config_api.hpp

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#pragma once
 
#include <memory>
 
#include <boost/program_options.hpp>
#include <map>
#include <type_traits>
 
#include <fc/reflect/reflect.hpp>
 
namespace scorum {
 
class config_api
{
    const std::string _api_name;
 
    uint32_t _max_blockchain_history_depth = 100;
    uint32_t _max_blocks_history_depth = 100;
    uint32_t _max_budgets_list_size = 100;
    uint32_t _max_discussions_list_size = 100;
    uint32_t _lookup_limit = 1000;
    uint32_t _tags_to_analize_count = 8; // also includes category, domain, language
    uint32_t _max_timestamp_range_in_s = 60 * 30; // 30 minutes
 
public:
    const uint32_t& max_blockchain_history_depth;
    const uint32_t& max_blocks_history_depth;
    const uint32_t& max_budgets_list_size;
    const uint32_t& max_discussions_list_size;
    const uint32_t& lookup_limit;
    const uint32_t& tags_to_analize_count;
    const uint32_t& max_timestamp_range_in_s;
 
    boost::program_options::options_description get_options_descriptions() const;
    void set_options(const boost::program_options::variables_map& options);
 
    const std::string& api_name() const
    {
        return _api_name;
    }
 
protected:
    config_api() = delete;
    config_api(const std::string& api_name);
    config_api(config_api&);
 
private:
    static const std::string default_api_name;
 
    friend config_api& get_api_config(std::string api_name);
 
    template <typename MemberType>
    void get_option_description(boost::program_options::options_description_easy_init&, const char* member_name) const;
    template <typename MemberType>
    void set_option(const boost::program_options::variables_map&, MemberType&, const char* member_name);
 
    std::string get_option_name(const char* field, const std::string& api_name) const;
    std::string get_option_description(const char* field) const;
 
    using configs_by_api_type = std::map<std::string, std::unique_ptr<config_api>>;
    static configs_by_api_type _instances_by_api;
};
 
config_api& get_api_config(std::string api_name = std::string());
}
 
#define MAX_BLOCKCHAIN_HISTORY_DEPTH (get_api_config().max_blockchain_history_depth)
#define MAX_BLOCKS_HISTORY_DEPTH (get_api_config().max_blocks_history_depth)
#define MAX_BUDGETS_LIST_SIZE (get_api_config().max_budgets_list_size)
#define MAX_DISCUSSIONS_LIST_SIZE (get_api_config().max_discussions_list_size)
#define LOOKUP_LIMIT (get_api_config().lookup_limit)
#define TAGS_TO_ANALIZE_COUNT (get_api_config().tags_to_analize_count)
#define MAX_TIMESTAMP_RANGE_IN_S (get_api_config().max_timestamp_range_in_s)