-- Copyright (c) 2024 - Ognjen 'xolatile' Milan Robovic
--
-- GNU General Public Licence (version 3 or later)

pragma ada_2012;

with core, ui, effect, lore, biome, attribute, skill, resource, faction, deity, material, magic, equipment, unit, construction, chad, world;

use type core.cursor_code;
use type core.signal_code;
use type core.point;

procedure main is

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	type view is (
		map_preview_panel,
		status_preview_panel,
		text_box_panel,
		fullscreen
	);

                                             ------------------------------------------------------------------------------------------

	procedure swap_map_preview_panel;
	procedure swap_status_preview_panel;
	procedure swap_text_box_panel;
	procedure swap_fullscreen;

                                             ------------------------------------------------------------------------------------------

	signal_list : constant array (core.signal_code) of core.pointer := (
		core.signal_up          => world.player_up'access,
		core.signal_down        => world.player_down'access,
		core.signal_left        => world.player_left'access,
		core.signal_right       => world.player_right'access,
		core.signal_v           => ui.iterate_style'access,
		core.signal_kp_add      => core.zoom_in'access,
		core.signal_kp_subtract => core.zoom_out'access,
		core.signal_f1          => world.reveal_map'access,
		core.signal_f2          => world.restore_points'access,
		core.signal_f3          => world.increase_attributes'access,
		core.signal_f4          => world.increase_resources'access,
		others                  => core.idle_skip'access
	);

	view_show : array (view) of access procedure := (
		swap_map_preview_panel'access,
		swap_status_preview_panel'access,
		swap_text_box_panel'access,
		swap_fullscreen'access
	);

	view_icon : array (view, boolean) of core.sprite := (others => (others => (others => 0)));
	view_list : array (view)          of boolean     := (fullscreen => false, others => true);

	view_text : constant array (view) of access string := (
		new string'("Toggle map preview panel."),
		new string'("Toggle status preview panel."),
		new string'("Toggle text box panel."),
		new string'("Toggle fullscreen or windowed mode.")
	);

	game_title   :                              core.sprite;
	game_preview : array (biome.enumeration) of core.sprite;

	switch : natural           := 0;
	choose : biome.enumeration := biome.grass;

	--~view_source_code : natural := 17;

	--~source_code : constant array (0 .. 22) of access string := (
		--~new string'(core.folder & "/source/ai.adb"),
		--~new string'(core.folder & "/source/ai.ads"),
		--~new string'(core.folder & "/source/attribute.ads"),
		--~new string'(core.folder & "/source/chad.ads"),
		--~new string'(core.folder & "/source/construction.ads"),
		--~new string'(core.folder & "/source/core.adb"),
		--~new string'(core.folder & "/source/core.ads"),
		--~new string'(core.folder & "/source/deity.ads"),
		--~new string'(core.folder & "/source/effect.ads"),
		--~new string'(core.folder & "/source/equipment.ads"),
		--~new string'(core.folder & "/source/faction.ads"),
		--~new string'(core.folder & "/source/magic.ads"),
		--~new string'(core.folder & "/source/main.adb"),
		--~new string'(core.folder & "/source/material.ads"),
		--~new string'(core.folder & "/source/might.ads"),
		--~new string'(core.folder & "/source/ray.ads"),
		--~new string'(core.folder & "/source/resource.ads"),
		--~new string'(core.folder & "/source/skill.ads"),
		--~new string'(core.folder & "/source/ui.adb"),
		--~new string'(core.folder & "/source/ui.ads"),
		--~new string'(core.folder & "/source/unit.ads"),
		--~new string'(core.folder & "/source/world.adb"),
		--~new string'(core.folder & "/source/world.ads")
	--~);

	side_panel      : integer := 0;
	preview_width   : integer := 0;
	preview_height  : integer := 0;
	text_box_height : integer := 0;

	player : chad.information := (
		skills => ((skill.archery, 1, 3), (skill.athletics, 1, 3), (skill.tactics, 1, 3), others => <>),
		--
		equipments => (equipment.chest     => equipment.crystal_chestplate,
		               equipment.head      => equipment.crystal_helmet,
		               equipment.hands     => equipment.crystal_gauntlets,
		               equipment.feet      => equipment.crystal_greaves,
		               equipment.main_hand => equipment.crystal_greatsword,
		               equipment.full_body => equipment.cyan_robe,
		               others              => equipment.none),
		--
		others => <>
	);

	opponent : chad.information := (
		index => chad.ognjen,
		x     => 6,
		y     => 6,
		--
		equipments => (equipment.chest     => equipment.steel_chestplate,
		               equipment.head      => equipment.steel_helmet,
		               equipment.hands     => equipment.steel_gauntlets,
		               equipment.feet      => equipment.steel_greaves,
		               equipment.main_hand => equipment.steel_sword,
		               others              => equipment.none),
		--
		others => <>
	);

                                             ------------------------------------------------------------------------------------------

	procedure swap_map_preview_panel    is begin view_list (map_preview_panel)    := not view_list (map_preview_panel);    end swap_map_preview_panel;
	procedure swap_status_preview_panel is begin view_list (status_preview_panel) := not view_list (status_preview_panel); end swap_status_preview_panel;
	procedure swap_text_box_panel       is begin view_list (text_box_panel)       := not view_list (text_box_panel);       end swap_text_box_panel;
	procedure swap_fullscreen           is begin view_list (fullscreen)           := not view_list (fullscreen);           end swap_fullscreen;

                                             ------------------------------------------------------------------------------------------

	procedure time_information (x, y : in integer) is
		offset : constant integer := 8;
		width  : constant integer := side_panel - 2 * core.icon;
		height : constant integer := 3 * core.icon + 2 * offset;
		more   : constant natural := 10;
	begin
		ui.draw_frame (x, y, width, height);
		--
		ui.draw_text (lore.day_name   (7).all, x + offset, y + 0 * core.icon + offset, width - 2 * offset - 64, core.icon, more, 0);
		ui.draw_text (lore.week_name  (6).all, x + offset, y + 1 * core.icon + offset, width - 2 * offset - 64, core.icon, more, 0);
		ui.draw_text (lore.month_name (2).all, x + offset, y + 2 * core.icon + offset, width - 2 * offset - 64, core.icon, more, 0);
		--
		ui.draw_end_turn_button (x + width - offset - 64, y + offset + core.icon / 2);
	end time_information;

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

begin

	core.dash;
	core.echo (core.comment, "Copyright (C) 2024 -- Ognjen 'xolatile' Milan Robovic");
	core.echo (core.comment, "Version -- 1.0.0");
	core.echo (core.comment, "License -- GNU/GPLv3+");
	core.echo (core.comment, "Xorana is free software, you can redistribute it and modify it under the terms of the GNU General Public License by Free Software Foundation.");
	core.dash;

	core.initialize;

	ui.active := ui.main;

	ui.configure;

	--~core.play (core.import_song (core.c_string (core.folder & "/song/main_menu.ogg")).index);

	world.configure;
	--~ai.configure;

	core.dash;
	core.echo (core.success, "Successfully initialized game data, entering main gameplay loop.");
	core.dash;

	for index in view loop
		view_icon (index, false) := core.import_sprite (core.folder & "/icon/engine/" & core.lowercase (view'image (index)) & "_off.png", 1, 1);
		view_icon (index, true)  := core.import_sprite (core.folder & "/icon/engine/" & core.lowercase (view'image (index)) & "_on.png",  1, 1);
	end loop;

	game_title := core.import_sprite (core.folder & "/ui/game_title.png", 1, 1);

	for index in biome.enumeration loop
		game_preview (index) := core.import_sprite (core.folder & "/ui/preview/" & core.lowercase (index'image) & "land.png", 1, 1);
	end loop;

                                             ------------------------------------------------------------------------------------------

	introduction_loop: loop
		core.synchronize;
		--
		exit when core.signal_mode = core.signal_space or core.cursor_mode = core.cursor_right;
		--
		case core.signal_mode is
			when core.signal_none  => null;
			when core.signal_space => null;
			when others            => switch := (switch + 1) mod biome.count;
			                          choose := biome.enumeration'val (switch);
		end case;
		--
		core.draw (game_preview (choose), core.center_x (game_preview (choose).width * 2), core.center_y (game_preview (choose).height * 2), factor => 2);
		core.draw (game_title,            core.center_x (game_title.width            * 2), core.center_y (game_title.height            * 2), factor => 2);
		--
		ui.write ("[-- Press Spacebar or RMB to continue]", 0, core.center_y (24), (102, 102, 102, 255));
	end loop introduction_loop;

	core.cursor_mode := core.cursor_none;

	--~main_menu_loop: loop
		--~core.synchronize;
		--~--
		--~exit when core.signal_mode = core.signal_space or core.cursor_mode = core.cursor_right;
		--~--
		--~declare source_code_data : core.string_box_data;
		--~begin
			--~core.import_text (source_code_data, source_code (view_source_code).all);
			--~--
			--~if core.cursor_mode = core.cursor_left then
				--~view_source_code := (view_source_code + 1) mod 23;
				--~core.cursor_mode := core.cursor_none;
				--~core.wheel := 0.0;
			--~end if;
			--~--
			--~ui.write_ada_code (source_code_data, 0, integer (core.wheel) * 30);
		--~end;
	--~end loop main_menu_loop;

	--~core.cursor_mode := core.cursor_none;

	world.make (biome.rough, 640, 480, 480, 240, 60, 600, 600, 8);

	world.insert_chad (player);
	world.insert_chad (opponent);

	--~world.load ("heyo");

	ui.active := ui.style'val (faction.enumeration'pos (chad.description (player.index).kind) + 1);

	gameplay_loop: loop
		core.synchronize;
		--
		exit when core.engine_active = false;
		--
		if not view_list (status_preview_panel) then
			side_panel := 0;
		else
			side_panel := 480;
		end if;
		--
		preview_width   := core.window_width  - side_panel;
		preview_height  := core.window_height - text_box_height;
		text_box_height := 32;
		--
		world.draw;
		--
		if view_list (map_preview_panel) then
			ui.draw_menu (0, 0, preview_width, preview_height);
		end if;
		--
		if view_list (status_preview_panel) then
			ui.draw_tiny_menu (preview_width, 0, side_panel, preview_height);
			--
			world.view_chad_information (world.map.chads (1), preview_width + core.icon, core.icon, side_panel - 2 * core.icon);
			--
			ui.draw_console_box (x      => core.window_width - core.icon - (side_panel - 2 * core.icon),
			                     y      => core.window_height - core.icon - text_box_height - 106,
			                     width  => side_panel - 2 * core.icon,
			                     height => 106);
		end if;
		--
		if view_list (text_box_panel) then
			ui.draw_help_box (0, core.window_height - text_box_height, core.window_width - core.icon * (view'pos (view'last) + 1), text_box_height);
		--
			ui.write (core.framerate'image, core.window_width - core.icon * (view'pos (view'last) + 1) - 64, core.window_height - 27);
		end if;
		--
		for index in view loop
			ui.draw_icon (data   => view_icon (index, view_list (index)),
			              text   => view_text (index).all,
			              x      => core.window_width - core.icon * (view'pos (view'last) + 1) + core.icon * view'pos (index),
			              y      => core.window_height - core.icon,
			              action => view_show (index));
		end loop;
		--
		for index in resource.enumeration loop
			ui.draw_icon (resource.icon (index), resource.description (index).text.all,
			              (preview_width - 5 * core.icon * resource.count) / 2 + (5 * core.icon) * resource.enumeration'pos (index), core.base);
			ui.draw_text (world.map.chads (1).resources (index).value'image & " /" & world.map.chads (1).resources (index).limit'image,
			              (preview_width - 5 * core.icon * resource.count) / 2 + (5 * core.icon) * resource.enumeration'pos (index) + core.icon, core.base, 4 * core.icon, core.icon, 10);
		end loop;
		--
		--~declare move_x : integer := (preview_width - core.icon * material.count) / 2;
		--~begin
			--~for index in material.enumeration loop
				--~if world.map.chads (1).materials (index).value > 0 then
					--~ui.draw_icon (material.icon (index), material.description (index).name.all, move_x, core.base + core.icon);
					--~ui.draw_text (world.map.chads (1).materials (index).value'image, move_x, core.base + 2 * core.icon, core.icon, core.icon, 10);
					--~--
					--~move_x := move_x + core.icon;
				--~end if;
			--~end loop;
		--~end;
		--
		signal_list (core.signal_mode).all;
		--
		core.camera.x := world.map.chads (1).x;
		core.camera.y := world.map.chads (1).y;
		--
		world.restore_points;
		ui.synchronize;
	end loop gameplay_loop;

	world.save ("heyo");

	--~world.mapshot (core.folder & "/mapshot.png");

                                             ------------------------------------------------------------------------------------------

	core.deinitialize;

	core.dash;

------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

end main;