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path: root/plugins/HistoryStats/src/mirandahistory.cpp
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#include "_globals.h"
#include "mirandahistory.h"

#include "mirandasettings.h"

/*
 * MirandaHistory
 */

void MirandaHistory::populateProtocols()
{
	m_Protocols.clear();

	PROTOACCOUNT **protoList;
	int protoCount;

	if (mu::proto::enumProtocols(&protoCount, &protoList) == 0) {				
		upto_each_(i, protoCount) 
		{
			ext::a::string protoName = protoList[i]->szModuleName;

			Protocol& curProto = m_Protocols[protoName];

			curProto.displayName = Protocol::getDisplayName(protoName);
		}
	}

	m_DefaultProtocol.displayName = TranslateT("(Unknown)");
}

const Protocol& MirandaHistory::getProtocol(const ext::a::string& protocol) const
{
	std::map<ext::a::string, Protocol>::const_iterator i = m_Protocols.find(protocol);

	return (i != m_Protocols.end()) ? i->second : m_DefaultProtocol;
}

void MirandaHistory::makeContactsAvailable()
{
	if (m_bContactsAvailable)
		return;

	// make protocols available
	populateProtocols();

	// first run:
	// - enum all contacts
	// - skip for ignored protocol
	// - handle meta contacts (if enabled and available)
	// - skip manually excluded
	readContacts();

	// second run:
	// - merge contacts with similar names
	mergeContacts();

	m_bContactsAvailable = true;
}

void MirandaHistory::readContacts()
{
	bool bHandleMeta = m_Settings.m_MetaContactsMode != Settings::mcmIgnoreMeta;
	ext::a::string strMetaProto = bHandleMeta ? META_PROTO : "";
	MirandaSettings db;

	std::vector<MCONTACT> sources;

	MCONTACT hContact = db_find_first();
	while (hContact) {
		db.setContact(hContact);

		const char* pProtoName = GetContactProto(hContact);

		// if something leads to ignorance of conact jump to end of
		// processing this contact via 'break'
		do {
			// ignore because of bad or not loaded protocol?
			if (!pProtoName)
				pProtoName = con::ProtoUnknown; // MEMO: alternative would be "break;"

			ext::string curNick = mu::clist::getContactDisplayName(hContact);

			// retrieve protocol
			const ext::a::string curProtoName = pProtoName;
			const Protocol& curProto = getProtocol(curProtoName);

			// retrieve group
			db.setModule(con::ModCList);
			ext::string curGroup = db.readStrDirect(con::SettGroup, TranslateT("(none)"));

			// ignore because of filtered protocol?
			if (m_Settings.m_ProtosIgnore.find(curProtoName) != m_Settings.m_ProtosIgnore.end())
				break;

			// init list of event sources
			sources.clear();
			sources.push_back(hContact);

			// handle meta-contacts
			if (bHandleMeta) {
				if (curProtoName == strMetaProto) {
					// don't include meta-contact history
					if (m_Settings.m_MetaContactsMode == Settings::mcmSubOnly)
						sources.clear();

					// include meta-contact's subcontact
					if (m_Settings.m_MetaContactsMode != Settings::mcmMetaOnly) {
						// find subcontacts to read history from
						int numSubs = db_mc_getSubCount(hContact);
						if (numSubs > 0) {
							for (int i = 0; i < numSubs; ++i) {
								MCONTACT hSubContact = db_mc_getSub(hContact, i);
								if (hSubContact)
									sources.push_back(hSubContact);
							}
						}
					}
				}
				else {
					// ignore because of meta-contact?
					if (db_mc_getMeta(hContact))
						break;
				}
			}

			// ignore because of exclude?
			db.setModule(con::ModHistoryStats);

			if (db.readBool(con::SettExclude, false))
				break;

			// finally add to list
			MirandaContact* pContact = MirandaContactFactory::makeMirandaContact(m_Settings.m_MergeMode, curNick, curProto.displayName, curGroup, sources);
			m_Contacts.push_back(pContact);
		}
			while (false);

		hContact = db_find_next(hContact);
	}
}

void MirandaHistory::mergeContacts()
{
	if (!m_Settings.m_MergeContacts)
		return;

	for (ContactList::size_type i = 0; i < m_Contacts.size(); ++i) {
		MirandaContact& cur = *m_Contacts[i];

		for (ContactList::size_type j = i + 1; j < m_Contacts.size(); ++j) {
			if (m_Contacts[j]->getNick() == cur.getNick()) {
				if (!m_Settings.m_MergeContactsGroups || m_Contacts[j]->getGroup() == cur.getGroup()) {
					cur.merge(*m_Contacts[j]);
					delete m_Contacts[j];

					m_Contacts.erase(m_Contacts.begin() + j);
					--j;
				}
			}
		}
	}
}

MirandaHistory::MirandaHistory(const Settings& settings) :
	m_Settings(settings), m_bContactsAvailable(false)
{
}

MirandaHistory::~MirandaHistory()
{
	citer_each_(ContactList, i, m_Contacts)
	{
		delete *i;
	}

	m_Contacts.clear();
}

int MirandaHistory::getContactCount()
{
	if (!m_bContactsAvailable)
		makeContactsAvailable();

	return m_Contacts.size();
}

MirandaContact& MirandaHistory::getContact(int index)
{
	if (!m_bContactsAvailable)
		makeContactsAvailable();

	assert(index >= 0 && index < m_Contacts.size());

	return *m_Contacts[index];
}