package ctbrec.sites.streamray;

import com.iheartradio.m3u8.ParseException;
import com.iheartradio.m3u8.PlaylistException;
import ctbrec.AbstractModel;
import ctbrec.Config;
import ctbrec.io.HttpException;
import ctbrec.recorder.download.Download;
import ctbrec.recorder.download.StreamSource;
import ctbrec.recorder.download.hls.FfmpegHlsDownload;
import okhttp3.Request;
import okhttp3.Response;
import org.json.JSONObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.xml.bind.JAXBException;
import java.io.IOException;
import java.net.URLEncoder;
import java.text.MessageFormat;
import java.time.Duration;
import java.time.Instant;
import java.time.LocalDate;
import java.time.temporal.ChronoUnit;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
import java.util.concurrent.ExecutionException;

import static ctbrec.Model.State.*;
import static ctbrec.io.HttpConstants.*;
import static java.nio.charset.StandardCharsets.UTF_8;

public class StreamrayModel extends AbstractModel {

    private static final Logger LOG = LoggerFactory.getLogger(StreamrayModel.class);
    private String status = null;
    private String gender = null;
    private LocalDate regDate = LocalDate.EPOCH;
    private JSONObject modelInfo;

    private transient Instant lastInfoRequest = Instant.EPOCH;

    @Override
    public boolean isOnline(boolean ignoreCache) throws IOException, ExecutionException, InterruptedException {
        if (ignoreCache) {
            try {
                JSONObject json = getModelInfo();
                if (json.has("online")) {
                    status = json.optString("online");
                    mapOnlineState(status);
                }
            } catch (Exception e) {
                setOnlineState(UNKNOWN);
            }
        }
        return onlineState == ONLINE;
    }

    private void mapOnlineState(String status) {
        boolean goalShows = Config.getInstance().getSettings().streamrayRecordGoalShows;
        switch (status) {
            case "0" -> setOnlineState(OFFLINE);
            case "1" -> setOnlineState(ONLINE);
            case "6" -> setOnlineState(goalShows ? ONLINE : PRIVATE);
            case "2", "3", "4", "7", "10", "11", "12", "13", "14" -> setOnlineState(PRIVATE);
            default -> setOnlineState(OFFLINE);
        }
    }

    @Override
    public State getOnlineState(boolean failFast) throws IOException, ExecutionException {
        if (failFast && onlineState != UNKNOWN) {
            return onlineState;
        } else {
            try {
                onlineState = isOnline(true) ? ONLINE : OFFLINE;
            } catch (InterruptedException e) {
                Thread.currentThread().interrupt();
                onlineState = OFFLINE;
            } catch (IOException | ExecutionException e) {
                onlineState = OFFLINE;
            }
            return onlineState;
        }
    }

    @Override
    public List<StreamSource> getStreamSources() throws IOException, ExecutionException, ParseException, PlaylistException, JAXBException {
        List<StreamSource> sources = new ArrayList<>();
        try {
            String url = getMasterPlaylistUrl();
            StreamSource src = new StreamSource();
            src.mediaPlaylistUrl = url;
            src.height = 0;
            src.width = 0;
            src.bandwidth = 0;
            sources.add(src);
        } catch (IOException e) {
            LOG.error("Can not get stream sources for {}", getName());
        }
        return sources;
    }

    private String getMasterPlaylistUrl() throws IOException {
        JSONObject json = getModelInfo();
        String mpp = json.getString("mpp");
        String lname = getName().toLowerCase();
        return MessageFormat.format("https://stream14.cams.com/h5live/http/playlist.m3u8?url=rtmp%3A%2F%2F{0}%3A1935%2Fcams%2F{1}%3Fcams%2F{1}_720p&stream={2}", mpp, lname, getName());
    }

    @Override
    public int[] getStreamResolution(boolean failFast) throws ExecutionException {
        return new int[]{0, 0};
    }

    private JSONObject getModelInfo() throws IOException {
        if (Duration.between(lastInfoRequest, Instant.now()).getSeconds() < 5) {
            modelInfo = Optional.ofNullable(modelInfo).orElse(loadModelInfo());
        } else {
            modelInfo = loadModelInfo();
        }
        return modelInfo;
    }

    private JSONObject loadModelInfo() throws IOException {
        lastInfoRequest = Instant.now();
        String url = "https://beta-api.cams.com/models/stream/" + getName() + "/";
        Request req = new Request.Builder().url(url)
                .header(USER_AGENT, Config.getInstance().getSettings().httpUserAgent)
                .header(ACCEPT, MIMETYPE_APPLICATION_JSON)
                .header(ACCEPT_LANGUAGE, "en")
                .header(REFERER, getSite().getBaseUrl() + '/' + getName())
                .build();
        try (Response response = site.getHttpClient().execute(req)) {
            if (response.isSuccessful()) {
                JSONObject jsonResponse = new JSONObject(response.body().string());
                return jsonResponse;
            } else {
                throw new HttpException(response.code(), response.message());
            }
        }
    }

    public String getPreviewURL() {
        String lname = getName().toLowerCase();
        String url = MessageFormat.format("https://images4.streamray.com/images/streamray/won/jpg/{0}/{1}/{2}_640.jpg", lname.substring(0, 1), lname.substring(lname.length() - 1), lname);
        try {
            return MessageFormat.format("https://dynimages.securedataimages.com/unsigned/rs:fill:320::0/g:no/plain/{0}@jpg", URLEncoder.encode(url, UTF_8));
        } catch (Exception ex) {
            return url;
        }
    }

    @Override
    public Download createDownload() {
        return new FfmpegHlsDownload(getSite().getHttpClient());
    }

    @Override
    public boolean follow() throws IOException {
        return false;
    }

    @Override
    public boolean unfollow() throws IOException {
        return false;
    }

    @Override
    public void receiveTip(Double tokens) throws IOException {
        // not implemented
    }

    @Override
    public void invalidateCacheEntries() {
        status = null;
        lastInfoRequest = Instant.EPOCH;
        modelInfo = null;
    }

    public String getGender() {
        return gender;
    }

    public void setGender(String gender) {
        this.gender = gender;
    }

    public void setRegDate(LocalDate reg) {
        this.regDate = reg;
    }

    public boolean isNew() {
        return ChronoUnit.DAYS.between(this.regDate, LocalDate.now()) < 30;
    }

}