/* pop_app — протокол верхнего автомата: допустимые и запрещённые переходы. */
#include "tcheck.h"
#include "pop_app.h"

TC_TEST(boot_to_title)
{
    pop_app_reset();
    TC_EQ(pop_app_state, POP_APP_BOOT);
    TC_TRUE(pop_app_dispatch(POP_APP_EV_BOOT_READY));
    TC_EQ(pop_app_state, POP_APP_BUILD_INFO);
    TC_TRUE(pop_app_dispatch(POP_APP_EV_BUILD_DONE));
    TC_EQ(pop_app_state, POP_APP_TITLE);
}

TC_TEST(level_load_roundtrip)
{
    pop_app_reset();
    pop_app_dispatch(POP_APP_EV_BOOT_READY);
    pop_app_dispatch(POP_APP_EV_BUILD_DONE);
    TC_TRUE(pop_app_dispatch(POP_APP_EV_NEW_GAME));
    TC_EQ(pop_app_state, POP_APP_LEVEL_LOAD);
    TC_TRUE(pop_app_dispatch(POP_APP_EV_LEVEL_READY));
    TC_EQ(pop_app_state, POP_APP_PLAYING);
    TC_TRUE(pop_app_dispatch(POP_APP_EV_PAUSE));
    TC_EQ(pop_app_state, POP_APP_PAUSE_MENU);
    TC_TRUE(pop_app_dispatch(POP_APP_EV_RESUME));
    TC_EQ(pop_app_state, POP_APP_PLAYING);
    TC_TRUE(pop_app_dispatch(POP_APP_EV_LEVEL_FINISHED));
    TC_EQ(pop_app_state, POP_APP_LEVEL_LOAD);
    TC_TRUE(pop_app_dispatch(POP_APP_EV_LEVEL_READY));
    TC_EQ(pop_app_state, POP_APP_PLAYING);
}

TC_TEST(rejects_wrong_event)
{
    pop_app_reset();
    TC_FALSE(pop_app_dispatch(POP_APP_EV_LEVEL_READY));
    TC_EQ(pop_app_state, POP_APP_BOOT);
    TC_TRUE(pop_app_dispatch(POP_APP_EV_QUIT));
    TC_EQ(pop_app_state, POP_APP_QUIT);
    TC_FALSE(pop_app_dispatch(POP_APP_EV_BOOT_READY));
}

TC_TEST(future_routes_are_declared)
{
    pop_app_reset();
    pop_app_state = POP_APP_TITLE;
    TC_TRUE(pop_app_dispatch(POP_APP_EV_NEW_GAME));
    TC_EQ(pop_app_state, POP_APP_LEVEL_LOAD);
    TC_TRUE(pop_app_dispatch(POP_APP_EV_LEVEL_READY));
    TC_EQ(pop_app_state, POP_APP_PLAYING);
    TC_TRUE(pop_app_dispatch(POP_APP_EV_TIME_EXPIRED));
    TC_EQ(pop_app_state, POP_APP_TIME_EXPIRED);
    TC_TRUE(pop_app_dispatch(POP_APP_EV_CUTSCENE_FINISHED));
    TC_EQ(pop_app_state, POP_APP_TITLE);
}

TC_TEST(prelevel_cutscene_route)
{
    pop_app_state = POP_APP_PLAYING;
    TC_TRUE(pop_app_dispatch(POP_APP_EV_CUTSCENE_STARTED));
    TC_EQ(pop_app_state, POP_APP_CUTSCENE);
    TC_TRUE(pop_app_dispatch(POP_APP_EV_CUTSCENE_FINISHED));
    TC_EQ(pop_app_state, POP_APP_LEVEL_LOAD);
}

TC_TEST(demo_routes)
{
    pop_app_reset();
    pop_app_dispatch(POP_APP_EV_BOOT_READY);
    pop_app_dispatch(POP_APP_EV_BUILD_DONE);
    TC_TRUE(pop_app_dispatch(POP_APP_EV_INTRO_STARTED));
    TC_EQ(pop_app_state, POP_APP_INTRO);
    TC_TRUE(pop_app_dispatch(POP_APP_EV_CUTSCENE_FINISHED));
    TC_EQ(pop_app_state, POP_APP_DEMO);
    TC_TRUE(pop_app_dispatch(POP_APP_EV_DEMO_FINISHED));
    TC_EQ(pop_app_state, POP_APP_TITLE);
    TC_TRUE(pop_app_dispatch(POP_APP_EV_DEMO_STARTED));
    TC_TRUE(pop_app_dispatch(POP_APP_EV_NEW_GAME));
    TC_EQ(pop_app_state, POP_APP_LEVEL_LOAD);
}

TC_TEST(intro_skip_starts_new_game)
{
    pop_app_reset();
    pop_app_dispatch(POP_APP_EV_BOOT_READY);
    pop_app_dispatch(POP_APP_EV_BUILD_DONE);
    pop_app_dispatch(POP_APP_EV_INTRO_STARTED);
    TC_EQ(pop_app_state, POP_APP_INTRO);
    TC_TRUE(pop_app_dispatch(POP_APP_EV_NEW_GAME));
    TC_EQ(pop_app_state, POP_APP_LEVEL_LOAD);
}

TC_TEST(restart_game_returns_to_intro)
{
    pop_app_state = POP_APP_PLAYING;
    TC_TRUE(pop_app_dispatch(POP_APP_EV_PAUSE));
    TC_EQ(pop_app_state, POP_APP_PAUSE_MENU);
    TC_TRUE(pop_app_dispatch(POP_APP_EV_RESTART_INTRO));
    TC_EQ(pop_app_state, POP_APP_TITLE);
}

/* Финал ВРЕМЕННО ведёт мимо Hall of Fame прямо в title: экран HOF после
 * победы показывает чёрное, и застревать в нём хуже, чем не показывать
 * (решение пользователя 2026-08-24, BUGS_OPEN.md#hof-after-ending).  Сам
 * маршрут HOF -> TITLE остаётся живым: в него ходит title-экран. */
TC_TEST(ending_to_title_route)
{
    pop_app_state = POP_APP_PLAYING;
    TC_TRUE(pop_app_dispatch(POP_APP_EV_ENDING_STARTED));
    TC_EQ(pop_app_state, POP_APP_ENDING);
    TC_TRUE(pop_app_dispatch(POP_APP_EV_ENDING_FINISHED));
    TC_EQ(pop_app_state, POP_APP_TITLE);
}

TC_TEST(hof_route_still_exits_to_title)
{
    pop_app_state = POP_APP_HALL_OF_FAME;
    TC_TRUE(pop_app_dispatch(POP_APP_EV_HOF_FINISHED));
    TC_EQ(pop_app_state, POP_APP_TITLE);
}

void main(void)
{
    TC_RUN(boot_to_title);
    TC_RUN(level_load_roundtrip);
    TC_RUN(rejects_wrong_event);
    TC_RUN(future_routes_are_declared);
    TC_RUN(prelevel_cutscene_route);
    TC_RUN(demo_routes);
    TC_RUN(intro_skip_starts_new_game);
    TC_RUN(restart_game_returns_to_intro);
    TC_RUN(ending_to_title_route);
    TC_RUN(hof_route_still_exits_to_title);
}