schema_editor/comdel/domain/rule.h

#ifndef DOMAIN_RULE_H
#define DOMAIN_RULE_H

#include "address_space.h"
#include "value.h"
#include "function_signature.h"

#include <map>
#include <string>
#include <vector>
#include <optional>

namespace domain {

    struct RuleContext {
        std::map<std::string, AddressSpace> addressSpaces;
        std::map<std::string, Value> attributes;
        std::map<std::string, FunctionValidator *> function;
    };

    class Condition {
        bool negated;
        std::string function;
        std::vector<Value> params;

    public:
        Condition(std::string function, std::vector<Value> params, bool negated);

        bool evaluate(RuleContext &context);
    };

    class Action {
    public:
        enum ActionType {
            ERROR,
            WARNING
        };

    private:
        ActionType type;
        std::string message;

    public:
        Action(ActionType type, std::string message);

        ActionType getType();

        std::string getMessage();
    };

    class IfStatement {
        Condition condition;
        Action action;
    public:
        IfStatement(Condition condition, Action action);

        std::optional<Action> evaluate(RuleContext &context);
    };

    class Rule {
        std::vector<IfStatement> statements;
    public:
        explicit Rule(std::vector<IfStatement> statements);

        std::optional<Action> evaluate(RuleContext &context);
    };

} // namespace domain

#endif // DOMAIN_RULE_H