#include "stlio.h"

static u8 COLOR_FG = Green;
static u8 COLOR_BG = White;

#define write_char(c) write_cell_fb(c, COLOR_FG, COLOR_BG)

// We are assuming null-terminated strings here
u32 strlen(char* buffer) {
	char* c;
	for(c = buffer; *c != '\0'; c++); // LULW
	return (u32)(c - buffer);
}

u32 write(const char* buffer, const u32 size) {
	u32 i;
	for(i = 0; i < size; i++) {
		// cheesy but whatever
		if(buffer[i] == '\n') {
			frame_buffer_newline();
		}
		else {
			write_char(buffer[i]);
		}
	}
	return i;
}

u32 read(const u32 n) {
	// read n bytes from keyboard
	return n;
}

char* tohex(u32* data, u32 size) {
	static char ret[19] = {'\0'}; // 8 bytes + \0
	ret[0] = '0'; ret[1] = 'x';
	const char* map = "0123456789abcdef"; // muh 'tism
	switch(size) {
		// (unsigned)char/u8/s8
		case (1): {
			u8 idx;
			u8 val = (u8)*data;
			for(u32 i = 0; i<2; i++ ) {
				idx = val & 0x0f;
				ret[19-i] = map[idx];
				vall >>= 4;
			}
			break;
		}
		// s16/u16
		case (2): {
			for(u32 i = 0; i<4; i++) {
			}
			break;
		}
		// s32/u64
		case (4): {
			break;
		}
		// s64/u64
		case (8): {
			break;
		}
		default: return "Bad-Size";
	}
	return "sadf";
}


void printf(char* fmt) {
	u32 i;
	u32 size = strlen(fmt);
	for(i = 0; i < size;i++) {
		char c = fmt[i];
		switch(c) {
			case '\n': {
				frame_buffer_newline();
				break;
			}
			case '%': {
				/* only do something if the situation calls for it
				 * NOTE: this call might not do anything interesting
				 */
				if((i+1) < size) {
					write_char(c);
					i += 2;
				}
				break;
			}
			default: {
				write_char(c);
			}
		}
	}
}