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<?php |
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/** |
| 3 |
* BotWriter Image Models Manager |
| 4 |
* |
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* Handles loading/storing image provider models from a dedicated JSON catalog. |
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* |
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* @package BotWriter |
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*/ |
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|
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if (!defined('ABSPATH')) { |
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exit; |
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} |
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|
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if (!defined('BOTWRITER_IMAGE_MODELS_OPTION')) { |
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define('BOTWRITER_IMAGE_MODELS_OPTION', 'botwriter_image_models_data'); |
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} |
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|
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/** |
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* Fallback catalog used when JSON file is unavailable. |
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* |
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* @return array |
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*/ |
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function botwriter_get_image_models_fallback_catalog() { |
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return array( |
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'version' => '1.0.0', |
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'updated' => gmdate('Y-m-d'), |
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'providers' => array( |
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'dalle' => array( |
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'default' => 'gpt-image-1', |
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'groups' => array( |
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'GPT Image' => array( |
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'gpt-image-1' => 'GPT Image 1', |
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), |
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), |
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'all_models' => array(), |
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), |
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'gemini' => array( |
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'default' => 'gemini-3.1-flash-lite-image', |
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'groups' => array( |
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'Gemini Image (Stable)' => array( |
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'gemini-3.1-flash-lite-image' => 'Gemini 3.1 Flash Lite Image', |
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'gemini-3.1-flash-image' => 'Gemini 3.1 Flash Image', |
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'gemini-3-pro-image' => 'Gemini 3 Pro Image', |
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'gemini-2.5-flash-image' => 'Gemini 2.5 Flash Image (legacy)', |
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), |
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'Legacy aliases (auto-migrated)' => array( |
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'gemini-3.1-flash-image-preview' => 'Gemini 3.1 Flash Image Preview (legacy alias)', |
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'gemini-3-pro-image-preview' => 'Gemini 3 Pro Image Preview (legacy alias)', |
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'gemini-2.5-flash-image-preview' => 'Gemini 2.5 Flash Image Preview (legacy alias)', |
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), |
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), |
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'all_models' => array(), |
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), |
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'fal' => array( |
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'default' => 'fal-ai/flux-pro/v1.1', |
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'groups' => array( |
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'Fal.ai' => array( |
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'fal-ai/flux-pro/v1.1' => 'Flux Pro v1.1', |
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), |
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), |
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'all_models' => array(), |
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), |
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'replicate' => array( |
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'default' => 'black-forest-labs/flux-1.1-pro', |
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'groups' => array( |
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'Replicate' => array( |
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'black-forest-labs/flux-1.1-pro' => 'Flux 1.1 Pro', |
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), |
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), |
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'all_models' => array(), |
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), |
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'stability' => array( |
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'default' => 'sd3.5-large-turbo', |
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'groups' => array( |
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'Stability' => array( |
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'sd3.5-large-turbo' => 'SD 3.5 Large Turbo', |
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), |
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), |
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'all_models' => array(), |
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), |
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'cloudflare' => array( |
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'default' => 'flux-1-schnell', |
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'groups' => array( |
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'Cloudflare' => array( |
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'flux-1-schnell' => 'FLUX.1 Schnell', |
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), |
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), |
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'all_models' => array(), |
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), |
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'stockphoto' => array( |
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'default' => 'random', |
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'groups' => array( |
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'Stock Photo' => array( |
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'random' => 'Random (auto rotate)', |
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'pixabay' => 'Pixabay', |
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'pexels' => 'Pexels', |
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'unsplash' => 'Unsplash', |
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'openverse' => 'Openverse', |
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), |
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), |
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'all_models' => array(), |
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), |
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'none' => array( |
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'default' => 'none', |
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'groups' => array( |
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'Disabled' => array( |
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'none' => 'No Image Generation', |
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), |
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), |
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'all_models' => array(), |
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), |
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), |
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); |
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} |
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|
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/** |
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* Load default image models from JSON file. |
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* |
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* @return array |
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*/ |
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function botwriter_load_default_image_models() { |
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$json_file = plugin_dir_path(dirname(__FILE__)) . 'image-models-default.json'; |
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|
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if (!file_exists($json_file)) { |
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return botwriter_get_image_models_fallback_catalog(); |
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} |
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|
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$json_content = file_get_contents($json_file); |
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if ($json_content === false) { |
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return botwriter_get_image_models_fallback_catalog(); |
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} |
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|
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$models_data = json_decode($json_content, true); |
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if (json_last_error() !== JSON_ERROR_NONE || !is_array($models_data)) { |
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return botwriter_get_image_models_fallback_catalog(); |
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} |
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|
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if (empty($models_data['providers']) || !is_array($models_data['providers'])) { |
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return botwriter_get_image_models_fallback_catalog(); |
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} |
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|
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return $models_data; |
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} |
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|
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/** |
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* Get persisted image models data, initialized from JSON if needed. |
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* |
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* @return array |
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*/ |
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function botwriter_get_image_models_data() { |
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$models_data = get_option(BOTWRITER_IMAGE_MODELS_OPTION); |
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|
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if (empty($models_data) || !is_array($models_data) || empty($models_data['providers'])) { |
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$models_data = botwriter_load_default_image_models(); |
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update_option(BOTWRITER_IMAGE_MODELS_OPTION, $models_data); |
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} |
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|
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return $models_data; |
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} |
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|
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/** |
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* Reset image models to default catalog from JSON. |
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* |
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* @return bool True on success. |
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*/ |
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function botwriter_reset_image_models_to_default() { |
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delete_option(BOTWRITER_IMAGE_MODELS_OPTION); |
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|
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$models_data = botwriter_get_image_models_data(); |
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return is_array($models_data) && !empty($models_data['providers']); |
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} |
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|
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/** |
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* Get grouped image models for a provider. |
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* |
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* @param string $provider Provider slug. |
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* @return array |
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*/ |
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function botwriter_get_provider_image_models($provider) { |
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$provider = sanitize_key((string) $provider); |
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$models_data = botwriter_get_image_models_data(); |
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|
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if (empty($models_data['providers'][$provider]['groups']) || !is_array($models_data['providers'][$provider]['groups'])) { |
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return array(); |
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} |
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|
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return $models_data['providers'][$provider]['groups']; |
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} |
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|
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/** |
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* Get a flattened map of image models for a provider. |
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* |
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* @param string $provider Provider slug. |
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* @return array |
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*/ |
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function botwriter_get_provider_image_models_flat($provider) { |
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$grouped = botwriter_get_provider_image_models($provider); |
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if (empty($grouped) || !is_array($grouped)) { |
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return array(); |
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} |
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|
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$flat = array(); |
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foreach ($grouped as $group_models) { |
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if (!is_array($group_models)) { |
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continue; |
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} |
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|
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foreach ($group_models as $model_id => $model_label) { |
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$flat[(string) $model_id] = (string) $model_label; |
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} |
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} |
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|
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return $flat; |
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} |
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|
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/** |
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* Get provider default image model. |
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* |
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* @param string $provider Provider slug. |
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* @return string |
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*/ |
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function botwriter_get_provider_default_image_model($provider) { |
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$provider = sanitize_key((string) $provider); |
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$models_data = botwriter_get_image_models_data(); |
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|
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if (!empty($models_data['providers'][$provider]['default'])) { |
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return (string) $models_data['providers'][$provider]['default']; |
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} |
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|
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return ''; |
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} |
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|
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/** |
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* Normalize an image model against the provider catalog. |
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* |
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* @param string $provider Provider slug. |
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* @param string $model Model value to normalize. |
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* @return string |
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*/ |
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function botwriter_normalize_image_model($provider, $model) { |
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$provider = sanitize_key((string) $provider); |
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$default_model = (string) botwriter_get_provider_default_image_model($provider); |
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|
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if ($provider === 'stockphoto') { |
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$model = sanitize_key((string) $model); |
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$valid_stock_models = array('pixabay', 'pexels', 'unsplash', 'openverse', 'random'); |
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|
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if (in_array($model, $valid_stock_models, true)) { |
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return $model; |
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} |
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|
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return 'random'; |
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} |
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if ($provider === 'none') { |
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return 'none'; |
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} |
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|
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if ($default_model === '') { |
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$default_model = 'gpt-image-1'; |
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} |
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|
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$model = trim((string) $model); |
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if ($model === '') { |
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return $default_model; |
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} |
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|
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if ($provider === 'gemini') { |
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$gemini_aliases = array( |
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'gemini-2.0-flash-preview-image-generation' => 'gemini-2.5-flash-image', |
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'gemini-2.0-flash-exp-image-generation' => 'gemini-2.5-flash-image', |
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'gemini-2.0-flash-image' => 'gemini-2.5-flash-image', |
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'gemini-2.5-flash-image-preview' => 'gemini-2.5-flash-image', |
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'gemini-3.1-flash-lite-image-preview' => 'gemini-3.1-flash-lite-image', |
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'gemini-3.1-flash-image-preview' => 'gemini-3.1-flash-image', |
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'gemini-3-pro-image-preview' => 'gemini-3-pro-image', |
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); |
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|
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$model_lc = strtolower($model); |
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if (isset($gemini_aliases[$model_lc])) { |
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$model = $gemini_aliases[$model_lc]; |
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} else { |
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$model = $model_lc; |
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} |
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} |
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|
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if ($provider === 'stability') { |
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$model_lc = strtolower($model); |
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$stability_aliases = array( |
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'sd3-large-turbo' => 'sd3.5-large-turbo', |
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'sd3-large' => 'sd3.5-large', |
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'sd3-medium' => 'sd3.5-medium', |
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); |
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|
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if (isset($stability_aliases[$model_lc])) { |
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$model = $stability_aliases[$model_lc]; |
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} |
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} |
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|
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if ($provider === 'cloudflare') { |
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$model_lc = strtolower($model); |
| 301 |
$cloudflare_aliases = array( |
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'@cf/black-forest-labs/flux-1-schnell' => 'flux-1-schnell', |
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'@cf/black-forest-labs/flux-2-dev' => 'flux-2-dev', |
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'@cf/black-forest-labs/flux-2-klein-4b' => 'flux-2-klein-4b', |
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'@cf/black-forest-labs/flux-2-klein-9b' => 'flux-2-klein-9b', |
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'@cf/leonardo/lucid-origin' => 'lucid-origin', |
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'@cf/leonardo/phoenix-1.0' => 'phoenix-1.0', |
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'@cf/bytedance/stable-diffusion-xl-lightning' => 'stable-diffusion-xl-lightning', |
| 309 |
'@cf/stabilityai/stable-diffusion-xl-base-1.0' => 'stable-diffusion-xl-base-1.0', |
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'@cf/lykon/dreamshaper-8-lcm' => 'dreamshaper-8-lcm', |
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); |
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|
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if (isset($cloudflare_aliases[$model_lc])) { |
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$model = $cloudflare_aliases[$model_lc]; |
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} |
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} |
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|
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$valid_models = array_keys(botwriter_get_provider_image_models_flat($provider)); |
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if (!empty($valid_models) && in_array($model, $valid_models, true)) { |
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return $model; |
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} |
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|
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return $default_model; |
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} |
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|
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/** |
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* Return option name used to store the model for an image provider. |
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* |
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* @param string $provider Provider slug. |
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* @return string |
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*/ |
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function botwriter_get_image_model_option_name($provider) { |
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$provider = sanitize_key((string) $provider); |
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if ($provider === 'gemini') { |
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return 'botwriter_gemini_image_model'; |
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} |
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|
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return "botwriter_{$provider}_model"; |
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} |
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|
