package images

import (
	"os"

	"git.schreifuchs.ch/schreifuchs/schreifuchs.ch/internal/pkg/config"
	"github.com/valkey-io/valkey-go"
	"golang.org/x/sync/semaphore"
)

type Options struct {
	Width   int // max width, 0 is unlimited
	Height  int // max Height, 0 is unlimited
	Quality int // quality of the output jpeg
}

type Service struct {
	fs    fileSystem
	cache valkey.Client
	seph  *semaphore.Weighted
	cfg   *config.Image
}

func New(fs fileSystem, cfg *config.Image, cache valkey.Client) *Service {
	return &Service{
		fs:    fs,
		cache: cache,
		seph:  semaphore.NewWeighted(cfg.Concurency),
		cfg:   cfg,
	}
}

type fileSystem interface {
	Read(path string) ([]byte, error)
	Stat(path string) (os.FileInfo, error)
}