MapUtil = {};

function MapUtil.IsMapTypeZone(mapID)
	local mapInfo = C_Map.GetMapInfo(mapID);
	return mapInfo and mapInfo.mapType == Enum.UIMapType.Zone;
end

function MapUtil.GetMapParentInfo(mapID, mapType, topMost)
	local candidate;
	local mapInfo = C_Map.GetMapInfo(mapID);
	while mapInfo do
		if ( mapInfo.mapType == mapType ) then
			if ( topMost ) then
				candidate = mapInfo;
			else
				return mapInfo;
			end
		end
		mapInfo = C_Map.GetMapInfo(mapInfo.parentMapID);
	end
	return candidate;
end

function MapUtil.ShouldMapTypeShowQuests(mapType)
	return mapType ~= Enum.UIMapType.World and mapType ~= Enum.UIMapType.Continent and mapType ~= Enum.UIMapType.Cosmic;
end

function MapUtil.ShouldShowTask(mapID, info)
	return (mapID == info.mapID) and HaveQuestData(info.questId);
end

function MapUtil.MapHasUnlockedBounties(mapID)
	--[[local bounties, displayLocation, lockedQuestID = GetQuestBountyInfoForMapID(mapID);
	return displayLocation and not lockedQuestID and #bounties > 0;]]
end

function MapUtil.MapHasEmissaries(mapID)
	--[[local bounties, displayLocation, lockedQuestID = GetQuestBountyInfoForMapID(mapID);
	return not not displayLocation;]]
end

function MapUtil.FindBestAreaNameAtMouse(mapID, normalizedCursorX, normalizedCursorY)
	local exploredAreaIDs = C_MapExplorationInfo.GetExploredAreaIDsAtPosition(mapID, CreateVector2D(normalizedCursorX, normalizedCursorY));
	if exploredAreaIDs then
		for i, areaID in ipairs(exploredAreaIDs) do
			local name = C_Map.GetAreaInfo(areaID);
			if name then
				return name;
			end
		end
	end
	return nil;
end

function MapUtil.GetDisplayableMapForPlayer()
	local mapID = C_Map.GetBestMapForUnit("player");
	if mapID then
		repeat
			if C_Map.MapHasArt(mapID) then
				return mapID;
			end
			local mapInfo = C_Map.GetMapInfo(mapID);
			mapID = mapInfo and mapInfo.parentMapID or 0;
		until mapID == 0;
	end
	return C_Map.GetFallbackWorldMapID();
end

function MapUtil.GetRelatedBountyZoneMaps(mapID)
	local mapInfo = C_Map.GetMapInfo(mapID);
	local targetBountySetID;
	-- find the world map and any bountySetID on the way
	while mapInfo and mapInfo.mapType ~= Enum.UIMapType.World do
		if mapInfo.mapType == Enum.UIMapType.Continent then
			local continentBountySetID = C_Map.GetBountySetIDForMap(mapInfo.mapID);
			if continentBountySetID > 0 then
				targetBountySetID = continentBountySetID;
			end
		end
		mapInfo = C_Map.GetMapInfo(mapInfo.parentMapID);
	end

	local ALL_DESCENDANTS = true;
	local bountyMaps = { };
	if targetBountySetID and mapInfo and mapInfo.mapType == Enum.UIMapType.World then
		-- check all first-order continents on that world for same bountySetID
		local continents = C_Map.GetMapChildrenInfo(mapInfo.mapID, Enum.UIMapType.Continent);
		for i, continentInfo in ipairs(continents) do
			local continentBountySetID = C_Map.GetBountySetIDForMap(continentInfo.mapID);
			if continentBountySetID == targetBountySetID then
				-- add all child zones
				local zones = C_Map.GetMapChildrenInfo(continentInfo.mapID, Enum.UIMapType.Zone, ALL_DESCENDANTS);
				for i, zoneInfo in ipairs(zones) do
					tinsert(bountyMaps, zoneInfo.mapID);
				end
			end
		end
	end
	return bountyMaps;
end