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#pragma once
#include <vector>
#include "base_app.hpp"
// Interface to the app manager. These functions are accessible to other parts of the code, except open_apps, which is managed by the following functions.
namespace app_mgr {
// List of pointers to currently running apps.
extern std::vector<BaseApp*> open_apps;
// Init a new app, that is not running.
BaseApp* app_init(int app_id);
// Allow the running app, referenced by app_id, to invoke its render routine.
void app_render(BaseApp* app);
// Delta is in ms, from time_since_button_press()
void app_btnpressed(BaseApp* app, uint gpio, unsigned long delta);
// Call when a button is released
void app_btnreleased(BaseApp* app, uint gpio, unsigned long delta);
// This should only be called by pico-watch.cpp before app rendering, to chage the current app.
void app_switch(BaseApp* app, int new_appid);
// Requests the current app to be replaced by an other one. The replacement will be done at the right moment.
void app_switch_request(int to_appid);
// Refresh each app
void app_all_bgrefresh();
// Private functions following. I tried using anonymous namespaces but it was too complicated. I might come back to this later. Just don't use the following internal functions.
// Check if the specified app (via app_id) is already running.
// \return If app is init, pointer to app, else nullptr (more or less 0).
BaseApp* app_check_if_init(int app_id);
// Check the return value of the called application method and act on it.
void app_act_on_return_value(BaseApp* app, BaseApp::AppReturnValues return_value);
// Unconditionally set the new foreground app
void new_foreground_app(BaseApp* app);
// Called by app_init to create the app object.
BaseApp* app_create(int app_id);
// Quit the app referenced by the app_id.
void app_destroy(BaseApp* to_erase);
}
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