71 lines
1.8 KiB
Go
71 lines
1.8 KiB
Go
package rabbitmq
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import (
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"context"
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"errors"
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"time"
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)
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type CommentMQ struct {
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*RabbitMQ
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}
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const (
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commentExchange = "comment.events"
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commentQueue = "comment.events"
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commentBindingKey = "comment.*"
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commentPublishRK = "comment.publish"
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commentDeleteRK = "comment.delete"
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)
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type CommentEvent struct {
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EventID string `json:"event_id"`
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Action string `json:"action"`
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CommentID uint `json:"comment_id,omitempty"`
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Username string `json:"username,omitempty"`
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VideoID uint `json:"video_id,omitempty"`
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AuthorID uint `json:"author_id,omitempty"`
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Content string `json:"content,omitempty"`
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OccurredAt time.Time `json:"occurred_at"`
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}
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func NewCommentMQ(base *RabbitMQ) (*CommentMQ, error) {
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if base == nil {
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return nil, errors.New("rabbitmq base is nil")
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}
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if err := base.DeclareTopic(commentExchange, commentQueue, commentBindingKey); err != nil {
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return nil, err
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}
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return &CommentMQ{RabbitMQ: base}, nil
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}
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func (c *CommentMQ) Publish(ctx context.Context, username string, videoID, authorID uint, content string) error {
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return c.publish(ctx, "publish", commentPublishRK, CommentEvent{
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Username: username,
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VideoID: videoID,
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AuthorID: authorID,
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Content: content,
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})
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}
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func (c *CommentMQ) Delete(ctx context.Context, commentID uint) error {
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return c.publish(ctx, "delete", commentDeleteRK, CommentEvent{
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CommentID: commentID,
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})
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}
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func (c *CommentMQ) publish(ctx context.Context, action, routingKey string, evt CommentEvent) error {
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if c == nil || c.RabbitMQ == nil {
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return errors.New("comment mq is not initialized")
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}
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id, err := newEventID(16)
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if err != nil {
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return err
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}
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evt.EventID = id
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evt.Action = action
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evt.OccurredAt = time.Now().UTC()
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return c.PublishJSON(ctx, commentExchange, routingKey, evt)
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}
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