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#pragma once
#include "platform/country_defines.hpp"
#include "platform/local_country_file.hpp"
#include <cstdint>
#include <memory>
#include <vector>
class ModelReader;
namespace platform
{
// Removes all files downloader creates during downloading of a country.
// Note. The the maps are deleted from writable dir/|dataDir|/|version| directory.
// If |dataDir| is empty (or is not set) the function deletes maps from writable dir.
void DeleteDownloaderFilesForCountry(int64_t version, CountryFile const & countryFile);
void DeleteDownloaderFilesForCountry(int64_t version, std::string const & dataDir,
CountryFile const & countryFile);
// Finds all local map files in |directory|. Version of these files is
// passed as an argument. Also, performs cleanup described in comment
// for FindAllLocalMapsAndCleanup().
void FindAllLocalMapsInDirectoryAndCleanup(std::string const & directory, int64_t version,
int64_t latestVersion,
std::vector<LocalCountryFile> & localFiles);
// Finds all local map files in resources and writable directory. For
// Android, checks /Android/obb directory. Subdirectories in the
// writable directory should have the following structure:
//
// dir/*.mwm -- map files, base name should correspond to countries.txt,
// -- version is assumed to be zero (unknown).
// dir/*.mwm.routing -- routing files for corresponding map files,
// -- version is assumed to be zero (unknown).
// dir/[0-9]+/*.mwm -- map files, base name should correspond to countries.txt,
// -- version is assumed to be the name of a directory.
// dir/[0-9]{1,18}/*.mwm.routing -- routing file for corresponding map files,
// -- version is assumed to be the name of a directory.
//
// Also, this method performs cleanup described in a comment for
// CleanupMapsDirectory().
// Note. The the maps are looked for writable dir/|dataDir|/|version| directory.
// If |dataDir| is empty (or is not set) the function looks for maps in writable dir.
void FindAllLocalMapsAndCleanup(int64_t latestVersion, std::vector<LocalCountryFile> & localFiles);
void FindAllLocalMapsAndCleanup(int64_t latestVersion, std::string const & dataDir,
std::vector<LocalCountryFile> & localFiles);
void FindAllDiffs(std::string const & dataDir, std::vector<LocalCountryFile> & diffs);
// This method removes:
// * partially downloaded non-latest maps (with version less than |latestVersion|)
// * empty directories
// * old (format v1) maps
// * old (split) Japan and Brazil maps
// * indexes for absent countries
void CleanupMapsDirectory(int64_t latestVersion);
// Tries to parse a version from a string of size not longer than 18
// symbols and representing an unsigned decimal number. Leading zeroes
// are allowed.
bool ParseVersion(std::string const & s, int64_t & version);
// When version is zero, uses writable directory, otherwise, creates
// directory with name equal to decimal representation of version.
// Note. The function assumes the maps are located in writable dir/|dataDir|/|version| directory.
// If |dataDir| is empty (or is not set) the function assumes that maps are in writable dir.
std::shared_ptr<LocalCountryFile> PreparePlaceForCountryFiles(int64_t version, CountryFile const & countryFile);
std::shared_ptr<LocalCountryFile> PreparePlaceForCountryFiles(int64_t version, std::string const & dataDir,
CountryFile const & countryFile);
// Note. The function assumes the maps are located in writable dir/|dataDir|/|version| directory.
// If |dataDir| is empty (or is not set) the function assumes that maps are in writable dir.
std::string GetFileDownloadPath(int64_t version, CountryFile const & countryFile, MapFileType type);
std::string GetFileDownloadPath(int64_t version, std::string const & dataDir,
CountryFile const & countryFile, MapFileType type);
std::unique_ptr<ModelReader> GetCountryReader(LocalCountryFile const & file, MapFileType type);
// An API for managing country indexes.
class CountryIndexes
{
public:
enum class Index
{
Bits,
Nodes,
Offsets
};
/// Prepares (if necessary) directory for country indexes. Local file
/// should point to existing local country files.
/// @throw FileSystemException if any file system error occured.
static void PreparePlaceOnDisk(LocalCountryFile const & localFile);
// Removes country indexes from disk including containing directory.
static bool DeleteFromDisk(LocalCountryFile const & localFile);
// Returns full path to country index. Note that this method does
// not create a file on disk - it just returns a path where the
// index should be created/accessed/removed.
static std::string GetPath(LocalCountryFile const & localFile, Index index);
// Pushes to the exts's end possible index files extensions.
static void GetIndexesExts(std::vector<std::string> & exts);
// Returns true if |file| corresponds to an index file.
static bool IsIndexFile(std::string const & file);
private:
friend void UnitTest_LocalCountryFile_CountryIndexes();
friend void UnitTest_LocalCountryFile_DoNotDeleteUserFiles();
static std::string IndexesDir(LocalCountryFile const & localFile);
};
std::string DebugPrint(CountryIndexes::Index index);
} // namespace platform
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