package tcp

import (
	"context"
	"net"

	"github.com/go-gost/gost/pkg/components/dialer"
	"github.com/go-gost/gost/pkg/logger"
	"github.com/go-gost/gost/pkg/registry"
)

func init() {
	registry.RegisterDialer("tcp", NewDialer)
}

type Dialer struct {
	md     metadata
	logger logger.Logger
}

func NewDialer(opts ...dialer.Option) dialer.Dialer {
	options := &dialer.Options{}
	for _, opt := range opts {
		opt(options)
	}

	return &Dialer{
		logger: options.Logger,
	}
}

func (d *Dialer) Init(md dialer.Metadata) (err error) {
	d.md, err = d.parseMetadata(md)
	if err != nil {
		return
	}
	return nil
}

func (d *Dialer) Dial(ctx context.Context, addr string, opts ...dialer.DialOption) (net.Conn, error) {
	var options dialer.DialOptions
	for _, opt := range opts {
		opt(&options)
	}

	dial := options.DialFunc
	if dial != nil {
		return dial(ctx, addr)
	}

	var netd net.Dialer
	return netd.DialContext(ctx, "tcp", addr)
}

func (d *Dialer) parseMetadata(md dialer.Metadata) (m metadata, err error) {
	return
}