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#pragma once

#include <cstddef>
#include <string_view>

#include "openvic-simulation/dataloader/NodeTools.hpp"
#include "openvic-simulation/types/IdentifierRegistry.hpp"

namespace OpenVic {
   struct IssueManager;

   // Issue group (i.e. trade_policy)
   struct IssueGroup : HasIdentifier {
      friend struct IssueManager;

   protected:
      IssueGroup(std::string_view identifier);

   public:
      IssueGroup(IssueGroup&&) = default;
   };

   // Issue (i.e. protectionism)
   struct Issue : HasIdentifier {
      friend struct IssueManager;

   private:
      IssueGroup const& PROPERTY(group);

      // TODO: policy modifiers, policy rule changes

   protected:
      Issue(std::string_view identifier, IssueGroup const& group);

   public:
      Issue(Issue&&) = default;
   };

   // Reform type (i.e. political_issues)
   struct ReformType : HasIdentifier {
      friend struct IssueManager;

   private:
      bool uncivilised; // whether this group is available to non-westernised countries
      // in vanilla education, military and economic reforms are hardcoded to true and the rest to false

      ReformType(std::string_view new_identifier, bool uncivilised);

   public:
      ReformType(ReformType&&) = default;
   };

   // Reform group (i.e. slavery)
   struct ReformGroup : IssueGroup {
      friend struct IssueManager;

   private:
      ReformType const& PROPERTY(type);
      const bool PROPERTY_CUSTOM_NAME(ordered, is_ordered); // next_step_only
      const bool PROPERTY_CUSTOM_NAME(administrative, is_administrative);

      ReformGroup(std::string_view identifier, ReformType const& type, bool ordered, bool administrative);

   public:
      ReformGroup(ReformGroup&&) = default;
   };

   // Reform (i.e. yes_slavery)
   struct Reform : Issue {
      friend struct IssueManager;

   private:
      ReformGroup const& PROPERTY(reform_group); // stores an already casted reference
      const size_t PROPERTY(ordinal); // assigned by the parser to allow policy sorting

      Reform(std::string_view new_identifier, ReformGroup const& group, size_t ordinal);

      // TODO: conditions to allow,

   public:
      Reform(Reform&&) = default;
   };

   // Issue manager - holds the registries
   struct IssueManager {
   private:
      IdentifierRegistry<IssueGroup> issue_groups;
      IdentifierRegistry<Issue> issues;
      IdentifierRegistry<ReformType> reform_types;
      IdentifierRegistry<ReformGroup> reform_groups;
      IdentifierRegistry<Reform> reforms;

      bool _load_issue_group(size_t& expected_issues, std::string_view identifier, ast::NodeCPtr node);
      bool _load_issue(std::string_view identifier, IssueGroup const* group, ast::NodeCPtr node);
      bool _load_reform_group(
         size_t& expected_reforms, std::string_view identifier, ReformType const* type, ast::NodeCPtr node
      );
      bool _load_reform(size_t& ordinal, std::string_view identifier, ReformGroup const* group, ast::NodeCPtr node);

   public:
      IssueManager();

      bool add_issue_group(std::string_view identifier);
      IDENTIFIER_REGISTRY_ACCESSORS(issue_group)

      bool add_issue(std::string_view identifier, IssueGroup const* group);
      IDENTIFIER_REGISTRY_ACCESSORS(issue)

      bool add_reform_type(std::string_view identifier, bool uncivilised);
      IDENTIFIER_REGISTRY_ACCESSORS(reform_type)

      bool add_reform_group(std::string_view identifier, ReformType const* type, bool ordered, bool administrative);
      IDENTIFIER_REGISTRY_ACCESSORS(reform_group)

      bool add_reform(std::string_view identifier, ReformGroup const* group, size_t ordinal);
      IDENTIFIER_REGISTRY_ACCESSORS(reform)

      bool load_issues_file(ast::NodeCPtr root);
   };
}