1/**
2 * Copyright (c) 2012, Google Inc.
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17package com.android.mail.providers;
18
19import android.os.Parcel;
20import android.os.Parcelable;
21
22import com.google.common.base.Objects;
23
24import java.util.ArrayList;
25
26public class ConversationInfo implements Parcelable {
27
28    public final ArrayList<ParticipantInfo> participantInfos;
29    public int messageCount;
30    public int draftCount;
31    public String firstSnippet;
32    public String firstUnreadSnippet;
33    public String lastSnippet;
34
35    public ConversationInfo() {
36        participantInfos = new ArrayList<ParticipantInfo>();
37    }
38
39    public ConversationInfo(int messageCount) {
40        this.messageCount = messageCount;
41        // message count is a decent approximation of participant count because for all incoming
42        // mailboxes we typically populate the participant list with the sender of each message
43        participantInfos = new ArrayList<ParticipantInfo>(messageCount);
44    }
45
46    public ConversationInfo(int messageCount, int draft, String first, String firstUnread,
47                            String last) {
48        // message count is a decent approximation of participant count because for all incoming
49        // mailboxes we typically populate the participant list with the sender of each message
50        participantInfos = new ArrayList<ParticipantInfo>(messageCount);
51        set(messageCount, draft, first, firstUnread, last);
52    }
53
54    private ConversationInfo(Parcel in) {
55        messageCount = in.readInt();
56        draftCount = in.readInt();
57        firstSnippet = in.readString();
58        firstUnreadSnippet = in.readString();
59        lastSnippet = in.readString();
60        participantInfos = in.createTypedArrayList(ParticipantInfo.CREATOR);
61    }
62
63    /**
64     * Sets all public fields to match the passed in ConversationInfo (does not copy objects)
65     * @param orig ConversationInfo to copy
66     */
67    public void overwriteWith(ConversationInfo orig) {
68        participantInfos.clear();
69        participantInfos.addAll(orig.participantInfos);
70        messageCount = orig.messageCount;
71        draftCount = orig.draftCount;
72        firstSnippet = orig.firstSnippet;
73        firstUnreadSnippet = orig.firstUnreadSnippet;
74        lastSnippet = orig.lastSnippet;
75    }
76
77    @Override
78    public int describeContents() {
79        return 0;
80    }
81
82    @Override
83    public void writeToParcel(Parcel dest, int flags) {
84        dest.writeInt(messageCount);
85        dest.writeInt(draftCount);
86        dest.writeString(firstSnippet);
87        dest.writeString(firstUnreadSnippet);
88        dest.writeString(lastSnippet);
89        dest.writeTypedList(participantInfos);
90    }
91
92    public static ConversationInfo fromBlob(byte[] blob) {
93        if (blob == null) {
94            return null;
95        }
96        final Parcel p = Parcel.obtain();
97        p.unmarshall(blob, 0, blob.length);
98        p.setDataPosition(0);
99        final ConversationInfo result = CREATOR.createFromParcel(p);
100        p.recycle();
101        return result;
102    }
103
104    public byte[] toBlob() {
105        final Parcel p = Parcel.obtain();
106        writeToParcel(p, 0);
107        final byte[] result = p.marshall();
108        p.recycle();
109        return result;
110    }
111
112    public void set(int count, int draft, String first, String firstUnread, String last) {
113        participantInfos.clear();
114        messageCount = count;
115        draftCount = draft;
116        firstSnippet = first;
117        firstUnreadSnippet = firstUnread;
118        lastSnippet = last;
119    }
120
121    public void reset() {
122        participantInfos.clear();
123        messageCount = 0;
124        draftCount = 0;
125        firstSnippet = null;
126        firstUnreadSnippet = null;
127        lastSnippet = null;
128    }
129
130    public void addParticipant(ParticipantInfo info) {
131        participantInfos.add(info);
132    }
133
134    public boolean markRead(boolean read) {
135        boolean changed = false;
136        for (ParticipantInfo pi : participantInfos) {
137            changed |= pi.markRead(read);
138        }
139        // Change the firstSnippet only if the conversion has messages.
140        if (messageCount > 0) {
141            if (read) {
142                firstSnippet = lastSnippet;
143            } else {
144                firstSnippet = firstUnreadSnippet;
145            }
146        }
147        return changed;
148    }
149
150    @Override
151    public int hashCode() {
152        return Objects.hashCode(messageCount, draftCount, participantInfos, firstSnippet,
153                lastSnippet, firstUnreadSnippet);
154    }
155
156    public static final Creator<ConversationInfo> CREATOR = new Creator<ConversationInfo>() {
157
158        @Override
159        public ConversationInfo createFromParcel(Parcel source) {
160            return new ConversationInfo(source);
161        }
162
163        @Override
164        public ConversationInfo[] newArray(int size) {
165            return new ConversationInfo[size];
166        }
167
168    };
169
170    @Override
171    public String toString() {
172        StringBuilder builder = new StringBuilder();
173        builder.append("[ConversationInfo object: messageCount = ");
174        builder.append(messageCount);
175        builder.append(", draftCount = ");
176        builder.append(draftCount);
177        builder.append(", firstSnippet= ");
178        builder.append(firstSnippet);
179        builder.append(", firstUnreadSnippet = ");
180        builder.append(firstUnreadSnippet);
181        builder.append(", participants = ");
182        builder.append(participantInfos.toString());
183        builder.append("]");
184        return builder.toString();
185    }
186}
187