product_inventory/MEMORY.md

Project Memory

Project Context

This project (product_inventory) integrates Google Sheets with Shopify. It serves as a master inventory management tool where users edit product data in a Google Sheet, and scripts automatically sync those changes to Shopify.

Critical Components:

• Google Apps Script: Runs the logic.
• "vars" Sheet: Holds all configuration and API keys. NEVER hardcode credentials.
• Shopify Admin API: Used for syncing. REST for Orders, GraphQL for Products.

Work Patterns & Agreements

1. Documentation First: Before implementing complex features, we update the plan and often the documentation (README/ARCHITECTURE).
2. Safety First: We use SafeToAutoRun: false for commands that deploy or modify external state until verified.
3. Strict Typing: We use TypeScript. No any unless absolutely necessary (and even then, we try to avoid it).
4. TDD: We follow Test Driven Development (Red/Green/Refactor). Write failing tests before implementing features.
5. Artifact Usage: We use task.md, implementation_plan.md, and walkthrough.md to track state.

Key Technical Decisions

• Queue System: We implemented onEditQueue.ts to batch edits. This prevents hitting Shopify API rate limits and Google Apps Script execution limits during rapid manual edits.
• Hybrid API: We use REST for retrieving Orders (legacy/easier for flat data) and GraphQL for Products (more efficient/flexible).
• Global Exports: Functions in src/global.ts must be explicitly assigned to the global object (e.g., (global as any).func = func). This is required because Webpack bundles code into an IIFE, making top-level module functions unreachable from the frontend google.script.run or Apps Script triggers unless exposed this way.

User Preferences

• OS: Windows.
• Shell: PowerShell.
• Node Manager: fnm. 28: 29: ## Integrated Media Manager 30: We implemented a "Sidebar-First" architecture for product media (Option 2): 31: - Frontend: MediaSidebar.html uses Glassmorphism CSS and Client-Side Polling to detect SKU changes. 32: - Google Picker: Integrated via picker.js using an API Key and OAuth Token passed securely from backend. 33: - Drive as Source of Truth: All uploads go to Drive first (Folder structure: Root/SKU/Files). 34: - Shopify Sync: MediaService orchestrates the complex Staged Uploads -> Create Media mutation flow. 35: - Security: appsscript.json requires explicit scopes for userinfo.email (Picker), drive (Files), and drive (Advanced Service). API Keys are stored in vars sheet, never hardcoded.

Media Handling Quirks

• Google Photos Picker:
  • The baseUrl returned by the Picker API is hidden inside mediaFile.baseUrl (not top-level).
  • Downloading this URL requires an Authorization header with the script's OAuth token, or it returns 403.
    1. Sanitize with Utilities.newBlob().
    2. Fallback to Advanced Drive Service (Drive.Files.create / v3) if standard creation fails.
• Video Previews:
• Video Previews:
  • Use document.createElement('video') to inject video tags. Avoid template strings (<video src="...">) as the parser sanitizes them aggressively.
  • Fallback to <iframe> only if native playback fails.
• Client-Side Syntax:
  • ES5 ONLY: Do not use class in client-side HTML files. The Apps Script sanitizer often fails to parse them. Use function constructors.

Troubleshooting

• Test Output: When running tests, use npm run test:log to capture full output to test_output.txt. This avoids terminal truncation and allows agents to read the full results without manual redirection.