package cache

import  (
	"time"
	"sync"

	"openreplay/backend/pkg/db/postgres"
	. "openreplay/backend/pkg/db/types"
)

type ProjectMeta struct {
	*Project
	expirationTime time.Time 
}

// !TODO: remove old sessions by timeout to avoid memleaks

/* 
 *  Cache layer around the stateless PG adapter
**/
type PGCache struct {
	*postgres.Conn
	sessions map[uint64]*Session
	projects  map[uint32]*ProjectMeta
	projectsByKeys sync.Map // map[string]*ProjectMeta
	projectExpirationTimeout time.Duration
}

// TODO: create conn automatically
func NewPGCache(pgConn *postgres.Conn, projectExpirationTimeoutMs int64) *PGCache {
	return &PGCache{
		Conn: pgConn,
		sessions: make(map[uint64]*Session),
		projects: make(map[uint32]*ProjectMeta),
		//projectsByKeys: make(map[string]*ProjectMeta),
		projectExpirationTimeout: time.Duration(1000 * projectExpirationTimeoutMs),
	}
}