await redis.subscribe(["chat"])

await redis.psubscribe(["chat:*"])

import { Redis } from "@upstash/redis"

// Initialize Redis client
const redis = new Redis({
  url: 'UPSTASH_REDIS_REST_URL',
  token: 'UPSTASH_REDIS_REST_TOKEN',
})

// Regular Subscribe
const subscriber = redis.subscribe(["channel1", "channel2"])

// Pattern Subscribe
const patternSubscriber = redis.psubscribe(["user:*", "chat:*"])

// Listen to regular messages
subscriber.on("message", (message) => {
  console.log("Received message:", message)
})

// Listen to pattern matches
patternSubscriber.on("pmessage", (message) => {
  console.log("Pattern matched message:", message)
})

// Listen with channel/pattern info
patternSubscriber.on("pmessageBuffer", ({ pattern, channel, message }) => {
  console.log(`Pattern ${pattern} matched on ${channel}:`, message)
})

// Listen to specific channel/pattern messages
subscriber.on("message:channel1", (message) => {
  console.log("Channel1 message:", message)
})
patternSubscriber.on("pmessage:user:*", ({ channel, message }) => {
  console.log(`User message on ${channel}:`, message)
})

// Publish messages
await redis.publish("channel1", { text: "Hello World!" })
await redis.publish("user:123", { text: "Hello User!" })

// Unsubscribe from specific channels/patterns
await subscriber.unsubscribe(["channel1"])
await patternSubscriber.unsubscribe(["user:*"])

// Unsubscribe from all
await subscriber.unsubscribe()
await patternSubscriber.unsubscribe()

// Check current subscriptions
const channels = subscriber.getSubscribedChannels()      // ["channel2"]
const patterns = patternSubscriber.getSubscribedChannels() // ["chat:*"]