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

with core, ui, effect, attribute, faction, unit;

package body unit is

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	view_width  : constant integer := 48;
	view_height : constant integer := 64;

	sprite      : array (codex) of core.sprite;
	icon_sprite : array (codex) of core.sprite;
	view_sprite : array (codex) of core.sprite;

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	procedure configure is
	begin
		core.echo (core.comment, "Configuring unit components...");
		--
		for index in codex
		loop
			declare
				folder : constant string := core.lowercase (faction.codex'image (trait (index).kind));
				file   : constant string := core.lowercase (codex'image (index));
			begin
				sprite      (index) := core.import_sprite ("./sprite/unit/" & folder & "/" & file & ".png", 4, 6);
				icon_sprite (index) := core.import_sprite ("./sprite/unit/icon/"           & file & ".png", 1, 1);
				view_sprite (index) := core.import_sprite ("./sprite/unit/view/"           & file & ".png", 1, 1);
			end;
		end loop;
	end configure;

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	procedure draw (index : in codex; state : in animation; x, y : in integer) is
	begin
		core.move (sprite (index), x, y, 6, animation'pos (state));
	end draw;

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	procedure icon (index : in codex; x, y : in integer) is
	begin
		core.draw        (icon_sprite (index), x + 2, y + 2);
		ui.draw_overicon (trait (index).text, x, y);
	end icon;

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

	procedure view (index : in codex; x, y : in integer) is
		offset : constant integer := 4;
	begin
		core.draw         (view_sprite (index), x + offset, y + offset);
		ui.draw_icon_menu (trait (index).text, x, y, view_width + 2 * offset, view_height + 2 * offset);
	end view;

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	procedure menu (x, y : in integer; center : in boolean) is
		offset : constant integer := 16;
		width  : constant integer := 168 * faction.count + 2 * offset;
		height : constant integer :=  14 * core.icon     + 2 * offset;
		move_x : constant integer := (if center then (core.window_width  - width)  / 2 else x);
		move_y : constant integer := (if center then (core.window_height - height) / 2 else y);
		move   :          integer := 0;
	begin
		ui.draw_tiny_menu (move_x, move_y, width, height, true);
		ui.draw_title_bar (move_x, move_y, width, "Units");
		--
		for index in codex
		loop
			move := faction.codex'pos (trait (index).kind) * 168;
			--
			icon     (index,              move_x + offset + move,             move_y + offset + (codex'pos (index) mod 14) * core.icon);
			ui.write (trait (index).name, move_x + offset + move + core.icon, move_y + offset + (codex'pos (index) mod 14) * core.icon);
		end loop;
	end menu;

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	procedure stat (index : in codex; x, y : in integer; center : in boolean) is
		offset : constant integer := 16;
		width  : constant integer := 10 + offset + 6 * (sprite (index).width + 8);
		height : constant integer := attribute.count * core.icon + 2 * offset + 10 + sprite (index).height;
		move_x : constant integer := (if center then (core.window_width  - width)  / 2 else x);
		move_y : constant integer := (if center then (core.window_height - height) / 2 else y);
		move   :          integer := 0;
	begin
		ui.draw_tiny_menu (move_x, move_y, width, height, true);
		ui.draw_title_bar (move_x, move_y, width, trait (index).name);
		--
		view (index, move_x + offset, move_y + offset);
		--
		for data in attribute.codex
		loop
			move := attribute.codex'pos (data) * core.icon;
			--
			ui.draw_icon   (attribute.trait (data).text, move_x + view_width + 12 + offset, move_y + offset + move);
			attribute.draw (data, move_x + view_width + 12 + offset, move_y + offset + move);
			--
			ui.write (trait (index).attributes (data)'image, move_x + view_width + 12 + offset + core.icon, move_y + offset + move);
		end loop;
		--
		for animate in animation
		loop
			draw              (index, animate, move_x + offset + animation'pos (animate) * (sprite (index).width + 8), move_y + offset + 8 + core.icon * attribute.count);
			ui.draw_icon_menu (trait (index).text, move_x + offset + animation'pos (animate) * (sprite (index).width + 8), move_y + offset + 8 + core.icon * attribute.count, sprite (index).width, sprite (index).height);
		end loop;
	end stat;

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end unit;