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path: root/src/openvic-simulation/tech/Technology.cpp
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#include "Technology.hpp"

using namespace OpenVic;
using namespace OpenVic::NodeTools;

TechnologyFolder::TechnologyFolder(std::string_view identifier) : HasIdentifier { identifier } {}

TechnologyArea::TechnologyArea(std::string_view identifier, TechnologyFolder const& folder) : HasIdentifier { identifier }, folder { folder } {}

Technology::Technology(std::string_view identifier, TechnologyArea const& area, year_t year, fixed_point_t cost, bool unciv_military, ModifierValue&& values)
   : Modifier { identifier, std::move(values), 0 }, area { area }, year { year }, cost { cost }, unciv_military { unciv_military } {}

TechnologySchool::TechnologySchool(std::string_view new_identifier, ModifierValue&& new_values) 
   : Modifier { new_identifier, std::move(new_values), 0 } {} //TODO: school icon

TechnologyManager::TechnologyManager() : technology_folders { "technology folders" }, technology_areas { "technology areas" }, 
   technologies { "technologies" }, technology_schools { "technology schools" } {}

bool TechnologyManager::add_technology_folder(std::string_view identifier) {
   if (identifier.empty()) {
      Logger::error("Invalid technology folder identifier - empty!");
      return false;
   }

   return technology_folders.add_item({ identifier });
}

bool TechnologyManager::add_technology_area(std::string_view identifier, TechnologyFolder const* folder) {
   if (identifier.empty()) {
      Logger::error("Invalid technology area identifier - empty!");
      return false;
   }

   if (folder == nullptr) {
      Logger::error("Null folder for technology area \"", identifier, "\"!");
      return false;
   }

   return technology_areas.add_item({ identifier, *folder });
}

bool TechnologyManager::add_technology(std::string_view identifier, TechnologyArea const* area, Technology::year_t year, fixed_point_t cost, bool unciv_military, ModifierValue&& values) {
   if (identifier.empty()) {
      Logger::error("Invalid technology identifier - empty!");
      return false;
   }

   if (area == nullptr) {
      Logger::error("Null area for technology \"", identifier, "\"!");
      return false;
   }

   return technologies.add_item({ identifier, *area, year, cost, unciv_military, std::move(values) });
}

bool TechnologyManager::add_technology_school(std::string_view identifier, ModifierValue&& values) {
   if (identifier.empty()) {
      Logger::error("Invalid modifier effect identifier - empty!");
      return false;
   }

   return technology_schools.add_item({ identifier, std::move(values) });
}

bool TechnologyManager::load_technology_file(ModifierManager const& modifier_manager, ast::NodeCPtr root) {
   return expect_dictionary([this, &modifier_manager](std::string_view root_key, ast::NodeCPtr root_value) -> bool {
      if (root_key == "folders") {
         return expect_dictionary([this](std::string_view folder_key, ast::NodeCPtr folder_value) -> bool {
            bool ret = add_technology_folder(folder_key);
            TechnologyFolder const* current_folder = get_technology_folder_by_identifier(folder_key);
            if (current_folder == nullptr)
               return false;
            ret &= expect_list(expect_identifier([this, current_folder](std::string_view area) -> bool {
               return add_technology_area(area, current_folder);
            }))(folder_value);
            return ret;
         })(root_value);
         lock_technology_folders();
         lock_technology_areas();
      } else if (root_key == "schools") {
         return expect_dictionary([this, &modifier_manager](std::string_view school_key, ast::NodeCPtr school_value) -> bool {
            ModifierValue modifiers;
            bool ret = modifier_manager.expect_modifier_value(move_variable_callback(modifiers))(school_value);
            ret &= add_technology_school(school_key, std::move(modifiers));
            return ret;
         })(root_value);
         lock_technology_schools();
      } else return false;
   })(root);
}

bool TechnologyManager::load_technologies_file(ModifierManager const& modifier_manager, ast::NodeCPtr root) {
   size_t expected_technologies = 0;
   bool ret = expect_dictionary_reserve_length(technologies, [this, &expected_technologies](std::string_view key, ast::NodeCPtr value) -> bool {
      return expect_length(add_variable_callback(expected_technologies))(value);
   })(root);
   technologies.reserve(technologies.size() + expected_technologies);

   ret &= expect_dictionary([this, &modifier_manager](std::string_view tech_key, ast::NodeCPtr tech_value) -> bool {
      ModifierValue modifiers;
      std::string_view area_identifier;
      Technology::year_t year;
      fixed_point_t cost;
      bool unciv_military = false;
      
      bool ret = modifier_manager.expect_modifier_value_and_keys(move_variable_callback(modifiers),
         "area", ONE_EXACTLY, expect_identifier(assign_variable_callback(area_identifier)),
         "year", ONE_EXACTLY, expect_uint(assign_variable_callback(year)),
         "cost", ONE_EXACTLY, expect_fixed_point(assign_variable_callback(cost)),
         "unciv_military", ZERO_OR_ONE, expect_bool(assign_variable_callback(unciv_military)),
         "ai_chance", ONE_EXACTLY, expect_dictionary([this](std::string_view school_key, ast::NodeCPtr school_value) -> bool { return true; })
      )(tech_value);

      TechnologyArea const* area = get_technology_area_by_identifier(area_identifier);

      ret &= add_technology(tech_key, area, year, cost, unciv_military, std::move(modifiers));
      return ret;
   })(root);

   return ret;
}