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#include "storage/queued_country.hpp"
#include "base/assert.hpp"
namespace storage
{
QueuedCountry::QueuedCountry(TIndex const & index, MapOptions opt)
: m_index(index), m_init(opt), m_left(opt), m_current(MapOptions::Nothing)
{
ASSERT(GetIndex().IsValid(), ("Only valid countries may be downloaded."));
ASSERT(m_left != MapOptions::Nothing, ("Empty file set was requested for downloading."));
SwitchToNextFile();
}
void QueuedCountry::AddOptions(MapOptions opt)
{
for (MapOptions file : {MapOptions::Map, MapOptions::CarRouting})
{
if (HasOptions(opt, file) && !HasOptions(m_init, file))
{
m_init = SetOptions(m_init, file);
m_left = SetOptions(m_left, file);
}
}
}
void QueuedCountry::RemoveOptions(MapOptions opt)
{
for (MapOptions file : {MapOptions::Map, MapOptions::CarRouting})
{
if (HasOptions(opt, file) && HasOptions(m_init, file))
{
m_init = UnsetOptions(m_init, file);
m_left = UnsetOptions(m_left, file);
}
}
if (HasOptions(opt, m_current))
m_current = LeastSignificantOption(m_left);
}
bool QueuedCountry::SwitchToNextFile()
{
// static_casts are needed here because MapOptions values are
// actually enum flags (see 3party/enum_flags.hpp) and bitwise
// operators are overloaded for them.
ASSERT(HasOptions(m_left, m_current),
("Current file (", m_current, ") is not specified in left files (", m_left, ")."));
m_left = UnsetOptions(m_left, m_current);
m_current = LeastSignificantOption(m_left);
return m_current != MapOptions::Nothing;
}
} // namespace storage
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