package chapters

import (
	"time"

	"git.aiterp.net/rpdata/api/models"
	"github.com/globalsign/mgo/bson"
)

// Move updates the chapter, moving it to the given story.
func Move(chapter models.Chapter, story models.Story) (*models.Chapter, error) {
	now := time.Now()

	err := collection.UpdateId(chapter.ID, bson.M{"$set": bson.M{"editedDate": now, "storyId": story.ID}})
	if err != nil {
		return nil, err
	}

	chapter.EditedDate = now

	if chapter.CreatedDate.After(story.UpdatedDate) {
		if err := storyCollection.UpdateId(story.ID, bson.M{"$set": bson.M{"updatedDate": chapter.CreatedDate}}); err == nil {
			story.UpdatedDate = chapter.CreatedDate
		}
	}

	return &chapter, nil
}