Implement CEL filter in list group command

group/filter.go

@@ -0,0 +1,63 @@
+package group
+
+import (
+	"context"
+	"fmt"
+
+	"github.com/google/cel-go/cel"
+	"github.com/passbolt/go-passbolt/api"
+)
+
+// Environments for CEl
+var celEnvOptions = []cel.EnvOption{
+	cel.Variable("ID", cel.StringType),
+	cel.Variable("Name", cel.StringType),
+	cel.Variable("CreatedTimestamp", cel.TimestampType),
+	cel.Variable("ModifiedTimestamp", cel.TimestampType),
+}
+
+// Filters the slice groups by invoke CEL program for each group
+func filterGroups(groups *[]api.Group, celCmd string, ctx context.Context) ([]api.Group, error) {
+	if celCmd == "" {
+		return *groups, nil
+	}
+
+	env, err := cel.NewEnv(celEnvOptions...)
+	if err != nil {
+		return nil, err
+	}
+
+	ast, issue := env.Compile(celCmd)
+	if issue.Err() != nil {
+		return nil, issue.Err()
+	}
+
+	program, err := env.Program(ast)
+	if err != nil {
+		return nil, err
+	}
+
+	filteredGroups := []api.Group{}
+	for _, group := range *groups {
+		val, _, err := program.ContextEval(ctx, map[string]any{
+			"ID":                group.ID,
+			"Name":              group.Name,
+			"CreatedTimestamp":  group.Created.Time,
+			"ModifiedTimestamp": group.Modified.Time,
+		})
+
+		if err != nil {
+			return nil, err
+		}
+
+		if val.Value() == true {
+			filteredGroups = append(filteredGroups, group)
+		}
+	}
+
+	if len(filteredGroups) == 0 {
+		return nil, fmt.Errorf("No such groups found with filter %v!", celCmd)
+	}
+
+	return filteredGroups, nil
+}

group/list.go

@@ -51,6 +51,10 @@ func GroupList(cmd *cobra.Command, args []string) error {
 	if err != nil {
 		return err
 	}
+	celFilter, err := cmd.Flags().GetString("filter")
+	if err != nil {
+		return err
+	}
 
 	ctx := util.GetContext()
 
@@ -69,6 +73,11 @@ func GroupList(cmd *cobra.Command, args []string) error {
 		return fmt.Errorf("Listing Group: %w", err)
 	}
 
+	groups, err = filterGroups(&groups, celFilter, ctx)
+	if err != nil {
+		return err
+	}
+
 	if jsonOutput {
 		outputGroups := []GroupJsonOutput{}
 		for i := range groups {