package model_test

import (
	"testing"
	"time"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"

	"go.yandata.net/iod/iod/go-trustlog/api/model"
)

// TestRecord_TimestampNanosecondPrecision 验证 Record 的时间戳在 CBOR 序列化/反序列化后能保留纳秒精度
func TestRecord_TimestampNanosecondPrecision(t *testing.T) {
	t.Parallel()

	// 创建一个包含纳秒精度的时间戳
	timestamp := time.Date(2024, 1, 1, 12, 30, 45, 123456789, time.UTC)

	original := &model.Record{
		ID:         "rec-nanosecond-test",
		DoPrefix:   "test",
		ProducerID: "producer-1",
		Timestamp:  timestamp,
		Operator:   "operator-1",
		Extra:      []byte("extra"),
		RCType:     "log",
	}

	err := original.CheckAndInit()
	require.NoError(t, err)

	t.Logf("Original timestamp: %v", original.Timestamp)
	t.Logf("Original nanoseconds: %d", original.Timestamp.Nanosecond())

	// 序列化
	data, err := original.MarshalBinary()
	require.NoError(t, err)
	require.NotNil(t, data)

	// 反序列化
	result := &model.Record{}
	err = result.UnmarshalBinary(data)
	require.NoError(t, err)

	t.Logf("Decoded timestamp: %v", result.Timestamp)
	t.Logf("Decoded nanoseconds: %d", result.Timestamp.Nanosecond())

	// 验证纳秒精度被完整保留
	assert.Equal(t, original.Timestamp.UnixNano(), result.Timestamp.UnixNano(),
		"时间戳的纳秒精度应该被完整保留")
	assert.Equal(t, original.Timestamp.Nanosecond(), result.Timestamp.Nanosecond(),
		"纳秒部分应该相等")
}