merge ucind cluster configuration to the user’s uncloud config

internal/ucind/config.go

@@ -0,0 +1,68 @@
+package ucind
+
+import (
+	"fmt"
+	"uncloud/internal/cli/config"
+)
+
+type ConfigUpdater struct {
+	path string
+}
+
+func NewConfigUpdater(path string) *ConfigUpdater {
+	return &ConfigUpdater{path: path}
+}
+
+func (u *ConfigUpdater) AddCluster(c Cluster) error {
+	cfg, err := config.NewFromFile(u.path)
+	if err != nil {
+		return fmt.Errorf("read Uncloud config: %w", err)
+	}
+
+	if _, ok := cfg.Clusters[c.Name]; ok {
+		return fmt.Errorf("cluster '%s' already exists", c.Name)
+	}
+
+	clusterCfg := &config.Cluster{
+		Name:        c.Name,
+		Connections: make([]config.MachineConnection, len(c.Machines)),
+	}
+	for i, m := range c.Machines {
+		clusterCfg.Connections[i] = config.MachineConnection{
+			TCP: m.APIAddress,
+		}
+	}
+
+	cfg.Clusters[c.Name] = clusterCfg
+	cfg.CurrentCluster = c.Name
+
+	if err = cfg.Save(); err != nil {
+		return fmt.Errorf("save config: %w", err)
+	}
+	return nil
+}
+
+func (u *ConfigUpdater) RemoveCluster(name string) error {
+	cfg, err := config.NewFromFile(u.path)
+	if err != nil {
+		return fmt.Errorf("read Uncloud config: %w", err)
+	}
+
+	if _, ok := cfg.Clusters[name]; !ok {
+		return nil
+	}
+
+	delete(cfg.Clusters, name)
+
+	if cfg.CurrentCluster == name {
+		cfg.CurrentCluster = ""
+	}
+	if _, ok := cfg.Clusters["default"]; ok {
+		cfg.CurrentCluster = "default"
+	}
+
+	if err = cfg.Save(); err != nil {
+		return fmt.Errorf("save config: %w", err)
+	}
+	return nil
+}