src/openvic-simulation/scripts/Script.hpp


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#pragma once

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

namespace OpenVic {
   // TODO - is template needed if context is always DefinitionManager const&?
   template<typename... _Context>
   struct Script {
   private:
      ast::NodeCPtr _root;

   protected:
      virtual bool _parse_script(ast::NodeCPtr root, _Context... context) = 0;

   public:
      Script() : _root { nullptr } {}
      Script(Script&&) = default;

      constexpr bool has_defines_node() const {
         return _root != nullptr;
      }

      constexpr NodeTools::NodeCallback auto expect_script() {
         return NodeTools::assign_variable_callback(_root);
      }

      bool parse_script(bool can_be_null, _Context... context) {
         if (_root == nullptr) {
            if (!can_be_null) {
               Logger::error("Null/missing script node!");
            }
            return can_be_null;
         }
         const bool ret = _parse_script(_root, context...);
         _root = nullptr;
         return ret;
      }
   };
}