package analytics

import (
	"context"
	"encoding/json"

	"github.com/hibiken/asynq"
)

type EventPublisher interface {
	Publish(ctx context.Context, event AnalyticsEvent) error
}

type AsynqClient interface {
	EnqueueContext(ctx context.Context, task *asynq.Task, opts ...asynq.Option) (*asynq.TaskInfo, error)
}

type asynqEventPublisher struct {
	client AsynqClient
}

func NewEventPublisher(client AsynqClient) EventPublisher {
	return &asynqEventPublisher{client: client}
}

func (p *asynqEventPublisher) Publish(ctx context.Context, event AnalyticsEvent) error {
	payload, err := json.Marshal(event)
	if err != nil {
		return err
	}

	task := asynq.NewTask(string(event.EventType), payload)
	_, err = p.client.EnqueueContext(ctx, task, asynq.Queue(QueueAnalytics))
	return err
}