/*
 * Copyright (C) 2008-2017, Juick
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.juick.api.controllers;

import com.juick.Message;
import com.juick.User;
import com.juick.server.util.HttpBadRequestException;
import com.juick.server.util.HttpForbiddenException;
import com.juick.server.util.UserUtils;
import com.juick.service.CrosspostService;
import com.juick.service.MessagesService;
import com.juick.service.SubscriptionService;
import com.juick.service.UserService;
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 springfox.documentation.annotations.ApiIgnore;

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

/**
 * TODO: configure spring-security to allow only admin role
 */
@ApiIgnore
@RestController
public class Service {
    @Inject
    private SubscriptionService subscriptionService;
    @Inject
    private MessagesService messagesService;
    @Inject
    private CrosspostService crosspostService;
    @Inject
    private UserService userService;

    @RequestMapping(value = "/subscriptions", method = RequestMethod.GET, produces = MediaType.APPLICATION_JSON_UTF8_VALUE)
    public List<User> doGet(
            @RequestParam(defaultValue = "0") int mid,
            @RequestParam(defaultValue = "0") int uid) throws IOException {
        User visitor = UserUtils.getCurrentUser();
        if ((visitor.getUid() == 0) && !(visitor.getName().equals("juick"))) {
            throw new HttpForbiddenException();
        }
        if (uid > 0) {
            return subscriptionService.getSubscribedUsers(uid, mid);
        } else {
            // thread
            Message msg = messagesService.getMessage(mid);
            if (msg != null) {
                return subscriptionService.getUsersSubscribedToComments(mid, msg.getUser().getUid());
            }
        }
        throw new HttpBadRequestException();
    }
}