\n\n \n\n`;\n}\n\n// --- BACKEND API ROUTING (Hono) ---\nconst app = new Hono();\n\n// Add CORS middleware\napp.use(\"*\", cors());\n\n/**\n * GET /\n * Serves the main HTML page with the React application.\n */\napp.get(\"/\", (c) => {\n const url = new URL(c.req.url);\n // Ensure the source URL passed to the client has a trailing slash\n // to prevent incorrect relative path resolution by the browser.\n const sourceUrl = `https://${url.host}${url.pathname}`.replace(/\\/?$/, \"/\");\n return c.html(generateHtml(sourceUrl));\n});\n\n/**\n * POST /interpret\n * Receives a gesture and returns an AI-generated interpretation.\n */\napp.post(\"/interpret\", async (c) => {\n let openai: OpenAI;\n try {\n // Securely initialize OpenAI with the environment variable.\n const apiKey = Deno.env.get(\"OPENAI_API_KEY\");\n if (!apiKey) {\n throw new Error(\"OPENAI_API_KEY environment variable is not set.\");\n }\n openai = new OpenAI({ apiKey: apiKey });\n } catch (e) {\n console.error(\"Failed to initialize OpenAI:\", e.message);\n return c.json({ error: \"OpenAI API key is not configured.\" }, 500);\n }\n\n try {\n const { gesture } = await c.req.json();\n\n if (!gesture || typeof gesture !== \"string\") {\n return c.json({ error: \"Invalid 'gesture' parameter.\" }, 400);\n }\n\n const completion = await openai.chat.completions.create({\n model: \"gpt-4o-mini\",\n messages: [\n { role: \"system\", content: INTERPRET_GESTURE_PROMPT },\n { role: \"user\", content: `The gesture is: \"${gesture}\"` },\n ],\n response_format: { type: \"json_object\" },\n });\n\n const aiResponseContent = completion.choices[0].message.content;\n\n // Treat AI response as untrusted: attempt to parse and validate.\n let parsedResponse;\n try {\n parsedResponse = JSON.parse(aiResponseContent);\n } catch (e) {\n console.error(\"Failed to parse AI JSON response:\", aiResponseContent);\n throw new Error(\"AI returned malformed data.\");\n }\n\n // Sanitize by only returning the fields we expect.\n if (!parsedResponse.dialogue || !parsedResponse.reason) {\n console.error(\"AI response missing required fields:\", parsedResponse);\n throw new Error(\"AI response did not contain 'dialogue' and 'reason'.\");\n }\n\n // Log the AI's justification for debugging and transparency.\n console.log(`Gesture: ${gesture}, Reason: ${parsedResponse.reason}`);\n\n return c.json({\n dialogue: parsedResponse.dialogue,\n });\n } catch (error) {\n console.error(\"Error in /interpret:\", error.message);\n return c.json({ error: \"Failed to process AI interpretation.\" }, 500);\n }\n});\n\nexport default app.fetch;","deleted","label",[99],"permalink","https://www.val.town/x/volt/kabuki/code/main.ts","extension","actionData","errors"]