package asteriskws

import (
	"context"
	"net/http"
	"net/http/httptest"
	"testing"
	"time"

	"ai-operator/internal/media"
	"github.com/gorilla/websocket"
)

func TestMediaURLToneSilence(t *testing.T) {
	u, _, err := BuildMediaWebSocketURL("ws://127.0.0.1:8088/media/", "abc")
	if err != nil || u != "ws://127.0.0.1:8088/media/abc" {
		t.Fatalf("%s %v", u, err)
	}
	if _, _, err := BuildMediaWebSocketURL("ws://x/media", ""); err == nil {
		t.Fatal("want empty id error")
	}
	if got := len(GenerateSilence(media.CodecSLIN16, 100*time.Millisecond, 16000)); got != 3200 {
		t.Fatalf("silence len=%d", got)
	}
	if got := len(GenerateSineToneSLIN16(440, 100*time.Millisecond, 16000, 2)); got != 3200 {
		t.Fatalf("tone len=%d", got)
	}
}

func TestClientStatsAndFlowControl(t *testing.T) {
	up := websocket.Upgrader{Subprotocols: []string{"media"}}
	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		conn, err := up.Upgrade(w, r, nil)
		if err != nil {
			return
		}
		defer conn.Close()
		_ = conn.WriteMessage(websocket.TextMessage, []byte("MEDIA_START connection_id:abc format:slin16 optimal_frame_size:640 ptime:20"))
		_ = conn.WriteMessage(websocket.BinaryMessage, []byte{1, 2, 3})
		_ = conn.WriteMessage(websocket.TextMessage, []byte("MEDIA_XOFF"))
		time.Sleep(30 * time.Millisecond)
		_ = conn.WriteMessage(websocket.TextMessage, []byte("MEDIA_XON"))
		for {
			if _, _, err := conn.ReadMessage(); err != nil {
				return
			}
		}
	}))
	defer server.Close()
	u := "ws" + server.URL[len("http"):] + "/media/abc"
	c := NewClient(ClientConfig{URL: u, ConnectionID: "abc", Codec: media.CodecSLIN16})
	ctx, cancel := context.WithTimeout(context.Background(), time.Second)
	defer cancel()
	if err := c.Connect(ctx); err != nil {
		t.Fatal(err)
	}
	defer c.Close(context.Background())
	time.Sleep(80 * time.Millisecond)
	if err := c.SendAudio(ctx, make([]byte, 1280)); err != nil {
		t.Fatal(err)
	}
	st := c.Stats()
	if st.InboundFrames != 1 || st.InboundBytes != 3 || st.XOFFCount != 1 || st.XONCount != 1 || st.OutboundFrames != 2 || st.MediaStart == nil {
		t.Fatalf("stats=%+v", st)
	}
}