package namespace

import (
	//	"time"
	"caj-larsson/bog/dataswamp/namespace"
)

type Repository struct {
	IdIdx   map[int64]*namespace.Namespace
	NameIdx map[string]*namespace.Namespace
	NextId  int64
}

func NewRepository() *Repository {
	r := new(Repository)
	r.NextId = 0
	r.IdIdx = make(map[int64]*namespace.Namespace)
	r.NameIdx = make(map[string]*namespace.Namespace)
	return r
}

func (r *Repository) Create(ns namespace.Namespace) (*namespace.Namespace, error) {
	r.NextId += 1
	ns.ID = r.NextId

	r.IdIdx[ns.ID] = &ns
	r.NameIdx[ns.Name] = &ns
	return &ns, nil
}

func (r *Repository) All() ([]namespace.Namespace, error) {
	ns := make([]namespace.Namespace, 0, len(r.IdIdx))

	for _, value := range r.IdIdx {
		ns = append(ns, *value)
	}
	return ns, nil
}

func (r *Repository) GetByName(name string) (*namespace.Namespace, error) {
	ns, exists := r.NameIdx[name]
	if exists {
		return ns, nil
	}
	return nil, namespace.ErrNotExists
}

func (r *Repository) Update(id int64, ns namespace.Namespace) (*namespace.Namespace, error) {
	original := *r.IdIdx[id]
	ns.ID = id
	r.IdIdx[id] = &ns
	r.NameIdx[original.Name] = &ns
	return &ns, nil
}

func (r *Repository) Delete(id int64) error {
	original := *r.IdIdx[id]
	delete(r.NameIdx, original.Name)
	delete(r.IdIdx, original.ID)
	return nil
}