113 lines
2.8 KiB
Go
113 lines
2.8 KiB
Go
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package main
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import (
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"context"
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"fmt"
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"log"
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"os"
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"strings"
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"time"
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"github.com/chromedp/chromedp"
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)
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func main() {
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if len(os.Args) < 2 {
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fmt.Println("Usage: go run jackbox-player-count.go <ROOM_CODE>")
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os.Exit(1)
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}
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roomCode := strings.ToUpper(os.Args[1])
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count, err := getPlayerCount(roomCode)
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if err != nil {
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fmt.Printf("Error: %v\n", err)
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os.Exit(1)
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}
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fmt.Printf("%d\n", count)
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}
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func getPlayerCount(roomCode string) (int, error) {
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// Suppress cookie errors
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opts := append(chromedp.DefaultExecAllocatorOptions[:],
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chromedp.Flag("headless", true),
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)
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allocCtx, cancel := chromedp.NewExecAllocator(context.Background(), opts...)
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defer cancel()
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ctx, cancel := chromedp.NewContext(allocCtx, chromedp.WithLogf(func(s string, i ...interface{}) {
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msg := fmt.Sprintf(s, i...)
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if !strings.Contains(msg, "cookie") {
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log.Printf(msg)
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}
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}))
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defer cancel()
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ctx, cancel = context.WithTimeout(ctx, 30*time.Second)
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defer cancel()
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var playerCount int
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err := chromedp.Run(ctx,
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chromedp.Navigate("https://jackbox.tv/"),
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chromedp.WaitVisible(`input[placeholder*="ENTER 4-LETTER CODE"]`),
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// Inject WebSocket hook BEFORE joining
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chromedp.ActionFunc(func(ctx context.Context) error {
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return chromedp.Evaluate(`
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window.__jackboxPlayerCount = null;
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const OriginalWebSocket = window.WebSocket;
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window.WebSocket = function(...args) {
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const ws = new OriginalWebSocket(...args);
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const originalAddEventListener = ws.addEventListener;
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ws.addEventListener = function(type, listener, ...rest) {
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if (type === 'message') {
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const wrappedListener = function(event) {
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try {
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const data = JSON.parse(event.data);
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if (data.opcode === 'client/welcome' && data.result && data.result.here) {
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window.__jackboxPlayerCount = Object.keys(data.result.here).length;
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}
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} catch (e) {}
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return listener.call(this, event);
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};
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return originalAddEventListener.call(this, type, wrappedListener, ...rest);
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}
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return originalAddEventListener.call(this, type, listener, ...rest);
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};
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return ws;
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};
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`, nil).Do(ctx)
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}),
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// Now join
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chromedp.SendKeys(`input[placeholder*="ENTER 4-LETTER CODE"]`, roomCode+"\n\n"),
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// Poll for the value
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chromedp.ActionFunc(func(ctx context.Context) error {
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for i := 0; i < 60; i++ { // Try for 30 seconds
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time.Sleep(500 * time.Millisecond)
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var count int
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err := chromedp.Evaluate(`window.__jackboxPlayerCount || -1`, &count).Do(ctx)
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if err == nil && count > 0 {
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playerCount = count
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return nil
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}
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}
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return fmt.Errorf("timeout waiting for player count")
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}),
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)
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if err != nil {
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return 0, err
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}
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if playerCount < 0 {
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return 0, fmt.Errorf("could not find player count")
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}
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return playerCount, nil
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}
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