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//
// rhctl
//
// Copyright (C) 2009-2016 Christian Pointner <equinox@helsinki.at>
//
// This file is part of rhctl.
//
// rhctl is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// any later version.
//
// rhctl is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with rhctl. If not, see <http://www.gnu.org/licenses/>.
//
package main
import (
"fmt"
"strconv"
"strings"
)
type SwitchUnitID uint
func (u SwitchUnitID) String() string {
return strconv.FormatUint(uint64(u), 10)
}
func (u *SwitchUnitID) FromString(str string) error {
vuint, err := strconv.ParseUint(str, 10, 32)
if err != nil {
return err
}
if vuint > 3 {
return fmt.Errorf("switch unit ID is out of range")
}
*u = SwitchUnitID(vuint)
return nil
}
func (u *SwitchUnitID) UnmarshalTOML(data []byte) error {
return u.FromString(string(data))
}
type SwitchInputNum uint
func (i SwitchInputNum) String() string {
return strconv.FormatUint(uint64(i), 10)
}
func (i *SwitchInputNum) FromString(str string) error {
vuint, err := strconv.ParseUint(str, 10, 32)
if err != nil {
return err
}
if vuint < 1 || vuint > 8 {
return fmt.Errorf("switch input number is out of range")
}
*i = SwitchInputNum(vuint)
return nil
}
type SwitchOutputNum uint
func (o SwitchOutputNum) String() string {
return strconv.FormatUint(uint64(o), 10)
}
func (o *SwitchOutputNum) FromString(str string) error {
vuint, err := strconv.ParseUint(str, 10, 32)
if err != nil {
return err
}
if vuint < 1 || vuint > 2 {
return fmt.Errorf("switch output number is out of range")
}
*o = SwitchOutputNum(vuint)
return nil
}
type SwitchRelayNum uint
func (r SwitchRelayNum) String() string {
return strconv.FormatUint(uint64(r), 10)
}
func (r *SwitchRelayNum) FromString(str string) error {
vuint, err := strconv.ParseUint(str, 10, 32)
if err != nil {
return err
}
if vuint < 1 || vuint > 8 {
return fmt.Errorf("switch relay number is out of range")
}
*r = SwitchRelayNum(vuint)
return nil
}
type SwitchOCNum uint
func (o SwitchOCNum) String() string {
return strconv.FormatUint(uint64(o), 10)
}
func (o *SwitchOCNum) FromString(str string) error {
vuint, err := strconv.ParseUint(str, 10, 32)
if err != nil {
return err
}
if vuint < 1 || vuint > 8 {
return fmt.Errorf("switch OC number is out of range")
}
*o = SwitchOCNum(vuint)
return nil
}
type SwitchCmdString string
const (
SwitchCmdStateAudio SwitchCmdString = "*uSL"
SwitchCmdStateGPI SwitchCmdString = "*uSPA"
SwitchCmdStateOC SwitchCmdString = "*uSO"
SwitchCmdStateRelay SwitchCmdString = "*uSR"
SwitchCmdStateSilence SwitchCmdString = "*uSS"
SwitchCmdAudioApplyInput SwitchCmdString = "*uiio"
SwitchCmdAudioApplyInputAll SwitchCmdString = "*uiiA"
SwitchCmdAudioAddInputTo1 SwitchCmdString = "*uii3"
SwitchCmdAudioAddInputTo2 SwitchCmdString = "*uii4"
SwitchCmdAudioRemoveInputFrom1 SwitchCmdString = "*uii5"
SwitchCmdAudioRemoveInputFrom2 SwitchCmdString = "*uii6"
SwitchCmdAudioMuteInput SwitchCmdString = "*uiiMo"
SwitchCmdAudioMuteInputAll SwitchCmdString = "*uiiMA"
SwitchCmdAudioMuteOutput SwitchCmdString = "*uMo"
SwitchCmdAudioMuteOutputAll SwitchCmdString = "*uMA"
SwitchCmdAudioFadeUpInput SwitchCmdString = "*uFUii"
SwitchCmdAudioFadeDownInput SwitchCmdString = "*uFDii"
SwitchCmdOCUnlatch SwitchCmdString = "*uOOcF"
SwitchCmdOCLatch SwitchCmdString = "*uOOcL"
SwitchCmdOCPulse SwitchCmdString = "*uOOcP"
SwitchCmdRelayUnlatch SwitchCmdString = "*uORrF"
SwitchCmdRelayLatch SwitchCmdString = "*uORrL"
SwitchCmdRelayPulse SwitchCmdString = "*uORrP"
)
func (c SwitchCmdString) Generate(args ...interface{}) string {
s := string(c)
for _, arg := range args {
switch arg.(type) {
case SwitchUnitID:
s = strings.Replace(s, "u", fmt.Sprintf("%1d", arg.(SwitchUnitID)), -1)
case SwitchInputNum:
s = strings.Replace(s, "ii", fmt.Sprintf("%02d", arg.(SwitchInputNum)), -1)
case SwitchOutputNum:
s = strings.Replace(s, "o", fmt.Sprintf("%1d", arg.(SwitchOutputNum)), -1)
case SwitchRelayNum:
s = strings.Replace(s, "r", fmt.Sprintf("%1d", arg.(SwitchRelayNum)), -1)
case SwitchOCNum:
s = strings.Replace(s, "c", fmt.Sprintf("%1d", arg.(SwitchOCNum)), -1)
}
}
return s
}
type SwitchCommand struct {
Cmd SwitchCmdString
Args []interface{}
Response chan<- interface{}
}
func SwitchCommandParseState(args []string) (cmdstr SwitchCmdString, cmdargs []interface{}, err error) {
if len(args) == 0 {
err = fmt.Errorf("missing argument <state-type>")
return
}
switch args[0] {
case "audio":
cmdstr = SwitchCmdStateAudio
case "gpi":
cmdstr = SwitchCmdStateGPI
case "oc":
cmdstr = SwitchCmdStateOC
case "relay":
cmdstr = SwitchCmdStateRelay
case "silence":
cmdstr = SwitchCmdStateSilence
default:
err = fmt.Errorf("unknown state-type: '%s'", args[0])
return
}
return
}
func SwitchCommandParseAudio(args []string) (cmdstr SwitchCmdString, cmdargs []interface{}, err error) {
if len(args) < 2 || len(args) > 3 {
err = fmt.Errorf("wrong number of arguments")
return
}
onum := SwitchOutputNum(0)
if args[0] != "all" {
if err = onum.FromString(args[0]); err != nil {
return
}
cmdargs = append(cmdargs, onum)
}
inum := SwitchInputNum(0)
if len(args) == 3 {
if err = inum.FromString(args[2]); err != nil {
return
}
cmdargs = append(cmdargs, inum)
}
switch args[1] {
case "apply":
if len(args) != 3 {
err = fmt.Errorf("wrong number of arguments")
return
}
if onum == 0 {
cmdstr = SwitchCmdAudioApplyInputAll
} else {
cmdstr = SwitchCmdAudioApplyInput
}
case "add":
if len(args) != 3 {
err = fmt.Errorf("wrong number of arguments")
return
}
switch onum {
case 1:
cmdstr = SwitchCmdAudioAddInputTo1
case 2:
cmdstr = SwitchCmdAudioAddInputTo2
default:
err = fmt.Errorf("this operation cannot be applied to all outputs")
return
}
case "remove":
if len(args) != 3 {
err = fmt.Errorf("wrong number of arguments")
return
}
switch onum {
case 1:
cmdstr = SwitchCmdAudioRemoveInputFrom1
case 2:
cmdstr = SwitchCmdAudioRemoveInputFrom2
default:
err = fmt.Errorf("this operation cannot be applied to all outputs")
return
}
case "up":
if len(args) != 3 {
err = fmt.Errorf("wrong number of arguments")
return
}
if onum != 1 {
err = fmt.Errorf("this operation is only allowed on output 1")
return
}
cmdstr = SwitchCmdAudioFadeUpInput
case "down":
if len(args) != 3 {
err = fmt.Errorf("wrong number of arguments")
return
}
if onum != 1 {
err = fmt.Errorf("this operation is only allowed on output 1")
return
}
cmdstr = SwitchCmdAudioFadeDownInput
case "mute":
if len(args) == 3 {
if onum == 0 {
cmdstr = SwitchCmdAudioMuteInputAll
} else {
cmdstr = SwitchCmdAudioMuteInput
}
} else {
if onum == 0 {
cmdstr = SwitchCmdAudioMuteOutputAll
} else {
cmdstr = SwitchCmdAudioMuteOutput
}
}
default:
err = fmt.Errorf("unknown operation: '%s', must be one of latch, unlatch, pulse", args[1])
return
}
return
}
func SwitchCommandParseRelay(args []string) (cmdstr SwitchCmdString, cmdargs []interface{}, err error) {
if len(args) != 2 {
err = fmt.Errorf("wrong number of arguments, expecting: <relay-num> (latch|unlatch|pulse)")
return
}
var num SwitchRelayNum
if err = num.FromString(args[0]); err != nil {
return
}
cmdargs = append(cmdargs, num)
switch args[1] {
case "latch":
cmdstr = SwitchCmdRelayLatch
case "unlatch":
cmdstr = SwitchCmdRelayUnlatch
case "pulse":
cmdstr = SwitchCmdRelayPulse
default:
err = fmt.Errorf("unknown operation: '%s', must be one of latch, unlatch, pulse", args[1])
return
}
return
}
func SwitchCommandParseOC(args []string) (cmdstr SwitchCmdString, cmdargs []interface{}, err error) {
if len(args) != 2 {
err = fmt.Errorf("wrong number of arguments, expecting: <oc-num> (latch|unlatch|pulse)")
return
}
var num SwitchOCNum
if err = num.FromString(args[0]); err != nil {
return
}
cmdargs = append(cmdargs, num)
switch args[1] {
case "latch":
cmdstr = SwitchCmdOCLatch
case "unlatch":
cmdstr = SwitchCmdOCUnlatch
case "pulse":
cmdstr = SwitchCmdOCPulse
default:
err = fmt.Errorf("unknown operation: '%s', must be one of latch, unlatch, pulse", args[1])
return
}
return
}
func NewSwitchCommandFromStrings(cmd string, args ...string) (c *SwitchCommand, err error) {
c = &SwitchCommand{}
switch cmd {
case "state":
c.Cmd, c.Args, err = SwitchCommandParseState(args)
case "out":
c.Cmd, c.Args, err = SwitchCommandParseAudio(args)
case "relay":
c.Cmd, c.Args, err = SwitchCommandParseRelay(args)
case "oc":
c.Cmd, c.Args, err = SwitchCommandParseOC(args)
default:
return nil, fmt.Errorf("unknown command '%s'", cmd)
}
return
}
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