ActionCancelWindowState.h

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#pragma once
#include "common/Export.h"
 
#include "action/ActionStateWindowBlock.h"
#include "common/SubjectRef.h"
 
#include <cstdint>
#include <functional>
#include <map>
#include <string>
#include <vector>
 
namespace eve::action::input {
 
using CancelSubjectResolver = std::function<Result<SubjectRef>(ecs::EntityHandle)>;
 
struct ActionCancelMatch {
    ActionExecutionId executionId;
    LogicalId         itemId;
    SubjectRef        subject;
    std::string       allowed;
    std::int32_t      priority = 0;
};
 
class EVENGINE_API_BACKENDS ActionCancelWindowState final : public IActionStateWindowSink {
public:
    explicit ActionCancelWindowState(CancelSubjectResolver resolver);
    ~ActionCancelWindowState() override;
 
    void setEnabled(bool enabled);
    [[nodiscard]] bool enabled() const;
    [[nodiscard]] bool supports(ActionStateWindowKind kind) const noexcept override;
    [[nodiscard]] Result<void> enter(const ActionStateWindowBinding& binding,
                                     const ActionTimelineEvent& event,
                                     const ActionNotifyContext& context) override;
    [[nodiscard]] Result<void> exit(const ActionStateWindowBinding& binding,
                                    const ActionTimelineEvent& event,
                                    const ActionNotifyContext& context) override;
 
    [[nodiscard]] std::vector<std::string> availableCancels(SubjectRef subject) const;
    [[nodiscard]] Result<ActionCancelMatch> match(SubjectRef subject, std::string_view input) const;
    [[nodiscard]] std::size_t activeCount() const noexcept { return active_.size(); }
 
private:
    using ActiveKey = std::pair<ActionExecutionId, std::string>;
    struct ActiveCancel {
        LogicalId                itemId;
        SubjectRef               subject;
        std::vector<std::string> allows;
        std::int32_t             priority = 0;
    };
 
    CancelSubjectResolver             resolver_;
    std::map<ActiveKey, ActiveCancel> active_;
};
 
}  // namespace eve::action::input