/**
 * Implements a dictionary's functionality.
 */

#include <stdbool.h>
#include <stdio.h>
#include "dictionary.h"
#include <ctype.h>
#include <stdlib.h>
const int CASE = 'a';

typedef struct node{
    bool is_word ;
    struct node *children[27];
}node;

node *rootNode;




FILE *inFile = NULL;

/**
 * Returns true if word is in dictionary else false.
 */
bool check(const char *word)
{
    if(rootNode != NULL){
        while(*word != '\0'){
            char wordChar = tolower(*word);
            if(rootNode->children[wordChar - CASE] != NULL){
                rootNode = rootNode->children[wordChar - CASE];
            }
            word++;
        }
        if(rootNode->is_word != true){
            return false;
        }
    }
    return true;
}


// void insertNode(char *word){
//     node *currentNode = rootNode;

//     while(*word != '\0'){

//         if(currentNode->children[*word - CASE] == NULL){
//             currentNode->children[*word - CASE] = malloc(sizeof(node));
//         }
//         currentNode = currentNode->children[*word - CASE];
//         word++;
//     }
//     currentNode->is_word = true;

// }
/**
 * Loads dictionary into memory. Returns true if successful else false.
 */
bool load(const char *dictionary)
{
    if(rootNode == NULL){
        rootNode = malloc(sizeof(node));
    }

    inFile = fopen(dictionary , "r");
    char *word = malloc(sizeof(char));

    if(!inFile){
        printf("Could not find file");
        return false;
    }
    while(fscanf(inFile, "%s", word) != EOF){

    }


    return true;
}

/**
 * Returns number of words in dictionary if loaded else 0 if not yet loaded.
 */
unsigned int size(void)
{
    if(inFile == NULL){
        return 0;
    }
    rewind(inFile);

    char *store = malloc(sizeof(char));
    unsigned int counter = 0;

    if(rootNode == NULL){
        return 0;
    }

    while(fscanf(inFile, "%s", store) != EOF){
        if(check(store)){
            counter++;
        }
    }
    return counter;
}

/**
 * Unloads dictionary from memory. Returns true if successful else false.
 */
bool unload(void)
{
    // TODO
    return false;
}

int main(){


    load("dictionaries/small");
    if(check("zealousness")){
        printf("word found");
    }else{
        printf("Not found");
    }


    printf(" \nnumber of words %d\n", size());


}