mirror of
https://github.com/Luzifer/twitch-bot.git
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135 lines
3.8 KiB
Go
135 lines
3.8 KiB
Go
// Package commercial contains an actor to run commercials in a channel
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package commercial
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import (
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"context"
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"fmt"
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"regexp"
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"strconv"
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"strings"
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"github.com/pkg/errors"
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"gopkg.in/irc.v4"
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"github.com/Luzifer/go_helpers/v2/fieldcollection"
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"github.com/Luzifer/twitch-bot/v3/internal/helpers"
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"github.com/Luzifer/twitch-bot/v3/pkg/twitch"
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"github.com/Luzifer/twitch-bot/v3/plugins"
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)
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const (
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actorName = "commercial"
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maxCommercialDuration = 180
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)
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var (
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formatMessage plugins.MsgFormatter
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permCheckFn plugins.ChannelPermissionCheckFunc
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tcGetter func(string) (*twitch.Client, error)
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commercialChatcommandRegex = regexp.MustCompile(`^/commercial ([0-9]+)$`)
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)
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// Register provides the plugins.RegisterFunc
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func Register(args plugins.RegistrationArguments) error {
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formatMessage = args.FormatMessage
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permCheckFn = args.HasPermissionForChannel
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tcGetter = args.GetTwitchClientForChannel
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args.RegisterActor(actorName, func() plugins.Actor { return &actor{} })
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args.RegisterActorDocumentation(plugins.ActionDocumentation{
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Description: "Start Commercial",
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Name: "Commercial",
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Type: actorName,
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Fields: []plugins.ActionDocumentationField{
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{
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Default: "",
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Description: "Duration of the commercial (must not be longer than 180s and must yield an integer)",
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Key: "duration",
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Name: "Duration",
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Optional: false,
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SupportTemplate: true,
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Type: plugins.ActionDocumentationFieldTypeString,
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},
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},
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})
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args.RegisterMessageModFunc("/commercial", handleChatCommand)
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return nil
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}
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type actor struct{}
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func (actor) Execute(_ *irc.Client, m *irc.Message, r *plugins.Rule, eventData *fieldcollection.FieldCollection, attrs *fieldcollection.FieldCollection) (preventCooldown bool, err error) {
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ptrStringEmpty := func(v string) *string { return &v }("")
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durationStr, err := formatMessage(attrs.MustString("duration", ptrStringEmpty), m, r, eventData)
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if err != nil {
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return false, errors.Wrap(err, "executing duration template")
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}
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return false, startCommercial(strings.TrimLeft(plugins.DeriveChannel(m, eventData), "#"), durationStr)
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}
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func (actor) IsAsync() bool { return false }
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func (actor) Name() string { return actorName }
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func (actor) Validate(tplValidator plugins.TemplateValidatorFunc, attrs *fieldcollection.FieldCollection) (err error) {
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if err = attrs.ValidateSchema(
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fieldcollection.MustHaveField(fieldcollection.SchemaField{Name: "duration", NonEmpty: true, Type: fieldcollection.SchemaFieldTypeString}),
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helpers.SchemaValidateTemplateField(tplValidator, "duration"),
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); err != nil {
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return fmt.Errorf("validating attributes: %w", err)
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}
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return nil
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}
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func handleChatCommand(m *irc.Message) error {
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channel := strings.TrimLeft(plugins.DeriveChannel(m, nil), "#")
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matches := commercialChatcommandRegex.FindStringSubmatch(m.Trailing())
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if matches == nil {
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return errors.New("ban message does not match required format")
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}
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if err := startCommercial(channel, matches[1]); err != nil {
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return err
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}
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return plugins.ErrSkipSendingMessage
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}
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func startCommercial(channel, durationStr string) error {
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duration, err := strconv.ParseInt(durationStr, 10, 64)
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if err != nil {
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return errors.Wrap(err, "parsing duration to integer")
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}
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if duration > maxCommercialDuration {
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return errors.New("duration too long")
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}
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ok, err := permCheckFn(channel, twitch.ScopeChannelEditCommercial)
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if err != nil {
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return errors.Wrap(err, "checking for channel permissions")
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}
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if !ok {
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return errors.Errorf("channel %q is missing permission %s", channel, twitch.ScopeChannelEditCommercial)
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}
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tc, err := tcGetter(channel)
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if err != nil {
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return errors.Wrap(err, "getting channel twitch-client")
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}
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return errors.Wrap(
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tc.RunCommercial(context.Background(), channel, duration),
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"running commercial",
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)
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}
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