#ifndef DOMAIN_FUNCTION_VALIDATOR_H
#define DOMAIN_FUNCTION_VALIDATOR_H

#include<functional>
#include<vector>

#include "value.h"

namespace domain {

class FunctionValidator {
private:
    std::string name;
    std::vector<Value::ValueType> signature;

protected:
    FunctionValidator(std::string name, std::vector<Value::ValueType> signature) {
        this->name = name;
        this->signature = signature;
    }

public:

    std::string getName() {
        return name;
    }

    std::vector<Value::ValueType> getSignature() {
        return signature;
    }

    bool validateSignature(std::vector<Value> signature) {
        if(this->signature.size() != signature.size()) {
            return false;
        }

        for(int i=0; i<this->signature.size(); i++) {
            if(this->signature[i] != signature[i].getType()) {
                return false;
            }
        }
        return true;
    }

    virtual bool validate(std::vector<Value> values) = 0;
    virtual void clear() = 0;
};

std::vector<FunctionValidator*> getSupportedValidators();

} // namespace domain

#endif // DOMAIN_FUNCTION_VALIDATOR_H