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/// \file engine/kyuafile.hpp
/// Test suite configuration parsing and representation.

#if !defined(ENGINE_KYUAFILE_HPP)
#define ENGINE_KYUAFILE_HPP

#include <string>
#include <vector>

#include <lutok/state.hpp>

#include "engine/test_program.hpp"
#include "utils/fs/path.hpp"
#include "utils/optional.hpp"

namespace engine {


/// Representation of the configuration of a test suite.
///
/// Test suites are collections of related test programs.  They are described by
/// a configuration file.
///
/// Test suites have two path references: one to the "source root" and another
/// one to the "build root".  The source root points to the directory from which
/// the Kyuafile is being read, and all recursive inclusions are resolved
/// relative to that directory.  The build root points to the directory
/// containing the generated test programs and is prepended to the absolute path
/// of the test programs referenced by the Kyuafiles.  In general, the build
/// root will be the same as the source root; however, when using a build system
/// that supports "build directories", providing this option comes in handy to
/// allow running the tests without much hassle.
///
/// This class provides the parser for test suite configuration files and
/// methods to access the parsed data.
class kyuafile {
    /// Path to the directory containing the top-level Kyuafile loaded.
    utils::fs::path _source_root;

    /// Path to the directory containing the test programs.
    utils::fs::path _build_root;

    /// Collection of the test programs defined in the Kyuafile.
    test_programs_vector _test_programs;

public:
    explicit kyuafile(const utils::fs::path&, const utils::fs::path&,
                      const test_programs_vector&);
    ~kyuafile(void);

    static kyuafile load(const utils::fs::path&,
                         const utils::optional< utils::fs::path >);

    const utils::fs::path& source_root(void) const;
    const utils::fs::path& build_root(void) const;
    const test_programs_vector& test_programs(void) const;
};


}  // namespace engine

#endif  // !defined(ENGINE_KYUAFILE_HPP)