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#include "indexer/banners.hpp"
#include "indexer/classificator.hpp"
#include "indexer/feature.hpp"
#include "platform/platform.hpp"
#include "coding/reader_streambuf.hpp"
#include "base/stl_add.hpp"
#include "base/string_utils.hpp"
#include "defines.hpp"
namespace
{
time_t constexpr kEternity = 0;
// Convert ISO date to unix time.
bool StringToTimestamp(string const & s, time_t & result)
{
istringstream is(s);
tm time;
is >> get_time(&time, "%F");
CHECK(!is.fail(), ("Wrong date format:", s, "(expecting YYYY-MM-DD)"));
time.tm_sec = time.tm_min = time.tm_hour = 0;
time_t timestamp = mktime(&time);
if (timestamp < 0)
return false;
result = timestamp;
return true;
}
} // namespace
namespace banner
{
string Banner::GetProperty(string const & name) const
{
if (name == "lang")
{
return "ru"; // TODO(@zverik): this variable, {mwmlang}, {country} etc.
}
else
{
auto const property = m_properties.find(name);
if (property != m_properties.end())
return property->second;
}
return {};
}
Banner::Banner(string const & id)
: m_id(id), m_messageBase("banner_" + id), m_activeAfter(time(nullptr)), m_activeBefore(kEternity)
{
}
bool Banner::IsActive() const
{
if (IsEmpty())
return false;
time_t const now = time(nullptr);
return now >= m_activeAfter && (m_activeBefore == kEternity || now < m_activeBefore);
}
void Banner::SetProperty(string const & name, string const & value)
{
if (name == "messages")
{
m_messageBase = value;
}
else if (name == "icon")
{
m_iconName = value;
}
else if (name == "url")
{
CHECK(strings::StartsWith(value, "http://") || strings::StartsWith(value, "https://"),
("URL without a protocol for banner", m_id));
m_defaultUrl = value;
}
else if (name == "start")
{
CHECK(StringToTimestamp(value, m_activeAfter), ("Wrong start date", value, "for banner", m_id));
}
else if (name == "end")
{
CHECK(StringToTimestamp(value, m_activeBefore), ("Wrong end date", value, "for banner", m_id));
m_activeBefore += 24 * 60 * 60; // Add a day so we don't miss one
}
else
{
m_properties.emplace(make_pair(name, value));
}
}
string Banner::GetFormattedUrl(string const & url) const
{
string baseUrl = url.empty() ? m_defaultUrl : url;
auto start = baseUrl.find('{');
while (start != string::npos)
{
auto end = baseUrl.find('}', start + 1);
if (end == string::npos)
break;
string value = GetProperty(baseUrl.substr(start + 1, end - start - 1));
if (!value.empty())
{
baseUrl.replace(start, end - start + 1, value);
end -= end - start + 1 - value.length();
}
start = baseUrl.find('{', end + 1);
}
return baseUrl;
}
void BannerSet::ReadBanners(istream & s)
{
m_banners.clear();
Banner banner;
string type;
int lineNumber = 1;
for (string line; getline(s, line); ++lineNumber)
{
strings::Trim(line);
if (line.empty() || line.front() == '#')
continue;
auto const equals = line.find('=');
if (equals == string::npos)
{
// Section header, should be in square brackets.
CHECK(line.front() == '[' && line.back() == ']', ("Unknown syntax at line", lineNumber));
strings::Trim(line, " \t[]");
CHECK(!line.empty(), ("Empty banner ID at line", lineNumber));
if (!banner.IsEmpty())
Add(banner, type);
banner = Banner(line);
type = "sponsored-banner-" + line;
}
else
{
// Variable definition, must be inside a section.
CHECK(!banner.IsEmpty(), ("Variable definition outside a section at line", lineNumber));
string name = line.substr(0, equals);
string value = line.substr(equals + 1);
strings::Trim(name);
CHECK(!name.empty(), ("Empty variable name at line", lineNumber));
strings::Trim(value);
if (name == "type")
type = value;
else
banner.SetProperty(name, value);
}
}
if (!banner.IsEmpty())
Add(banner, type);
}
void BannerSet::Add(Banner const & banner, string const & type)
{
vector<string> v;
strings::Tokenize(type, "-", MakeBackInsertFunctor(v));
uint32_t const ctype = classif().GetTypeByPathSafe(v);
if (ctype == 0)
{
LOG(LWARNING, ("Missing type", type, "for a banner"));
}
else
{
CHECK(m_banners.find(ctype) == m_banners.end(), ("Duplicate banner type", type));
m_banners.emplace(make_pair(ctype, banner));
}
}
bool BannerSet::HasBannerForType(uint32_t type) const
{
return m_banners.find(type) != m_banners.end();
}
Banner const & BannerSet::GetBannerForType(uint32_t type) const
{
auto const result = m_banners.find(type);
CHECK(result != m_banners.end(), ("GetBannerForType() for absent banner"));
return result->second;
}
bool BannerSet::HasBannerForFeature(FeatureType const & ft) const
{
bool result = false;
ft.ForEachType([this, &result](uint32_t type)
{
if (!result && HasBannerForType(type))
result = true;
});
return result;
}
Banner const & BannerSet::GetBannerForFeature(FeatureType const & ft) const
{
vector<uint32_t> types;
ft.ForEachType([this, &types](uint32_t type)
{
if (types.empty() && HasBannerForType(type))
types.push_back(type);
});
CHECK(!types.empty(), ("No banners for the feature", ft));
return GetBannerForType(types.front());
}
void BannerSet::LoadBanners()
{
try
{
auto reader = GetPlatform().GetReader(BANNERS_FILE);
ReaderStreamBuf buffer(move(reader));
istream s(&buffer);
ReadBanners(s);
}
catch (FileAbsentException const &)
{
LOG(LWARNING, ("No", BANNERS_FILE, "found"));
return;
}
}
} // namespace banner
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