func (h *hub) processReqSelect(req baps3.Message) (resps []*baps3.Message) {
args := req.Args()
if len(args) == 0 {
if h.pl.HasSelection() {
// Remove current selection
h.cReqCh <- *baps3.NewMessage(baps3.RqEject)
h.pl.selection = -1
resps = append(resps, baps3.NewMessage(baps3.RsSelect))
} else {
// TODO: Should we care about there not being an existing selection?
resps = append(resps, baps3.NewMessage(baps3.RsFail).AddArg("No selection to remove"))
}
} else if len(args) == 2 {
iStr, hash := args[0], args[1]
i, err := strconv.Atoi(iStr)
if err != nil {
return append(resps, baps3.NewMessage(baps3.RsWhat).AddArg("Bad index"))
}
newIdx, newHash, err := h.pl.Select(i, hash)
if err != nil {
return append(resps, baps3.NewMessage(baps3.RsFail).AddArg(err.Error()))
}
h.cReqCh <- *baps3.NewMessage(baps3.RqLoad).AddArg(h.pl.items[h.pl.selection].Data)
resps = append(resps, baps3.NewMessage(baps3.RsSelect).AddArg(strconv.Itoa(newIdx)).AddArg(newHash))
} else {
resps = makeBadCommandMsgs()
}
return
}
func (h *hub) processReqEnqueue(req baps3.Message) (resps []*baps3.Message) {
args := req.Args()
if len(args) != 4 {
return makeBadCommandMsgs()
}
iStr, hash, itemType, data := args[0], args[1], args[2], args[3]
i, err := strconv.Atoi(iStr)
if err != nil {
return append(resps, baps3.NewMessage(baps3.RsWhat).AddArg("Bad index"))
}
if itemType != "file" && itemType != "text" {
return append(resps, baps3.NewMessage(baps3.RsWhat).AddArg("Bad item type"))
}
oldSelection := h.pl.selection
item := &PlaylistItem{Data: data, Hash: hash, IsFile: itemType == "file"}
newIdx, err := h.pl.Enqueue(i, item)
if err != nil {
return append(resps, baps3.NewMessage(baps3.RsFail).AddArg(err.Error()))
}
if oldSelection != h.pl.selection {
resps = append(resps, baps3.NewMessage(baps3.RsSelect).AddArg(strconv.Itoa(h.pl.selection)).AddArg(h.pl.items[h.pl.selection].Hash))
}
return append(resps, baps3.NewMessage(baps3.RsEnqueue).AddArg(strconv.Itoa(newIdx)).AddArg(item.Hash).AddArg(itemType).AddArg(item.Data))
}
func (h *hub) processReqDequeue(req baps3.Message) (resps []*baps3.Message) {
args := req.Args()
if len(args) != 2 {
return makeBadCommandMsgs()
}
iStr, hash := args[0], args[1]
i, err := strconv.Atoi(iStr)
if err != nil {
return append(resps, baps3.NewMessage(baps3.RsWhat).AddArg("Bad index"))
}
oldSelection := h.pl.selection
rmIdx, rmHash, err := h.pl.Dequeue(i, hash)
if err != nil {
return append(resps, baps3.NewMessage(baps3.RsFail).AddArg(err.Error()))
}
if oldSelection != h.pl.selection {
if !h.pl.HasSelection() {
resps = append(resps, baps3.NewMessage(baps3.RsSelect))
} else {
resps = append(resps, baps3.NewMessage(baps3.RsSelect).AddArg(strconv.Itoa(h.pl.selection)).AddArg(h.pl.items[h.pl.selection].Hash))
}
}
return append(resps, baps3.NewMessage(baps3.RsDequeue).AddArg(strconv.Itoa(rmIdx)).AddArg(rmHash))
}
// Collates all the responses that comprise a dump response.
// Exists as this is used by the dump response handler /and/ is sent on client connection
func (h *hub) makeDumpResponses() (msgs []*baps3.Message) {
msgs = append(msgs, baps3.NewMessage(baps3.RsState).AddArg(h.downstreamState.State.String()))
if h.downstreamState.State != baps3.StEjected {
msgs = append(msgs, baps3.NewMessage(baps3.RsTime).AddArg(
strconv.FormatInt(h.downstreamState.Time.Nanoseconds()/1000, 10)))
}
msgs = append(msgs, h.makeRsAutoAdvance())
msgs = append(msgs, h.makeListResponses()...)
return
}
// Collates all the responses that comprise a list reponse.
// Exists as this is used by the list response handler and makeDumpResponse.
func (h *hub) makeListResponses() (msgs []*baps3.Message) {
msgs = append(msgs, baps3.NewMessage(baps3.RsCount).AddArg(strconv.Itoa(len(h.pl.items))))
for i, item := range h.pl.items {
typeStr := "file"
if !item.IsFile {
typeStr = "text"
}
msgs = append(msgs, baps3.NewMessage(baps3.RsItem).AddArg(strconv.Itoa(i)).AddArg(item.Hash).AddArg(typeStr).AddArg(item.Data))
}
return
}
func (h *hub) makeRsAutoAdvance() (msg *baps3.Message) {
var autoadvancestate string
if h.autoAdvance {
autoadvancestate = "on"
} else {
autoadvancestate = "off"
}
return baps3.NewMessage(baps3.RsAutoAdvance).AddArg(autoadvancestate)
}
func (h *hub) processReqAutoadvance(req baps3.Message) (msgs []*baps3.Message) {
if len(req.Args()) != 1 {
return makeBadCommandMsgs()
}
onoff, _ := req.Arg(0)
switch onoff {
case "on":
h.autoAdvance = true
case "off":
h.autoAdvance = false
default:
return append(msgs, baps3.NewMessage(baps3.RsWhat).AddArg("Bad argument"))
}
return append(msgs, h.makeRsAutoAdvance())
}
// Appends the downstream service's version (from the OHAI) to the listd version.
func (h *hub) makeRsOhai() *baps3.Message {
return baps3.NewMessage(baps3.RsOhai).AddArg("listd " + LD_VERSION + "/" + h.downstreamState.Identifier)
}
func makeBadCommandMsgs() []*baps3.Message {
return []*baps3.Message{baps3.NewMessage(baps3.RsWhat).AddArg("Bad command")}
}