/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */


#include "ultima/nuvie/core/nuvie_defs.h"
#include "ultima/nuvie/gui/gui.h"
#include "ultima/nuvie/gui/gui_types.h"
#include "ultima/nuvie/gui/gui_button.h"
#include "ultima/nuvie/gui/gui_text.h"
#include "ultima/nuvie/gui/gui_text_toggle_button.h"
#include "ultima/nuvie/gui/gui_callback.h"
#include "ultima/nuvie/gui/gui_area.h"
#include "ultima/nuvie/gui/gui_dialog.h"
#include "ultima/nuvie/menus/gameplay_dialog.h"
#include "ultima/nuvie/core/party.h"
#include "ultima/nuvie/script/script.h"
#include "ultima/nuvie/misc/u6_misc.h"
#include "ultima/nuvie/core/converse.h"
#include "ultima/nuvie/gui/widgets/converse_gump.h"
#include "ultima/nuvie/conf/configuration.h"
#include "ultima/nuvie/gui/widgets/background.h"
#include "ultima/nuvie/keybinding/keys.h"

namespace Ultima {
namespace Nuvie {

static const int GD_WIDTH = 274;
static const int GD_HEIGHT = 179;

GameplayDialog::GameplayDialog(GUI_CallBack *callback)
	: GUI_Dialog(Game::get_game()->get_game_x_offset() + (Game::get_game()->get_game_width() - GD_WIDTH) / 2,
	             Game::get_game()->get_game_y_offset() + (Game::get_game()->get_game_height() - GD_HEIGHT) / 2,
	             GD_WIDTH, GD_HEIGHT, 244, 216, 131, GUI_DIALOG_UNMOVABLE), callback_object(callback) {
	init();
	grab_focus();
}

int get_selected_game_index(const Std::string configvalue) {
	if (string_i_compare(configvalue, "menuselect")) {
		return 0;
	} else if (string_i_compare(configvalue, "ultima6")) {
		return 1;
	} else if (string_i_compare(configvalue, "savage")) {
		return 2;
	} else if (string_i_compare(configvalue, "martian")) {
		return 3;
	}

	return 1; //default to U6
}

bool GameplayDialog::init() {
	int height = 12;
	int yesno_width = 32;
	const int selected_game_width = 120;
	int colX[] = { 9, 40, 233 };
	int buttonY = 9;
	uint8 textY = 11;
	uint8 row_h = 13;
	b_index_num = -1;
	last_index = 0;

	GUI_Widget *widget;
	GUI *gui = GUI::get_gui();
	GUI_Font *font = gui->get_font();
	Game *game = Game::get_game();
	Configuration *config = Game::get_game()->get_config();
	const char *const yesno_text[] = { "no", "yes" };
	const char *const formation_text[] = { "standard", "column", "row", "delta" };
	const char *const selected_game_text[] = {"Menu Select", "Ultima VI", "Savage Empire", "Martian Dreams"};
	const char *const converse_style_text[] = {"Default", "U7 Style", "WOU Style"};

	Std::string selected_game;
	config->value("config/loadgame", selected_game, "");

	bool is_u6 = (game->get_game_type() == NUVIE_GAME_U6);
	bool show_stealing, skip_intro, show_console, use_original_cursor, solid_bg;
	Std::string key = config_get_game_key(config);
	config->value(key + "/skip_intro", skip_intro, false);
	config->value("config/general/show_console", show_console, false);
	config->value("config/general/enable_cursors", use_original_cursor, false);
// party formation
	widget = new GUI_Text(colX[0], textY, 0, 0, 0, "Party formation:", font);
	AddWidget(widget);
	formation_button = new GUI_TextToggleButton(this, 197, buttonY, 68, height, formation_text, 4, game->get_party()->get_formation(), font, BUTTON_TEXTALIGN_CENTER, this, 0);
	AddWidget(formation_button);
	button_index[last_index] = formation_button;
	if (is_u6) {
// show stealing
		widget = new GUI_Text(colX[0], textY += row_h, 0, 0, 0, "Look shows private property:", font);
		AddWidget(widget);
		config->value("config/ultima6/show_stealing", show_stealing, false);
		stealing_button = new GUI_TextToggleButton(this, colX[2], buttonY += row_h, yesno_width, height, yesno_text, 2, show_stealing, font, BUTTON_TEXTALIGN_CENTER, this, 0);
		AddWidget(stealing_button);
		button_index[last_index += 1] = stealing_button;
	} else {
		stealing_button = nullptr;
	}
	if (!Game::get_game()->is_new_style()) {
// Use text gump
		widget = new GUI_Text(colX[0], textY += row_h, 0, 0, 0, "Use text gump:", font);
		AddWidget(widget);
		text_gump_button = new GUI_TextToggleButton(this, colX[2], buttonY += row_h, yesno_width, height, yesno_text, 2, game->is_using_text_gumps(), font, BUTTON_TEXTALIGN_CENTER, this, 0);
		AddWidget(text_gump_button);
		button_index[last_index += 1] = text_gump_button;
// use converse gump
		widget = new GUI_Text(colX[0], textY += row_h, 0, 0, 0, "Converse gump:", font);
		AddWidget(widget);
		converse_gump_button = new GUI_TextToggleButton(this, 187, buttonY += row_h, 78, height, converse_style_text, 3, get_converse_gump_type_from_config(config), font, BUTTON_TEXTALIGN_CENTER, this, 0);
		AddWidget(converse_gump_button);
		old_converse_gump_type = game->get_converse_gump_type();
		button_index[last_index += 1] = converse_gump_button;
	} else {
		text_gump_button = nullptr;
		converse_gump_button = nullptr;
	}
	if (!game->is_forcing_solid_converse_bg()) {
// converse solid bg
		widget = new GUI_Text(colX[0], textY += row_h, 0, 0, 0, "Converse gump has solid bg:", font);
		AddWidget(widget);
		config->value(key + "/converse_solid_bg", solid_bg, false); // need to check cfg since converse_gump may be nullptr
		converse_solid_bg_button = new GUI_TextToggleButton(this, colX[2], buttonY += row_h, yesno_width, height, yesno_text, 2, solid_bg, font, BUTTON_TEXTALIGN_CENTER, this, 0);
		AddWidget(converse_solid_bg_button);
		button_index[last_index += 1] = converse_solid_bg_button;
	} else
		converse_solid_bg_button = nullptr;


// following require restart
	widget = new GUI_Text(colX[0], textY += row_h * 2, 0, 0, 0, "The following require a restart:", font);
	AddWidget(widget);
// game select
	widget = new GUI_Text(colX[1], textY += row_h, 0, 0, 0, "Startup game:", font);
	AddWidget(widget);
	startup_game_button = new GUI_TextToggleButton(this, 145, buttonY += row_h * 3, selected_game_width, height, selected_game_text, 4, get_selected_game_index(selected_game),  font, BUTTON_TEXTALIGN_CENTER, this, 0);
	AddWidget(startup_game_button);
	button_index[last_index += 1] = startup_game_button;
// skip intro
	widget = new GUI_Text(colX[1], textY += row_h, 0, 0, 0, "Skip intro:", font);
	AddWidget(widget);
	skip_intro_button = new GUI_TextToggleButton(this, colX[2], buttonY += row_h, yesno_width, height, yesno_text, 2, skip_intro,  font, BUTTON_TEXTALIGN_CENTER, this, 0);
	AddWidget(skip_intro_button);
	button_index[last_index += 1] = skip_intro_button;
// show console
	widget = new GUI_Text(colX[1], textY += row_h, 0, 0, 0, "Show console:", font);
	AddWidget(widget);
	show_console_button = new GUI_TextToggleButton(this, colX[2], buttonY += row_h, yesno_width, height, yesno_text, 2, show_console, font, BUTTON_TEXTALIGN_CENTER, this, 0);
	AddWidget(show_console_button);
	button_index[last_index += 1] = show_console_button;
// original cursor
	widget = new GUI_Text(colX[1], textY += row_h, 0, 0, 0, "Use original cursors:", font);
	AddWidget(widget);
	cursor_button = new GUI_TextToggleButton(this, colX[2], buttonY += row_h, yesno_width, height, yesno_text, 2, use_original_cursor, font, BUTTON_TEXTALIGN_CENTER, this, 0);
	AddWidget(cursor_button);
	button_index[last_index += 1] = cursor_button;

	cancel_button = new GUI_Button(this, 77, GD_HEIGHT - 20, 54, height, "Cancel", font, BUTTON_TEXTALIGN_CENTER, 0, this, 0);
	AddWidget(cancel_button);
	button_index[last_index += 1] = cancel_button;
	save_button = new GUI_Button(this, 158, GD_HEIGHT - 20, 40, height, "Save", font, BUTTON_TEXTALIGN_CENTER, 0, this, 0);
	AddWidget(save_button);
	button_index[last_index += 1] = save_button;

	return true;
}

GameplayDialog::~GameplayDialog() {
}

GUI_status GameplayDialog::close_dialog() {
	Delete(); // mark dialog as deleted. it will be freed by the GUI object
	callback_object->callback(0, this, this);
	return GUI_YUM;
}

GUI_status GameplayDialog::KeyDown(const Common::KeyState &key) {
	KeyBinder *keybinder = Game::get_game()->get_keybinder();
	ActionType a = keybinder->get_ActionType(key);

	switch (keybinder->GetActionKeyType(a)) {
	case NORTH_KEY:
	case WEST_KEY:
		if (b_index_num != -1)
			button_index[b_index_num]->set_highlighted(false);

		if (b_index_num <= 0)
			b_index_num = last_index;
		else
			b_index_num = b_index_num - 1;
		button_index[b_index_num]->set_highlighted(true);
		break;
	case SOUTH_KEY:
	case EAST_KEY:
		if (b_index_num != -1)
			button_index[b_index_num]->set_highlighted(false);

		if (b_index_num == last_index)
			b_index_num = 0;
		else
			b_index_num += 1;
		button_index[b_index_num]->set_highlighted(true);
		break;
	case DO_ACTION_KEY:
		if (b_index_num != -1) return button_index[b_index_num]->Activate_button();
		break;
	case CANCEL_ACTION_KEY:
		return close_dialog();
	default:
		keybinder->handle_always_available_keys(a);
		break;
	}
	return GUI_YUM;
}

const char *get_selected_game_config_string(int selected_index) {
	const char *config_strings[] = {"menuselect", "ultima6", "savage", "martian" };

	if (selected_index < 0 || selected_index > 3) {
		return config_strings[1];
	}

	return config_strings[selected_index];
}


const char *get_converse_gump_config_string(int selected_index) {
	const char *config_strings[] = {"default", "u7style", "wou" };

	if (selected_index < 0 || selected_index >= 3) {
		return config_strings[0];
	}

	return config_strings[selected_index];
}

GUI_status GameplayDialog::callback(uint16 msg, GUI_CallBack *caller, void *data) {
	if (caller == cancel_button) {
		return close_dialog();
	} else if (caller == save_button) {
		Game *game  = Game::get_game();
		Configuration *config = game->get_config();
		Std::string key = config_get_game_key(config);

		game->get_party()->set_formation(formation_button->GetSelection());
		config->set("config/general/party_formation", formation_button->GetSelection() ? "yes" : "no");
		if (game->get_game_type() == NUVIE_GAME_U6) {
			game->get_script()->call_set_g_show_stealing(stealing_button->GetSelection());
			config->set("config/ultima6/show_stealing", stealing_button->GetSelection() ? "yes" : "no");
		}
		if (!Game::get_game()->is_new_style()) {
			game->set_using_text_gumps(text_gump_button->GetSelection());
			config->set("config/general/use_text_gumps", text_gump_button->GetSelection() ? "yes" : "no");
			ConverseGumpType converse_gump_type = static_cast<ConverseGumpType>(converse_gump_button->GetSelection());
			if (converse_gump_type != old_converse_gump_type) {
				config->set("config/general/converse_gump", get_converse_gump_config_string(converse_gump_type));
				game->set_converse_gump_type(converse_gump_type);
			}
		}
		if (converse_solid_bg_button) {
			if (game->get_converse_gump())
				game->get_converse_gump()->set_solid_bg(converse_solid_bg_button->GetSelection());
			config->set(key + "/converse_solid_bg", converse_solid_bg_button->GetSelection() ? "yes" : "no");
		}
		config->set("config/loadgame", get_selected_game_config_string(startup_game_button->GetSelection()));
		config->set(key + "/skip_intro", skip_intro_button->GetSelection() ? "yes" : "no"); // need restart
		config->set("config/general/show_console", show_console_button->GetSelection() ? "yes" : "no"); // need restart
		config->set("config/general/enable_cursors", cursor_button->GetSelection() ? "yes" : "no"); // need restart

		config->write();
		close_dialog();
		return GUI_YUM;
	}

	return GUI_PASS;
}

} // End of namespace Nuvie
} // End of namespace Ultima