package windscribe

import (
	"context"
	"io"
	"net/http"
	"net/http/cookiejar"
)

const (
	ReadLimit int64 = 128 * 1024
)

type Client interface {
	Auth(context.Context, Auth) error
	MatchingPort(context.Context) error
}

type client struct {
	hc   *http.Client
	auth Auth
	csrf *CSRF
}

func New() Client {
	jar, err := cookiejar.New(nil)
	if err != nil {
		panic(err)
	}

	c := &client{
		hc: &http.Client{
			Jar: jar,
			Transport: &http.Transport{
				Proxy: http.ProxyFromEnvironment,
			},
		},
	}

	return c
}

func fillReq(r *http.Request) {
	r.Header.Set("Connection", "keep-alive")

	hdr := map[string]string{
		"cache-control":             `max-age=0`,
		"sec-ch-ua":                 `"Not/A)Brand";v="99", "Google Chrome";v="115", "Chromium";v="115"`,
		"sec-ch-ua-mobile":          `?0`,
		"sec-ch-ua-platform":        `"macOS"`,
		"origin":                    `https://windscribe.com`,
		"dnt":                       `1`,
		"upgrade-insecure-requests": `1`,
		"content-type":              `application/x-www-form-urlencoded`,
		"user-agent":                `Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36`,
		"accept":                    `text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7`,
		"sec-fetch-site":            `same-origin`,
		"sec-fetch-mode":            `navigate`,
		"sec-fetch-user":            `?1`,
		"sec-fetch-dest":            `document`,
		"referer":                   `https://windscribe.com/login`,
		"accept-language":           `en-US,en;q=0.9,fr;q=0.8`,
		"sec-gpc":                   `1`,
	}

	for k, v := range hdr {
		r.Header.Set(k, v)
	}
}

func cleanupBody(body io.ReadCloser) {
	io.Copy(io.Discard, &io.LimitedReader{
		R: body,
		N: ReadLimit,
	})
	body.Close()
}