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package diff
import (
"github.com/kong/deck/crud"
"github.com/kong/deck/state"
"github.com/pkg/errors"
)
func (sc *Syncer) deleteUpstreams() error {
currentUpstreams, err := sc.currentState.Upstreams.GetAll()
if err != nil {
return errors.Wrap(err, "error fetching upstreams from state")
}
for _, upstream := range currentUpstreams {
n, err := sc.deleteUpstream(upstream)
if err != nil {
return err
}
if n != nil {
err = sc.queueEvent(*n)
if err != nil {
return err
}
}
}
return nil
}
func (sc *Syncer) deleteUpstream(upstream *state.Upstream) (*Event, error) {
_, err := sc.targetState.Upstreams.Get(*upstream.ID)
if err == state.ErrNotFound {
return &Event{
Op: crud.Delete,
Kind: "upstream",
Obj: upstream,
}, nil
}
if err != nil {
return nil, errors.Wrapf(err, "looking up upstream '%v'",
*upstream.Name)
}
return nil, nil
}
func (sc *Syncer) createUpdateUpstreams() error {
targetUpstreams, err := sc.targetState.Upstreams.GetAll()
if err != nil {
return errors.Wrap(err, "error fetching upstreams from state")
}
for _, upstream := range targetUpstreams {
n, err := sc.createUpdateUpstream(upstream)
if err != nil {
return err
}
if n != nil {
err = sc.queueEvent(*n)
if err != nil {
return err
}
}
}
return nil
}
func (sc *Syncer) createUpdateUpstream(upstream *state.Upstream) (*Event,
error) {
upstreamCopy := &state.Upstream{Upstream: *upstream.DeepCopy()}
currentUpstream, err := sc.currentState.Upstreams.Get(*upstream.Name)
if err == state.ErrNotFound {
return &Event{
Op: crud.Create,
Kind: "upstream",
Obj: upstreamCopy,
}, nil
}
if err != nil {
return nil, errors.Wrapf(err, "error looking up upstream %v",
*upstream.Name)
}
// found, check if update needed
if !currentUpstream.EqualWithOpts(upstreamCopy, false, true) {
return &Event{
Op: crud.Update,
Kind: "upstream",
Obj: upstreamCopy,
OldObj: currentUpstream,
}, nil
}
return nil, nil
}
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