//
//  UIModeController.h
//
//  Handling of application user interface modes (full, kiosk and kid).
//  This includes switching the mode when the UI mode passkey is used.
//

#pragma once
#ifndef ES_APP_VIEWS_UI_MODE_CONTROLLER_H
#define ES_APP_VIEWS_UI_MODE_CONTROLLER_H

#include <vector>
#include <string>

class FileData;
class InputConfig;
class ViewController;

struct Input;

class UIModeController
{
public:
    static UIModeController* getInstance();

    // Monitor input for UI mode change, returns true (consumes input) when a UI mode
    // change is triggered.
    bool listen(InputConfig* config, Input input);

    // Get the current Passphrase as a (unicode) formatted, comma-separated, string.
    std::string getFormattedPassKeyStr();

    // Check for change in UI mode.
    void monitorUIMode();

    bool isUIModeFull();
    bool isUIModeKid();
    bool isUIModeKiosk();
    inline std::vector<std::string> getUIModes() { return mUIModes; };

private:
    UIModeController();
    bool inputIsMatch(InputConfig * config, Input input);
    bool isValidInput(InputConfig * config, Input input);
    void logInput(InputConfig * config, Input input);

    // Return UI mode to 'full'.
    void unlockUIMode();

    static UIModeController * sInstance;
    const std::vector<std::string> mUIModes = { "Full", "Kiosk", "Kid" };

    // Default passkeyseq = "uuddlrlrba", as defined in the setting 'UIMode_passkey'.
    std::string mPassKeySequence;
    int mPassKeyCounter;
    const std::vector<std::string> mInputVals =
            { "up", "down", "left", "right", "a", "b", "x", "y" };
    std::string mCurrentUIMode;
};

#endif // ES_APP_VIEWS_UI_MODE_CONTROLLER_H