// Created by Rose Apollo

#include <stdio.h>
#include <stdbool.h>
#include <string.h>
#include "font.h"

#define SIZE 8

char trueChar = '#';
char falseChar = ' ';

bool verbose = false;

bool isBitTrue(char val, int pos) // check if the bit from val in position pos is a one
{
    return (val) & (1 << pos); // dont touch this caffiene induced wizardry
}

char* getCharFromFont(char input) // get a pointer to the relative char from the font
{
    return &*font8x8[(int)input];
}

void stringToFont(char* input, int width, char output[SIZE][width])
{
    int length = strlen(input);

    for (int i = 0; i < length; i++) // loop through characters
    {
        char* fontChar = getCharFromFont(*input);

        for (int x = 0; x < SIZE; x++) // loop from top to bottom
        {
            for (int y = 0; y < SIZE; y++) // loop from left to right
            {
                output[x][(i * SIZE) + y] = isBitTrue(fontChar[x], y) ? trueChar : falseChar;

                if (verbose)
                {
                    printf("i: %d, x: %d, y: %d, out: %c\n", i, x, y, output[x][(i * SIZE) + y]);
                }
            }
        }

        input++; // increment the character from the input (I <3 POINTERS)
    }
}

int main (int argc, char** argv) // argument layout "'./Big Letter' 'INPUT TEXT' 'OPTIONAL TRUE CHARACTER' 'OPTIONAL FALSE CHARACTER' 'OPTIONAL v FOR VERBOSE"
{
    if (argc < 2) // requires one argument
    {
        printf("not enough arguments provided");
        return -1;
    }

    if (argc >= 3) // if last argument is 'v' enable verbose
    {
        if (argv[argc - 1][0] == 'v')
        {
            verbose = true;

            printf("VERBOSE enabled \n");
        }
    }

    if (argc >= 4) // replace true and false chars if present in arguments
    {
        trueChar = argv[2][0];
        falseChar = argv[3][0];

        if (verbose)
        {
            printf("trueChar: %c\nfalseChar: %c\n", trueChar, falseChar);
        }
    }

    char* inputString = argv[1];

    if (verbose)
    {
        printf("Text: \"%s\"\n\n", inputString);
    }

    int width = SIZE * strlen(inputString); // width of canvas

    if (verbose)
    {
        printf("WIDTH: %d\n", width);
    }

    char final[SIZE][width]; // create canvas

    stringToFont(inputString, width, final); // paint canvas

    if (verbose)
    {
        printf("Generated:\n");
    }

    printf("\n");

    for (int x = 0; x < SIZE; x++) // output canvas
    {
        for (int y = 0; y < width; y++)
        {
            printf("%c", final[x][y]);
        }

        printf("\n");
    }

    return 0;
}