func useStateAndNodeRolesInPlanModifiers()

in ec/ecresource/deploymentresource/elasticsearch/v2/node_roles.go [134:186]
34 lines of code
10 McCabe index (conditional complexity)

func useStateAndNodeRolesInPlanModifiers(ctx context.Context, configValue attr.Value, plan tfsdk.Plan, state tfsdk.State, planValue attr.Value) (useState bool, useNodeRoles bool, diags diag.Diagnostics) {
	if !planValue.IsUnknown() {
		return false, false, nil
	}

	if configValue.IsUnknown() {
		return false, false, nil
	}

	var stateVersion types.String

	if diags := state.GetAttribute(ctx, path.Root("version"), &stateVersion); diags.HasError() {
		return false, false, diags
	}

	// If resource has state, then it should contain version.
	// So if there is no version in state, plan modifier is called for Create.
	// In that case there is no state to use.
	// We cannot use StateValue from request parameter for this purpose,
	// because null can be a valid state for node_roles and node_types in Update.
	// E.g. node_roles' state can be null if node_types are used.
	if stateVersion.IsNull() {
		return false, false, nil
	}

	// if template changed return
	templateChanged, diags := planmodifiers.AttributeChanged(ctx, path.Root("deployment_template_id"), plan, state)
	if diags.HasError() {
		return false, false, diags
	}

	if templateChanged {
		return false, false, nil
	}

	var planVersion types.String

	if diags := plan.GetAttribute(ctx, path.Root("version"), &planVersion); diags.HasError() {
		return false, false, diags
	}

	var elasticsearch types.Object

	if diags := plan.GetAttribute(ctx, path.Root("elasticsearch"), &elasticsearch); diags.HasError() {
		return false, false, diags
	}

	if useNodeRoles, diags = UseNodeRoles(ctx, stateVersion, planVersion, elasticsearch); diags.HasError() {
		return false, false, diags
	}

	return true, useNodeRoles, nil
}