snapshot commands implemented

internal/xair/snapshot.go

@@ -16,7 +16,7 @@ func NewSnapshot(c *Client) *Snapshot {
 
 // Name gets the name of the snapshot at the given index.
 func (s *Snapshot) Name(index int) (string, error) {
-	address := s.baseAddress + fmt.Sprintf("/name/%d", index)
+	address := s.baseAddress + fmt.Sprintf("/%02d/name", index)
 	err := s.client.SendMessage(address)
 	if err != nil {
 		return "", err
@@ -35,24 +35,30 @@ func (s *Snapshot) Name(index int) (string, error) {
 
 // SetName sets the name of the snapshot at the given index.
 func (s *Snapshot) SetName(index int, name string) error {
-	address := s.baseAddress + fmt.Sprintf("/name/%d", index)
+	address := s.baseAddress + fmt.Sprintf("/%02d/name", index)
 	return s.client.SendMessage(address, name)
 }
 
-// Load loads the snapshot at the given index.
-func (s *Snapshot) Load(index int) error {
-	address := s.baseAddress + fmt.Sprintf("/load/%d", index)
-	return s.client.SendMessage(address)
+// CurrentName sets the name of the current snapshot.
+func (s *Snapshot) CurrentName(name string) error {
+	address := s.baseAddress + "/name"
+	return s.client.SendMessage(address, name)
 }
 
-// Save saves the current state to the snapshot at the given index.
-func (s *Snapshot) Save(index int) error {
-	address := s.baseAddress + fmt.Sprintf("/save/%d", index)
-	return s.client.SendMessage(address)
+// CurrentLoad loads the snapshot at the given index.
+func (s *Snapshot) CurrentLoad(index int) error {
+	address := s.baseAddress + "/load"
+	return s.client.SendMessage(address, int32(index))
 }
 
-// Delete deletes the snapshot at the given index.
-func (s *Snapshot) Delete(index int) error {
-	address := s.baseAddress + fmt.Sprintf("/delete/%d", index)
-	return s.client.SendMessage(address)
+// CurrentSave saves the current state to the snapshot at the given index.
+func (s *Snapshot) CurrentSave(index int) error {
+	address := s.baseAddress + "/save"
+	return s.client.SendMessage(address, int32(index))
+}
+
+// CurrentDelete deletes the snapshot at the given index.
+func (s *Snapshot) CurrentDelete(index int) error {
+	address := s.baseAddress + "/delete"
+	return s.client.SendMessage(address, int32(index))
 }

snapshot.go

@@ -0,0 +1,75 @@
+package main
+
+import "fmt"
+
+type SnapshotCmdGroup struct {
+	List  ListCmd `help:"List all snapshots."        cmd:"list"`
+	Index struct {
+		Index  int       `arg:"" help:"The index of the snapshot."`
+		Name   NameCmd   `help:"Get or set the name of a snapshot."      cmd:"name"`
+		Save   SaveCmd   `help:"Save the current mixer state." cmd:"save"`
+		Load   LoadCmd   `help:"Load a mixer state."         cmd:"load"`
+		Delete DeleteCmd `help:"Delete a snapshot."                      cmd:"delete"`
+	} `help:"The index of the snapshot."            arg:""`
+}
+
+type ListCmd struct {
+}
+
+func (c *ListCmd) Run(ctx *context) error {
+	for i := range 64 {
+		name, err := ctx.Client.Snapshot.Name(i + 1)
+		if err != nil {
+			break
+		}
+		if name == "" {
+			continue
+		}
+		fmt.Fprintf(ctx.Out, "%d: %s\n", i+1, name)
+	}
+	return nil
+}
+
+type NameCmd struct {
+	Name *string `arg:"" help:"The name of the snapshot." optional:""`
+}
+
+func (c *NameCmd) Run(ctx *context, snapshot *SnapshotCmdGroup) error {
+	if c.Name == nil {
+		name, err := ctx.Client.Snapshot.Name(snapshot.Index.Index)
+		if err != nil {
+			return err
+		}
+		fmt.Fprintln(ctx.Out, name)
+		return nil
+	}
+
+	return ctx.Client.Snapshot.SetName(snapshot.Index.Index, *c.Name)
+}
+
+type SaveCmd struct {
+	Name string `arg:"" help:"The name of the snapshot."`
+}
+
+func (c *SaveCmd) Run(ctx *context, snapshot *SnapshotCmdGroup) error {
+	err := ctx.Client.Snapshot.CurrentName(c.Name)
+	if err != nil {
+		return err
+	}
+
+	return ctx.Client.Snapshot.CurrentSave(snapshot.Index.Index)
+}
+
+type LoadCmd struct {
+}
+
+func (c *LoadCmd) Run(ctx *context, snapshot *SnapshotCmdGroup) error {
+	return ctx.Client.Snapshot.CurrentLoad(snapshot.Index.Index)
+}
+
+type DeleteCmd struct {
+}
+
+func (c *DeleteCmd) Run(ctx *context, snapshot *SnapshotCmdGroup) error {
+	return ctx.Client.Snapshot.CurrentDelete(snapshot.Index.Index)
+}