package logs

import (
	"fmt"
	"log"
	"time"

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

var collection *mgo.Collection
var postCollection *mgo.Collection

func find(query interface{}) (models.Log, error) {
	log := models.Log{}
	err := collection.Find(query).One(&log)
	if err != nil {
		return models.Log{}, err
	}

	return log, nil
}

func list(query interface{}, limit int) ([]models.Log, error) {
	logs := make([]models.Log, 0, 64)
	err := collection.Find(query).Limit(limit).Sort("-date").All(&logs)
	if err != nil {
		return nil, err
	}

	return logs, nil
}

func iter(query interface{}, limit int) *mgo.Iter {
	return collection.Find(query).Sort("-date").Limit(limit).Batch(8).Iter()
}

func makeLogID(date time.Time, channel string) string {
	return fmt.Sprintf("%s%03d_%s", date.UTC().Format("2006-01-02_150405"), (date.Nanosecond() / int(time.Millisecond/time.Nanosecond)), channel[1:])
}

func init() {
	store.HandleInit(func(db *mgo.Database) {
		collection = db.C("logbot3.logs")
		postCollection = db.C("logbot3.posts")

		collection.EnsureIndexKey("date")
		collection.EnsureIndexKey("channel")
		collection.EnsureIndexKey("characterIds")
		collection.EnsureIndexKey("event")
		collection.EnsureIndex(mgo.Index{
			Key: []string{"channel", "open"},
		})
		err := collection.EnsureIndex(mgo.Index{
			Key:      []string{"shortId"},
			Unique:   true,
			DropDups: true,
		})
		if err != nil {
			log.Fatalln("init logbot3.logs:", err)
		}
	})
}