isle/go/daemon/network.go

66 lines
1.4 KiB
Go

package daemon
import (
"context"
"fmt"
"isle/bootstrap"
"isle/daemon/network"
)
func pickNetwork(
ctx context.Context,
networkLoader network.Loader,
networks map[string]network.Network,
) (
network.Network, error,
) {
if len(networks) == 0 {
return nil, ErrNoNetwork
}
creationParams, err := networkLoader.Loadable(ctx)
if err != nil {
return nil, fmt.Errorf("getting loadable networks: %w", err)
}
var (
networkSearchStr = getNetworkSearchStr(ctx)
matchingNetworkIDs = make([]string, 0, len(networks))
)
for _, creationParam := range creationParams {
if networkSearchStr == "" || creationParam.Matches(networkSearchStr) {
matchingNetworkIDs = append(matchingNetworkIDs, creationParam.ID)
}
}
if len(matchingNetworkIDs) == 0 {
return nil, ErrNoMatchingNetworks
} else if len(matchingNetworkIDs) > 1 {
return nil, ErrMultipleMatchingNetworks
}
return networks[matchingNetworkIDs[0]], nil
}
func alreadyJoined(
ctx context.Context,
networks map[string]network.Network,
creationParams bootstrap.CreationParams,
) (
bool, error,
) {
for networkID, network := range networks {
existingCreationParams, err := network.GetNetworkCreationParams(ctx)
if err != nil {
return false, fmt.Errorf(
"getting creation params of network %q: %w", networkID, err,
)
} else if existingCreationParams.Conflicts(creationParams) {
return true, nil
}
}
return false, nil
}