#include "color.h"
#include "panic.h"

bool itoac(int i, enum AnsiiColor *color) {
    if (i < 0 || i > 15) return false;
    *color = i;
    return true;
}

bool itovc(int i, enum VGAColor *color) {
    if (
        (i >= 30 && i <= 37) ||
        (i >= 40 && i <= 47) ||
        (i >= 90 && i <= 97) ||
        (i >= 100 && i <= 107)
    ) {
        *color = i;
        return true;
    }
    return false;
}

enum VGAColor atovc(enum AnsiiColor color) {
    switch(color) {
        case ANSII_FRONT_BLACK:
        case ANSII_FRONT_BLACK_EMPH:
        case ANSII_BACK_BLACK:
        case ANSII_BACK_BLACK_EMPH:
            return VGA_BLACK;
        case ANSII_FRONT_RED:
        case ANSII_FRONT_RED_EMPH:
        case ANSII_BACK_RED:
        case ANSII_BACK_RED_EMPH:
            return VGA_LIGHT_RED;
        case ANSII_FRONT_GREEN:
        case ANSII_FRONT_GREEN_EMPH:
        case ANSII_BACK_GREEN:
        case ANSII_BACK_GREEN_EMPH:
            return VGA_LIGHT_GREEN;
        case ANSII_FRONT_YELLOW:
        case ANSII_FRONT_YELLOW_EMPH:
        case ANSII_BACK_YELLOW:
        case ANSII_BACK_YELLOW_EMPH:
            return VGA_LIGHT_BROWN; 
        case ANSII_FRONT_BLUE:
        case ANSII_FRONT_BLUE_EMPH:
        case ANSII_BACK_BLUE:
        case ANSII_BACK_BLUE_EMPH:
            return VGA_LIGHT_BLUE;
        case ANSII_FRONT_PURPLE:
        case ANSII_FRONT_PURPLE_EMPH:
        case ANSII_BACK_PURPLE:
        case ANSII_BACK_PURPLE_EMPH:
            return VGA_LIGHT_MAGENTA;
        case ANSII_FRONT_CYAN:
        case ANSII_FRONT_CYAN_EMPH:
        case ANSII_BACK_CYAN:
        case ANSII_BACK_CYAN_EMPH:
            return VGA_LIGHT_CYAN;
        case ANSII_FRONT_WHITE:
        case ANSII_FRONT_WHITE_EMPH:
        case ANSII_BACK_WHITE:
        case ANSII_BACK_WHITE_EMPH:
            return VGA_WHITE;
    }
    panic("this should not be reached (make gcc quiet)");
}