package com.juick.www.controllers;

import com.juick.Tag;
import com.juick.User;
import com.juick.server.util.HttpBadRequestException;
import com.juick.server.util.HttpForbiddenException;
import com.juick.server.util.HttpNotFoundException;
import com.juick.server.util.HttpUtils;
import com.juick.service.MessagesService;
import com.juick.service.SubscriptionService;
import com.juick.service.TagService;
import com.juick.service.UserService;
import com.juick.util.UserUtils;
import com.juick.www.WebApp;
import net.coobird.thumbnailator.Thumbnails;
import org.apache.commons.lang3.CharEncoding;
import org.apache.commons.lang3.StringUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.core.env.Environment;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;
import rocks.xmpp.addr.Jid;
import rocks.xmpp.core.stanza.model.Message;
import rocks.xmpp.extensions.nick.model.Nickname;
import rocks.xmpp.extensions.oob.model.x.OobX;

import javax.inject.Inject;
import java.io.IOException;
import java.net.URI;
import java.net.URISyntaxException;
import java.net.URL;
import java.net.URLEncoder;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.List;

/**
 * Created by vitalyster on 20.12.2016.
 */
@Controller
public class PostController {

    private static final Logger logger = LoggerFactory.getLogger(PostController.class);

    @Inject
    MessagesService messagesService;
    @Inject
    UserService userService;
    @Inject
    SubscriptionService subscriptionService;
    @Inject
    TagService tagService;
    @Inject
    WebApp webApp;
    @Inject
    Environment env;

    @RequestMapping(value = "/post", method = RequestMethod.POST)
    public String doPost(
            @RequestParam(required = false, value = "tags") String tagsStr,
            @RequestParam String body,
            @RequestParam(required = false) String img,
            @RequestParam(required = false) MultipartFile attach,
            ModelMap modelMap
    ) throws IOException {
        body = body.replace("\r", StringUtils.EMPTY);

        List<Tag> tags = tagService.fromString(tagsStr, true);

        String attachmentFName = HttpUtils.receiveMultiPartFile(attach, env.getProperty("upload_tmp_dir",
                "/var/www/juick.com/i/tmp/"));

        if (StringUtils.isBlank(attachmentFName) && img != null && img.length() > 10) {
            try {
                URL imgUrl = new URL(img);
                attachmentFName = HttpUtils.downloadImage(imgUrl);
            } catch (Exception e) {
                logger.error("DOWNLOAD ERROR", e);
                throw new HttpBadRequestException();
            }
        }

        User visitor = UserUtils.getCurrentUser();

        String attachmentType = StringUtils.isNotEmpty(attachmentFName) ? attachmentFName.substring(attachmentFName.length() - 3) : null;
        int mid = messagesService.createMessage(visitor.getUid(), body, attachmentType, tags);
        subscriptionService.subscribeMessage(mid, visitor.getUid());

        Message xmsg = new Message();
        xmsg.setFrom(Jid.of("juick@juick.com"));
        xmsg.setType(Message.Type.CHAT);
        xmsg.setThread("juick-" + mid);
        com.juick.Message jmsg = messagesService.getMessage(mid);
        xmsg.addExtension(jmsg);
        xmsg.addExtension(new Nickname("@" + jmsg.getUser().getName()));

        if (StringUtils.isNotEmpty(attachmentFName)) {
            String fname = mid + "." + attachmentType;
            String attachmentURL = "http://i.juick.com/photos-1024/" + fname;

            Path origName = Paths.get(webApp.imgDir, "p", fname);
            Files.move(Paths.get(webApp.tmpDir, attachmentFName), origName);
            Thumbnails.of(origName.toFile()).size(1024, 1024).outputQuality(0.9)
                    .toFile(Paths.get(webApp.imgDir, "photos-1024", fname).toFile());
            Thumbnails.of(origName.toFile()).size(512, 512).outputQuality(0.9)
                    .toFile(Paths.get(webApp.imgDir, "photos-512", fname).toFile());
            Thumbnails.of(origName.toFile()).size(160, 120).outputQuality(0.9)
                    .toFile(Paths.get(webApp.imgDir, "ps", fname).toFile());

            body = attachmentURL + "\n" + body;
            try {
                xmsg.addExtension(new OobX(new URI(attachmentURL)));
            } catch (URISyntaxException e) {
                logger.warn("invalid uri: {} exception {}", attachmentURL, e);
            }
        }
        if (webApp.getXmpp() != null) {

            xmsg.setBody("@" + jmsg.getUser().getName() + ":" + jmsg.getTagsString() + "\n" + body + "\n\n#" + mid + " http://juick.com/" + mid);

            xmsg.setTo(Jid.of("juick@s2s.juick.com"));
            webApp.getXmpp().send(xmsg);

            xmsg.setTo(Jid.of("juick@ws.juick.com"));
            webApp.getXmpp().send(xmsg);

            xmsg.setTo(Jid.of("juick@push.juick.com"));
            webApp.getXmpp().send(xmsg);

            xmsg.setTo(Jid.of("jubo@nologin.ru"));
            webApp.getXmpp().send(xmsg);
        } else {
            logger.warn("XMPP unavailable");
        }

        String hashtags = StringUtils.EMPTY;
        String tagscomma = StringUtils.EMPTY;
        for (int i = 0; i < jmsg.getTags().size(); i++) {
            if (i > 0) {
                hashtags += " ";
                tagscomma += ",";
            }
            hashtags += "#" + jmsg.getTags().get(i);
            tagscomma += jmsg.getTags().get(i);
        }

        String url = URLEncoder.encode("http://juick.com/" + mid, CharEncoding.UTF_8);
        String sharetwi = hashtags + " " + body;
        if (sharetwi.length() > 115) {
            sharetwi = sharetwi.substring(0, 114) + "…";
        }
        sharetwi += " http://juick.com/" + mid;
        String sharelj = URLEncoder.encode(body + "\n", CharEncoding.UTF_8) + url;

        modelMap.put("title", "Сообщение опубликовано");
        modelMap.put("url", url);
        modelMap.put("sharetwi", URLEncoder.encode(sharetwi, CharEncoding.UTF_8));
        modelMap.put("sharelj", sharelj);
        modelMap.put("mid", mid);

        return "views/posted";
    }

    @RequestMapping(value = "/comment", method = RequestMethod.POST)
    public String doComment(
            @RequestParam(defaultValue = "0") int mid,
            @RequestParam(required = false, defaultValue = "0") int rid,
            @RequestParam String body,
            @RequestParam(required = false) String img,
            @RequestParam(required = false) MultipartFile attach) throws IOException {
        com.juick.Message msg = messagesService.getMessage(mid);
        if (msg == null) {
            throw new HttpNotFoundException();
        }

        com.juick.Message reply = null;
        if (rid > 0) {
            reply = messagesService.getReply(mid, rid);
            if (reply == null) {
                throw new HttpNotFoundException();
            }
        }

        if (body.length() < 1 || body.length() > 4096) {
            throw new HttpBadRequestException();
        }
        body = body.replace("\r", StringUtils.EMPTY);

        User visitor = UserUtils.getCurrentUser();

        if ((msg.ReadOnly && msg.getUser().getUid() != visitor.getUid())
                || userService.isInBLAny(msg.getUser().getUid(), visitor.getUid())
                || (reply != null && userService.isInBLAny(reply.getUser().getUid(), visitor.getUid()))) {
            throw new HttpForbiddenException();
        }

        String attachmentFName = HttpUtils.receiveMultiPartFile(attach, env.getProperty("upload_tmp_dir",
                "/var/www/juick.com/i/tmp/"));

        if (StringUtils.isBlank(attachmentFName) && img != null && img.length() > 10) {
            try {
                URL imgUrl = new URL(img);
                attachmentFName = HttpUtils.downloadImage(imgUrl);
            } catch (Exception e) {
                logger.error("DOWNLOAD ERROR", e);
                throw new HttpBadRequestException();
            }
        }

        String attachmentType = StringUtils.isNotEmpty(attachmentFName) ? attachmentFName.substring(attachmentFName.length() - 3) : null;
        int ridnew = messagesService.createReply(mid, rid, visitor.getUid(), body, attachmentType);
        subscriptionService.subscribeMessage(mid, visitor.getUid());

        com.juick.Message jmsg = messagesService.getReply(mid, ridnew);

        Message xmsg = new Message();
        xmsg.setFrom(Jid.of("juick@juick.com"));
        xmsg.setType(Message.Type.CHAT);
        xmsg.setThread("juick-" + mid);

        xmsg.addExtension(jmsg);

        String quote = reply != null ? reply.getText() : msg.getText();
        if (quote.length() >= 50) {
            quote = quote.substring(0, 47) + "...";
        }
        xmsg.addExtension(new Nickname("@" + jmsg.getUser().getName()));

        if (StringUtils.isNotEmpty(attachmentFName)) {
            String fname = mid + "-" + ridnew + "." + attachmentType;
            String attachmentURL = "http://i.juick.com/photos-1024/" + fname;

            Path origName = Paths.get(webApp.imgDir, "p", fname);
            Files.move(Paths.get(webApp.tmpDir, attachmentFName), origName);
            Thumbnails.of(origName.toFile()).size(1024, 1024).outputQuality(0.9)
                    .toFile(Paths.get(webApp.imgDir, "photos-1024", fname).toFile());
            Thumbnails.of(origName.toFile()).size(512, 512).outputQuality(0.9)
                    .toFile(Paths.get(webApp.imgDir, "photos-512", fname).toFile());
            Thumbnails.of(origName.toFile()).size(160, 120).outputQuality(0.9)
                    .toFile(Paths.get(webApp.imgDir, "ps", fname).toFile());

            body = attachmentURL + "\n" + body;
            try {
                xmsg.addExtension(new OobX(new URI(attachmentURL)));
            } catch (URISyntaxException e) {
                logger.warn("invalid uri: {}, exception {}", attachmentURL, e);
            }
        }

        if (webApp.getXmpp() != null) {

            xmsg.setBody("Reply by @" + jmsg.getUser().getName() + ":\n>" + quote + "\n" + body + "\n\n#" +
                    mid + "/" + ridnew + " http://juick.com/" + mid + "#" + ridnew);

            xmsg.setTo(Jid.of("juick@s2s.juick.com"));
            webApp.getXmpp().send(xmsg);

            xmsg.setTo(Jid.of("juick@ws.juick.com"));
            webApp.getXmpp().send(xmsg);

            xmsg.setTo(Jid.of("juick@push.juick.com"));
            webApp.getXmpp().send(xmsg);
        } else {
            logger.warn("XMPP unavailable");
        }

        return "redirect:/" + msg.getUser().getName() + "/" + mid + "#" + ridnew;
    }
}