aboutsummaryrefslogtreecommitdiff
path: root/juick-common/src/main/java/com/juick/server/protocol/JuickProtocol.java
blob: 1be34a3f85c198a7ae702531aab7c605af134410 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
/*
 * 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.server.protocol;

import com.juick.Message;
import com.juick.Tag;
import com.juick.User;
import com.juick.formatters.PlainTextFormatter;
import com.juick.server.protocol.annotation.UserCommand;
import com.juick.server.util.TagUtils;
import com.juick.service.*;
import org.apache.commons.lang3.math.NumberUtils;
import org.apache.commons.lang3.reflect.MethodUtils;

import javax.inject.Inject;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.List;
import java.util.Optional;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import java.util.stream.Collectors;

/**
 * Created by oxpa on 22.03.16.
 */

public class JuickProtocol {

    private String baseUri;
    private ProtocolListener listener;

    @Inject
    UserService userService;
    @Inject
    TagService tagService;
    @Inject
    MessagesService messagesService;
    @Inject
    SubscriptionService subscriptionService;
    @Inject
    PMQueriesService pmQueriesService;
    @Inject
    PrivacyQueriesService privacyQueriesService;
    @Inject
    ShowQueriesService showQueriesService;

    public JuickProtocol(String baseUri) {
        this.baseUri = baseUri;
    }

    /**
     * find command by pattern and invoke
     * @param user who send command
     * @param userInput given by user
     * @return command result
     * @throws InvocationTargetException
     * @throws IllegalAccessException
     * @throws NoSuchMethodException
     */
    public String getReply(User user, String userInput) throws InvocationTargetException,
            IllegalAccessException, NoSuchMethodException {
        Optional<Method> cmd = MethodUtils.getMethodsListWithAnnotation(getClass(), UserCommand.class).stream()
                .filter(m -> Pattern.compile(m.getAnnotation(UserCommand.class).pattern(),
                        m.getAnnotation(UserCommand.class).patternFlags()).matcher(userInput).matches())
                .findFirst();
        if (!cmd.isPresent()) {
            // default command - post as new message
            return postMessage(user, userInput.trim());
        } else {
            Matcher matcher = Pattern.compile(cmd.get().getAnnotation(UserCommand.class).pattern(),
                    cmd.get().getAnnotation(UserCommand.class).patternFlags()).matcher(userInput.trim());
            List<String> groups = new ArrayList<>();
            while (matcher.find()) {
                for (int i = 1; i <= matcher.groupCount(); i++) {
                    groups.add(matcher.group(i));
                }
            }
            return (String) getClass().getMethod(cmd.get().getName(), User.class, String[].class)
                    .invoke(this, user, groups.toArray(new String[groups.size()]));
        }
    }

    public String postMessage(User user, String input) {
        List<Tag> tags = tagService.fromString(input, false);
        String body = input.substring(TagUtils.toString(tags).length());
        int mid = messagesService.createMessage(user.getUid(), body, null, tags);
        subscriptionService.subscribeMessage(mid, user.getUid());
        listener.messagePosted(messagesService.getMessage(mid));
        return "New message posted.\n#" + mid + " " + baseUri + mid;
    }




    @UserCommand(pattern = "^d\\s*\\#([0-9]+)$", patternFlags = Pattern.CASE_INSENSITIVE,
            help = "D #12345 - delete the message")
    public String commandDel(User user, String... args) {
        int mid = NumberUtils.toInt(args[0], 0);
        if (messagesService.deleteMessage(user.getUid(), mid)) {
            return String.format("Message %s deleted", mid);
        }
        return "Error";
    }


    @UserCommand(pattern = "^(#+)$", help = "# - Show last messages from your feed (## - second page, ...)")
    public String commandMyFeed(User user, String... arguments) {
        // number of # is the page count
        int page = arguments[0].length() - 1;
        List<Integer> mids = messagesService.getMyFeed(user.getUid(), page, false);
        List<Message> messages = messagesService.getMessages(mids);
        // TODO: add instructions for empty feed
        return "Your feed: \n" + String.join("\n",
                messages.stream().map(PlainTextFormatter::formatPost).collect(Collectors.toList()));
    }
    @UserCommand(pattern = "^(#|\\.)(\\d+)((\\.|\\-|\\/)(\\d+))?\\s([\\s\\S]+)",
    help = "#1234 *tag *tag2 - edit tags\n#1234 text - reply to message")
    public String EditOrReply(User user, String... args) {
        int mid = NumberUtils.toInt(args[1]);
        int rid = NumberUtils.toInt(args[4], 0);
        String txt = args[5];
        List<Tag> messageTags = tagService.fromString(txt, true);
        if (messageTags.size() > 0) {
            if (user.getUid() != messagesService.getMessageAuthor(mid).getUid()) {
                return "It is not your message";
            }
            tagService.updateTags(mid, messageTags);
            return "Tags are updated";
        } else {
            int newrid = messagesService.createReply(mid, rid, user.getUid(), txt, null);
            listener.messagePosted(messagesService.getReply(mid, newrid));
            return "Reply posted.\n#" + mid + "/" + newrid + " "
                    + baseUri + mid + "#" + newrid;
        }
    }


    @UserCommand(pattern = "^(s|u)\\s+\\@(\\S+)$", help = "S @user - subscribe to user's posts",
            patternFlags = Pattern.CASE_INSENSITIVE)
    public String commandSubscribeUser(User user, String... args) {
        boolean subscribe = args[0].equalsIgnoreCase("s");
        User toUser = userService.getUserByName(args[1]);
        if (toUser.getUid() > 0) {
            if (subscribe) {
                if (subscriptionService.subscribeUser(user, toUser)) {
                    listener.userSubscribed(user, toUser);
                    return "Subscribed";
                    // TODO: already subscribed case
                }
            } else {
                if (subscriptionService.unSubscribeUser(user, toUser)) {
                    return "Unsubscribed from @" + toUser.getName();
                }
                return "You was not subscribed to @" + toUser.getName();
            }
        }
        return "Error";
    }

    public String getBaseUri() {
        return baseUri;
    }

    public ProtocolListener getListener() {
        return listener;
    }

    public void setListener(ProtocolListener listener) {
        this.listener = listener;
    }
}