EditConstraint.h

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#pragma once
#include "common/Export.h"
 
 
#include "editor/EditorResult.h"
 
#include <string>
#include <vector>
 
namespace eve::editor {
 
class EditorContext;
class IEditCommand;
 
enum class ConstraintDisposition { Allow, Warning, Reject };
 
struct EVENGINE_API_ORCHESTRATION ConstraintResult {
    ConstraintDisposition disposition = ConstraintDisposition::Allow;
    std::string message;
    static ConstraintResult allow() { return {}; }
    static ConstraintResult warning(std::string message);
    static ConstraintResult reject(std::string message);
};
 
class IEditConstraint {
public:
    virtual ~IEditConstraint() = default;
    virtual ConstraintResult evaluate(EditorContext &context, IEditCommand &command) = 0;
};
 
class EVENGINE_API_ORCHESTRATION EditConstraintPipeline {
public:
    bool add(IEditConstraint *constraint);
    bool remove(IEditConstraint *constraint);
    void clear();
    bool evaluate(EditorContext &context, IEditCommand &command);
    [[nodiscard]] Result<void> evaluateChecked(EditorContext &context, IEditCommand &command);
    int diagnosticCount() const { return static_cast<int>(diagnostics_.size()); }
    const std::string &diagnostic(int index) const;
    bool rejected() const { return rejected_; }
private:
    std::vector<IEditConstraint *> constraints_;
    std::vector<std::string> diagnostics_;
    std::vector<EditorDiagnostic> structuredDiagnostics_;
    bool rejected_ = false;
};
 
}  // namespace eve::editor