#include "memory.h"
#include "plat.h"
#include "rcache.h"
#include "ui.h"
#include "library.h"

UI* ui;
Library* lib;

Font* ffont;
void prog_init(void* memory) {
	Heap* fh;
	unsigned char* bin;
	int bin_size;
	int fhs = 1024 * 1024 * 4;
	Font* font;
	memory_init(memory);
	rc_init();
	fh = galloc(sizeof *fh);
	init_heap(fh, galloc(fhs), fhs);
	bin = load_binary(default_font_location, &bin_size);
	font = new_font(fh, bin, default_font_size);
	ui = stack_alloc(sizeof *ui);
	init_ui(ui, font);
	lib = stack_alloc(sizeof *lib);
	init_library(lib);
	build_library(lib, library_folder);
}

void prog_update(void) {
	Rectangle l, r, lc, list;
	int h, i, c;
	rc_begin();
	ui_begin(ui, &l);
	rc_add_cmd_rect(&l, theme_background_colour);

	r = rectcut_right(&l, l.w / 2);
	h = font_height(ui->font) + theme_padding * 2;
	c = lib->song_count;
	lc.x = 0;
	lc.y = 0;
	lc.w = r.w - theme_padding * 2;
	lc.h = h * c + theme_padding * (c - 1);
	ui_container(
		ui,
		&r,
		&lc,
		&lc
	);
	list = lc;
	list.h = h;
	for (i = 0; i < max_songs; i++) {
		Song* song = &lib->songs[i];
		if (song->file[0]) {
			ui_button(ui, &list, song->name);
			list.y += list.h + theme_padding;
		}
	}
	rc_add_cmd_reset_clip();

	ui_end(ui);
	rc_flush();
}

void prog_deinit(void) {

}