Core/Calendar: Completely rewrite and fix most of the calendar system

There are still some issues that need to be fixed, for more info see CalendarHandler.cpp TODO part.
Some unblizzlike behaviour possible, we don't have a lot of sniffs.
Big thanks to @Warpten, he joined my project and helped a lot.

IMPORTANT NOTE: Read / append packed time functions in ByteBuffer.h are not correct, they need to be fixed in order to have event times accurate

Signed-off-by: Nay <dnpd.dd@gmail.com>

1 files changed, 36 insertions, 0 deletions

diff --git a/src/server/game/Guilds/Guild.cpp b/src/server/game/Guilds/Guild.cpp
index 4db293f0e89..e1be2049dad 100755
--- a/src/server/game/Guilds/Guild.cpp
+++ b/src/server/game/Guilds/Guild.cpp
@@ -25,6 +25,7 @@
 #include "SocialMgr.h"
 #include "Log.h"
 #include "AccountMgr.h"
+#include "CalendarMgr.h"
 
 #define MAX_GUILD_BANK_TAB_TEXT_LEN 500
 #define EMBLEM_PRICE 10 * GOLD
@@ -1579,6 +1580,8 @@ void Guild::HandleLeaveMember(WorldSession* session)
 
         SendCommandResult(session, GUILD_COMMAND_QUIT, ERR_GUILD_COMMAND_SUCCESS, m_name);
     }
+
+    sCalendarMgr->RemovePlayerGuildEventsAndSignups(player->GetGUID(), GetId());
 }
 
 void Guild::HandleRemoveMember(WorldSession* session, std::string const& name)
@@ -2138,6 +2141,39 @@ void Guild::BroadcastPacket(WorldPacket* packet) const
             player->GetSession()->SendPacket(packet);
 }
 
+void Guild::MassInviteToEvent(WorldSession* session, uint32 minLevel, uint32 maxLevel, uint32 minRank)
+{
+    uint32 count = 0;
+
+    WorldPacket data(SMSG_CALENDAR_FILTER_GUILD);
+    data << uint32(count); // count placeholder
+
+    for (Members::const_iterator itr = m_members.begin(); itr != m_members.end(); ++itr)
+    {
+        // not sure if needed, maybe client checks it as well
+        if (count >= CALENDAR_MAX_INVITES)
+        {
+            if (Player* player = session->GetPlayer())
+                sCalendarMgr->SendCalendarCommandResult(player->GetGUID(), CALENDAR_ERROR_INVITES_EXCEEDED);
+            return;
+        }
+
+        Member* member = itr->second;
+        uint32 level = Player::GetLevelFromDB(member->GetGUID());
+
+        if (member->GetGUID() != session->GetPlayer()->GetGUID() && level >= minLevel && level <= maxLevel && member->IsRankNotLower(minRank))
+        {
+            data.appendPackGUID(member->GetGUID());
+            data << uint8(0); // unk
+            ++count;
+        }
+    }
+
+    data.put<uint32>(0, count);
+
+    session->SendPacket(&data);
+}
+
 // Members handling
 bool Guild::AddMember(uint64 guid, uint8 rankId)
 {