#pragma once

#include <Ast/Expressions/VarExpr.hpp>

#include <Ast/functionParameters.hpp>
#include <Core/String.hpp>
#include <Evaluator/Value/value.hpp>
#include <Core/runtimeTime.hpp>

#include <unordered_map>
#include <functional>
#include <vector>

namespace Fig
{
    namespace Builtins
    {

        /*
            // error's interface like:
            interface Error
            {
                toString() -> String;
                getErrorClass() -> String;
                getErrorMessage() -> String;
            }
        */

        const TypeInfo &getErrorInterfaceTypeInfo();

        const TypeInfo &getTypeErrorStructTypeInfo();
        /*
            interface Operation
            {
                add(..., ...) -> ...;
            }

        */

        const TypeInfo &getOperationInterfaceTypeInfo();

        const std::unordered_map<String, ObjectPtr> &getBuiltinValues();

        using BuiltinFunction = std::function<ObjectPtr(const std::vector<ObjectPtr> &)>;

        const std::unordered_map<String, int> &getBuiltinFunctionArgCounts();
        const std::unordered_map<String, BuiltinFunction> &getBuiltinFunctions();

        inline bool isBuiltinFunction(const String &name)
        {
            return getBuiltinFunctions().find(name) != getBuiltinFunctions().end();
        }

        inline BuiltinFunction getBuiltinFunction(const String &name)
        {
            auto it = getBuiltinFunctions().find(name);
            if (it == getBuiltinFunctions().end())
            {
                throw RuntimeError(String(std::format("Builtin function '{}' not found", name.toBasicString())));
            }
            return it->second;
        }

        inline int getBuiltinFunctionParamCount(const String &name)
        {
            auto it = getBuiltinFunctionArgCounts().find(name);
            if (it == getBuiltinFunctionArgCounts().end())
            {
                throw RuntimeError(String(std::format("Builtin function '{}' not found", name.toBasicString())));
            }
            return it->second;
        }
    }; // namespace Builtins
}; // namespace Fig.