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


////////////////////////////
FILE *file;
char *filename = "shellconfig";
char *promptArg;
char *pathArg[50];
int pathArgCount = 0;
//////////////////////////

void main() {

    file = fopen(filename, "r");
    checkFile();
    checkFileContents();
    printf("promptArg %s \n", promptArg);
    fclose(file);
}


void checkFile() {
    if (file == NULL) {
        fprintf(stderr, "File %s could not be opened. Please check if it exists\n", filename);
        exit(1);
    }
}

void checkFileContents() {
    char string[80];

    while(!feof(file)) {
        fgets(string, 80, file);
        tokenizeString(string);
    }
}

void tokenizeString(char string[]) {
    char *tokenizedStr;
    int promptOrPath; //0 for Prompt, 1 for Path

    tokenizedStr = strtok(string, " ");
    promptOrPath = checkIfValid(tokenizedStr);
    while (1) {
        tokenizedStr = strtok(NULL, " ");
        if (promptOrPath == 0) {
            createPromptArg(tokenizedStr);
        } else if (promptOrPath == 1) {
            createPathArgs(tokenizedStr);
        }
        if (tokenizedStr == NULL) {
            break;
        }
    }
}

int checkIfValid(char *tokenizedStr) {
    if ((strcmp(tokenizedStr,"PROMPT:") != 0) && (strcmp(tokenizedStr, "PATH:") != 0)) {
        fprintf(stderr, "File %s does not comply with the correct format. Please fix it and try again\n", filename);
        exit(EXIT_FAILURE);
    } else if (strcmp(tokenizedStr,"PROMPT:") == 0) {
        return 0;
    } else if (strcmp(tokenizedStr,"PATH:") == 0) {
        return 1;
    }
}

void createPromptArg(char *tokenizedStr) {
    if(tokenizedStr != NULL) {
        strcpy(promptArg,tokenizedStr);
    }
}

void createPathArgs(char *tokenizedStr) {
    if (tokenizedStr != NULL){
        strcpy(pathArg[pathArgCount],tokenizedStr);
        pathArgCount++;
    }
}