package ctbrec.sites.chaturbate;

import static ctbrec.io.HttpConstants.*;

import java.io.IOException;
import java.net.URLEncoder;
import java.time.Instant;
import java.util.ArrayList;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

import ctbrec.Config;
import ctbrec.Model;
import ctbrec.io.HtmlParser;
import ctbrec.io.HttpClient;
import ctbrec.sites.AbstractSite;
import okhttp3.Request;
import okhttp3.Response;

public class Chaturbate extends AbstractSite {

    static String baseUrl = "https://chaturbate.com";
    public static final String AFFILIATE_LINK = "https://chaturbate.com/in/?track=default&tour=grq0&campaign=55vTi";
    public static final String REGISTRATION_LINK = "https://chaturbate.com/in/?track=default&tour=g4pe&campaign=55vTi";
    private ChaturbateHttpClient httpClient;

    @Override
    public void init() throws IOException {
        baseUrl = Config.getInstance().getSettings().chaturbateBaseUrl;
    }

    @Override
    public String getName() {
        return "Chaturbate";
    }

    @Override
    public String getBaseUrl() {
        return baseUrl;
    }

    @Override
    public String getAffiliateLink() {
        return getBaseUrl() + "/in/?track=default&tour=LQps&campaign=55vTi&room=0xb00bface";
    }

    @Override
    public Model createModel(String name) {
        ChaturbateModel m = new ChaturbateModel(this);
        m.setName(name);
        m.setUrl(getBaseUrl() + '/' + name + '/');
        m.setPreview("https://roomimg.stream.highwebmedia.com/ri/" + name + ".jpg?" + Instant.now().getEpochSecond());
        return m;
    }

    @Override
    public Double getTokenBalance() throws IOException {
        String username = Config.getInstance().getSettings().username;
        if (username == null || username.trim().isEmpty()) {
            throw new IOException("Not logged in");
        }

        String url = "https://chaturbate.com/p/" + username + "/";
        Request req = new Request.Builder()
                .url(url)
                .header(USER_AGENT, Config.getInstance().getSettings().httpUserAgent)
                .build();
        Response resp = getHttpClient().execute(req);
        if (resp.isSuccessful()) {
            String profilePage = resp.body().string();
            String tokenText = HtmlParser.getText(profilePage, "span.tokencount");
            int tokens = Integer.parseInt(tokenText);
            return (double) tokens;
        } else {
            throw new IOException("HTTP response: " + resp.code() + " - " + resp.message());
        }
    }

    @Override
    public String getBuyTokensLink() {
        return AFFILIATE_LINK;
    }

    @Override
    public synchronized boolean login() throws IOException {
        return credentialsAvailable() && getHttpClient().login();
    }

    @Override
    public HttpClient getHttpClient() {
        if (httpClient == null) {
            httpClient = new ChaturbateHttpClient();
        }
        return httpClient;
    }

    @Override
    public void shutdown() {
        if (httpClient != null) {
            httpClient.shutdown();
        }
    }

    @Override
    public boolean supportsFollow() {
        return true;
    }

    @Override
    public boolean supportsTips() {
        return true;
    }

    @Override
    public boolean supportsSearch() {
        return true;
    }

    @Override
    public List<Model> search(String q) throws IOException, InterruptedException {
        String url = baseUrl + "?keywords=" + URLEncoder.encode(q, "utf-8");
        List<Model> result = new ArrayList<>();

        // search online models
        Request req = new Request.Builder()
                .url(url)
                .header(USER_AGENT, Config.getInstance().getSettings().httpUserAgent)
                .build();
        try(Response resp = getHttpClient().execute(req)) {
            if(resp.isSuccessful()) {
                result.addAll(ChaturbateModelParser.parseModels(this, resp.body().string()));
            }
        }

        // since chaturbate does not return offline models, we at least try, if the profile page
        // exists for the search string
        url = baseUrl + '/' + q;
        req = new Request.Builder()
                .url(url)
                .header(USER_AGENT, Config.getInstance().getSettings().httpUserAgent)
                .build();
        try(Response resp = getHttpClient().execute(req)) {
            if(resp.isSuccessful()) {
                Model model = createModel(q);
                result.add(model);
            }
        }

        return result;
    }

    @Override
    public boolean isSiteForModel(Model m) {
        return m instanceof ChaturbateModel;
    }

    @Override
    public boolean credentialsAvailable() {
        String username = Config.getInstance().getSettings().username;
        return username != null && !username.trim().isEmpty();
    }

    @Override
    public Model createModelFromUrl(String url) {
        Matcher m = Pattern.compile("https?://.*?chaturbate.com(?:/p)?/([^/]*?)/?").matcher(url);
        if(m.matches()) {
            String modelName = m.group(1);
            return createModel(modelName);
        } else {
            return super.createModelFromUrl(url);
        }
    }
}