package posts

import (
	"git.aiterp.net/rpdata/api/internal/counter"
	"git.aiterp.net/rpdata/api/models"
)

// AddMany adds multiple posts in on query. Each post gets a new ID and is associated with the log.
func AddMany(log models.Log, posts []models.Post) ([]models.Post, error) {
	docs := make([]interface{}, len(posts))
	copies := make([]models.Post, len(posts))

	mutex.RLock()
	defer mutex.RUnlock()

	startPosition, err := counter.NextMany("next_post_id", log.ShortID, len(posts))
	if err != nil {
		return nil, err
	}

	for i, post := range posts {
		post.ID = generateID(post.Time)
		post.LogID = log.ShortID
		post.Position = startPosition + i

		docs[i] = post
		copies[i] = post
	}

	err = collection.Insert(docs...)
	if err != nil {
		return nil, err
	}

	return copies, nil
}