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prautoblogger/includes/admin/class-settings-fields-extended.php
peptiderepo 0a68741945 feat: add OpenRouter image provider for higher-quality image generation 
Replaces Cloudflare Workers AI (FLUX.1 schnell) as the default image
provider with OpenRouter, which offers FLUX.2 Pro, Seedream 3.0,
Gemini Flash Image, and GPT Image 1 at comparable or better pricing.

- New provider class (3-file split: provider, pricing, support) reuses
  the existing OpenRouter API key and Cloudflare AI Gateway
- Admin settings: new Image Provider dropdown (openrouter/cloudflare),
  model picker shows all available image models from both providers
- Image pipeline auto-selects the configured provider at construction
- Cost logging now uses actual model name instead of hardcoded flux-1-schnell
- Default model changed to black-forest-labs/flux-2-pro ($0.03/image)
- Unit tests for pricing resolution and provider response parsing

Cost impact: FLUX.2 Pro at $0.03/image vs schnell at $0.0007/image —
~43x more expensive per image, but dramatically better quality. At 2
images/article × 1 article/day = ~$1.80/month. Seedream 3.0 ($0.003)
available as a budget alternative.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-04-18 09:19:13 +07:00

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<?php
declare(strict_types=1);
/**
* Extended settings fields: schedule, publishing, analytics, and images.
*
* What: Declarative field definitions for operational settings sections.
* Who calls it: PRAutoBlogger_Settings_Fields::get_fields() merges these in.
* Dependencies: PRAUTOBLOGGER_DEFAULT_IMAGE_MODEL, PRAUTOBLOGGER_DEFAULT_IMAGE_STYLE_SUFFIX constants.
*
* @see admin/class-settings-fields.php — Core fields and sections; calls get_extended_fields().
* @see admin/class-admin-page.php — Renders fields registered from these definitions.
* @see CONVENTIONS.md — "How To: Add a New Admin Setting".
*/
class PRAutoBlogger_Settings_Fields_Extended {
/**
* Static image model list for the admin model picker.
* No registry API for these — they're hardcoded here and updated manually.
*
* @return array<int, array<string, mixed>>
*/
public static function get_image_models(): array {
return [
[
'id' => 'black-forest-labs/flux-2-pro',
'name' => 'FLUX.2 Pro',
'provider' => 'openrouter',
'cost_per_image' => 0.03,
'capabilities' => [ 'image_generation' ],
'description' => __( 'High quality, fast. Recommended.', 'prautoblogger' ),
],
[
'id' => 'black-forest-labs/flux-1.1-pro',
'name' => 'FLUX 1.1 Pro',
'provider' => 'openrouter',
'cost_per_image' => 0.04,
'capabilities' => [ 'image_generation' ],
'description' => __( 'Previous gen Pro. Slightly pricier.', 'prautoblogger' ),
],
[
'id' => 'black-forest-labs/flux-1.1-pro-ultra',
'name' => 'FLUX 1.1 Pro Ultra',
'provider' => 'openrouter',
'cost_per_image' => 0.06,
'capabilities' => [ 'image_generation' ],
'description' => __( 'Highest quality FLUX. Premium.', 'prautoblogger' ),
],
[
'id' => 'bytedance/seedream-3.0',
'name' => 'Seedream 3.0',
'provider' => 'openrouter',
'cost_per_image' => 0.003,
'capabilities' => [ 'image_generation' ],
'description' => __( 'Budget. Good quality, very low cost.', 'prautoblogger' ),
],
[
'id' => 'google/gemini-2.5-flash-preview:image',
'name' => 'Gemini 2.5 Flash Image',
'provider' => 'openrouter',
'cost_per_image' => 0.01,
'capabilities' => [ 'image_generation' ],
'description' => __( 'Google multimodal. Text-in-image.', 'prautoblogger' ),
],
[
'id' => 'openai/gpt-image-1',
'name' => 'GPT Image 1',
'provider' => 'openrouter',
'cost_per_image' => 0.04,
'capabilities' => [ 'image_generation' ],
'description' => __( 'OpenAI. Photorealistic style.', 'prautoblogger' ),
],
[
'id' => 'flux-1-schnell',
'name' => 'FLUX.1 schnell (Cloudflare)',
'provider' => 'cloudflare',
'cost_per_image' => 0.0007,
'capabilities' => [ 'image_generation' ],
'description' => __( 'Cheapest. Low quality, 4-step.', 'prautoblogger' ),
],
];
}
/**
* Get schedule, publishing, analytics, and image settings fields.
*
* @return array<int, array<string, mixed>>
*/
public static function get_fields(): array {
return [
// ── Schedule & Budget ───────────────────────────────────────
[
'id' => 'prautoblogger_daily_article_target',
'label' => __( 'Articles per Day', 'prautoblogger' ),
'type' => 'number',
'section' => 'prautoblogger_schedule',
'default' => 1,
'min' => 1,
'max' => 10,
],
[
'id' => 'prautoblogger_schedule_time',
'label' => __( 'Generation Time', 'prautoblogger' ),
'type' => 'time',
'section' => 'prautoblogger_schedule',
'default' => '03:00',
'description' => __( 'Daily generation runs at this time (server timezone).', 'prautoblogger' ),
],
[
'id' => 'prautoblogger_monthly_budget_usd',
'label' => __( 'Monthly Budget (USD)', 'prautoblogger' ),
'type' => 'number',
'section' => 'prautoblogger_schedule',
'default' => 50,
'min' => 0,
'step' => '0.01',
'description' => __( 'Hard stop when reached. 0 = unlimited.', 'prautoblogger' ),
],
// ── Publishing ──────────────────────────────────────────────
[
'id' => 'prautoblogger_auto_publish',
'label' => __( 'Auto-Publish', 'prautoblogger' ),
'type' => 'toggle',
'section' => 'prautoblogger_publishing',
'default' => '0',
'description' => __( 'Automatically publish editor-approved posts. When off, all posts go to the Review Queue as drafts.', 'prautoblogger' ),
],
[
'id' => 'prautoblogger_default_author',
'label' => __( 'Default Author', 'prautoblogger' ),
'type' => 'author_select',
'section' => 'prautoblogger_publishing',
'default' => 0,
'description' => __( 'WordPress user assigned as author of generated posts.', 'prautoblogger' ),
],
[
'id' => 'prautoblogger_default_category',
'label' => __( 'Default Category', 'prautoblogger' ),
'type' => 'category_select',
'section' => 'prautoblogger_publishing',
'default' => 0,
'description' => __( 'Fallback category for generated posts.', 'prautoblogger' ),
],
[
'id' => 'prautoblogger_log_level',
'label' => __( 'Log Level', 'prautoblogger' ),
'type' => 'select',
'section' => 'prautoblogger_publishing',
'default' => 'info',
'options' => [
'error' => __( 'Error — only failures', 'prautoblogger' ),
'warning' => __( 'Warning — errors + warnings', 'prautoblogger' ),
'info' => __( 'Info — key events (recommended)', 'prautoblogger' ),
'debug' => __( 'Debug — everything (verbose)', 'prautoblogger' ),
],
'description' => __( 'Controls detail level in the Activity Log.', 'prautoblogger' ),
],
// ── Analytics ───────────────────────────────────────────────
[
'id' => 'prautoblogger_ga4_property_id',
'label' => __( 'GA4 Property ID', 'prautoblogger' ),
'type' => 'text',
'section' => 'prautoblogger_analytics',
'description' => __( 'Format: properties/XXXXXXXXX. Leave blank to skip GA4.', 'prautoblogger' ),
],
[
'id' => 'prautoblogger_ga4_credentials_json',
'label' => __( 'Service Account JSON', 'prautoblogger' ),
'type' => 'password',
'section' => 'prautoblogger_analytics',
'description' => __( 'Paste the full JSON key file for a service account with Analytics read access.', 'prautoblogger' ),
],
// ── Images ─────────────────────────────────────────────────
[
'id' => 'prautoblogger_image_enabled',
'label' => __( 'Enable Image Generation', 'prautoblogger' ),
'type' => 'toggle',
'section' => 'prautoblogger_images',
'default' => '0',
'description' => __( 'When enabled, generate two images (A/B) for each published article.', 'prautoblogger' ),
],
[
'id' => 'prautoblogger_image_provider',
'label' => __( 'Image Provider', 'prautoblogger' ),
'type' => 'select',
'section' => 'prautoblogger_images',
'default' => 'openrouter',
'options' => [
'openrouter' => __( 'OpenRouter (FLUX.2 Pro, Seedream, GPT-Image)', 'prautoblogger' ),
'cloudflare' => __( 'Cloudflare Workers AI (FLUX.1 schnell)', 'prautoblogger' ),
],
'description' => __( 'OpenRouter reuses your existing API key and offers higher-quality models. Cloudflare is cheaper but lower quality.', 'prautoblogger' ),
],
[
'id' => 'prautoblogger_image_model',
'label' => __( 'Image Model', 'prautoblogger' ),
'type' => 'model_select',
'section' => 'prautoblogger_images',
'default' => PRAUTOBLOGGER_DEFAULT_IMAGE_MODEL,
'capability' => 'image_generation',
'description' => __( 'Pick a model from your selected provider. FLUX.2 Pro recommended for quality.', 'prautoblogger' ),
'badge' => __( 'Quality', 'prautoblogger' ),
],
[
'id' => 'prautoblogger_cloudflare_ai_token',
'label' => __( 'Cloudflare API Token', 'prautoblogger' ),
'type' => 'password',
'section' => 'prautoblogger_images',
'description' => __( 'Only needed if using Cloudflare provider. Workers AI token with Read + Edit scope.', 'prautoblogger' ),
'icon' => '🔑',
],
[
'id' => 'prautoblogger_cloudflare_account_id',
'label' => __( 'Cloudflare Account ID', 'prautoblogger' ),
'type' => 'text',
'section' => 'prautoblogger_images',
'default' => '',
'description' => __( 'Only needed if using Cloudflare provider.', 'prautoblogger' ),
],
[
'id' => 'prautoblogger_image_style_suffix',
'label' => __( 'Style Suffix', 'prautoblogger' ),
'type' => 'textarea',
'section' => 'prautoblogger_images',
'default' => PRAUTOBLOGGER_DEFAULT_IMAGE_STYLE_SUFFIX,
'description' => __( 'Appended to every image prompt. Controls visual look. Changing mid-run causes visible style drift.', 'prautoblogger' ),
],
];
}
}
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