Chroma Echo

Describe a theme, and the AI will craft a unique visual and rhythmic experience for you to control with your hands.

\n \n \n

Generating

AI is composing your experience...

Score: 0

\n\n\n\n`;\n}\n\n// --- BACKEND LOGIC (VAL TOWN HTTP ENDPOINT) ---\nexport default async function (req: Request) {\n const url = new URL(req.url);\n const action = url.searchParams.get(\"action\");\n\n if (req.method === \"POST\" && action === \"generatePattern\") {\n try {\n const openai = new OpenAI({ apiKey: Deno.env.get(\"openai\") });\n const body = await req.json();\n const theme = body.theme;\n\n if (!theme || typeof theme !== \"string\" || theme.trim().length === 0) {\n return new Response(\n JSON.stringify({ error: \"A valid theme is required.\" }),\n {\n status: 400,\n headers: { \"Content-Type\": \"application/json\" },\n },\n );\n }\n\n const completion = await openai.chat.completions.create({\n model: \"gpt-4o\",\n messages: [\n { role: \"system\", content: PATTERN_GENERATOR_PROMPT },\n {\n role: \"user\",\n content: `Generate a pattern for the theme: \"${theme}\"`,\n },\n ],\n response_format: { type: \"json_object\" },\n });\n\n const rawContent = completion.choices[0].message.content;\n const parsedContent = extractJson(rawContent);\n\n if (!parsedContent) {\n throw new Error(\n \"AI returned a response that could not be parsed into valid JSON.\",\n );\n }\n\n // Basic validation of the AI's output\n if (\n !parsedContent.theme || !Array.isArray(parsedContent.path) ||\n !parsedContent.reason\n ) {\n throw new Error(\"AI returned an improperly structured object.\");\n }\n\n return new Response(JSON.stringify(parsedContent), {\n headers: { \"Content-Type\": \"application/json\" },\n });\n } catch (error) {\n console.error(\"Chroma Echo AI Error:\", error);\n return new Response(\n JSON.stringify({\n error: error.message || \"An unknown error occurred on the server.\",\n }),\n {\n status: 500,\n headers: { \"Content-Type\": \"application/json\" },\n },\n );\n }\n }\n\n const sourceUrl = `https://${url.hostname}${url.pathname}`;\n return new Response(generateHtml(sourceUrl), {\n headers: { \"Content-Type\": \"text/html\" },\n });\n}","deleted","label",[98],"permalink","https://www.val.town/x/volt/light/code/main.ts","extension","actionData","errors"]