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- real time messaging app","imageUrl","5f90569c-410b-4eea-949a-4b2f286b65eb","pinnedFileId","pinPreview","pinMigrated","screenshotVersion","likeCount","019d6f91-35be-735f-8e10-e7e6f276229d","tursoName","6aba104233a811f1999442b51c65c3df","tursoHostname","6aba104233a811f1999442b51c65c3df-val-town.aws-us-east-2.turso.io","tursoMeasuredAt",["D",1775699428497],"pinned","userPerm","r","valPerm","blobPerm","rw","emailPerm","sqlitePerm","projectPerm","telemetryPerm",{"_98":99,"_141":77},"profileImageUrl","org",{"_98":99,"_144":77,"_12":117,"_145":146},"avatar","tier","free","branch",{"_149":150,"_100":46,"_106":151,"_152":107,"_153":154,"_155":156,"_157":113,"_158":159,"_160":161,"_162":101,"_163":99},"version",4,"6ac14434-33a8-11f1-9994-42b51c65c3df","projectId","forkedBranchId","d947641e-339f-11f1-80aa-42b51c65c3df","forkedBranchVersion",6,"forkedProjectPrivacy","forkedProjectId","d9411c58-339f-11f1-80aa-42b51c65c3df","forkedProjectOrgId","019d6f5a-063f-744d-9228-750d158a3394","projectName","userHandle","isOwned","file",{"_106":167,"_100":103,"_168":169,"_170":-5,"_171":151,"_172":173,"_174":175,"_108":176,"_149":33,"_177":178,"_179":180,"_181":20,"_182":-5,"_102":183},"6ad2ef72-33a8-11f1-9994-42b51c65c3df","fileId","019d6f92-d2cb-70c3-aff7-da951a46fcdf","parentId","branchId","branchVersion",1,"latest",true,["D",1775693386250],"fileType","http","content","import { Hono } from \"npm:hono@4\";\nimport { getCookie, setCookie, deleteCookie } from \"npm:hono/cookie\";\nimport { blob } from \"https://esm.town/v/std/blob\";\nimport { serveFile, parseVal } from \"https://esm.town/v/std/utils/index.ts\";\nimport { runMigrations } from \"./database/migrations.ts\";\nimport {\n createUser, getUserByUsername, getUserByEmail, getUserById,\n createSession, getSession, deleteSession,\n createApiToken, getApiToken, deleteApiToken,\n createRoom, getRoomById, getRoomsForUser, getAllRooms, getRoomMembers,\n addRoomMember, removeRoomMember, isRoomMember, inviteToRoom,\n deleteRoom,\n createMessage, getMessages, editMessage, searchMessages, getMessageById, deleteMessage, clearRoom,\n addReaction, removeReaction, getReactionsForRoom,\n setTyping, clearTyping, getTyping,\n blockUser, unblockUser, getBlockedUsers,\n queueMention, getPublicUsers, getAllUsers,\n setGhostMode, banUser, unbanUser, muteUser, unmuteUser,\n updateUserAvatar, updateUserPassword, deleteUser,\n} from \"./database/queries.ts\";\nimport { hashPassword, verifyPassword, generateToken } from \"./shared/auth.ts\";\nimport { sendEmail, mentionEmailHtml, recoveryEmailHtml } from \"./shared/email.ts\";\nimport { ADMIN_USERNAME, ADMIN_PASSWORD, MAX_FILE_SIZE, MAX_AVATAR_SIZE, MISTRAL_API_KEY, CODESTRAL_API_KEY, GROQ_API_KEY, GROQ_ADMIN_MODEL } from \"./shared/types.ts\";\n\nawait runMigrations();\n\nconst adminExists = await getUserByUsername(ADMIN_USERNAME);\nif (!adminExists) {\n const hash = await hashPassword(ADMIN_PASSWORD);\n await createUser(ADMIN_USERNAME, \"admin@huddle.local\", hash, ADMIN_PASSWORD);\n}\n\nconst app = new Hono();\napp.onError((err) => Promise.reject(err));\n\nasync function getSessionUser(c: any) {\n const sid = getCookie(c, \"hid\");\n if (sid) {\n const session = await getSession(sid);\n if (session) {\n const user = await getUserById(Number(session.user_id));\n if (user) return await checkExpiry(user);\n }\n }\n const auth = c.req.header(\"Authorization\");\n if (auth?.startsWith(\"Bearer \")) {\n const token = auth.slice(7);\n const rec = await getApiToken(token);\n if (rec) {\n const user = await getUserById(Number(rec.user_id));\n if (user) return await checkExpiry(user);\n }\n }\n return null;\n}\n\nasync function checkExpiry(user: any) {\n if (user.is_banned && user.ban_expires_at && new Date(user.ban_expires_at as string) < new Date()) {\n await unbanUser(Number(user.id));\n user.is_banned = 0;\n }\n if (user.is_muted && user.mute_expires_at && new Date(user.mute_expires_at as string) < new Date()) {\n await unmuteUser(Number(user.id));\n user.is_muted = 0;\n }\n if (user.is_banned) {\n const isPerm = !user.ban_expires_at;\n const isActive = isPerm || new Date(user.ban_expires_at as string) > new Date();\n if (isActive) return null;\n }\n return user;\n}\n\nfunction isAdmin(user: any) {\n return user && user.username.toLowerCase() === ADMIN_USERNAME.toLowerCase();\n}\n\nfunction userPayload(user: any) {\n return {\n id: Number(user.id),\n username: user.username,\n email: user.email,\n isAdmin: isAdmin(user),\n ghost_mode: user.ghost_mode,\n avatar_blob_key: user.avatar_blob_key,\n };\n}\n\nconst CORS_HEADERS = {\n \"Access-Control-Allow-Origin\": \"*\",\n \"Access-Control-Allow-Methods\": \"GET,POST,PUT,PATCH,DELETE,OPTIONS\",\n \"Access-Control-Allow-Headers\": \"Content-Type,Authorization\",\n \"Access-Control-Max-Age\": \"86400\",\n};\n\napp.options(\"*\", (c) => new Response(null, { status: 204, headers: CORS_HEADERS }));\n\napp.use(\"*\", async (c, next) => {\n await next();\n for (const [k, v] of Object.entries(CORS_HEADERS)) {\n c.res.headers.set(k, v);\n }\n});\n\napp.get(\"/\", (c) => serveFile(\"/frontend/index.html\", import.meta.url));\napp.get(\"/bookmarklet\", (c) => serveFile(\"/frontend/bookmarklet.html\", import.meta.url));\napp.get(\"/frontend/*\", (c) => serveFile(c.req.path, import.meta.url));\napp.get(\"/source\", (c) => c.redirect(parseVal().links.self.val));\n\napp.post(\"/api/signup\", async (c) => {\n const { username, email, password } = await c.req.json();\n if (!username || !email || !password) return c.json({ error: \"All fields required\" }, 400);\n if (password.length < 6) return c.json({ error: \"Password must be at least 6 characters\" }, 400);\n if (!/^[^\\s@]+@[^\\s@]+\\.[^\\s@]+$/.test(email)) return c.json({ error: \"Invalid email address\" }, 400);\n if (!/^[a-zA-Z0-9_]{3,20}$/.test(username)) return c.json({ error: \"Username: 3–20 chars, letters/numbers/_ only\" }, 400);\n const existingUser = await getUserByUsername(username);\n if (existingUser) return c.json({ error: \"Username already taken\" }, 409);\n const existingEmail = await getUserByEmail(email);\n if (existingEmail) return c.json({ error: \"Email already registered\" }, 409);\n const hash = await hashPassword(password);\n const userId = await createUser(username, email, hash, password);\n const sid = generateToken();\n await createSession(sid, Number(userId));\n const apiToken = generateToken();\n await createApiToken(apiToken, Number(userId));\n setCookie(c, \"hid\", sid, { httpOnly: true, sameSite: \"Lax\", maxAge: 60 * 60 * 24 * 30 });\n return c.json({ ok: true, apiToken, user: { id: Number(userId), username, email, isAdmin: isAdmin({ username }) } });\n});\n\napp.post(\"/api/login\", async (c) => {\n const { username, password } = await c.req.json();\n if (!username || !password) return c.json({ error: \"Username and password required\" }, 400);\n const user = await getUserByUsername(username);\n if (!user) return c.json({ error: \"Invalid credentials\" }, 401);\n if (user.is_banned) {\n const isPerm = !user.ban_expires_at;\n const isActive = isPerm || new Date(user.ban_expires_at as string) > new Date();\n if (isActive) {\n const msg = user.ban_message ? `\\n\\n${user.ban_message}` : \"\";\n const exp = isPerm ? \" permanently\" : ` until ${new Date(user.ban_expires_at as string).toLocaleString()}`;\n return c.json({ error: `Your account has been banned${exp}.${msg}` }, 403);\n }\n }\n const ok = await verifyPassword(password as string, user.password_hash as string);\n if (!ok) return c.json({ error: \"Invalid credentials\" }, 401);\n const sid = generateToken();\n await createSession(sid, Number(user.id));\n const apiToken = generateToken();\n await createApiToken(apiToken, Number(user.id));\n setCookie(c, \"hid\", sid, { httpOnly: true, sameSite: \"Lax\", maxAge: 60 * 60 * 24 * 30 });\n return c.json({ ok: true, apiToken, user: userPayload(user) });\n});\n\napp.post(\"/api/logout\", async (c) => {\n const sid = getCookie(c, \"hid\");\n if (sid) await deleteSession(sid);\n const auth = c.req.header(\"Authorization\");\n if (auth?.startsWith(\"Bearer \")) await deleteApiToken(auth.slice(7));\n deleteCookie(c, \"hid\");\n return c.json({ ok: true });\n});\n\napp.get(\"/api/me\", async (c) => {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n return c.json({ user: userPayload(user) });\n});\n\napp.post(\"/api/recover\", async (c) => {\n const { identifier } = await c.req.json();\n if (!identifier) return c.json({ error: \"Email or username required\" }, 400);\n const user = identifier.includes(\"@\") ? await getUserByEmail(identifier) : await getUserByUsername(identifier);\n if (!user) return c.json({ ok: true });\n const plain = user.password_plain as string | null;\n if (!plain) {\n await sendEmail(user.email as string, \"Huddle – Password Recovery\", recoveryEmailHtml(\"[Password recovery not available — please contact admin]\"));\n } else {\n await sendEmail(user.email as string, \"Huddle – Password Recovery\", recoveryEmailHtml(plain));\n }\n return c.json({ ok: true });\n});\n\napp.get(\"/api/users\", async (c) => {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n if (isAdmin(user)) {\n const users = await getAllUsers();\n return c.json({ users });\n }\n const users = await getPublicUsers();\n return c.json({ users });\n});\n\napp.delete(\"/api/users/:id\", async (c) => {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n const targetId = Number(c.req.param(\"id\"));\n if (Number(user.id) !== targetId && !isAdmin(user)) return c.json({ error: \"Forbidden\" }, 403);\n const target = await getUserById(targetId);\n if (!target) return c.json({ error: \"User not found\" }, 404);\n if (isAdmin({ username: target.username })) return c.json({ error: \"Cannot delete admin account\" }, 403);\n try {\n await deleteUser(targetId);\n } catch (e: any) {\n console.error(\"deleteUser failed:\", e);\n return c.json({ error: e?.message ?? \"Failed to delete user\" }, 500);\n }\n return c.json({ ok: true });\n});\n\napp.post(\"/api/users/ghost\", async (c) => {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n const { ghost } = await c.req.json();\n await setGhostMode(Number(user.id), ghost);\n return c.json({ ok: true });\n});\n\napp.post(\"/api/users/:id/ban\", async (c) => {\n const user = await getSessionUser(c);\n if (!user || !isAdmin(user)) return c.json({ error: \"Forbidden\" }, 403);\n const targetId = Number(c.req.param(\"id\"));\n const target = await getUserById(targetId);\n if (target && isAdmin({ username: target.username })) return c.json({ error: \"Cannot ban admin account\" }, 403);\n const { duration, message } = await c.req.json();\n const expiresAt = duration ? new Date(Date.now() + duration * 3600000).toISOString() : null;\n await banUser(targetId, expiresAt, message ?? null);\n return c.json({ ok: true });\n});\n\napp.post(\"/api/users/:id/unban\", async (c) => {\n const user = await getSessionUser(c);\n if (!user || !isAdmin(user)) return c.json({ error: \"Forbidden\" }, 403);\n await unbanUser(Number(c.req.param(\"id\")));\n return c.json({ ok: true });\n});\n\napp.post(\"/api/users/:id/mute\", async (c) => {\n const user = await getSessionUser(c);\n if (!user || !isAdmin(user)) return c.json({ error: \"Forbidden\" }, 403);\n const targetId = Number(c.req.param(\"id\"));\n const target = await getUserById(targetId);\n if (target && isAdmin({ username: target.username })) return c.json({ error: \"Cannot mute admin account\" }, 403);\n const { duration } = await c.req.json();\n const expiresAt = new Date(Date.now() + (duration || 30) * 60000).toISOString();\n await muteUser(targetId, expiresAt);\n return c.json({ ok: true });\n});\n\napp.post(\"/api/users/:id/unmute\", async (c) => {\n const user = await getSessionUser(c);\n if (!user || !isAdmin(user)) return c.json({ error: \"Forbidden\" }, 403);\n await unmuteUser(Number(c.req.param(\"id\")));\n return c.json({ ok: true });\n});\n\napp.get(\"/api/users/blocked\", async (c) => {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n const blocked = await getBlockedUsers(Number(user.id));\n return c.json({ blocked });\n});\n\napp.post(\"/api/users/:id/block\", async (c) => {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n const blockTargetId = Number(c.req.param(\"id\"));\n const blockTarget = await getUserById(blockTargetId);\n if (blockTarget && isAdmin({ username: blockTarget.username })) return c.json({ error: \"Cannot block admin\" }, 403);\n await blockUser(Number(user.id), blockTargetId);\n return c.json({ ok: true });\n});\n\napp.post(\"/api/users/:id/unblock\", async (c) => {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n await unblockUser(Number(user.id), Number(c.req.param(\"id\")));\n return c.json({ ok: true });\n});\n\napp.post(\"/api/avatar\", async (c) => {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n const formData = await c.req.formData();\n const file = formData.get(\"avatar\") as File | null;\n if (!file) return c.json({ error: \"No file\" }, 400);\n if (file.size > MAX_AVATAR_SIZE) return c.json({ error: \"Avatar max size is 100 KB\" }, 400);\n const key = `huddle_avatar_${user.id}_${Date.now()}`;\n const buf = await file.arrayBuffer();\n await blob.set(key, buf);\n await updateUserAvatar(Number(user.id), key);\n return c.json({ ok: true, key });\n});\n\napp.get(\"/api/blob/:key\", async (c) => {\n const key = c.req.param(\"key\");\n const isAvatar = key.startsWith(\"huddle_avatar_\");\n if (!isAvatar) {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n }\n let buf: ArrayBuffer;\n try {\n const resp = await blob.get(key);\n buf = await resp.arrayBuffer();\n } catch {\n return c.json({ error: \"File not found or has expired\" }, 404);\n }\n const lk = key.toLowerCase();\n const mimeMap: Record = {\n \".jpg\": \"image/jpeg\", \".jpeg\": \"image/jpeg\", \".png\": \"image/png\",\n \".gif\": \"image/gif\", \".webp\": \"image/webp\", \".svg\": \"image/svg+xml\",\n \".pdf\": \"application/pdf\", \".txt\": \"text/plain; charset=utf-8\",\n \".md\": \"text/plain; charset=utf-8\", \".csv\": \"text/csv; charset=utf-8\",\n \".mp4\": \"video/mp4\", \".mp3\": \"audio/mpeg\", \".wav\": \"audio/wav\",\n \".zip\": \"application/zip\", \".json\": \"application/json\",\n \".html\": \"text/html; charset=utf-8\", \".htm\": \"text/html; charset=utf-8\",\n \".js\": \"text/javascript\", \".ts\": \"text/plain; charset=utf-8\", \".css\": \"text/css\",\n \".docx\": \"application/vnd.openxmlformats-officedocument.wordprocessingml.document\",\n \".xlsx\": \"application/vnd.openxmlformats-officedocument.spreadsheetml.sheet\",\n };\n let ct = \"application/octet-stream\";\n for (const [ext, mime] of Object.entries(mimeMap)) {\n if (lk.endsWith(ext)) { ct = mime; break; }\n }\n if (ct === \"application/octet-stream\") {\n const bytes = new Uint8Array(buf).subarray(0, 4);\n if (bytes[0] === 0xFF && bytes[1] === 0xD8) ct = \"image/jpeg\";\n else if (bytes[0] === 0x89 && bytes[1] === 0x50) ct = \"image/png\";\n else if (bytes[0] === 0x47 && bytes[1] === 0x49) ct = \"image/gif\";\n else if (bytes[0] === 0x52 && bytes[1] === 0x49) ct = \"image/webp\";\n }\n return new Response(buf, {\n headers: {\n \"Content-Type\": ct,\n \"Cache-Control\": isAvatar ? \"public, max-age=86400\" : \"private, max-age=3600\",\n \"Access-Control-Allow-Origin\": \"*\",\n },\n });\n});\n\napp.get(\"/api/rooms\", async (c) => {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n // Admin sees only rooms they are actually a member of (or world chat), just like regular users\n const rooms = await getRoomsForUser(Number(user.id));\n return c.json({ rooms });\n});\n\n// Admin-only: get ALL rooms (for admin panel rooms tab)\napp.get(\"/api/admin/rooms\", async (c) => {\n const user = await getSessionUser(c);\n if (!user || !isAdmin(user)) return c.json({ error: \"Forbidden\" }, 403);\n const rooms = await getAllRooms();\n return c.json({ rooms });\n});\n\napp.post(\"/api/rooms\", async (c) => {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n const { name } = await c.req.json();\n if (!name?.trim()) return c.json({ error: \"Room name required\" }, 400);\n const roomId = await createRoom(name.trim(), Number(user.id));\n return c.json({ ok: true, roomId });\n});\n\napp.delete(\"/api/rooms/:id\", async (c) => {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n const roomId = Number(c.req.param(\"id\"));\n const room = await getRoomById(roomId);\n if (!room) return c.json({ error: \"Room not found\" }, 404);\n if (room.type === \"world\") return c.json({ error: \"Cannot delete World Chat\" }, 403);\n if (!isAdmin(user) && Number(room.created_by) !== Number(user.id)) return c.json({ error: \"Only the creator can delete this room\" }, 403);\n await deleteRoom(roomId);\n return c.json({ ok: true });\n});\n\napp.get(\"/api/rooms/:id/members\", async (c) => {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n const roomId = Number(c.req.param(\"id\"));\n const room = await getRoomById(roomId);\n if (!room) return c.json({ error: \"Room not found\" }, 404);\n const adminAndMember = isAdmin(user) && (await isRoomMember(roomId, Number(user.id)));\n if (room.type !== \"world\" && !adminAndMember && !isAdmin(user) && !(await isRoomMember(roomId, Number(user.id)))) {\n return c.json({ error: \"Forbidden\" }, 403);\n }\n let members = await getRoomMembers(roomId);\n // If admin is viewing a room they weren't actually invited to, exclude themselves from member list\n if (isAdmin(user) && !(await isRoomMember(roomId, Number(user.id)))) {\n members = (members as any[]).filter((m: any) => m.username?.toLowerCase() !== ADMIN_USERNAME.toLowerCase());\n }\n return c.json({ members });\n});\n\napp.post(\"/api/rooms/:id/invite\", async (c) => {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n const roomId = Number(c.req.param(\"id\"));\n const { username } = await c.req.json();\n if (!username) return c.json({ error: \"Username required\" }, 400);\n const room = await getRoomById(roomId);\n if (!room) return c.json({ error: \"Room not found\" }, 404);\n if (!isAdmin(user) && Number(room.created_by) !== Number(user.id)) {\n const members = await getRoomMembers(roomId);\n const caller = members.find((m: any) => Number(m.id) === Number(user.id));\n if (!caller || caller.role !== \"owner\") return c.json({ error: \"Only the room owner can invite\" }, 403);\n }\n const target = await getUserByUsername(username);\n if (!target) return c.json({ error: \"User not found\" }, 404);\n await inviteToRoom(roomId, Number(target.id), Number(user.id));\n return c.json({ ok: true });\n});\n\napp.post(\"/api/rooms/:id/kick\", async (c) => {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n const roomId = Number(c.req.param(\"id\"));\n const { userId } = await c.req.json();\n const room = await getRoomById(roomId);\n if (!room) return c.json({ error: \"Room not found\" }, 404);\n if (!isAdmin(user) && Number(room.created_by) !== Number(user.id)) {\n const members = await getRoomMembers(roomId);\n const caller = members.find((m: any) => Number(m.id) === Number(user.id));\n if (!caller || caller.role !== \"owner\") return c.json({ error: \"Forbidden\" }, 403);\n }\n const kickTarget = await getUserById(Number(userId));\n if (kickTarget && isAdmin({ username: kickTarget.username })) return c.json({ error: \"Cannot kick admin\" }, 403);\n await removeRoomMember(roomId, Number(userId));\n return c.json({ ok: true });\n});\n\napp.post(\"/api/rooms/:id/leave\", async (c) => {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n const roomId = Number(c.req.param(\"id\"));\n await removeRoomMember(roomId, Number(user.id));\n return c.json({ ok: true });\n});\n\napp.get(\"/api/rooms/:id/messages\", async (c) => {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n const roomId = Number(c.req.param(\"id\"));\n const room = await getRoomById(roomId);\n if (!room) return c.json({ error: \"Room not found\" }, 404);\n if (room.type !== \"world\" && !isAdmin(user) && !(await isRoomMember(roomId, Number(user.id)))) {\n return c.json({ error: \"Forbidden\" }, 403);\n }\n const since = c.req.query(\"since\") ? Number(c.req.query(\"since\")) : undefined;\n const msgs = await getMessages(roomId, since);\n const blocked = await getBlockedUsers(Number(user.id));\n const filtered = isAdmin(user) ? msgs : msgs.filter((m: any) => !blocked.includes(Number(m.user_id)));\n let reactions: any[] = [];\n if (!since) reactions = await getReactionsForRoom(roomId);\n return c.json({ messages: filtered, reactions });\n});\n\napp.get(\"/api/rooms/:id/poll\", async (c) => {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n const roomId = Number(c.req.param(\"id\"));\n const room = await getRoomById(roomId);\n if (!room) return c.json({ error: \"Room not found\" }, 404);\n if (room.type !== \"world\" && !isAdmin(user) && !(await isRoomMember(roomId, Number(user.id)))) {\n return c.json({ error: \"Forbidden\" }, 403);\n }\n const since = Number(c.req.query(\"since\") ?? 0);\n const blocked = await getBlockedUsers(Number(user.id));\n // Poll with 2s sleep between checks to reduce DB pressure.\n // Max 10 iterations × 2s = 20s max hold time.\n for (let i = 0; i < 10; i++) {\n await new Promise((r) => setTimeout(r, 2000));\n const msgs = await getMessages(roomId, since);\n const typing = await getTyping(roomId);\n const typingOthers = typing.filter((u: string) => u !== (user.username as string));\n if (msgs.length > 0) {\n const filtered = isAdmin(user) ? msgs : msgs.filter((m: any) => !blocked.includes(Number(m.user_id)));\n return c.json({ messages: filtered, typing: typingOthers });\n }\n if (typingOthers.length > 0) {\n return c.json({ messages: [], typing: typingOthers });\n }\n }\n return c.json({ messages: [], typing: [] });\n});\n\napp.post(\"/api/rooms/:id/messages\", async (c) => {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n if (user.is_muted && user.mute_expires_at && new Date(user.mute_expires_at as string) > new Date()) {\n return c.json({ error: \"You are currently muted\" }, 403);\n }\n const roomId = Number(c.req.param(\"id\"));\n const room = await getRoomById(roomId);\n if (!room) return c.json({ error: \"Room not found\" }, 404);\n if (room.type !== \"world\" && !isAdmin(user) && !(await isRoomMember(roomId, Number(user.id)))) {\n return c.json({ error: \"Forbidden\" }, 403);\n }\n const { content, reply_to_id } = await c.req.json();\n if (!content?.trim()) return c.json({ error: \"Message cannot be empty\" }, 400);\n if (content.length > 2000) return c.json({ error: \"Message too long (max 2000 chars)\" }, 400);\n const msgId = await createMessage(roomId, Number(user.id), content.trim(), undefined, undefined, undefined, reply_to_id ? Number(reply_to_id) : undefined);\n const mentionRegex = /@([a-zA-Z0-9_]+)/g;\n let match;\n while ((match = mentionRegex.exec(content)) !== null) {\n const mentioned = await getUserByUsername(match[1]);\n if (mentioned && Number(mentioned.id) !== Number(user.id)) {\n await queueMention(Number(mentioned.id), user.username as string, room.name as string);\n }\n }\n const createdMsg = await getMessageById(Number(msgId));\n return c.json({ ok: true, message: createdMsg ? { ...createdMsg, id: Number((createdMsg as any).id) } : null });\n});\n\napp.post(\"/api/rooms/:id/upload\", async (c) => {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n if (user.is_muted && user.mute_expires_at && new Date(user.mute_expires_at as string) > new Date()) {\n return c.json({ error: \"You are currently muted\" }, 403);\n }\n const roomId = Number(c.req.param(\"id\"));\n const room = await getRoomById(roomId);\n if (!room) return c.json({ error: \"Room not found\" }, 404);\n if (room.type !== \"world\" && !isAdmin(user) && !(await isRoomMember(roomId, Number(user.id)))) {\n return c.json({ error: \"Forbidden\" }, 403);\n }\n const formData = await c.req.formData();\n const file = formData.get(\"file\") as File | null;\n if (!file) return c.json({ error: \"No file\" }, 400);\n if (file.size > MAX_FILE_SIZE) return c.json({ error: \"File max size is 200 KB\" }, 400);\n const key = `huddle_file_${roomId}_${user.id}_${Date.now()}_${file.name}`;\n const buf = await file.arrayBuffer();\n await blob.set(key, buf);\n await createMessage(roomId, Number(user.id), null, key, file.name, file.size);\n return c.json({ ok: true });\n});\n\napp.patch(\"/api/messages/:id\", async (c) => {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n const msgId = Number(c.req.param(\"id\"));\n const { content } = await c.req.json();\n if (!content?.trim()) return c.json({ error: \"Content required\" }, 400);\n if (content.length > 2000) return c.json({ error: \"Message too long\" }, 400);\n const msg = await getMessageById(msgId);\n if (!msg) return c.json({ error: \"Not found\" }, 404);\n if (Number(msg.user_id) !== Number(user.id) && !isAdmin(user)) return c.json({ error: \"Forbidden\" }, 403);\n if (!isAdmin(user)) {\n const createdAt = new Date(msg.created_at as string).getTime();\n if (Date.now() - createdAt > 60 * 1000) return c.json({ error: \"Edit window expired (1 min)\" }, 403);\n }\n await editMessage(msgId, Number(user.id), content.trim());\n return c.json({ ok: true });\n});\n\napp.delete(\"/api/messages/:id\", async (c) => {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n const msgId = Number(c.req.param(\"id\"));\n const msg = await getMessageById(msgId);\n if (!msg) return c.json({ error: \"Not found\" }, 404);\n if (Number(msg.user_id) !== Number(user.id) && !isAdmin(user)) return c.json({ error: \"Forbidden\" }, 403);\n await deleteMessage(msgId);\n return c.json({ ok: true });\n});\n\napp.delete(\"/api/rooms/:id/messages\", async (c) => {\n const user = await getSessionUser(c);\n if (!user || !isAdmin(user)) return c.json({ error: \"Forbidden\" }, 403);\n const roomId = Number(c.req.param(\"id\"));\n const room = await getRoomById(roomId);\n if (!room) return c.json({ error: \"Room not found\" }, 404);\n await clearRoom(roomId);\n return c.json({ ok: true });\n});\n\napp.get(\"/api/rooms/:id/search\", async (c) => {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n const roomId = Number(c.req.param(\"id\"));\n const room = await getRoomById(roomId);\n if (!room) return c.json({ error: \"Room not found\" }, 404);\n if (room.type !== \"world\" && !isAdmin(user) && !(await isRoomMember(roomId, Number(user.id)))) {\n return c.json({ error: \"Forbidden\" }, 403);\n }\n const q = c.req.query(\"q\") ?? \"\";\n if (q.trim().length < 2) return c.json({ messages: [] });\n const msgs = await searchMessages(roomId, q.trim());\n return c.json({ messages: msgs });\n});\n\napp.post(\"/api/messages/:id/react\", async (c) => {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n const msgId = Number(c.req.param(\"id\"));\n const { emoji } = await c.req.json();\n if (!emoji) return c.json({ error: \"Emoji required\" }, 400);\n const ALLOWED = [\"👍\",\"❤️\",\"😂\",\"😮\",\"😢\",\"🔥\",\"👀\",\"🎉\",\"💯\",\"🤔\"];\n if (!ALLOWED.includes(emoji)) return c.json({ error: \"Emoji not allowed\" }, 400);\n await addReaction(msgId, Number(user.id), emoji);\n return c.json({ ok: true });\n});\n\napp.delete(\"/api/messages/:id/react\", async (c) => {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n const msgId = Number(c.req.param(\"id\"));\n const { emoji } = await c.req.json();\n await removeReaction(msgId, Number(user.id), emoji);\n return c.json({ ok: true });\n});\n\napp.post(\"/api/rooms/:id/typing\", async (c) => {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n const roomId = Number(c.req.param(\"id\"));\n const { typing } = await c.req.json();\n if (typing) {\n await setTyping(roomId, Number(user.id), user.username as string);\n } else {\n await clearTyping(roomId, Number(user.id));\n }\n return c.json({ ok: true });\n});\n\napp.get(\"/api/link-preview\", async (c) => {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n const url = c.req.query(\"url\");\n if (!url) return c.json({ error: \"URL required\" }, 400);\n try {\n const resp = await fetch(url, {\n headers: { \"User-Agent\": \"Mozilla/5.0 (compatible; Huddle/1.0)\" },\n signal: AbortSignal.timeout(5000),\n });\n if (!resp.ok) return c.json({ error: \"Failed to fetch\" }, 502);\n const html = await resp.text();\n const getTag = (prop: string) => {\n const m = html.match(new RegExp(`]+(?:property|name)=[\"']${prop}[\"'][^>]+content=[\"']([^\"']+)[\"']`, \"i\"))\n || html.match(new RegExp(`]+content=[\"']([^\"']+)[\"'][^>]+(?:property|name)=[\"']${prop}[\"']`, \"i\"));\n return m?.[1] ?? null;\n };\n const titleMatch = html.match(/]*>([^<]+)<\\/title>/i);\n const title = getTag(\"og:title\") || getTag(\"twitter:title\") || titleMatch?.[1]?.trim() || null;\n const description = getTag(\"og:description\") || getTag(\"twitter:description\") || getTag(\"description\") || null;\n const image = getTag(\"og:image\") || getTag(\"twitter:image\") || null;\n const siteName = getTag(\"og:site_name\") || null;\n return c.json({ title, description, image, siteName, url });\n } catch {\n return c.json({ error: \"Could not fetch URL\" }, 502);\n }\n});\n\n// ─── AI Admin — shared helpers ────────────────────────────────────────────────\n\nasync function buildAdminContext(): Promise<{ context: string; userMap: Record }> {\n const allUsers = await getAllUsers();\n const allRooms = await getAllRooms();\n const userMap: Record = {};\n const nonModUsers = (allUsers as any[]).filter((u: any) => u.username.toLowerCase() !== ADMIN_USERNAME.toLowerCase());\n for (const u of nonModUsers) userMap[u.username.toLowerCase()] = Number(u.id);\n const lines: string[] = [];\n lines.push(`=== USERS (${nonModUsers.length}) ===`);\n for (const u of nonModUsers) {\n const banned = u.is_banned ? ` [BANNED${u.ban_expires_at ? \" until \" + u.ban_expires_at : \" PERM\"}]` : \"\";\n const muted = u.is_muted ? ` [MUTED until ${u.mute_expires_at}]` : \"\";\n lines.push(`@${u.username} (id:${u.id}, email:${u.email})${banned}${muted}`);\n }\n lines.push(`\\n=== ROOMS (${allRooms.length}) ===`);\n for (const room of allRooms as any[]) {\n lines.push(`[room:${room.id}] ${room.name} (${room.type})`);\n try {\n const msgs = await getMessages(Number(room.id), undefined);\n const all = (msgs as any[]).filter(\n (m: any) => !m.is_deleted && m.username?.toLowerCase() !== ADMIN_USERNAME.toLowerCase()\n );\n let charBudget = 5000;\n const recent: any[] = [];\n for (let i = all.length - 1; i >= 0 && charBudget > 0; i--) {\n const text = all[i].content || \"[file]\";\n charBudget -= text.length;\n recent.unshift(all[i]);\n }\n for (const m of recent) {\n lines.push(` [msg:${m.id}] @${m.username} (${m.user_id}): ${m.content || \"[file]\"}`);\n }\n } catch {}\n }\n return { context: lines.join(\"\\n\").slice(0, 80000), userMap };\n}\n\nasync function execAdminCommand(lastMsg: string): Promise {\n const deleteMsgMatch = lastMsg.match(/^delete\\s+msg(?:s?|essages?)?\\s+([\\d,\\s]+)/i);\n if (deleteMsgMatch) {\n const ids = deleteMsgMatch[1].split(\",\").map((s: string) => Number(s.trim())).filter((n: number) => n > 0);\n const results: string[] = [];\n for (const msgId of ids) {\n const msg = await getMessageById(msgId);\n if (!msg) { results.push(`Failed: message not found.`); continue; }\n await deleteMessage(msgId);\n results.push(`Done: message removed.`);\n }\n return results.join(\"\\n\");\n }\n const clearRoomMatch = lastMsg.match(/^clear\\s+room\\s+([\\d,\\s]+)/i);\n if (clearRoomMatch) {\n const ids = clearRoomMatch[1].split(\",\").map((s: string) => Number(s.trim())).filter((n: number) => n > 0);\n const results: string[] = [];\n for (const roomId of ids) {\n const room = await getRoomById(roomId);\n if (!room) { results.push(`Failed: room not found.`); continue; }\n await clearRoom(roomId);\n results.push(`Done: cleared all messages in ${(room as any).name}.`);\n }\n return results.join(\"\\n\");\n }\n const actionMatch = lastMsg.match(/^(ban|mute|unban|unmute)\\s+([@\\w,\\s]+?)(?:\\s+(\\d+))?$/i);\n if (actionMatch) {\n const cmd = actionMatch[1].toLowerCase();\n const duration = actionMatch[3] ? Number(actionMatch[3]) : null;\n const usernames = actionMatch[2].split(\",\").map((s: string) => s.trim().replace(/^@/, \"\")).filter(Boolean);\n const results: string[] = [];\n for (const targetUsername of usernames) {\n const target = await getUserByUsername(targetUsername);\n if (!target) { results.push(`Failed: @${targetUsername} not found.`); continue; }\n if (isAdmin({ username: target.username })) { results.push(`Failed: cannot moderate admin.`); continue; }\n if (cmd === \"ban\") {\n const expiresAt = duration ? new Date(Date.now() + duration * 3600000).toISOString() : null;\n await banUser(Number(target.id), expiresAt, null);\n results.push(duration ? `Done: banned @${targetUsername} for ${duration}h.` : `Done: permanently banned @${targetUsername}.`);\n } else if (cmd === \"unban\") {\n await unbanUser(Number(target.id));\n results.push(`Done: unbanned @${targetUsername}.`);\n } else if (cmd === \"mute\") {\n const mins = duration ?? 30;\n await muteUser(Number(target.id), new Date(Date.now() + mins * 60000).toISOString());\n results.push(`Done: muted @${targetUsername} for ${mins}m.`);\n } else if (cmd === \"unmute\") {\n await unmuteUser(Number(target.id));\n results.push(`Done: unmuted @${targetUsername}.`);\n }\n }\n return results.join(\"\\n\");\n }\n return null;\n}\n\n// Shared SSE stream helper\nfunction makeSSEStream(text: string, corsHeaders: Record) {\n const enc = new TextEncoder();\n const readable = new ReadableStream({\n start(controller) {\n controller.enqueue(enc.encode(`data: ${JSON.stringify({ t: text })}\\n\\n`));\n controller.enqueue(enc.encode(\"data: [DONE]\\n\\n\"));\n controller.close();\n },\n });\n return new Response(readable, {\n headers: { \"Content-Type\": \"text/event-stream\", \"Cache-Control\": \"no-cache\", ...corsHeaders },\n });\n}\n\n// ─── TRIAGE endpoint ──────────────────────────────────────────────────────────\napp.post(\"/api/ai/triage\", async (c) => {\n const user = await getSessionUser(c);\n if (!user || !isAdmin(user)) return c.json({ error: \"Forbidden\" }, 403);\n\n const { context } = await buildAdminContext();\n\n const TRIAGE_PROMPT = `You are a moderation triage engine for a casual social chat app called Huddle. Your job is to scan chat messages and flag ONLY serious, genuine violations. You must be extremely lenient with normal human conversation.\n\nIMPORTANT — YOU ARE READING CHAT MESSAGES, NOT MONITORING A USER:\nThe data below contains messages written by users in a chat room. A line like \"@alice: what the hell is wrong with you\" means the user named \"alice\" typed that message to someone. Do NOT report it as \"@alice said something offensive\" — report only what genuinely requires action.\n\nWHAT TO FLAG:\n- CRITICAL: explicit credible death threats directed at a real person, doxxing (sharing someone's real address/phone/ID), malware/phishing links, child exploitation, calls for real-world violence\n- VIOLATION: sustained targeted harassment of a specific user over multiple messages, racial/ethnic/homophobic slurs used as a weapon against a specific person, coordinated brigading or spam\n\nWHAT TO ABSOLUTELY IGNORE (do not flag, do not mention):\n- Any swearing or profanity: \"fuck\", \"shit\", \"damn\", \"hell\", \"ass\", \"bitch\", \"crap\", etc. — these are normal casual language\n- Insults about skills or opinions: \"you suck\", \"you're trash\", \"idiot\", \"stupid\"\n- Venting or frustration: \"I hate this\", \"this is so dumb\", \"wtf\"\n- Edgy humor, dark jokes, sarcasm\n- Trash talk between friends, even crude trash talk\n- Single isolated slurs not directed at anyone\n- Complaining about the app or other users in general\n\nRULES:\n1. Be silent on everything that doesn't meet the CRITICAL or VIOLATION bar. Zero output for normal messages.\n2. No emojis anywhere in output.\n3. No message IDs or numbers in output.\n4. No preamble, no summaries, no meta-commentary.\n5. Quotes max 8 words.\n6. Reason: 3-5 words max.\n7. One Action line per flagged user.\n8. Skip users already listed as [BANNED] — already handled.\n\nOUTPUT FORMAT (flagged items only):\n\n--- CRITICAL ---\n@username | \"exact quote\" | reason\nAction: ban @username\n\n--- VIOLATION ---\n@username | \"exact quote\" | reason\nAction: mute @username 60\n\nIf nothing meets the bar: All clear.\n\n=== DATA ===\n${context}\n=== END ===`;\n\n const resp = await fetch(\"https://api.groq.com/openai/v1/chat/completions\", {\n method: \"POST\",\n headers: { \"Authorization\": `Bearer ${GROQ_API_KEY}`, \"Content-Type\": \"application/json\" },\n body: JSON.stringify({\n model: GROQ_ADMIN_MODEL,\n messages: [{ role: \"system\", content: TRIAGE_PROMPT }, { role: \"user\", content: \"Run triage.\" }],\n max_tokens: 800,\n stream: true,\n }),\n });\n\n if (!resp.ok) {\n const err = await resp.text();\n console.error(\"Triage AI error:\", err);\n return c.json({ error: \"AI service error\" }, 502);\n }\n\n const enc = new TextEncoder();\n const readable = new ReadableStream({\n async start(controller) {\n const reader = resp.body!.getReader();\n const decoder = new TextDecoder();\n let buffer = \"\";\n try {\n while (true) {\n const { done, value } = await reader.read();\n if (done) break;\n buffer += decoder.decode(value, { stream: true });\n const lines = buffer.split(\"\\n\");\n buffer = lines.pop() || \"\";\n for (const line of lines) {\n const trimmed = line.trim();\n if (!trimmed || !trimmed.startsWith(\"data: \")) continue;\n const payload = trimmed.slice(6);\n if (payload === \"[DONE]\") { controller.enqueue(enc.encode(\"data: [DONE]\\n\\n\")); continue; }\n try {\n const json = JSON.parse(payload);\n const delta = json.choices?.[0]?.delta?.content;\n if (delta) controller.enqueue(enc.encode(`data: ${JSON.stringify({ t: delta })}\\n\\n`));\n } catch {}\n }\n }\n } catch (e) { console.error(\"Triage stream error:\", e); }\n finally { controller.close(); }\n },\n });\n\n return new Response(readable, {\n headers: { \"Content-Type\": \"text/event-stream\", \"Cache-Control\": \"no-cache\", \"Connection\": \"keep-alive\", ...CORS_HEADERS },\n });\n});\n\n// ─── Admin execute ────────────────────────────────────────────────────────────\napp.post(\"/api/ai/execute\", async (c) => {\n const user = await getSessionUser(c);\n if (!user || !isAdmin(user)) return c.json({ error: \"Forbidden\" }, 403);\n const { command } = await c.req.json();\n if (!command?.trim()) return c.json({ error: \"Command required\" }, 400);\n const result = await execAdminCommand(command.trim());\n if (result === null) return c.json({ error: \"Unrecognised command\" }, 400);\n return c.json({ ok: true, result });\n});\n\n// ─── Admin chat ───────────────────────────────────────────────────────────────\napp.post(\"/api/ai/admin-chat\", async (c) => {\n const user = await getSessionUser(c);\n if (!user || !isAdmin(user)) return c.json({ error: \"Forbidden\" }, 403);\n\n const { messages } = await c.req.json();\n if (!messages?.length) return c.json({ error: \"Messages required\" }, 400);\n\n const lastMsg: string = messages[messages.length - 1]?.content ?? \"\";\n\n // Direct command execution\n const directResult = await execAdminCommand(lastMsg);\n if (directResult !== null) return makeSSEStream(directResult, CORS_HEADERS);\n\n // \"yes\" / \"confirm\" → execute last suggested Action\n const confirmPhrases = /^(yes|confirm|do it|execute|apply|go ahead|yep|ok|okay)[\\s!.]*$/i;\n if (confirmPhrases.test(lastMsg.trim())) {\n for (let i = messages.length - 2; i >= 0; i--) {\n const msg = messages[i];\n if (msg.role !== \"assistant\") continue;\n const actionLines = [...(msg.content?.matchAll(/Action:\\s*(.+)/gi) ?? [])];\n if (actionLines.length > 0) {\n const results: string[] = [];\n for (const al of actionLines) {\n const cmds = al[1].split(\"|\").map((s: string) => s.trim());\n for (const cmd of cmds) {\n const r = await execAdminCommand(cmd);\n if (r) results.push(r);\n }\n }\n if (results.length > 0) return makeSSEStream(results.join(\"\\n\"), CORS_HEADERS);\n }\n }\n return makeSSEStream(\"No pending action found. Provide a specific command.\", CORS_HEADERS);\n }\n\n const { context } = await buildAdminContext();\n\n const CHAT_PROMPT = `You are the Huddle Admin AI — a moderation assistant for @${ADMIN_USERNAME}, the admin of Huddle.\n\nHuddle is a casual social chat app. You help the admin review activity, manage users, and take moderation actions.\n\nIMPORTANT — YOU ARE READING CHAT MESSAGES, NOT MONITORING A USER:\nThe live data contains chat messages written by users. A line like \"@alice: what the hell\" means alice typed that. Do not report casual language as violations.\n\nYou have full context on all users including their username, user ID, and email address. When the admin asks about a user, you can share their email if relevant. Never share user emails unprompted — only when asked.\n\nWHAT COUNTS AS A VIOLATION:\n- CRITICAL: credible death threats at a real person, doxxing (real address/phone/SSN), malware/phishing links, CSAM, calls for real-world violence\n- VIOLATION: sustained targeted harassment of a specific person across multiple messages, racial/ethnic/homophobic slurs weaponized against a specific user, coordinated spam or brigading\n\nWHAT TO IGNORE COMPLETELY (never flag, never mention):\n- All swearing and profanity: fuck, shit, damn, hell, ass, bitch, crap — totally normal\n- General insults: \"you suck\", \"idiot\", \"you're trash\", \"stupid\"\n- Venting: \"I hate this\", \"wtf\", \"this is garbage\"\n- Dark humor, sarcasm, edgy banter\n- One-off isolated crude language not aimed at anyone\n- Criticizing the app, the game, or opinions\n\nMODERATION RULES:\n1. Only flag CRITICAL or VIOLATION. Be silent on everything else.\n2. No emojis anywhere.\n3. No message IDs in output.\n4. Skip users already [BANNED].\n5. Never flag @${ADMIN_USERNAME}.\n6. Format flagged items as:\n\n--- CRITICAL ---\n@username | \"quote\" | reason\nAction: ban @username\n\n--- VIOLATION ---\n@username | \"quote\" | reason\nAction: mute @username 60\n\n7. If nothing to flag: reply \"All clear.\"\n8. Admin can say \"yes\" or \"confirm\" to execute the last Action — always include Action lines with recommendations.\n9. Supported commands: ban @user [hours] | unban @user | mute @user [mins] | unmute @user | delete msg | clear room \n10. Max 300 words per response unless asked for more.\n\n=== LIVE DATA ===\n${context}\n=== END ===`;\n\n const resp = await fetch(\"https://api.groq.com/openai/v1/chat/completions\", {\n method: \"POST\",\n headers: { \"Authorization\": `Bearer ${GROQ_API_KEY}`, \"Content-Type\": \"application/json\" },\n body: JSON.stringify({\n model: GROQ_ADMIN_MODEL,\n messages: [{ role: \"system\", content: CHAT_PROMPT }, ...messages],\n max_tokens: 900,\n stream: true,\n }),\n });\n\n if (!resp.ok) {\n const err = await resp.text();\n console.error(\"Admin AI error:\", err);\n return c.json({ error: \"AI service error\" }, 502);\n }\n\n const enc2 = new TextEncoder();\n const readable2 = new ReadableStream({\n async start(controller) {\n const reader = resp.body!.getReader();\n const decoder = new TextDecoder();\n let buffer = \"\";\n try {\n while (true) {\n const { done, value } = await reader.read();\n if (done) break;\n buffer += decoder.decode(value, { stream: true });\n const lines = buffer.split(\"\\n\");\n buffer = lines.pop() || \"\";\n for (const line of lines) {\n const trimmed = line.trim();\n if (!trimmed || !trimmed.startsWith(\"data: \")) continue;\n const payload = trimmed.slice(6);\n if (payload === \"[DONE]\") { controller.enqueue(enc2.encode(\"data: [DONE]\\n\\n\")); continue; }\n try {\n const json = JSON.parse(payload);\n const delta = json.choices?.[0]?.delta?.content;\n if (delta) controller.enqueue(enc2.encode(`data: ${JSON.stringify({ t: delta })}\\n\\n`));\n } catch {}\n }\n }\n } catch (e) { console.error(\"Admin AI stream error:\", e); }\n finally { controller.close(); }\n },\n });\n\n return new Response(readable2, {\n headers: { \"Content-Type\": \"text/event-stream\", \"Cache-Control\": \"no-cache\", \"Connection\": \"keep-alive\", ...CORS_HEADERS },\n });\n});\n\n// ─── AI Chat (Mistral / Codestral) ───────────────────────────────────────────\napp.post(\"/api/ai/chat\", async (c) => {\n const user = await getSessionUser(c);\n if (!user) return c.json({ error: \"Not authenticated\" }, 401);\n const { messages, model } = await c.req.json();\n if (!messages?.length) return c.json({ error: \"Messages required\" }, 400);\n\n const isCodestral = model === \"codestral-latest\";\n const apiKey = isCodestral ? CODESTRAL_API_KEY : MISTRAL_API_KEY;\n const apiUrl = isCodestral\n ? \"https://codestral.mistral.ai/v1/chat/completions\"\n : \"https://api.mistral.ai/v1/chat/completions\";\n const selectedModel = isCodestral ? \"codestral-latest\" : \"mistral-large-latest\";\n const systemPrompt = isCodestral\n ? `You are Codestral, an expert AI coding assistant built into Huddle. You specialize in debugging, code generation, code review, refactoring, and all technical questions across any programming language or framework. Be precise, thorough, and always include working code examples. You are not limited to Huddle topics — help with any coding or technical task the user brings you.`\n : `You are Mist, a smart and friendly AI assistant built into Huddle — a real-time chat app. You are a capable general-purpose AI: you can help with writing, analysis, research, brainstorming, math, summaries, planning, creative tasks, answering questions, and much more. You are not limited to Huddle — treat every question as you would a top-tier AI assistant. Be concise and direct by default, but go into detail when the user needs it. If you don't know something, say so honestly.`;\n\n const resp = await fetch(apiUrl, {\n method: \"POST\",\n headers: { \"Authorization\": `Bearer ${apiKey}`, \"Content-Type\": \"application/json\" },\n body: JSON.stringify({\n model: selectedModel,\n messages: [{ role: \"system\", content: systemPrompt }, ...messages],\n max_tokens: 1024,\n stream: true,\n }),\n });\n\n if (!resp.ok) {\n const err = await resp.text();\n console.error(\"AI error:\", err);\n return c.json({ error: \"AI service error\" }, 502);\n }\n\n const encoder = new TextEncoder();\n const readable = new ReadableStream({\n async start(controller) {\n const reader = resp.body!.getReader();\n const decoder = new TextDecoder();\n let buffer = \"\";\n try {\n while (true) {\n const { done, value } = await reader.read();\n if (done) break;\n buffer += decoder.decode(value, { stream: true });\n const lines = buffer.split(\"\\n\");\n buffer = lines.pop() || \"\";\n for (const line of lines) {\n const trimmed = line.trim();\n if (!trimmed || !trimmed.startsWith(\"data: \")) continue;\n const payload = trimmed.slice(6);\n if (payload === \"[DONE]\") { controller.enqueue(encoder.encode(\"data: [DONE]\\n\\n\")); continue; }\n try {\n const json = JSON.parse(payload);\n const delta = json.choices?.[0]?.delta?.content;\n if (delta) controller.enqueue(encoder.encode(`data: ${JSON.stringify({ t: delta })}\\n\\n`));\n } catch {}\n }\n }\n } catch (e) { console.error(\"Stream error:\", e); }\n finally { controller.close(); }\n },\n });\n\n return new Response(readable, {\n headers: { \"Content-Type\": \"text/event-stream\", \"Cache-Control\": \"no-cache\", \"Connection\": \"keep-alive\", ...CORS_HEADERS },\n });\n});\n\nexport default app.fetch;\n","deleted","label",[103],"permalink","https://www.val.town/x/Huddle_app/Huddle/code/index.ts","extension","actionData","errors"]