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prautoblogger/CHANGELOG.md
peptiderepo 11108b3bb5 feat(images): Cloudflare Workers AI image provider (commit 1a) 
First commit of the image + Instagram A/B pipeline workstream. Ships the
Cloudflare Workers AI image provider, its pricing + validator helpers,
four new settings fields in a new "Images" admin section, and unit tests
with mocked HTTP. Nothing calls the provider yet from the article
pipeline — integration lands in commit 1b.

Why: CEO-approved on 2026-04-15 (see
convo/prautoblogger/threads/2026-04-image-pipeline/01-cto-handoff.md).
Style is locked to the 90s infomercial pastiche; default model is FLUX.1
[schnell] at ~$0.0011/MP (~$0.01/article for 8 images across 4 placements
x 2 variants).

Risk flags:
- Direct call to Cloudflare Workers AI bypassing AI Gateway (decision
  D-001, documented in convo/prautoblogger/decisions/). Gateway route
  to Workers AI currently 403s; OpenRouter gateway path unaffected.
- prab_event_log structured writes deferred to commit 1b when the
  table lands (decision D-002). Logger-based logging is in place now.
- No schema changes. No existing code paths touched outside settings.
- Backward compatible: provider is instantiable but not wired to any
  consumer yet.

Test plan:
- CI runs PHPUnit including the new CloudflareImageProviderTest.
- After merge: verify the new Images section appears on the settings
  page, the style-suffix textarea pre-fills with the infomercial prompt,
  and entering the existing CLOUDFLARE_AI_TOKEN + account UUID lets a
  future "Test Connection" button return OK (button ships in a later
  commit; the underlying validate_credentials_detailed() works today).

Files:
- includes/providers/interface-image-provider.php   (adopted from CTO draft)
- includes/providers/class-cloudflare-image-provider.php  (283 lines)
- includes/providers/class-cloudflare-image-pricing.php   (78 lines)
- includes/providers/class-cloudflare-image-validator.php (107 lines)
- includes/admin/class-settings-fields.php (+ Images section, 4 fields)
- prautoblogger.php (+ PRAUTOBLOGGER_DEFAULT_IMAGE_MODEL, _STYLE_SUFFIX)
- tests/unit/Providers/CloudflareImageProviderTest.php
- ARCHITECTURE.md (file tree, integrations table, options table, decision #16)
- CONVENTIONS.md (How To: Add a New Image Provider)
- CHANGELOG.md (Unreleased section)

Agent-Session: cowork-2026-04-15-image-pipeline-commit-1a
2026-04-15 10:11:10 +07:00

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Changelog

All notable changes to PRAutoBlogger will be documented in this file.

Format follows Keep a Changelog, and this project uses Semantic Versioning.

[Unreleased]

Added

  • Image provider: Cloudflare Workers AI (FLUX.1 family). First commit of the image + Instagram A/B pipeline workstream. Ships the provider, its pricing + validator helpers, four new settings fields in a new "Images" admin section, and unit tests with mocked HTTP. Nothing calls the provider yet from the article pipeline — integration lands in commit 1b.
    • includes/providers/interface-image-provider.php (adopted from the CTO's uncommitted draft) — contract for any image provider.
    • includes/providers/class-cloudflare-image-provider.php — FLUX on Workers AI, direct call to /accounts/{id}/ai/run/... (bypassing AI Gateway per decision D-001); exponential-backoff retries on 429 / 5xx / network, loud fail on 4xx; handles both raw-bytes and JSON-envelope response shapes.
    • includes/providers/class-cloudflare-image-pricing.php — model alias → full Workers AI id resolution + per-megapixel cost estimation.
    • includes/providers/class-cloudflare-image-validator.php — non-destructive "Test Connection" credential check that never generates a real image.
    • Settings: prautoblogger_cloudflare_ai_token (encrypted), prautoblogger_cloudflare_account_id, prautoblogger_image_model (schnell / dev), prautoblogger_image_style_suffix (default = CEO-locked 90s infomercial prompt).
    • Constants: PRAUTOBLOGGER_DEFAULT_IMAGE_MODEL, PRAUTOBLOGGER_DEFAULT_IMAGE_STYLE_SUFFIX.
    • Tests: tests/unit/Providers/CloudflareImageProviderTest.php covers happy path (raw bytes + JSON envelope), dimension + empty-prompt validation, 4xx loud-fail without retry, unexpected response shape, cost scaling across models and dimensions, and missing-token diagnostics.
  • ARCHITECTURE.md: new key decision #16 (image pipeline: Cloudflare Workers AI), new external API integration row, new options rows, file tree updates.
  • CONVENTIONS.md: new "How To: Add a New Image Provider" section.

[0.2.2] — 2026-04-12

Changed

  • CI/CD pipeline now runs PHPCS and PHPUnit before deploying. Added shivammathur/setup-php@v2 for PHP 8.1, Composer install, WordPress Coding Standards check, and full PHPUnit test suite. PHPCS runs in report-only mode (|| true) while codebase is brought into full compliance; PHPUnit failures block deploy.
  • Removed stub source providers (TikTok, Instagram, YouTube). These were dead code — not registered in Source_Collector, threw RuntimeException if enabled, and confused AI agents reading the codebase. The Source_Provider_Interface remains the contract for adding future platforms (see CONVENTIONS.md).
  • Removed "coming soon" checkboxes from Enabled Sources setting.
  • Updated ARCHITECTURE.md: removed stub file references, added cross-system LLM budget coordination section documenting how PRAutoBlogger and Peptide News share an OpenRouter account.

Improved

  • PublisherTest rewritten with real behavioral assertions. Now tests: post_status ('publish' vs 'draft'), generation metadata storage, title from idea, taxonomy assignment, tag assignment, run_id-based log linking, RuntimeException on WP_Error, action/filter hook firing. Replaces previous method-existence-only checks.

[0.2.1] — 2026-04-12

Changed

  • Reddit data source switched to RSS primary, .json fallback. PullPush.io was frequently stale/unavailable. Reddit RSS/Atom feeds work reliably from datacenter IPs (Hostinger) where .json gets 403. Comments are still fetched via .json (unavailable in RSS).
  • Updated "Enabled Sources" checkbox label to "Reddit (RSS + .json)".
  • Updated "Test Connections" to show RSS + .json status.
  • Source status indicator now shows Reddit RSS (Primary) and .json (Fallback).

Removed

  • class-pull-push-client.php — replaced by RSS feeds in class-reddit-json-client.php.
  • All PullPush.io references from admin UI, docs, and provider code.

Fixed

  • Generate Now button now always sends force: '1' to clear stale generation locks.
  • Fixed encryption double-encryption bug with enc: prefix detection.

[0.2.0] — 2026-04-12

Changed

  • Reddit data source migrated from OAuth to RSS + .json (no auth required). Reddit rejected our API application; RSS feeds and .json endpoints are free and require no authentication.
  • Removed Reddit Client ID and Client Secret fields from admin API Keys tab.
  • Updated "Test Connections" results to show Reddit source status.

Added

  • Source status indicator in API Keys tab showing RSS and .json availability with live status dots and last-collection timestamp.
  • Configurable research cache TTL (1–72 hours) in Sources tab.
  • Reddit time window selector (24h / week / month) in Sources tab.
  • Posts-per-subreddit limit (5–100) in Sources tab.
  • LiteSpeed cache purge step in CI/CD deploy pipeline.

Removed

  • class-reddit-api-client.php — replaced by class-reddit-json-client.php.
  • Reddit OAuth credential fields and encrypted storage entry.

Fixed

  • Deploy pipeline now purges LiteSpeed/OPcache after file extraction, preventing stale PHP bytecode from being served.

[0.1.0] — 2026-04-10

Added

  • Initial plugin scaffold with WordPress-native architecture.
  • OpenRouter LLM provider with configurable model selection and retry logic.
  • Reddit API source provider (OAuth2 script app) for collecting posts and comments.
  • Content analysis engine: detects recurring questions, complaints, and comparisons.
  • Idea scorer with deduplication against existing posts.
  • Configurable writer agent pipeline (single-pass or multi-step: outline → draft → polish).
  • Chief editor agent for LLM-powered editorial review before publishing.
  • Publisher with full generation metadata stored as post_meta.
  • Cost tracker with per-call logging, monthly budget enforcement, and hard-stop.
  • Metrics collector: WordPress native + GA4 integration + composite content scoring.
  • Admin settings page with sections for API keys, models, content, sources, schedule, and analytics.
  • Metrics dashboard showing monthly spend, budget utilization, cost by stage, and daily spend.
  • Post metabox showing generation metadata on PRAutoBlogger-generated posts.
  • Admin notices for missing API keys, budget warnings, and configuration hints.
  • Stub providers for TikTok, Instagram, and YouTube (future implementation).
  • Encrypted storage for API keys using AES-256-CBC with wp_salt().
  • AJAX-powered "Generate Now" and "Test Connections" buttons.
  • Custom database tables for source data, analysis results, generation logs, and content scores.
  • Clean uninstall handler removing all plugin data.
  • ARCHITECTURE.md and CONVENTIONS.md for AI-readable codebase documentation.
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