package model_test

import (
	"context"
	"testing"
	"time"

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

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

func TestRecord_Key(t *testing.T) {
	t.Parallel()

	rec := &model.Record{
		ID: "test-record-id",
	}
	assert.Equal(t, "test-record-id", rec.Key())
}

func TestNewFullRecord(t *testing.T) {
	t.Parallel()

	now := time.Now()
	rec, err := model.NewFullRecord(
		"test-prefix",
		"producer-1",
		now,
		"operator-1",
		[]byte("extra"),
		"log",
	)
	require.NoError(t, err)
	assert.NotNil(t, rec)
	assert.NotEmpty(t, rec.ID)
	assert.Equal(t, "test-prefix", rec.DoPrefix)
	assert.Equal(t, "producer-1", rec.ProducerID)
	assert.Equal(t, now.Unix(), rec.Timestamp.Unix())
	assert.Equal(t, "operator-1", rec.Operator)
	assert.Equal(t, []byte("extra"), rec.Extra)
	assert.Equal(t, "log", rec.RCType)
}

func TestNewFullRecord_Invalid(t *testing.T) {
	t.Parallel()

	now := time.Now()
	// Missing required ProducerID
	rec, err := model.NewFullRecord(
		"test-prefix",
		"", // Empty ProducerID
		now,
		"operator-1",
		[]byte("extra"),
		"log",
	)
	require.Error(t, err)
	assert.Nil(t, rec)
}

func TestRecord_CheckAndInit(t *testing.T) {
	t.Parallel()

	tests := []struct {
		name    string
		rec     *model.Record
		wantErr bool
	}{
		{
			name: "valid record",
			rec: &model.Record{
				DoPrefix:   "test",
				ProducerID: "producer-1",
				Timestamp:  time.Now(),
				Operator:   "operator-1",
				Extra:      []byte("extra"),
				RCType:     "log",
			},
			wantErr: false,
		},
		{
			name: "auto generate ID",
			rec: &model.Record{
				ID:         "", // Will be auto-generated
				DoPrefix:   "test",
				ProducerID: "producer-1",
				Timestamp:  time.Now(),
				Operator:   "operator-1",
				Extra:      []byte("extra"),
				RCType:     "log",
			},
			wantErr: false,
		},
		{
			name: "missing ProducerID",
			rec: &model.Record{
				DoPrefix:   "test",
				ProducerID: "", // Required field
				Timestamp:  time.Now(),
				Operator:   "operator-1",
				Extra:      []byte("extra"),
				RCType:     "log",
			},
			wantErr: true,
		},
	}

	for _, tt := range tests {
		t.Run(tt.name, func(t *testing.T) {
			t.Parallel()
			err := tt.rec.CheckAndInit()
			if tt.wantErr {
				require.Error(t, err)
			} else {
				require.NoError(t, err)
				if tt.name == "auto generate ID" {
					assert.NotEmpty(t, tt.rec.ID)
				}
			}
		})
	}
}

func TestRecord_MarshalUnmarshalBinary(t *testing.T) {
	t.Parallel()

	original := &model.Record{
		ID:         "rec-123",
		DoPrefix:   "test",
		ProducerID: "producer-1",
		Timestamp:  time.Now(),
		Operator:   "operator-1",
		Extra:      []byte("extra"),
		RCType:     "log",
	}

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

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

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

	// Verify
	assert.Equal(t, original.ID, result.ID)
	assert.Equal(t, original.DoPrefix, result.DoPrefix)
	assert.Equal(t, original.ProducerID, result.ProducerID)
	assert.Equal(t, original.Timestamp.Unix(), result.Timestamp.Unix())
	// 验证纳秒精度被保留
	assert.Equal(t, original.Timestamp.UnixNano(), result.Timestamp.UnixNano(),
		"时间戳的纳秒精度应该被保留")
	assert.Equal(t, original.Operator, result.Operator)
	assert.Equal(t, original.Extra, result.Extra)
	assert.Equal(t, original.RCType, result.RCType)
}

func TestRecord_MarshalBinary_Empty(t *testing.T) {
	t.Parallel()

	rec := &model.Record{
		DoPrefix:   "test",
		ProducerID: "producer-1",
		Timestamp:  time.Now(),
	}
	// MarshalBinary should succeed even without CheckAndInit
	// It just serializes the data
	data, err := rec.MarshalBinary()
	require.NoError(t, err)
	assert.NotNil(t, data)
}

func TestRecord_UnmarshalBinary_Empty(t *testing.T) {
	t.Parallel()

	rec := &model.Record{}
	err := rec.UnmarshalBinary([]byte{})
	require.Error(t, err)
}

func TestRecord_DoHash(t *testing.T) {
	t.Parallel()

	rec := &model.Record{
		ID:         "rec-123",
		DoPrefix:   "test",
		ProducerID: "producer-1",
		Timestamp:  time.Now(),
		Operator:   "operator-1",
		Extra:      []byte("extra"),
		RCType:     "log",
	}

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

	ctx := context.Background()
	hashData, err := rec.DoHash(ctx)
	require.NoError(t, err)
	assert.NotNil(t, hashData)
	assert.Equal(t, rec.ID, hashData.Key())
	assert.NotEmpty(t, hashData.Hash())
}

func TestRecordHashData(t *testing.T) {
	t.Parallel()

	// RecordHashData is created through DoHash, test it indirectly
	rec := &model.Record{
		ID:         "rec-123",
		DoPrefix:   "test",
		ProducerID: "producer-1",
		Timestamp:  time.Now(),
		Operator:   "operator-1",
		Extra:      []byte("extra"),
		RCType:     "log",
	}

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

	ctx := context.Background()
	hashData, err := rec.DoHash(ctx)
	require.NoError(t, err)
	assert.NotNil(t, hashData)
	assert.Equal(t, "rec-123", hashData.Key())
	assert.NotEmpty(t, hashData.Hash())
	assert.Equal(t, model.Sha256Simd, hashData.Type())
}

func TestRecord_GetProducerID(t *testing.T) {
	t.Parallel()

	rec := &model.Record{
		ProducerID: "producer-123",
	}
	assert.Equal(t, "producer-123", rec.GetProducerID())
}

func TestRecord_GetDoPrefix(t *testing.T) {
	t.Parallel()

	rec := &model.Record{
		DoPrefix: "test-prefix",
	}
	assert.Equal(t, "test-prefix", rec.GetDoPrefix())
}

func TestRecord_WithDoPrefix(t *testing.T) {
	t.Parallel()

	rec := &model.Record{}
	result := rec.WithDoPrefix("test-prefix")
	assert.Equal(t, rec, result)
	assert.Equal(t, "test-prefix", rec.DoPrefix)
}

func TestRecord_WithTimestamp(t *testing.T) {
	t.Parallel()

	rec := &model.Record{}
	now := time.Now()
	result := rec.WithTimestamp(now)
	assert.Equal(t, rec, result)
	assert.Equal(t, now.Unix(), rec.Timestamp.Unix())
}

func TestRecord_WithOperator(t *testing.T) {
	t.Parallel()

	rec := &model.Record{}
	result := rec.WithOperator("operator-1")
	assert.Equal(t, rec, result)
	assert.Equal(t, "operator-1", rec.Operator)
}

func TestRecord_WithExtra(t *testing.T) {
	t.Parallel()

	rec := &model.Record{}
	extra := []byte("extra-data")
	result := rec.WithExtra(extra)
	assert.Equal(t, rec, result)
	assert.Equal(t, extra, rec.Extra)
}

func TestRecord_WithRCType(t *testing.T) {
	t.Parallel()

	rec := &model.Record{}
	result := rec.WithRCType("log")
	assert.Equal(t, rec, result)
	assert.Equal(t, "log", rec.RCType)
}

func TestRecord_ChainedMethods(t *testing.T) {
	t.Parallel()

	rec := &model.Record{}
	now := time.Now()
	result := rec.
		WithDoPrefix("prefix").
		WithTimestamp(now).
		WithOperator("operator").
		WithExtra([]byte("extra")).
		WithRCType("log")

	assert.Equal(t, rec, result)
	assert.Equal(t, "prefix", rec.DoPrefix)
	assert.Equal(t, now.Unix(), rec.Timestamp.Unix())
	assert.Equal(t, "operator", rec.Operator)
	assert.Equal(t, []byte("extra"), rec.Extra)
	assert.Equal(t, "log", rec.RCType)
}