chore: loosen static validation when using dynamic parameters (#17516)

Co-authored-by: Steven Masley <stevenmasley@gmail.com>

codersdk/organizations.go

@@ -227,6 +227,7 @@ type CreateWorkspaceRequest struct {
 	RichParameterValues     []WorkspaceBuildParameter `json:"rich_parameter_values,omitempty"`
 	AutomaticUpdates        AutomaticUpdates          `json:"automatic_updates,omitempty"`
 	TemplateVersionPresetID uuid.UUID                 `json:"template_version_preset_id,omitempty" format:"uuid"`
+	EnableDynamicParameters bool                      `json:"enable_dynamic_parameters,omitempty"`
 }
 
 func (c *Client) OrganizationByName(ctx context.Context, name string) (Organization, error) {

codersdk/richparameters.go

@@ -190,6 +190,26 @@ func (r *ParameterResolver) ValidateResolve(p TemplateVersionParameter, v *Works
 	return resolvedValue.Value, nil
 }
 
+// Resolve returns the value of the parameter. It does not do any validation,
+// and is meant for use with the new dynamic parameters code path.
+func (r *ParameterResolver) Resolve(p TemplateVersionParameter, v *WorkspaceBuildParameter) string {
+	prevV := r.findLastValue(p)
+	// First, the provided value
+	resolvedValue := v
+	// Second, previous value if not ephemeral
+	if resolvedValue == nil && !p.Ephemeral {
+		resolvedValue = prevV
+	}
+	// Last, default value
+	if resolvedValue == nil {
+		resolvedValue = &WorkspaceBuildParameter{
+			Name:  p.Name,
+			Value: p.DefaultValue,
+		}
+	}
+	return resolvedValue.Value
+}
+
 // findLastValue finds the value from the previous build and returns it, or nil if the parameter had no value in the
 // last build.
 func (r *ParameterResolver) findLastValue(p TemplateVersionParameter) *WorkspaceBuildParameter {