#include <PA9.h>
#include <stdio.h>
#include "GUI_keyboard.h"

#define MAX_CHAR 16 // (including '\0')


/* read only numeric values */
void keyboard_num_read(char* buffer, int size, u8 dot_allowed){
    
    int len = 0;
    char c = 0;
    
    if(size > MAX_CHAR){
        size = MAX_CHAR;
        buffer[size-1] = '\0';
    }
    
    PA_OutputSimpleText(0, 9, 5, "                ");
    PA_OutputSimpleText(0, 9, 5, buffer);
    
    len = strlen(buffer);
    c = PA_CheckKeyboard();
    
    if(!c) return;
    //$ man ascii :)
    else if( ((c >= '0') && (c <= '9') && (len < size-1)) || (dot_allowed && (c == '.')) ){
        buffer[len] = c;
        buffer[len+1] = '\0';
    }
    else if( (c == PA_BACKSPACE) && (len > 0) ){
        buffer[len-1] = '\0';
    }
    
    PA_PlaySimpleSound(2, SFX_click);
    return;
}


/* read any char */
void keyboard_alpha_read(char* buffer, int size){
    
    int len = 0;
    char c = 0;
    
    if(size > MAX_CHAR){
        size = MAX_CHAR;
        buffer[size-1] = '\0';
    }
    
    PA_OutputSimpleText(0, 9, 5, "                ");
    PA_OutputSimpleText(0, 9, 5, buffer);
    
    len = strlen(buffer);
    c = PA_CheckKeyboard();
    
    if(!c) return;
    //$ man ascii :)
    else if( (c >= ' ') && (len < size-1) ){
        buffer[len] = c;
        buffer[len+1] = '\0';
    }
    else if( (c == PA_BACKSPACE) && (len > 0) ){
        buffer[len-1] = '\0';
    }
  
    PA_PlaySimpleSound(2, SFX_click);
    return;
}