// Copyright (c) Tailscale Inc & contributors
// SPDX-License-Identifier: BSD-3-Clause

package derphttp

import (
	"context"
	"net"
	"net/url"

	"tailscale.com/tailcfg"
)

func SetTestHookWatchLookConnectResult(f func(connectError error, wasSelfConnect bool) (keepRunning bool)) {
	testHookWatchLookConnectResult = f
}

func (c *Client) DialNodeUsingProxy(ctx context.Context, n *tailcfg.DERPNode, proxyURL *url.URL) (net.Conn, error) {
	return c.dialNodeUsingProxy(ctx, n, proxyURL)
}

// breakConnection breaks the connection, which should trigger a reconnect.
func (c *Client) BreakConnection(brokenClient *Client) {
	c.mu.Lock()
	defer c.mu.Unlock()
	if c.client != brokenClient.client {
		return
	}
	if c.netConn != nil {
		c.netConn.Close()
		c.netConn = nil
	}
	c.client = nil
}

var RetryInterval = &retryInterval