73 lines
2.3 KiB
Go
73 lines
2.3 KiB
Go
/*
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* MumbleDJ
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* By Matthieu Grieger
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* commands/volume.go
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* Copyright (c) 2016 Matthieu Grieger (MIT License)
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*/
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package commands
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import (
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"errors"
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"fmt"
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"strconv"
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"github.com/layeh/gumble/gumble"
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"github.com/spf13/viper"
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)
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// VolumeCommand is a command that changes the volume of the audio output.
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type VolumeCommand struct{}
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// Aliases returns the current aliases for the command.
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func (c *VolumeCommand) Aliases() []string {
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return viper.GetStringSlice("commands.volume.aliases")
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}
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// Description returns the description for the command.
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func (c *VolumeCommand) Description() string {
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return viper.GetString("commands.volume.description")
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}
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// IsAdminCommand returns true if the command is only for admin use, and
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// returns false otherwise.
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func (c *VolumeCommand) IsAdminCommand() bool {
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return viper.GetBool("commands.volume.is_admin")
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}
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// Execute executes the command with the given user and arguments.
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// Return value descriptions:
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// string: A message to be returned to the user upon successful execution.
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// bool: Whether the message should be private or not. true = private,
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// false = public (sent to whole channel).
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// error: An error message to be returned upon unsuccessful execution.
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// If no error has occurred, pass nil instead.
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// Example return statement:
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// return "This is a private message!", true, nil
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func (c *VolumeCommand) Execute(user *gumble.User, args ...string) (string, bool, error) {
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if len(args) == 0 {
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// Send the user the current volume level.
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return fmt.Sprintf(viper.GetString("commands.volume.messages.current_volume"), DJ.Volume), true, nil
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}
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newVolume, err := strconv.ParseFloat(args[0], 32)
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if err != nil {
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return "", true, errors.New(viper.GetString("commands.volume.messages.parsing_error"))
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}
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if newVolume <= viper.GetFloat64("volume.lowest") || newVolume >= viper.GetFloat64("volume.highest") {
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return "", true, fmt.Errorf(viper.GetString("commands.volume.messages.out_of_range_error"),
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viper.GetFloat64("volume.lowest"), viper.GetFloat64("volume.highest"))
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}
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newVolume32 := float32(newVolume)
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if DJ.AudioStream != nil {
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DJ.AudioStream.Volume = newVolume32
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}
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DJ.Volume = newVolume32
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return fmt.Sprintf(viper.GetString("commands.volume.messages.volume_changed"),
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user.Name, newVolume32), false, nil
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}
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