From 3d8206bf7883b56f5adb4252c7d0c9190d541874 Mon Sep 17 00:00:00 2001
From: Christian Pointner <equinox@helsinki.at>
Date: Sun, 3 Apr 2016 02:29:47 +0200
Subject: shallow implementation of server command


diff --git a/src/rhctl/switch_control.go b/src/rhctl/switch_control.go
index a73d465..463c97e 100644
--- a/src/rhctl/switch_control.go
+++ b/src/rhctl/switch_control.go
@@ -96,9 +96,14 @@ func (ctrl *SwitchControl) handleCommand(cmd *Command) {
 	case CmdState:
 		cmd.Response <- ctrl.state
 	case CmdServer:
+		if len(cmd.Args) == 0 {
+			cmd.Response <- fmt.Errorf("no server specified")
+			return
+		}
+		cmd.Response <- ctrl.reconcile(cmd.Args[0])
 	case CmdSwitch:
 		if len(cmd.Args) == 0 {
-			rhl.Printf("SwitchCTRL: ignoring empty raw switch command")
+			cmd.Response <- fmt.Errorf("no command specified")
 			return
 		}
 		c, err := NewSwitchCommandFromStrings(cmd.Args[0], cmd.Args[1:]...)
@@ -118,15 +123,17 @@ func handleServer(in <-chan ServerState, out chan<- ServerState) {
 	}
 }
 
-func (ctrl *SwitchControl) reconcile() {
-	rhdl.Printf("SwitchCTRL: reconciling state...")
+func (ctrl *SwitchControl) reconcile(requestedServer string) (result bool) {
+	rhdl.Printf("SwitchCTRL: reconciling state... (requested server: '%s')", requestedServer)
 	// TODO: set mood dependent on overall-state
 
 	// TODO: send out commands to switch, server to get missing infos
 
-	// TODO: change active server it fails
+	// TODO: change active server it fails or on request
+	//       return true if requested server got selected
 
 	// TODO: change switch output mappings if servers change channels or fail
+	return
 }
 
 func (ctrl *SwitchControl) Run() {
@@ -137,7 +144,7 @@ func (ctrl *SwitchControl) Run() {
 		go handleServer(srv.StateChanges, serverStateChanges)
 	}
 
-	ctrl.reconcile()
+	ctrl.reconcile("")
 	for {
 		select {
 		case update := <-ctrl.sw.Updates:
@@ -150,13 +157,13 @@ func (ctrl *SwitchControl) Run() {
 			rhdl.Printf("got switch state update: %+v", state)
 			ctrl.Updates.Pub(state, "switch:state")
 			ctrl.state.Switch = state
-			ctrl.reconcile()
+			ctrl.reconcile("")
 			ctrl.Updates.Pub(ctrl.state, "state")
 		case state := <-serverStateChanges:
 			rhdl.Printf("got server state update: %+v", state)
 			ctrl.Updates.Pub(state, "server:state")
 			ctrl.state.Server[state.Name] = state
-			ctrl.reconcile()
+			ctrl.reconcile("")
 			ctrl.Updates.Pub(ctrl.state, "state")
 		case cmd := <-ctrl.Commands:
 			ctrl.handleCommand(cmd)
diff --git a/src/rhctl/telnet.go b/src/rhctl/telnet.go
index e4044ef..a6a53fe 100644
--- a/src/rhctl/telnet.go
+++ b/src/rhctl/telnet.go
@@ -139,8 +139,19 @@ func telnetCmdListen(c *telgo.Client, args []string, ctrl *SwitchControl) bool {
 }
 
 func telnetCmdServer(c *telgo.Client, args []string, ctrl *SwitchControl) bool {
-	ctrl.Commands <- &Command{Type: CmdServer}
-	// TODO: implement this
+	resp := make(chan interface{})
+	ctrl.Commands <- &Command{Type: CmdServer, Args: args[1:], Response: resp}
+
+	r := <-resp
+	switch r.(type) {
+	case error:
+		c.Sayln("%v", r)
+	case bool:
+		if !r.(bool) {
+			c.Sayln("the switch-over was denied - is the requested server alive?")
+		}
+	}
+
 	return false
 }
 
@@ -200,7 +211,8 @@ func telnetHelp(c *telgo.Client, args []string) bool {
 			return false
 		case "switch":
 			c.Sayln("usage: switch <cmd> [ [ <arg1> ] ... ]")
-			c.Sayln("   send commands to tha audio switch directley.")
+			c.Sayln("   send commands to tha audio switch directly.")
+			// TODO: print help text for raw switch commands
 			return false
 		}
 		fallthrough
-- 
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