package client

import (
    "bytes"
    "fmt"
    "golang.org/x/net/html"
    "net/http"
    "net/http/cookiejar"
    "net/url"
)

const baseUrl = "https://www.okcupid.com"

type OKCupidClient struct {
    username string
    password string
    client   *http.Client
}

func New(username, password string) *OKCupidClient {
    cookieJar, _ := cookiejar.New(nil)
    client := &http.Client{
        Jar: cookieJar,
    }
    return &OKCupidClient{username: username, password: password, client: client}
}

func (okc *OKCupidClient) DoLogin() {

    loginUrl := baseUrl + "/login"

    data := url.Values{}
    data.Add("username", okc.username)
    data.Add("password", okc.password)

    request, _ := http.NewRequest("POST", loginUrl, bytes.NewBufferString(data.Encode()))
    request.Header.Add("Content-Type", "application/x-www-form-urlencoded")

    okc.client.Do(request)
}

func (okc *OKCupidClient) FetchProfile(username string) {
    profileUrl := baseUrl + "/profile/" + username
    response, _ := okc.client.Get(profileUrl)
    z := html.NewTokenizer(response.Body)
    depth := 0
    for {
        tt := z.Next()
        switch tt {
        case html.ErrorToken:
            return
        case html.TextToken:
            if depth > 0 {
                fmt.Println(string(z.Text()))
            }
        case html.StartTagToken, html.EndTagToken:
            _, val, _ := z.TagAttr()
            tn, _ := z.TagName()
            if string(val) == "essays2015-essay-content" {
                if tt == html.StartTagToken {
                    depth++
                }
            } else {
                if depth > 0 && string(tn) == "div" {
                    depth--
                }
            }
        }

    }
}