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{ Hono } from \"https://esm.sh/hono@3.11.7\";\nimport { \n getChatMessages, \n addChatMessage, \n getChatRoom, \n getAllChatRooms \n} from \"../database/queries.ts\";\nimport type { ApiResponse, ChatMessage, ChatRoom } from \"../../shared/types.ts\";\n\nconst app = new Hono();\n\n// Store for SSE connections\nconst connections = new Map();\n\n// Get chat messages for a room\napp.get(\"/messages/:roomId\", async (c) => {\n try {\n const roomId = c.req.param(\"roomId\");\n const limit = parseInt(c.req.query(\"limit\") || \"50\");\n \n const messages = await getChatMessages(roomId, limit);\n \n const response: ApiResponse = {\n success: true,\n data: messages.reverse() // Reverse to show oldest first\n };\n return c.json(response);\n } catch (error) {\n const response: ApiResponse = {\n success: false,\n error: \"Failed to fetch messages\"\n };\n return c.json(response, 500);\n }\n});\n\n// Send a chat message\napp.post(\"/messages\", async (c) => {\n try {\n const body = await c.req.json();\n const { roomId, senderName, senderType, message } = body;\n \n if (!roomId || !senderName || !senderType || !message) {\n const response: ApiResponse = {\n success: false,\n error: \"Room ID, sender name, sender type, and message are required\"\n };\n return c.json(response, 400);\n }\n\n if (!['customer', 'admin'].includes(senderType)) {\n const response: ApiResponse = {\n success: false,\n error: \"Sender type must be 'customer' or 'admin'\"\n };\n return c.json(response, 400);\n }\n\n const messageId = await addChatMessage(roomId, senderName, senderType, message);\n \n // Create the message object to return and broadcast\n const newMessage: ChatMessage = {\n id: messageId,\n room_id: roomId,\n sender_name: senderName,\n sender_type: senderType,\n message,\n created_at: new Date().toISOString()\n };\n\n // Broadcast to SSE connections for this room\n const controller = connections.get(roomId);\n if (controller) {\n try {\n controller.enqueue(`data: ${JSON.stringify(newMessage)}\\n\\n`);\n } catch (error) {\n // Connection might be closed, remove it\n connections.delete(roomId);\n }\n }\n\n const response: ApiResponse = {\n success: true,\n data: newMessage\n };\n return c.json(response);\n } catch (error) {\n console.error(\"Chat message error:\", error);\n const response: ApiResponse = {\n success: false,\n error: \"Failed to send message\"\n };\n return c.json(response, 500);\n }\n});\n\n// SSE stream for real-time messages\napp.get(\"/stream/:roomId\", async (c) => {\n const roomId = c.req.param(\"roomId\");\n \n const stream = new ReadableStream({\n start(controller) {\n // Store connection for broadcasting\n connections.set(roomId, controller);\n \n // Send initial connection message\n controller.enqueue(`data: ${JSON.stringify({ type: 'connected', roomId })}\\n\\n`);\n },\n cancel() {\n // Clean up connection\n connections.delete(roomId);\n }\n });\n\n return new Response(stream, {\n headers: {\n 'Content-Type': 'text/event-stream',\n 'Cache-Control': 'no-cache',\n 'Connection': 'keep-alive',\n },\n });\n});\n\n// Get chat room info\napp.get(\"/room/:roomId\", async (c) => {\n try {\n const roomId = c.req.param(\"roomId\");\n const room = await getChatRoom(roomId);\n \n const response: ApiResponse = {\n success: true,\n data: room\n };\n return c.json(response);\n } catch (error) {\n const response: ApiResponse = {\n success: false,\n error: \"Failed to fetch chat room\"\n };\n return c.json(response, 500);\n }\n});\n\n// Get all chat rooms (for admin)\napp.get(\"/rooms\", async (c) => {\n try {\n const rooms = await getAllChatRooms();\n \n const response: ApiResponse = {\n success: true,\n data: rooms\n };\n return c.json(response);\n } catch (error) {\n const response: ApiResponse = {\n success: false,\n error: \"Failed to fetch chat rooms\"\n };\n return c.json(response, 500);\n }\n});\n\nexport default app;","deleted","label",[170,171,153],"backend","routes","permalink","https://www.val.town/x/Zee_paul/App/code/backend/routes/chat.ts","extension","actionData","errors"]