package borealis

import (
	"bytes"
	"encoding/json"
	"testing"
	"time"

	"github.com/fxamacker/cbor/v2"
	"github.com/segmentio/ksuid"
)

var expectedEvent = Event{
	Type:         1,
	SequentialID: 2,
	Timestamp:    time.UnixMicro(1231006508004000), // 2009-01-03T18:15:08.004Z
	UniqueID:     ksuid.KSUID{245, 237, 93, 44, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15},
	Payload:      map[string]interface{}{},
}

var expectedEventRaw = RawEvent{
	Type:         1,
	SequentialID: 2,
	TimestampS:   3,
	TimestampMS:  4,
	UniqueID:     []byte{0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0xA, 0xB, 0xC, 0xD, 0xE, 0xF},
	Payload:      map[string]interface{}{},
}

var expectedEventJSON = "[1,2,3,4,\"AAECAwQFBgcICQoLDA0ODw==\",{}]"
var expectedEventCBOR = []byte{0x86, 1, 2, 3, 4, 0x50, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 0xa0}

func TestCheckEvent(t *testing.T) {
	actualEvent, err := expectedEventRaw.Check()
	if err != nil {
		t.Error(err)
	}
	if !expectedEvent.Equal(*actualEvent) {
		t.Errorf("expected %v, but got %v", expectedEvent, actualEvent)
	}
}

func TestEncodeEventJSON(t *testing.T) {
	output, err := json.Marshal(expectedEventRaw)
	if err != nil {
		t.Error(err)
	}
	actual := string(output)
	if actual != expectedEventJSON {
		t.Errorf("expected %v, but got %v", expectedEventJSON, actual)
	}
}

func TestEncodeEventCBOR(t *testing.T) {
	actual, err := cbor.Marshal(expectedEventRaw)
	if err != nil {
		t.Error(err)
	}
	if !bytes.Equal(actual, expectedEventCBOR) {
		t.Errorf("expected %v, but got %v", expectedEventCBOR, actual)
	}
}

func TestDecodeEventJSON(t *testing.T) {
	var actual RawEvent
	if err := json.Unmarshal([]byte(expectedEventJSON), &actual); err != nil {
		t.Error(err)
	}
	if !expectedEventRaw.Equal(actual) {
		t.Errorf("expected %v, but got %v", expectedEventRaw, actual)
	}
}
func TestDecodeEventCBOR(t *testing.T) {
	var actual RawEvent
	if err := cbor.Unmarshal([]byte(expectedEventCBOR), &actual); err != nil {
		t.Error(err)
	}
	if !expectedEventRaw.Equal(actual) {
		t.Errorf("expected %v, but got %v", expectedEventRaw, actual)
	}
}