package config

import (
	"flag"

	"github.com/redis/go-redis/v9"
)

type Config struct {
	Address       string
	StoragePath   string
	StaticPath    string
	TileSize      int
	CanvasSize    int
	SaveFrequency int
	Timeout       int
	Redis         redis.Options
}

var conf *Config = nil

func GetConfig() Config {
	if conf == nil {
		conf = &Config{}
		flag.StringVar(&conf.Address, "address", ":8080", "API base")
		flag.StringVar(&conf.StoragePath, "storage", "/data", "image storage path")
		flag.StringVar(&conf.StaticPath, "static", "/static", "web static path")
		flag.IntVar(&conf.TileSize, "tile_size", 128, "width of a tile")
		flag.IntVar(&conf.CanvasSize, "canvas_size", 4, "width of the canvas (in tiles)")
		flag.IntVar(&conf.SaveFrequency, "save", 60, "seconds between saves")
		flag.IntVar(&conf.Timeout, "timeout", 60, "timeout after placing a pixel")
		flag.StringVar(&conf.Redis.Addr, "redis_address", "redis:6379", "address of the redis server")
		flag.StringVar(&conf.Redis.Password, "redis_password", "redis", "password of the redis server")
		flag.IntVar(&conf.Redis.DB, "redis_db", 0, "redis db")
		flag.Parse()
	}
	return *conf
}