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>
FLUX.1 schnell requires width and height to be divisible by 8.
The default OG image size 1200×630 has 630 % 8 = 6 remainder,
causing HTTP 400 on every image generation call.
Changes:
- Pipeline default height 630 → 632 (nearest 8-aligned value)
- Provider now rounds any dimension to nearest multiple of 8 as
a defensive guard before sending to the API
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Wrap cost_usd accumulation in is_wp_error() guard so WP_Error
returns from generate_image_a/b don't crash on array access
- Add PRAUTOBLOGGER_DEFAULT_IMAGE_STYLE_SUFFIX to test bootstrap
- Add is_wp_error, sanitize_title, esc_html__ mocks to ImagePipelineTest
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Union types (array|WP_Error, int|WP_Error, string|WP_Error) require
PHP 8.0+. Removed return type declarations while keeping @return
docblocks intact for IDE/static analysis support.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Completes the image + A/B experiment workstream by integrating
image generation into the post publishing pipeline.
New classes:
- class-image-pipeline.php: Orchestrates A/B generation (article-driven
Image A → featured; source-driven Image B → post meta). Each image
independently fallible; article publishes even if both fail.
- class-image-prompt-builder.php: Synthesizes visual prompts from article
title+content and Reddit source data. Appends CEO-locked 90s infomercial
style suffix. Keeps prompts concise for FLUX.1 quality.
- class-image-media-sideloader.php: Downloads image bytes, creates temp
file, sideloads via media_handle_sideload(), sets alt text and metadata,
cleans up temp files.
Changes to existing files:
- Publisher.attach_generated_images(): Runs image pipeline post-creation,
sets _thumbnail_id (Image A) and _prautoblogger_image_b_id (Image B).
Errors logged but don't block post publication.
- Settings: prautoblogger_image_enabled (toggle, default off).
Tests:
- ImagePipelineTest.php: Orchestration, cost tracking, graceful failures.
- ImagePromptBuilderTest.php: Prompt generation, length limits.
Docs:
- ARCHITECTURE.md: New step 6b in data flow, new files in file tree.
- CHANGELOG.md: Commit 1a/1b breakdown.
Co-authored-by: peptiderepo <peptiderepo@users.noreply.github.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
