package shortify

import (
	"sync"

	"git.tijl.dev/tijl/shortify/pkg/generation"
	"github.com/hashicorp/golang-lru"
	bolt "go.etcd.io/bbolt"
)

type Server struct {
	storage       *Storage
	prefixManager *PrefixManager
	serverGen     *generation.Generator
	cache         *lru.Cache
	cacheLock     sync.RWMutex

	dataFolder string

	logChan chan VisitLog
}

type Config struct {
	DataFolder string
}

func New(cfg Config) (*Server, error) {
	db, err := bolt.Open(cfg.DataFolder+"/database.db", 0600, nil)
	if err != nil {
		return nil, err
	}

	prefixManager, err := NewPrefixManager(db)
	if err != nil {
		return nil, err
	}

	storage, err := NewStorage(db)
	if err != nil {
		return nil, err
	}

	cache, _ := lru.New(10000)

	s := &Server{
		dataFolder:    cfg.DataFolder,
		storage:       storage,
		cache:         cache,
		serverGen:     generation.NewGenerator(0),
		prefixManager: prefixManager,
		logChan:       make(chan VisitLog, 1000),
	}

	go s.startLogging()

	return s, nil
}