package tysc

import (
	"gitlab.thpeetz.de/kontor/kontor-go/pkg/dao"

	mgo "gopkg.in/mgo.v2"
	"gopkg.in/mgo.v2/bson"
)

// ParallelSetDAO extends the type BaseDAO.
type ParallelSetDAO struct {
	Db dao.BaseDAO
}

const (
	// PARALLELSETCOLLECTION defines the collection name for storing parallel sets.
	PARALLELSETCOLLECTION = "parallelSet"
	// PARALLELSETMODEL defines the name of the parallel set data model.
	PARALLELSETMODEL = "kontor.tysc.parallelSet"
)

// FindAll retrieves the list of parallel sets from the database.
func (m *ParallelSetDAO) FindAll() ([]ParallelSet, error) {
	m.Db.Connect()
	var parallelSets []ParallelSet
	err := m.Db.MongoDb.C(PARALLELSETCOLLECTION).Find(bson.M{"model": PARALLELSETMODEL}).All(&parallelSets)
	return parallelSets, err
}

// FindByID returns a parallel set with given id or returns the error.
func (m *ParallelSetDAO) FindByID(id string) (ParallelSet, error) {
	m.Db.Connect()
	var parallelSet ParallelSet
	err := m.Db.MongoDb.C(PARALLELSETCOLLECTION).FindId(bson.ObjectIdHex(id)).One(&parallelSet)
	return parallelSet, err
}

// FindByManufacturer returns a paralle set with given manufacturer or returns the error.
func (m *ParallelSetDAO) FindByManufacturer(manufacturer string) ([]ParallelSet, error) {
	m.Db.Connect()
	var parallelSets []ParallelSet
	err := m.Db.MongoDb.C(PARALLELSETCOLLECTION).Find(bson.M{"model": PARALLELSETMODEL, "manufacturer": bson.ObjectIdHex(manufacturer)}).All(&parallelSets)
	return parallelSets, err
}

// FindByName returns a parallel set with given name or returns the error.
func (m *ParallelSetDAO) FindByName(name string) (ParallelSet, error) {
	m.Db.Connect()
	var parallelSet ParallelSet
	err := m.Db.MongoDb.C(PARALLELSETCOLLECTION).Find(bson.M{"name": name, "model": PARALLELSETMODEL}).One(&parallelSet)
	return parallelSet, err
}

// Insert a parallel set into database.
func (m *ParallelSetDAO) Insert(parallelSet ParallelSet) error {
	m.Db.Connect()
	parallelSet.Model = PARALLELSETMODEL
	err := m.Db.MongoDb.C(PARALLELSETCOLLECTION).Insert(&parallelSet)
	return err
}

// Upsert a parallel set into database.
func (m *ParallelSetDAO) Upsert(parallelSet ParallelSet) (*mgo.ChangeInfo, error) {
	m.Db.Connect()
	parallelSet.Model = PARALLELSETMODEL
	info, err := m.Db.MongoDb.C(PARALLELSETCOLLECTION).Upsert(bson.M{"name": parallelSet.Name}, &parallelSet)
	return info, err
}

// Update an existing parallel set.
func (m *ParallelSetDAO) Update(parallelSet ParallelSet) error {
	m.Db.Connect()
	err := m.Db.MongoDb.C(PARALLELSETCOLLECTION).UpdateId(parallelSet.ID, &parallelSet)
	return err
}

// Delete an existing parallel set.
func (m *ParallelSetDAO) Delete(parallelSet ParallelSet) error {
	m.Db.Connect()
	err := m.Db.MongoDb.C(PARALLELSETCOLLECTION).Remove(&parallelSet)
	return err
}