#include <stdio.h>
#include <stdlib.h>
#include <string.h>

int main(int argc, char *argv[])
{
    //arguement checker, program exits if an error happens
    switch(argc) {
    case 1:
        printf("DEBUG: No params\n");
        return 10;
        break;
    case 2:
        printf("DEBUG: No source file\n");
        return 11;
        break;
    case 3:
        printf("DEBUG: 3 Args found, executing case 3.\n");
        if (*argv[1] == 'c') //tells program to convert KovCode to SL YAML
            convertToYAML(argv[2], "blank");
        else if (*argv[1] == 'd') //tells program to convert SL YAML to KovCode
            convertToKovCode(argv[2], "blank");
        else {
            printf("Invalid operation mode");
            return 12;
        }
        break;
    case 4:
        printf("DEBUG: 4 Args found, executing case 4.\n");
        if (*argv[1] == 'c') //tells program to convert KovCode to SL YAML
            convertToYAML(argv[2], argv[3]);
        else if (*argv[1] == 'd') //tells program to convert SL YAML to KovCode
            convertToKovCode(argv[2], argv[3]);
        else {
            printf("Invalid operation mode");
            return 12;
        }
        break;



    }
    return 0;
}

int convertToYAML(char source[], char destination[]) {
    char var[50];
    char *buff;
    char cursor;
    char *value;
    char regularMark[] = ":%:"; //variable_name: value
    char array1Mark[] = ":%1:"; //variable_name: - 7777 -7778 -7779 etc
    char array2Mark[] = ":%2:"; //variable_name: [1,2,3,4,5,6]
    int i;
    value = (char *) calloc(1024, sizeof(char)); //needs to be rewritten to wchar_t to allow for UTF encoded texts, this is working fine for now. ONLY ANSI ENCODED TEXT FILES WORK
    //This is probably a shitty way to get enough space to store values for writing, I don't know any other way.
    buff = (char *) calloc(1024, sizeof(char));
    printf("DEBUG: Variables initialized, opening file stream targeting %s", source);
    FILE *fp = fopen(source, "r");
    FILE *of;

    if(strcmp(destination, "blank") == 0) {
    of = fopen("output.txt", "w");
    } else {
    of = fopen(destination, "w");
    }

    cursor = fgetc(fp);
    while (!feof(fp)){
            i = 0;

        while(cursor != '\n') {
            *(buff+i) = cursor;
            cursor = fgetc(fp);
            i++;
        }
        *(buff+i+1) = '\0';


        if (strstr(buff, regularMark) != 0)
            toYAMLKeyPair(&buff, strstr(buff, regularMark), of);
        /*else if(strstr(buff, array1Mark) != 0)
            toYAMLArray1(&buff, strstr(buff, array1Mark), of);
        else if(strstr(buff, array2Mark) != 0)
            toYAMLArray2(&buff, strstr(buff, array2Mark), of);
        else
            return 14;*/
    }
    fclose(fp);
    fclose(of);
}

int toYAMLKeyPair(char *rawLine, char *separatorLoc, FILE *output) {
    int i = 0;
    printf("%c", *rawLine);
    while((rawLine+i) != separatorLoc) {
        printf("%c", *(rawLine+i));
        fprintf(output, "%c", *(rawLine+i));
        i++;
    }

}

/*int toYAMLArray1(){

}

int toYAMLArray2(){

}*/

int convertToKovCode(char *source, char *destination) {

}