feat: manually mirror opencoze's code from bytedance

Change-Id: I09a73aadda978ad9511264a756b2ce51f5761adf

backend/infra/impl/messages2query/builtin/messages_to_query.go

@@ -0,0 +1,75 @@
+/*
+ * Copyright 2025 coze-dev Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package builtin
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+
+	"github.com/cloudwego/eino/components/prompt"
+	"github.com/cloudwego/eino/compose"
+	"github.com/cloudwego/eino/schema"
+
+	"github.com/coze-dev/coze-studio/backend/infra/contract/chatmodel"
+	"github.com/coze-dev/coze-studio/backend/infra/contract/messages2query"
+)
+
+func NewMessagesToQuery(_ context.Context, model chatmodel.BaseChatModel, template prompt.ChatTemplate) (messages2query.MessagesToQuery, error) {
+	return &m2q{model, template}, nil
+}
+
+type m2q struct {
+	cm  chatmodel.BaseChatModel
+	tpl prompt.ChatTemplate
+}
+
+func (m *m2q) MessagesToQuery(ctx context.Context, messages []*schema.Message, opts ...messages2query.Option) (newQuery string, err error) {
+	o := &messages2query.Options{ChatModel: m.cm}
+	for _, opt := range opts {
+		opt(o)
+	}
+
+	if o.ChatModel == nil {
+		return "", fmt.Errorf("[MessagesToQuery] chat model not configured")
+	}
+
+	ch := compose.NewChain[[]*schema.Message, string]().
+		AppendLambda(compose.InvokableLambda(func(ctx context.Context, input []*schema.Message) (output map[string]any, err error) {
+			if len(input) == 0 {
+				return nil, fmt.Errorf("no input message")
+			}
+
+			b, err := json.MarshalIndent(input, "", "\t")
+			if err != nil {
+				return nil, err
+			}
+			return map[string]interface{}{"messages": string(b)}, nil
+		})).
+		AppendChatTemplate(m.tpl).
+		AppendChatModel(o.ChatModel).
+		AppendLambda(compose.InvokableLambda(func(ctx context.Context, input *schema.Message) (output string, err error) {
+			return input.Content, nil
+		}))
+
+	r, err := ch.Compile(ctx)
+	if err != nil {
+		return "", err
+	}
+
+	return r.Invoke(ctx, messages)
+}

backend/infra/impl/messages2query/builtin/messages_to_query_test.go

@@ -0,0 +1,64 @@
+/*
+ * Copyright 2025 coze-dev Authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package builtin
+
+import (
+	"context"
+	"testing"
+
+	"github.com/cloudwego/eino/components/model"
+	"github.com/cloudwego/eino/components/prompt"
+	"github.com/cloudwego/eino/schema"
+	"github.com/stretchr/testify/assert"
+)
+
+func TestM2Q(t *testing.T) {
+	ctx := context.Background()
+	impl, err := NewMessagesToQuery(ctx, &mockChatModel{}, prompt.FromMessages(schema.Jinja2,
+		schema.SystemMessage("system message 123"),
+		schema.UserMessage("{{messages}}")))
+	assert.NoError(t, err)
+
+	t.Run("test empty messages", func(t *testing.T) {
+		q, err := impl.MessagesToQuery(ctx, []*schema.Message{})
+		assert.Error(t, err)
+		assert.Equal(t, "", q)
+	})
+
+	t.Run("test success", func(t *testing.T) {
+		q, err := impl.MessagesToQuery(ctx, []*schema.Message{
+			schema.UserMessage("hello"),
+		})
+		assert.NoError(t, err)
+		assert.Equal(t, "mock resp", q)
+	})
+
+}
+
+type mockChatModel struct{}
+
+func (m mockChatModel) Generate(ctx context.Context, input []*schema.Message, opts ...model.Option) (*schema.Message, error) {
+	return schema.AssistantMessage("mock resp", nil), nil
+}
+
+func (m mockChatModel) Stream(ctx context.Context, input []*schema.Message, opts ...model.Option) (*schema.StreamReader[*schema.Message], error) {
+	return nil, nil
+}
+
+func (m mockChatModel) BindTools(tools []*schema.ToolInfo) error {
+	return nil
+}