#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <netdb.h>
#include <assert.h>

//TOOLS
void remove_line_return(char * new_line, char * line) {
  int i = 0;
  int n = strlen(line);
  while ( (i < n)  && (line[i] != '\n') ) {
    new_line[i] = line[i];
    i++;
  }
  new_line[i] = '\0';
}

void what_is_left_and_right(char* star_url, char* left, char* right){
  char c = star_url[0];
  int i=0;
  int star_indice;
  while (c!='*'){
    left[i] = c;
    i++;
    c = star_url[i];
  }
  star_indice = i;
  while (c!='\0'){
    i++;
    c = star_url[i];
    right[i-star_indice-1] = c;
  }
}

//ADD FUNCTION
void add_to_file(char* newElement, char* fileName){
  FILE* fichier = NULL;
  fichier = fopen(fileName,"a");
  fprintf(fichier,"%s\n",newElement);
  fclose(fichier);
}

//CREATION
void create_files(char* blacklist){
  FILE* fichier = NULL;
  fichier = fopen(blacklist, "r");
  if (fichier != NULL) {
    size_t len = 0;
    char * line = NULL;
    int read = getline(&line, &len, fichier);

    while (read != -1){
      remove_line_return(line, line);
      char * found_star = strstr(line, "*");
      char * found_http = strstr(line, "@@||");
      char * found_pipes = strstr(line, "||");
      char * found_hashtags = strstr(line, "#");
      char * found_arobases = strstr(line, "@@");
      if (found_star &&
          !found_http &&
          !found_pipes &&
          !found_hashtags &&
          !found_arobases) {
        add_to_file(line,"starFile.txt");
      }
      read = getline(&line, &len, fichier);
    }
    free(line);
    fclose(fichier);
  }
  else {
    printf("Impossible to open %s file\n", blacklist);
  }
}

//PARSING
char* search_in_star_file(char* url){
  FILE* fichier = NULL;
  fichier = fopen("starFile.txt", "r");
  if (fichier != NULL) {
    char* left = malloc(strlen(url) * sizeof(char));
    char* right = malloc(strlen(url) * sizeof(char));
    what_is_left_and_right(url,left,right);
    printf("left : %s\n", left);
    printf("right : %s\n", right);
    size_t len = 0;
    char * line = NULL;
    int read = getline(&line, &len, fichier);

    while (read != -1){
      remove_line_return(line, line);
      char* line_left = malloc(strlen(line) * sizeof(char));
      char* line_right = malloc(strlen(line) * sizeof(char));
      what_is_left_and_right(line,line_left,line_right);
      //printf("left line : %s\n", line_left);
      //printf("right line : %s\n", line_right);
      char* found_left = strstr(left,line_left);
      char* found_right = strstr(right,line_right);
      printf("left found: %s\n", found_left);
      printf("right found: %s\n", found_right);
      if (found_left && found_right) {
        free(line_left);
        free(line_right);
        free(left);
        free(right);
        fclose(fichier);
        return line;
      }
      free(line_left);
      free(line_right);
      read = getline(&line, &len, fichier);
    }
    free(line);
    free(left);
    free(right);
    fclose(fichier);
    return "none";
  }
  else {
    return "Impossible to open starFile.txt\n";
  }
}

char* blacklist(char* url){
  return search_in_star_file(url);
}

int main(int argc, char* argv[]){
  //create_files("../Library/easylist.txt");
  //blacklist("");
  char* star_url = "http://&prvtof=*&poru=x";
  printf("res: %s\n", blacklist(star_url));
  //char* res = strstr(star_url,"&poru=");
  //printf("str: %s\n", res);
}