feat: manually mirror opencoze's code from bytedance

Change-Id: I09a73aadda978ad9511264a756b2ce51f5761adf

backend/domain/workflow/internal/nodes/entry/entry.go

@@ -0,0 +1,62 @@
+package entry
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/coze-dev/coze-studio/backend/domain/workflow/entity/vo"
+	"github.com/coze-dev/coze-studio/backend/domain/workflow/internal/nodes"
+)
+
+type Config struct {
+	DefaultValues map[string]any
+	OutputTypes   map[string]*vo.TypeInfo
+}
+
+type Entry struct {
+	cfg           *Config
+	defaultValues map[string]any
+}
+
+func NewEntry(ctx context.Context, cfg *Config) (*Entry, error) {
+	if cfg == nil {
+		return nil, fmt.Errorf("config is requried")
+	}
+	defaultValues, _, err := nodes.ConvertInputs(ctx, cfg.DefaultValues, cfg.OutputTypes, nodes.FailFast(), nodes.SkipRequireCheck())
+	if err != nil {
+		return nil, err
+	}
+
+	return &Entry{
+		cfg:           cfg,
+		defaultValues: defaultValues,
+	}, nil
+
+}
+
+func (e *Entry) Invoke(_ context.Context, in map[string]any) (out map[string]any, err error) {
+
+	for k, v := range e.defaultValues {
+		if val, ok := in[k]; ok {
+			tInfo := e.cfg.OutputTypes[k]
+			switch tInfo.Type {
+			case vo.DataTypeString:
+				if len(val.(string)) == 0 {
+					in[k] = v
+				}
+			case vo.DataTypeArray:
+				if len(val.([]any)) == 0 {
+					in[k] = v
+				}
+			case vo.DataTypeObject:
+				if len(val.(map[string]any)) == 0 {
+					in[k] = v
+				}
+			}
+		} else {
+			in[k] = v
+		}
+	}
+
+	return in, err
+}