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Your output must be a precise, syntactically correct JSON object that strictly adheres to the requested schema. Employ logical reasoning to infer connections and properties from the user's description. Avoid creative liberties that would violate the structural constraints. The objective is to produce a deterministic, machine-readable simulation blueprint, not a narrative.\";\n\nconst WORLD_BUILDER_PROMPT = `\nYou are SIM-ENGINE-BUILDER, an expert in creating virtual environments for simulation.\nBased on the user's natural language description, you will generate a complete WorldSpec JSON object.\nYou must infer a plausible 'domainType' from the description, choosing from: \"network\", \"industrial\", \"finance\", or \"generic\".\nThe JSON object must contain these exact keys:\n- name: A concise, human-readable name for the world (e.g., \"Corporate Subnet\").\n- description: A one-sentence summary of the world.\n- domainType: One of the four permitted types listed above.\n- entityIds: An array of unique string identifiers.\n- adjacency: A JSON object mapping each entityId to an array of its neighboring entityIds.\n- threshold: A numeric value that represents an anomaly cutoff, inferred logically from the context (e.g., high vulnerability, high pressure).\n\nYou MUST respond ONLY with a single, minified JSON object. Do not include any explanatory text or markdown formatting.\n${GENERATION_STYLE_GUIDE}\n`;\n\n// --- SENSOR HOOKS (Domain-Specific Logic) ---\n// Each sensor hook generates a deterministic payload for a given entity.\nconst SEED = Number(Deno.env.get(\"SEED\") ?? Date.now());\n\n// A Linear Congruential Generator for deterministic randomness.\nfunction seededRNG(id: EntityId): number {\n const numericId = Array.from(id).reduce(\n (sum, char) => sum + char.charCodeAt(0),\n 0,\n );\n const a = 1664525, c = 1013904223, m = 2 ** 32;\n const hash = (numericId + SEED) % m;\n return (hash * a + c) % m;\n}\n\nasync function genericSensorHook(id: EntityId, world: WorldSpec): Promise {\n const rng = seededRNG(id);\n const metric = (rng % 1000) / 10;\n return {\n id,\n metric,\n timestamp: new Date().toISOString(),\n rngValue: rng,\n };\n}\n\nasync function networkSensorHook(id: EntityId, world: WorldSpec): Promise {\n const rng = seededRNG(id);\n const score = (rng % 1000) / 10;\n return {\n metric: score,\n host: id,\n severity: score > world.threshold ? \"critical\" : \"low\",\n openPorts: [22, 80, 443].filter(() => (seededRNG(id + \"port\") % 10) > 5),\n };\n}\n\nasync function industrialSensorHook(\n id: EntityId,\n world: WorldSpec,\n): Promise {\n const rng = seededRNG(id);\n const pressure = 50 + (rng % 500) / 10;\n return {\n metric: pressure,\n valveId: id,\n status: pressure > world.threshold ? \"ALERT\" : \"nominal\",\n flowRate: (rng % 300) / 100,\n };\n}\n\nasync function financeSensorHook(id: EntityId, world: WorldSpec): Promise {\n const rng = seededRNG(id);\n const volatility = (rng % 500) / 100; // 0-5%\n return {\n metric: volatility,\n ticker: id,\n price: 100 + (rng % 2000) / 10,\n recommendation: volatility > world.threshold ? \"HOLD\" : \"BUY\",\n };\n}\n\nconst sensorHooks = {\n generic: genericSensorHook,\n network: networkSensorHook,\n industrial: industrialSensorHook,\n finance: financeSensorHook,\n};\n\n// --- MACRO IMPLEMENTATIONS ---\n// Macros are high-level routines the robot can invoke.\nasync function macroCoverAll(\n state: RobotState,\n world: WorldSpec,\n _args: any,\n): Promise {\n state.visited.clear();\n const order = [...world.entityIds].sort();\n const scanLog: string[] = [];\n\n for (const id of order) {\n state.current = id;\n state.visited.add(id);\n const sensorHook = sensorHooks[world.domainType] || sensorHooks.generic;\n const payload = await sensorHook(id, world);\n const payloadString = JSON.stringify(payload);\n scanLog.push(`SCAN ${id} -> ${payloadString}`);\n if (payload.metric > world.threshold) {\n state.anomalies.push(payload);\n scanLog.push(`ANOMALY DETECTED: ${payloadString}`);\n }\n }\n return scanLog;\n}\n\n// --- CORE SIMULATION ENGINE ---\nasync function actionHook(\n cmd: string,\n args: any,\n state: RobotState,\n world: WorldSpec,\n): Promise {\n state.log.push(`CMD: ${cmd} ${JSON.stringify(args)}`);\n\n switch (cmd) {\n case \"MOVE\": {\n const target: EntityId = args.targetId;\n if (!world.adjacency[state.current]?.includes(target)) {\n return {\n ok: false,\n error: `Invalid move from ${state.current} to ${target}`,\n };\n }\n state.current = target;\n state.visited.add(target);\n return { ok: true, payload: { current: state.current } };\n }\n case \"SCAN\": {\n const sensorHook = sensorHooks[world.domainType] || sensorHooks.generic;\n const payload = await sensorHook(state.current, world);\n if (payload.metric > world.threshold) {\n state.anomalies.push(payload);\n }\n return { ok: true, payload };\n }\n case \"REPORT\": {\n state.anomalies.push(args.payload);\n state.log.push(`REPORT: ${JSON.stringify(args.payload)}`);\n return { ok: true };\n }\n case \"MACRO\": {\n const macroFn = world.macros[args.name];\n if (!macroFn) return { ok: false, error: \"Unknown macro\" };\n const macroLog = await macroFn(state, world, args);\n return { ok: true, payload: { log: macroLog } };\n }\n case \"END_RUN\": {\n const summary = {\n totalVisited: state.visited.size,\n anomaliesFound: state.anomalies.length,\n log: state.log,\n anomalies: state.anomalies,\n };\n // Reset state for next run\n state.visited.clear();\n state.log = [];\n state.anomalies = [];\n state.current = world.entityIds[0];\n return { ok: true, payload: summary };\n }\n default:\n return { ok: false, error: \"Unsupported command\" };\n }\n}\n\n// --- HTTP API (Hono Router) ---\nconst app = new Hono();\n\n// Endpoint to generate a new world using OpenAI\napp.post(\"/build-world\", async (c) => {\n try {\n const { description, sessionId } = await c.req.json();\n if (!description || !sessionId) {\n return c.json({\n ok: false,\n error: \"Description and sessionId are required\",\n }, 400);\n }\n\n const openai = new OpenAI();\n const completion = await openai.chat.completions.create({\n model: \"gpt-4o\",\n messages: [\n { role: \"system\", content: WORLD_BUILDER_PROMPT },\n { role: \"user\", content: `Description: \"${description}\"` },\n ],\n response_format: { type: \"json_object\" },\n });\n\n const worldData = JSON.parse(completion.choices[0].message.content);\n\n // Validate the AI-generated structure\n if (\n !worldData.name || !worldData.entityIds || !worldData.adjacency ||\n worldData.threshold === undefined\n ) {\n throw new Error(\"AI returned an invalid WorldSpec structure.\");\n }\n\n const world: WorldSpec = {\n ...worldData,\n macros: { COVER_ALL: macroCoverAll },\n };\n\n worldSpecs.set(sessionId, world);\n robotStates.set(sessionId, {\n current: world.entityIds[0],\n visited: new Set(),\n log: [],\n anomalies: [],\n });\n\n return c.json({ ok: true, payload: world });\n } catch (error) {\n console.error(\"World Build Error:\", error);\n return c.json({ ok: false, error: error.message }, 500);\n }\n});\n\n// Main command endpoint for the robot\napp.post(\"/command\", async (c) => {\n const { cmd, args } = await c.req.json();\n const sessionId = c.req.headers.get(\"x-session-id\");\n\n if (!sessionId) {\n return c.json({ ok: false, error: \"x-session-id header is required\" }, 400);\n }\n\n const world = worldSpecs.get(sessionId);\n const state = robotStates.get(sessionId);\n\n if (!world || !state) {\n return c.json({\n ok: false,\n error: \"No active world for this session. Use /build-world first.\",\n }, 404);\n }\n\n const result = await actionHook(cmd, args, state, world);\n return c.json(result);\n});\n\n// Serve the HTML frontend\napp.get(\"/\", (c) => {\n const sourceUrl = new URL(c.req.url).origin;\n return c.html(generateHtml(sourceUrl));\n});\n\n// --- HTML & FRONTEND ---\nfunction generateHtml(sourceUrl: string) {\n return `\n\n\n \n \n SIM-ENGINE Controller\n \n \n \n\n\n\n

SIM-ENGINE

1. Build World

\n Describe a world to simulate:\n \n

\n \n

2. World Info

3. Robot Controller

\n Command:\n \n \n \n

\n Arguments (JSON):\n \n

\n \n

Simulation Log

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