fix: rename OpenRouter image files to match autoloader kebab-case convention

The autoloader splits CamelCase on lowercase→uppercase transitions, so PRAutoBlogger_OpenRouter_Image_Provider maps to class-open-router-image-provider.php. Files were named class-openrouter-* (missing hyphen), causing a PHP fatal error when the pipeline tried to instantiate the provider — which killed the process before any logging could fire. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-04-18 09:58:04 +07:00
parent 4cc9b39693
commit d886aee1d7
3 changed files with 0 additions and 0 deletions
--- a/includes/providers/class-open-router-image-support.php
+++ b/includes/providers/class-open-router-image-support.php
@@ -0,0 +1,144 @@
+<?php
+declare(strict_types=1);
+
+/**
+ * Support helpers for the OpenRouter image provider — API key lookup,
+ * response parsing, retry backoff, and logging.
+ *
+ * Split from the provider to keep both files under the 300-line cap.
+ *
+ * Triggered by: PRAutoBlogger_OpenRouter_Image_Provider only.
+ * Dependencies: PRAutoBlogger_Encryption, PRAutoBlogger_Logger.
+ *
+ * @see class-openrouter-image-provider.php — Sole caller.
+ */
+class PRAutoBlogger_OpenRouter_Image_Support {
+
+	/**
+	 * Get the decrypted OpenRouter API key from settings.
+	 *
+	 * @return string Plaintext key.
+	 * @throws \RuntimeException If key is not configured or decrypt fails.
+	 */
+	public function get_api_key(): string {
+		$stored = (string) get_option( 'prautoblogger_openrouter_api_key', '' );
+		if ( '' === $stored ) {
+			throw new \RuntimeException(
+				__( 'OpenRouter API key is not configured. Go to PRAutoBlogger → Settings.', 'prautoblogger' )
+			);
+		}
+
+		if ( PRAutoBlogger_Encryption::is_encrypted( $stored ) ) {
+			$decrypted = PRAutoBlogger_Encryption::decrypt( $stored );
+			if ( '' === $decrypted ) {
+				throw new \RuntimeException(
+					__( 'OpenRouter API key could not be decrypted. Re-enter in Settings.', 'prautoblogger' )
+				);
+			}
+			return $decrypted;
+		}
+
+		return $stored;
+	}
+
+	/**
+	 * Extract raw image bytes from OpenRouter's chat/completions response.
+	 *
+	 * The response contains choices[0].message.images[0].image_url.url
+	 * as a data URI: "data:image/png;base64,{bytes}".
+	 *
+	 * @param string $raw Raw JSON response body.
+	 * @return string Decoded image bytes.
+	 * @throws \RuntimeException If the response doesn't contain an image.
+	 */
+	public function extract_image_bytes( string $raw ): string {
+		$decoded = json_decode( $raw, true );
+		if ( ! is_array( $decoded ) ) {
+			throw new \RuntimeException(
+				esc_html__( 'OpenRouter returned invalid JSON.', 'prautoblogger' )
+			);
+		}
+
+		$images = $decoded['choices'][0]['message']['images'] ?? [];
+		if ( empty( $images ) ) {
+			throw new \RuntimeException(
+				esc_html__( 'OpenRouter response contained no images.', 'prautoblogger' )
+			);
+		}
+
+		$data_url = $images[0]['image_url']['url'] ?? '';
+		if ( '' === $data_url ) {
+			throw new \RuntimeException(
+				esc_html__( 'OpenRouter image URL is empty.', 'prautoblogger' )
+			);
+		}
+
+		$comma_pos = strpos( $data_url, ',' );
+		if ( false === $comma_pos ) {
+			throw new \RuntimeException(
+				esc_html__( 'OpenRouter image data URI is malformed.', 'prautoblogger' )
+			);
+		}
+
+		$b64   = substr( $data_url, $comma_pos + 1 );
+		$bytes = base64_decode( $b64, true );
+		if ( false === $bytes || '' === $bytes ) {
+			throw new \RuntimeException(
+				esc_html__( 'OpenRouter image base64 decode failed.', 'prautoblogger' )
+			);
+		}
+
+		return $bytes;
+	}
+
+	/**
+	 * Emit a WARN line for a retryable image-gen failure.
+	 *
+	 * @param int    $attempt 1-based attempt number.
+	 * @param string $class   'network' or HTTP status code.
+	 * @param string $detail  Short failure detail.
+	 */
+	public function log_retry( int $attempt, string $class, string $detail ): void {
+		PRAutoBlogger_Logger::instance()->warning(
+			sprintf(
+				'OpenRouter image gen %s failure (attempt %d/%d): %s',
+				$class,
+				$attempt,
+				PRAUTOBLOGGER_MAX_RETRIES,
+				$detail
+			),
+			'openrouter-image'
+		);
+	}
+
+	/**
+	 * Sleep between retries with exponential backoff.
+	 *
+	 * @param int $attempt     1-based attempt that just failed.
+	 * @param int $retry_after Retry-After header value (0 if absent).
+	 */
+	public function backoff( int $attempt, int $retry_after = 0 ): void {
+		$delay = $retry_after > 0
+			? min( $retry_after, 60 )
+			: PRAUTOBLOGGER_RETRY_BASE_DELAY_SECONDS * (int) pow( 2, $attempt - 1 );
+		if ( $delay > 0 ) {
+			sleep( $delay );
+		}
+	}
+
+	/**
+	 * Greatest common divisor (for aspect ratio calculation).
+	 *
+	 * @param int $a First number.
+	 * @param int $b Second number.
+	 * @return int GCD.
+	 */
+	public function gcd( int $a, int $b ): int {
+		while ( 0 !== $b ) {
+			$t = $b;
+			$b = $a % $b;
+			$a = $t;
+		}
+		return max( $a, 1 );
+	}
+}