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85 lines
2.5 KiB
Go
85 lines
2.5 KiB
Go
// Package eventmod contains an actor to modify event data during rule
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// execution by adding fields (template variables)
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package eventmod
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import (
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"encoding/json"
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"fmt"
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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/plugins"
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)
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const actorName = "eventmod"
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var formatMessage plugins.MsgFormatter
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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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args.RegisterActor(actorName, func() plugins.Actor { return &actor{} })
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args.RegisterActorDocumentation(plugins.ActionDocumentation{
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Description: "Add custom fields to the event to be used as template variables later on",
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Name: "Add Fields to Event",
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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: "Fields to set in the event (must produce valid JSON: `map[string]any`)",
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Key: "fields",
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Name: "Fields",
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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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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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fd, err := formatMessage(attrs.MustString("fields", ptrStringEmpty), m, r, eventData)
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if err != nil {
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return false, errors.Wrap(err, "executing fields template")
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}
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if fd == "" {
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return false, errors.New("fields template evaluated to empty string")
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}
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fields := map[string]any{}
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if err = json.Unmarshal([]byte(fd), &fields); err != nil {
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return false, errors.Wrap(err, "parsing fields")
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}
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eventData.SetFromData(fields)
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return false, nil
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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: "fields", NonEmpty: true, Type: fieldcollection.SchemaFieldTypeString}),
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fieldcollection.MustHaveNoUnknowFields,
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helpers.SchemaValidateTemplateField(tplValidator, "fields"),
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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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