuntimeException((string) ($status['message'] ?? 'ComfyUI task failed'));
            }
            sleep(2);
        }

        throw new RuntimeException('ComfyUI task did not finish before the integration timeout');
    }
};

try {
    $userId = (int) $source['record']->user_id;
    $imgPromptId = ComfyUIService::submitEdit(
        $model,
        'Preserve the exact source composition and subjects, improve natural lighting and fine detail, photorealistic.',
        $source['path'],
        null,
        'img2img'
    );
    $imgOutputs = $waitForFinalOutputs($model, $imgPromptId, $userId);
    $createdAttachments = array_merge($createdAttachments, $imgOutputs);
    if ($imgOutputs === []) {
        throw new RuntimeException('img2img returned no output');
    }
    echo 'IMG2IMG PASS prompt_id=' . $imgPromptId . PHP_EOL;

    [$width, $height] = getimagesize($source['path']);
    $mask = imagecreatetruecolor($width, $height);
    $black = imagecolorallocate($mask, 0, 0, 0);
    $white = imagecolorallocate($mask, 255, 255, 255);
    imagefill($mask, 0, 0, $black);
    $boxWidth = max(16, (int) round($width * 0.12));
    $boxHeight = max(16, (int) round($height * 0.08));
    imagefilledrectangle(
        $mask,
        max(0, $width - $boxWidth - 8),
        max(0, $height - $boxHeight - 8),
        max(0, $width - 8),
        max(0, $height - 8),
        $white
    );
    imagepng($mask, $maskPath);
    imagedestroy($mask);

    $inpaintPromptId = ComfyUIService::submitEdit(
        $model,
        'Reconstruct the white masked region using the surrounding background texture, seamless and natural.',
        $source['path'],
        $maskPath,
        'inpaint'
    );
    $inpaintOutputs = $waitForFinalOutputs($model, $inpaintPromptId, $userId);
    $createdAttachments = array_merge($createdAttachments, $inpaintOutputs);
    if ($inpaintOutputs === []) {
        throw new RuntimeException('inpaint returned no output');
    }
    echo 'INPAINT PASS prompt_id=' . $inpaintPromptId . PHP_EOL;
    echo 'RESULT 2/2 integration tasks passed' . PHP_EOL;
} catch (Throwable $exception) {
    fwrite(STDERR, get_class($exception) . ': ' . $exception->getMessage() . PHP_EOL);
    exit(1);
}