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package com.juick.api.controllers;

import com.juick.User;
import com.juick.api.ApiServer;
import com.juick.server.util.HttpBadRequestException;
import com.juick.server.util.HttpForbiddenException;
import com.juick.service.PMQueriesService;
import com.juick.service.UserService;
import com.juick.util.UserUtils;
import com.juick.util.WebUtils;
import org.springframework.http.MediaType;
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.bind.annotation.RestController;
import rocks.xmpp.addr.Jid;
import rocks.xmpp.core.stanza.model.Message;

import javax.inject.Inject;
import java.util.List;

/**
 * @author ugnich
 */
@RestController
public class PM {
    @Inject
    UserService userService;
    @Inject
    PMQueriesService pmQueriesService;
    @Inject
    ApiServer apiServer;

    @RequestMapping(value = "/pm", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_UTF8_VALUE)
    public List<com.juick.Message> doGetPM(
            @RequestParam(required = false) String uname) {
        User visitor = UserUtils.getCurrentUser();
        int vuid = visitor.getUid();
        if (vuid == 0) {
            throw new HttpForbiddenException();
        }
        int uid = 0;
        if (uname != null && uname.matches("^[a-zA-Z0-9\\-]{2,16}$")) {
            uid = userService.getUIDbyName(uname);
        }

        if (uid == 0) {
            throw new HttpBadRequestException();
        }

        return pmQueriesService.getPMMessages(vuid, uid);
    }

    @RequestMapping(value = "/pm", method = RequestMethod.POST, produces = MediaType.APPLICATION_JSON_UTF8_VALUE)
    public com.juick.Message doPostPM(
            @RequestParam String uname,
            @RequestParam String body) {
        User visitor = UserUtils.getCurrentUser();
        int vuid = visitor.getUid();
        if (vuid == 0) {
            throw new HttpForbiddenException();
        }
        int uid = 0;
        if (WebUtils.isUserName(uname)) {
            uid = userService.getUIDbyName(uname);
        }

        if (uid == 0 || body == null || body.length() < 1 || body.length() > 10240) {
            throw new HttpBadRequestException();
        }

        if (userService.isInBLAny(uid, vuid)) {
            throw new HttpForbiddenException();
        }

        if (pmQueriesService.createPM(vuid, uid, body)) {
            Message msg = new Message();
            msg.setFrom(Jid.of("juick@juick.com"));
            msg.setTo(Jid.of(String.format("%d@push.juick.com", uid)));
            com.juick.Message jmsg = new com.juick.Message();
            jmsg.setUser(userService.getUserByUID(vuid).get());
            jmsg.setText(body);
            msg.addExtension(jmsg);
            apiServer.getXmpp().send(msg);

            msg.setTo(Jid.of(String.format("%d@ws.juick.com", uid)));
            apiServer.getXmpp().send(msg);

            List<String> jids = userService.getJIDsbyUID(uid);
            for (String jid : jids) {
                Message mm = new Message();
                mm.setTo(Jid.of(jid));
                mm.setType(Message.Type.CHAT);
                if (pmQueriesService.havePMinRoster(vuid, jid)) {
                    mm.setFrom(Jid.of(jmsg.getUser().getName(), "juick.com", "Juick"));
                    mm.setBody(body);
                } else {
                    mm.setFrom(Jid.of("juick", "juick.com", "Juick"));
                    mm.setBody("Private message from @" + jmsg.getUser().getName() + ":\n" + body);
                }
                apiServer.getXmpp().send(mm);
            }
            return jmsg;

        }
        throw new HttpBadRequestException();
    }
}