#include "core/jail/jinput.hpp"

#include <string>

#include "core/input/global_inputs.hpp"
#include "core/input/mouse.hpp"
#include "core/jail/jgame.hpp"
#include "core/rendering/overlay.hpp"
#include "game/options.hpp"

const bool* keystates;  // = SDL_GetKeyboardState( NULL );
SDL_Event event;
Uint8 cheat[5];
bool key_pressed = false;
int waitTime = 0;
static bool esc_blocked_ = false;  // Bloqueja ESC per polling quan l'overlay l'ha consumit

// Comprova si un scancode pertany a les tecles reservades per a la GUI
static bool isGuiKey(SDL_Scancode sc) {
    return sc == Options::keys_gui.dec_zoom ||
        sc == Options::keys_gui.inc_zoom ||
        sc == Options::keys_gui.fullscreen ||
        sc == Options::keys_gui.toggle_shader ||
        sc == Options::keys_gui.toggle_aspect_ratio ||
        sc == Options::keys_gui.toggle_supersampling ||
        sc == Options::keys_gui.next_shader ||
        sc == Options::keys_gui.next_shader_preset ||
        sc == Options::keys_gui.toggle_stretch_filter ||
        sc == Options::keys_gui.toggle_render_info;
}

void JI_DisableKeyboard(Uint32 time) {
    waitTime = time;
}

void JI_moveCheats(Uint8 new_key) {
    cheat[0] = cheat[1];
    cheat[1] = cheat[2];
    cheat[2] = cheat[3];
    cheat[3] = cheat[4];
    cheat[4] = new_key;
}

void JI_Update() {
    key_pressed = false;
    keystates = SDL_GetKeyboardState(NULL);

    if (waitTime > 0) waitTime--;

    while (SDL_PollEvent(&event)) {
        if (event.type == SDL_EVENT_QUIT) JG_QuitSignal();
        if (event.type == SDL_EVENT_KEY_UP) {
            // ESC interceptat per l'overlay (doble pulsació per eixir)
            if (event.key.scancode == SDL_SCANCODE_ESCAPE) {
                if (Overlay::handleEscape()) {
                    // Consumit: primera pulsació, bloqueja ESC per polling
                    esc_blocked_ = true;
                } else {
                    // Segona pulsació: desbloqueja i passa al joc
                    esc_blocked_ = false;
                    key_pressed = true;
                    JG_QuitSignal();
                }
            } else if (!isGuiKey(event.key.scancode)) {
                // Tecles normals del joc
                key_pressed = true;
                JI_moveCheats(event.key.scancode);
            }
        }
        Mouse::handleEvent(event);
    }

    // Desbloqueja ESC quan la tecla ja no està polsada i l'overlay ha fet timeout
    if (esc_blocked_ && !keystates[SDL_SCANCODE_ESCAPE]) {
        esc_blocked_ = false;
    }

    Mouse::updateCursorVisibility();
    GlobalInputs::handle();
}

bool JI_KeyPressed(int key) {
    if (waitTime > 0) return false;
    // Si ESC està bloquejat per l'overlay, no la passem al joc
    if (key == SDL_SCANCODE_ESCAPE && esc_blocked_) return false;
    return keystates[key] != 0;
}

bool JI_CheatActivated(const char* cheat_code) {
    bool found = true;
    for (size_t i = 0; i < strlen(cheat_code); i++) {
        if (cheat[i] != cheat_code[i]) found = false;
    }
    return found;
}

bool JI_AnyKey() {
    return waitTime > 0 ? false : key_pressed;
}