#include <stdio.h>
#include <stdlib.h>
#include <gccore.h>
#include "ui.h"
#include <fat.h>

static void *xfb = NULL;
static GXRModeObj *rmode = NULL;

//---------------------------------------------------------------------------------
int main(int argc, char **argv) {
//---------------------------------------------------------------------------------

	fatInitDefault();
	// Initialise the video system
	VIDEO_Init();

	// This function initialises the attached controllers
	Ctrl_Init();
	// Obtain the preferred video mode from the system
	// This will correspond to the settings in the Wii menu
	rmode = VIDEO_GetPreferredMode(NULL);

	// Allocate memory for the display in the uncached region
	xfb = MEM_K0_TO_K1(SYS_AllocateFramebuffer(rmode));

	// Initialise the console, required for printf
	console_init(xfb,20,20,rmode->fbWidth,rmode->xfbHeight,rmode->fbWidth*VI_DISPLAY_PIX_SZ);

	// Set up the video registers with the chosen mode
	VIDEO_Configure(rmode);

	// Tell the video hardware where our display memory is
	VIDEO_SetNextFramebuffer(xfb);

	// Make the display visible
	VIDEO_SetBlack(FALSE);

	// Flush the video register changes to the hardware
	VIDEO_Flush();

	// Wait for Video setup to complete
	VIDEO_WaitVSync();
	if(rmode->viTVMode&VI_NON_INTERLACE) VIDEO_WaitVSync();


	// The console understands VT terminal escape codes
	// This positions the cursor on row 2, column 0
	// we can use variables for this with format codes too
	// e.g. printf ("\x1b[%d;%dH", row, column );
	printf("\x1b[2;0H");


	UiInit();
	
	while(1) {

		// Call WPAD_ScanPads each loop, this reads the latest controller states
		Ctrl_ScanPads();

		// WPAD_ButtonsDown tells us which buttons were pressed in this loop
		// this is a "one shot" state which will not fire again until the button has been released
		u32 pressed = Ctrl_ButtonsDown(0);

		// We return to the launcher application via exit
		if ( pressed & PAD_BUTTON_START ) exit(0);

		if(UiUpdate(pressed))
			UiRender();
		// Wait for the next frame
		VIDEO_WaitVSync();
	}

	return 0;
}