package changes

import (
	"log"
	"sync"
	"time"

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

var collection *mgo.Collection
var submitMutex sync.Mutex

func list(query bson.M, limit int) ([]models.Change, error) {
	changes := make([]models.Change, 0, 64)
	err := collection.Find(query).Limit(limit).Sort("-date").All(&changes)

	return changes, err
}

func init() {
	store.HandleInit(func(db *mgo.Database) {
		collection = db.C("common.changes")

		collection.EnsureIndexKey("date")
		collection.EnsureIndexKey("author")
		collection.EnsureIndexKey("keys")

		err := collection.EnsureIndex(mgo.Index{
			Name:        "expiry",
			Key:         []string{"date"},
			ExpireAfter: time.Hour * 2400, // 100 days
		})
		if err != nil {
			log.Fatalln(err)
		}
	})
}