address.go

/*
Copyright 2021 The Crossplane 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 address

import (
	compute "google.golang.org/api/compute/v1"

	"github.com/crossplane-contrib/provider-gcp/apis/compute/v1beta1"
	gcp "github.com/crossplane-contrib/provider-gcp/pkg/clients"
)

// GenerateAddress converts the supplied AddressParameters into an
// Address suitable for use with the Google Compute API.
func GenerateAddress(name string, in v1beta1.AddressParameters, address *compute.Address) {
	// Kubernetes API conventions dictate that optional, unspecified fields must
	// be nil. GCP API clients omit any field set to its zero value, using
	// NullFields and ForceSendFields to handle edge cases around unsetting
	// previously set values, or forcing zero values to be set. The Address API
	// does not support updates, so we can safely convert any nil pointer to
	// string or int64 to their zero values.
	address.Address = gcp.StringValue(in.Address)
	address.AddressType = gcp.StringValue(in.AddressType)
	address.Description = gcp.StringValue(in.Description)
	address.IpVersion = gcp.StringValue(in.IPVersion)
	address.Name = name
	address.Network = gcp.StringValue(in.Network)
	address.PrefixLength = gcp.Int64Value(in.PrefixLength)
	address.Purpose = gcp.StringValue(in.Purpose)
	address.Subnetwork = gcp.StringValue(in.Subnetwork)
	address.Region = in.Region
}

// LateInitializeSpec updates any unset (i.e. nil) optional fields of the
// supplied AddressParameters that are set (i.e. non-zero) on the supplied
// Address.
func LateInitializeSpec(p *v1beta1.AddressParameters, observed compute.Address) {
	p.Address = gcp.LateInitializeString(p.Address, observed.Address)
	p.AddressType = gcp.LateInitializeString(p.AddressType, observed.AddressType)
	p.Description = gcp.LateInitializeString(p.Description, observed.Description)
	p.IPVersion = gcp.LateInitializeString(p.IPVersion, observed.IpVersion)
	p.Network = gcp.LateInitializeString(p.Network, observed.Network)
	p.PrefixLength = gcp.LateInitializeInt64(p.PrefixLength, observed.PrefixLength)
	p.Purpose = gcp.LateInitializeString(p.Purpose, observed.Purpose)
	p.Subnetwork = gcp.LateInitializeString(p.Subnetwork, observed.Subnetwork)
}

// GenerateAddressObservation takes a compute.Address and returns
// *AddressObservation.
func GenerateAddressObservation(observed compute.Address) v1beta1.AddressObservation {
	return v1beta1.AddressObservation{
		CreationTimestamp: observed.CreationTimestamp,
		ID:                observed.Id,
		SelfLink:          observed.SelfLink,
		Status:            observed.Status,
		Users:             observed.Users,
	}
}