package tracker

import "testing"

func TestTrackerMapsMessageSequenceAndGatewayIDs(t *testing.T) {
	tr := New()

	submit := tr.TrackSubmit("msg-1", 1001)
	if submit.MessageID != "msg-1" || submit.SequenceID != 1001 {
		t.Fatalf("unexpected submit mapping: %+v", submit)
	}

	resp, err := tr.TrackSubmitResp(1001, "gw-1")
	if err != nil {
		t.Fatalf("track submit resp: %v", err)
	}
	if resp.GatewayMessageID != "gw-1" {
		t.Fatalf("unexpected gateway message id: %+v", resp)
	}

	byGateway, err := tr.ByGatewayMessageID("gw-1")
	if err != nil {
		t.Fatalf("lookup by gateway id: %v", err)
	}
	if byGateway.MessageID != "msg-1" || byGateway.SequenceID != 1001 {
		t.Fatalf("unexpected gateway lookup: %+v", byGateway)
	}
}

func TestTrackerRejectsUnknownSubmitResp(t *testing.T) {
	tr := New()

	if _, err := tr.TrackSubmitResp(404, "gw-missing"); err == nil {
		t.Fatal("expected missing mapping error")
	}
}