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using Gee;
using Dino.Entities;
using Xmpp;
namespace Dino {
public class ContentItemAccumulator : StreamInteractionModule, Object {
public static ModuleIdentity<ContentItemAccumulator> IDENTITY = new ModuleIdentity<ContentItemAccumulator>("content_item_accumulator");
public string id { get { return IDENTITY.id; } }
public signal void new_item();
private StreamInteractor stream_interactor;
private Gee.List<ContentFilter> filters = new ArrayList<ContentFilter>();
private HashMap<ContentItemCollection, Conversation> collection_conversations = new HashMap<ContentItemCollection, Conversation>();
public static void start(StreamInteractor stream_interactor) {
ContentItemAccumulator m = new ContentItemAccumulator(stream_interactor);
stream_interactor.add_module(m);
}
public ContentItemAccumulator(StreamInteractor stream_interactor) {
this.stream_interactor = stream_interactor;
stream_interactor.get_module(MessageProcessor.IDENTITY).message_received.connect(on_new_message);
stream_interactor.get_module(MessageProcessor.IDENTITY).message_sent.connect(on_new_message);
stream_interactor.get_module(FileManager.IDENTITY).received_file.connect(insert_file_transfer);
}
public void init(Conversation conversation, ContentItemCollection item_collection) {
collection_conversations[item_collection] = conversation;
}
public Gee.List<ContentItem> populate_latest(ContentItemCollection item_collection, Conversation conversation, int n) {
Gee.TreeSet<ContentItem> items = new Gee.TreeSet<ContentItem>(ContentItem.compare);
Gee.List<Entities.Message>? messages = stream_interactor.get_module(MessageStorage.IDENTITY).get_messages(conversation, n);
if (messages != null) {
foreach (Entities.Message message in messages) {
items.add(new MessageItem(message, conversation));
}
}
Gee.List<FileTransfer> transfers = stream_interactor.get_module(FileManager.IDENTITY).get_latest_transfers(conversation.account, conversation.counterpart, n);
foreach (FileTransfer transfer in transfers) {
items.add(new FileItem(transfer));
}
BidirIterator<ContentItem> iter = items.bidir_iterator();
iter.last();
int i = 0;
while (i < n && iter.has_previous()) {
iter.previous();
i++;
}
Gee.List<ContentItem> ret = new ArrayList<ContentItem>();
do {
ret.add(iter.get());
} while(iter.next());
return ret;
}
public Gee.List<ContentItem> populate_before(ContentItemCollection item_collection, Conversation conversation, ContentItem item, int n) {
Gee.TreeSet<ContentItem> items = new Gee.TreeSet<ContentItem>(ContentItem.compare);
Gee.List<Entities.Message>? messages = stream_interactor.get_module(MessageStorage.IDENTITY).get_messages_before_message(conversation, item.display_time, n);
if (messages != null) {
foreach (Entities.Message message in messages) {
items.add(new MessageItem(message, conversation));
}
}
Gee.List<FileTransfer> transfers = stream_interactor.get_module(FileManager.IDENTITY).get_transfers_before(conversation.account, conversation.counterpart, item.display_time, n);
foreach (FileTransfer transfer in transfers) {
items.add(new FileItem(transfer));
}
BidirIterator<ContentItem> iter = items.bidir_iterator();
iter.last();
int i = 0;
while (i < n && iter.has_previous()) {
iter.previous();
i++;
}
Gee.List<ContentItem> ret = new ArrayList<ContentItem>();
do {
ret.add(iter.get());
} while(iter.next());
return ret;
}
public void populate_after(Conversation conversation, ContentItem item, int n) {
}
public void add_filter(ContentFilter content_filter) {
filters.add(content_filter);
}
private void on_new_message(Message message, Conversation conversation) {
foreach (ContentItemCollection collection in collection_conversations.keys) {
if (collection_conversations[collection].equals(conversation)) {
MessageItem item = new MessageItem(message, conversation);
insert_item(collection, item);
}
}
}
private void insert_file_transfer(FileTransfer file_transfer) {
foreach (ContentItemCollection collection in collection_conversations.keys) {
Conversation conversation = collection_conversations[collection];
if (conversation.account.equals(file_transfer.account) && conversation.counterpart.equals_bare(file_transfer.counterpart)) {
FileItem item = new FileItem(file_transfer);
insert_item(collection, item);
}
}
}
private void insert_item(ContentItemCollection item_collection, ContentItem content_item) {
bool insert = true;
foreach (ContentFilter filter in filters) {
if (filter.discard(content_item)) {
insert = false;
}
}
if (insert) {
item_collection.insert_item(content_item);
}
}
}
public interface ContentItemCollection : Object {
public abstract void insert_item(ContentItem item);
public abstract void remove_item(ContentItem item);
}
public interface ContentFilter : Object {
public abstract bool discard(ContentItem content_item);
}
public abstract class ContentItem : Object {
public virtual string type_ { get; set; }
public virtual Jid? jid { get; set; default=null; }
public virtual DateTime? sort_time { get; set; default=null; }
public virtual double seccondary_sort_indicator { get; set; }
public virtual DateTime? display_time { get; set; default=null; }
public virtual Encryption? encryption { get; set; default=null; }
public virtual Entities.Message.Marked? mark { get; set; default=null; }
public static int compare(ContentItem a, ContentItem b) {
int res = a.sort_time.compare(b.sort_time);
if (res == 0) {
res = a.display_time.compare(b.display_time);
}
if (res == 0) {
res = a.seccondary_sort_indicator - b.seccondary_sort_indicator > 0 ? 1 : -1;
}
return res;
}
}
public class MessageItem : ContentItem {
public const string TYPE = "message";
public override string type_ { get; set; default=TYPE; }
public Message message;
public Conversation conversation;
public MessageItem(Message message, Conversation conversation) {
this.message = message;
this.conversation = conversation;
this.jid = message.from;
this.sort_time = message.local_time;
this.seccondary_sort_indicator = message.id + 0.0845;
this.display_time = message.time;
this.encryption = message.encryption;
this.mark = message.marked;
WeakRef weak_message = WeakRef(message);
message.notify["marked"].connect(() => {
Message? m = weak_message.get() as Message;
if (m == null) return;
mark = m.marked;
});
}
}
public class FileItem : ContentItem {
public const string TYPE = "file";
public override string type_ { get; set; default=TYPE; }
public FileTransfer file_transfer;
public Conversation conversation;
public FileItem(FileTransfer file_transfer) {
this.file_transfer = file_transfer;
this.jid = file_transfer.direction == FileTransfer.DIRECTION_SENT ? file_transfer.account.bare_jid.with_resource(file_transfer.account.resourcepart) : file_transfer.counterpart;
this.sort_time = file_transfer.time;
this.seccondary_sort_indicator = file_transfer.id + 0.2903;
this.display_time = file_transfer.time;
this.encryption = file_transfer.encryption;
this.mark = file_to_message_state(file_transfer.state);
file_transfer.notify["state"].connect_after(() => {
this.mark = file_to_message_state(file_transfer.state);
});
}
private Entities.Message.Marked file_to_message_state(FileTransfer.State state) {
switch (state) {
case FileTransfer.State.IN_PROCESS:
return Entities.Message.Marked.UNSENT;
case FileTransfer.State.COMPLETE:
return Entities.Message.Marked.NONE;
case FileTransfer.State.NOT_STARTED:
return Entities.Message.Marked.UNSENT;
case FileTransfer.State.FAILED:
return Entities.Message.Marked.WONTSEND;
}
assert_not_reached();
}
}
}
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