stuff

server/src/routes/arcade.ts

@@ -0,0 +1,142 @@
+import { Hono } from 'hono'
+import { z } from 'zod'
+import { db, schema } from '../db/index.js'
+import { eq } from 'drizzle-orm'
+import { logger } from '../lib/logger.js'
+import {
+  formatArcadeChallenge,
+  parseArcadeResponse,
+  generateArcadeBotActions,
+  type ArcadeGameState,
+} from '../engine/arcade-bot.js'
+import { isMockBot } from '../engine/orchestrator.js'
+import { isPollingBot } from '../engine/poll-responses.js'
+import { isClassicBot } from '../engine/mock.js'
+
+export const arcadeRouter = new Hono()
+
+const gameStateSchema = z.object({
+  self: z.object({
+    hp: z.number(), x: z.number(), state: z.string(), grounded: z.boolean(),
+  }),
+  opponent: z.object({
+    hp: z.number(), x: z.number(), state: z.string(), grounded: z.boolean(),
+  }),
+  distance: z.number(),
+  timer: z.number(),
+  round: z.number(),
+  maxRounds: z.number(),
+  facingRight: z.boolean(),
+})
+
+const requestSchema = z.object({
+  botId: z.string(),
+  gameState: gameStateSchema,
+})
+
+// In-memory personality cache (mock bots)
+const personalityCache = new Map<string, string>()
+
+/**
+ * POST /api/arcade/bot-action
+ * Accepts game state, returns bot actions for arcade mode.
+ * Works with mock/classic bots (instant) and webhook bots (async).
+ */
+arcadeRouter.post('/bot-action', async (c) => {
+  const body = await c.req.json().catch(() => null)
+  const parsed = requestSchema.safeParse(body)
+  if (!parsed.success) {
+    return c.json({ error: { code: 'INVALID_INPUT', message: 'Invalid request body' } }, 400)
+  }
+
+  const { botId, gameState } = parsed.data
+
+  // Look up the bot
+  const bots = await db.select({
+    id: schema.bots.id,
+    name: schema.bots.name,
+    webhookUrl: schema.bots.webhookUrl,
+    eloRating: schema.bots.eloRating,
+  }).from(schema.bots).where(eq(schema.bots.id, botId)).limit(1)
+
+  if (bots.length === 0) {
+    return c.json({ error: { code: 'BOT_NOT_FOUND', message: 'Bot not found' } }, 404)
+  }
+
+  const bot = bots[0]
+
+  try {
+    let actions: string[]
+
+    if (isMockBot(bot.webhookUrl) || isClassicBot(bot.webhookUrl)) {
+      // Mock/classic bots: generate actions locally (instant, no network)
+      const personality = await getPersonality(bot.name)
+      actions = generateArcadeBotActions(gameState, personality)
+      logger.info('arcade', `${bot.name} mock actions: ${actions.join(',')}`)
+    } else if (isPollingBot(bot.webhookUrl)) {
+      // Polling bots: can't do real-time arcade via polling — use mock AI
+      const personality = await getPersonality(bot.name)
+      actions = generateArcadeBotActions(gameState, personality)
+    } else {
+      // Real webhook bot: forward game state as arcade challenge
+      const prompt = formatArcadeChallenge(gameState)
+      const controller = new AbortController()
+      const timeout = setTimeout(() => controller.abort(), 2000) // tight timeout for real-time
+
+      try {
+        const res = await fetch(bot.webhookUrl, {
+          method: 'POST',
+          headers: { 'Content-Type': 'application/json' },
+          body: JSON.stringify({
+            type: 'arcade',
+            challenge: prompt,
+            constraints: { timeout_ms: 2000, max_tokens: 100 },
+          }),
+          signal: controller.signal,
+        })
+        clearTimeout(timeout)
+
+        if (res.ok) {
+          const data = await res.json() as { answer?: string }
+          actions = parseArcadeResponse(data.answer ?? null)
+        } else {
+          actions = parseArcadeResponse(null)
+        }
+      } catch {
+        clearTimeout(timeout)
+        // Webhook failed — fall back to mock AI
+        actions = parseArcadeResponse(null)
+      }
+    }
+
+    return c.json({ actions })
+  } catch (err) {
+    logger.error('arcade', `bot-action error: ${err}`)
+    return c.json({ actions: ['move_forward', 'punch', 'block'] })
+  }
+})
+
+/** Get mock bot personality by name */
+async function getPersonality(botName: string): Promise<string> {
+  const cached = personalityCache.get(botName)
+  if (cached) return cached
+
+  // Import dynamically to avoid circular deps
+  const { MOCK_BOTS_LIST } = await import('../engine/mock.js').then(m => {
+    // Access the exported mock bots list
+    return { MOCK_BOTS_LIST: [] as { name: string; personality: string }[] }
+  }).catch(() => ({ MOCK_BOTS_LIST: [] }))
+
+  // Fallback personality based on bot name hash
+  const personalities = [
+    'aggressive', 'calculated', 'reckless', 'tactical', 'chill',
+    'confident', 'chaotic', 'zen', 'relentless', 'witty',
+  ]
+  let hash = 0
+  for (let i = 0; i < botName.length; i++) {
+    hash = ((hash << 5) - hash + botName.charCodeAt(i)) | 0
+  }
+  const personality = personalities[Math.abs(hash) % personalities.length]
+  personalityCache.set(botName, personality)
+  return personality
+}