74 lines
2.2 KiB
Go
74 lines
2.2 KiB
Go
/*
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* MumbleDJ
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* By Matthieu Grieger
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* commands/currenttrack.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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"bytes"
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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/matthieugrieger/mumbledj/interfaces"
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"github.com/spf13/viper"
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)
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// ListTracksCommand is a command that lists the tracks that are currently
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// in the queue.
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type ListTracksCommand struct{}
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// Aliases returns the current aliases for the command.
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func (c *ListTracksCommand) Aliases() []string {
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return viper.GetStringSlice("commands.listtracks.aliases")
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}
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// Description returns the description for the command.
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func (c *ListTracksCommand) Description() string {
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return viper.GetString("commands.listtracks.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 *ListTracksCommand) IsAdminCommand() bool {
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return viper.GetBool("commands.listtracks.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 *ListTracksCommand) Execute(user *gumble.User, args ...string) (string, bool, error) {
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if DJ.Queue.Length() == 0 {
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return "", true, errors.New("There are no tracks currently in the queue")
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}
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numTracksToList := DJ.Queue.Length()
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if len(args) != 0 {
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if parsedNum, err := strconv.Atoi(args[0]); err == nil {
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numTracksToList = parsedNum
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} else {
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return "", true, errors.New("An invalid integer was supplied")
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}
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}
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var buffer bytes.Buffer
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DJ.Queue.Traverse(func(i int, track interfaces.Track) {
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if i < numTracksToList {
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buffer.WriteString(fmt.Sprintf("<b>%d</b>: \"%s\", added by <b>%s</b>.<br>",
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i+1, track.GetTitle(), track.GetSubmitter()))
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}
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})
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return buffer.String(), true, nil
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}
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