**Generate technical front-elevation wardrobe/cupboard drawings from email prompts.** This automation monitors Gmail for emails with the subject **"decisional_drawing"** and generates a scaled technical drawing image based on the prompt in the email body. **Step 1 — Receive and extract the prompt** When triggered by a new Gmail message, extract the full email body text as the drawing prompt. Note the sender's email address and the thread ID for replying. **Step 2 — Validate the prompt** Use Claude to analyze whether the prompt contains enough information to generate a drawing. A valid prompt must include: - At least one wall with height and width dimensions - At least one cupboard/wardrobe with dimensions - Internal layout details (drawers, shelves, hanging spaces, open spaces) If the prompt is **missing critical dimensions or is too ambiguous** to produce an accurate drawing, reply to the email thread using explaining what information is missing and asking the sender to resubmit with the required details. **Stop processing** — do not generate a drawing. **Step 2b — Send acknowledgment reply** If the prompt is valid, immediately reply to the email thread using with a brief message: "We've received your drawing request and are working on it. You'll receive the completed drawing shortly." **Step 3 — Build a detailed drawing prompt and generate image with Gemini** Use Claude to convert the natural language description into a highly detailed image generation prompt for Gemini 2.5 Flash. The prompt must describe a **front-elevation technical drawing** of the wardrobe/cupboard layout with: - Each wall shown side by side as a front-elevation view - **Color-coded zones**: blue for drawers, pink/red for hanging space, white for open space, green for shelves, light orange for corner cupboards - Every zone labeled with its name (e.g., "Drawer 1", "Hanging 1", "Open Space 1") - **All dimensions shown in mm** — wall width/height, cupboard widths, zone heights, partition positions - A **legend** explaining the color coding - Clean lines, proper borders, and a professional technical drawing style Then call the **Gemini 2.5 Flash API** directly via HTTP (using the API key stored as parameter **[[PARAM:GLOBAL.gemini_api_key]]**) to generate the image. The API endpoint is `https://generativelanguage.googleapis.com/v1beta/models/gemini-2.0-flash-exp:generateContent`. Send the drawing prompt with `responseModalities: ["TEXT", "IMAGE"]`. The response contains base64-encoded image data — decode it and save as `/tmp/outputs/drawing.png`. If the image generation fails or returns no image data, reply to the email explaining the drawing could not be generated and ask the sender to retry. **Stop processing.** **Step 5 — Upload drawing to Google Drive** Upload the saved PNG to S3 to get a temporary URL. Then create a new folder in Google Drive named with the current date and sender info (e.g., "Drawing - 2026-03-21 - sender@email.com") using . Then upload the drawing PNG into that new folder using with the S3 presigned URL as the source. Set sharing to "anyone with the link can view" using . If the PNG file was not generated or saved, reply to the email explaining the drawing could not be generated and ask the sender to retry. **Step 6 — Reply with the drawing** Reply to the original email thread using with: - A brief message confirming the drawing was generated - The Google Drive link to view/download the drawing - A note listing any assumptions made during interpretation

Engineering Drawing Generator

Engineering Drawing Generator

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