package grib

import (
	"time"

	"git.intra.yksa.space/gsn/predictor/internal/pkg/errcodes"
	env "github.com/caarlos0/env/v11"
)

type Config struct {
	Dir        string        `env:"DIR" envDefault:"C:/tmp/grib"`
	TTL        time.Duration `env:"TTL" envDefault:"48h"`
	CacheTTL   time.Duration `env:"CACHE_TTL" envDefault:"1h"`
	Parallel   int           `env:"PARALLEL" envDefault:"8"`
	DatasetURL string        `env:"DATASET_URL" envDefault:"https://nomads.ncep.noaa.gov/pub/data/nccf/com/gfs/prod"`
	// S3 configuration
	UseS3      bool          `env:"USE_S3" envDefault:"true"`
	S3Bucket   string        `env:"S3_BUCKET" envDefault:"noaa-gfs-bdp-pds"`
	S3Region   string        `env:"S3_REGION" envDefault:"us-east-1"`
	S3Timeout  time.Duration `env:"S3_TIMEOUT" envDefault:"300s"`
}

func NewConfig() (*Config, error) {
	cfg := &Config{}
	if err := env.ParseWithOptions(cfg, env.Options{
		PrefixTagName: "GSN_PREDICTOR_GRIB_",
	}); err != nil {
		return nil, errcodes.Wrap(err, "failed to parse GRIB config")
	}

	return cfg, nil
}