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/// \file cli/common.hpp
/// Utility functions to implement CLI subcommands.

#if !defined(CLI_COMMON_HPP)
#define CLI_COMMON_HPP

#include <memory>
#include <set>
#include <vector>

#include "engine/test_result.hpp"
#include "utils/cmdline/base_command.hpp"
#include "utils/cmdline/options.hpp"
#include "utils/cmdline/parser.hpp"
#include "utils/cmdline/ui.hpp"
#include "utils/config/tree.hpp"
#include "utils/datetime.hpp"
#include "utils/fs/path.hpp"
#include "utils/optional.hpp"

namespace utils {
namespace fs {
class path;
}  // namespace fs
}  // namespace utils

namespace engine {
class test_case;
class test_filter;
}  // namespace engine

namespace cli {


extern const utils::cmdline::path_option build_root_option;
extern const utils::cmdline::path_option kyuafile_option;
extern const utils::cmdline::list_option results_filter_option;
extern const utils::cmdline::path_option store_option;
extern const utils::cmdline::property_option variable_option;


/// Base type for commands defined in the cli module.
///
/// All commands in Kyua receive a configuration object as their runtime
/// data parameter because the configuration file applies to all the
/// commands.
typedef utils::cmdline::base_command< utils::config::tree > cli_command;


/// Scoped, strictly owned pointer to a cli_command.
typedef std::unique_ptr< cli_command > cli_command_ptr;


/// Collection of result types.
///
/// This is a vector rather than a set because we want to respect the order in
/// which the user provided the types.
typedef std::vector< engine::test_result::result_type > result_types;


utils::optional< utils::fs::path > get_home(void);

utils::optional< utils::fs::path > build_root_path(
    const utils::cmdline::parsed_cmdline&);
utils::fs::path kyuafile_path(const utils::cmdline::parsed_cmdline&);
result_types get_result_types(const utils::cmdline::parsed_cmdline&);
utils::fs::path store_path(const utils::cmdline::parsed_cmdline&);

std::set< engine::test_filter > parse_filters(
    const utils::cmdline::args_vector&);
bool report_unused_filters(const std::set< engine::test_filter >&,
                           utils::cmdline::ui*);

std::string format_delta(const utils::datetime::delta&);
std::string format_result(const engine::test_result&);
std::string format_test_case_id(const engine::test_case&);
std::string format_test_case_id(const engine::test_filter&);


}  // namespace cli

#endif  // !defined(CLI_COMMON_HPP)