#include "Word.h"
#include<iostream>
#include<string>
#include<fstream>
#include<ctype.h>
using namespace std;

bool Word::find(std::string & t)
{
    char last = t[t.length() - 1];
    last = tolower(last);
    int first = letterIndex[last - 97];
    int lastNumber = 0;
    if (last != 'z')
        lastNumber = letterIndex[last - 96];
    else
        lastNumber = word.size();
    bool flag = true;
    int length = t.length();
    for (int i = first; i < lastNumber; i++) {
        if (length == word[i].length()) {
            for (int j = 0, k = length - 1; j < length; j++, k--) {
                if (tolower(t[k]) != tolower(word[i][j])) {
                    flag = false;
                    break;
                }
            }
            if (flag) {
                word[i] = "";
                return true;
            }
            flag = true;
        }
    }
    return false;
}
void Word::reaoWord()
{
    ifstream data(file, ios::in);
    if (data.is_open())
    {
        string t;
        int i = 97;
        int j = 0;
        while (!data.eof()) {
            data >> t;
            word.push_back(t);
            if (tolower(t[0]) == i) {
                letterIndex[i - 97]= j;
                i++;
            }
            j++;
        }
    }
    else
        cout << "Error!!" << endl;
}

void Word::findInverseWord()
{
    for (int i = 0; i < word.size(); i++) {
        if (word[i].length() > output.length())
            if (find(word[i])) {
                output = word[i];
                word[i] = "";
                cout << output;
            }
    }
}
void Word::out()
{
    cout << output << endl;
}
Word::Word(std::string _file)
{
    file = _file;
    for (int i = 0; i < 26; i++)
        letterIndex[i] = 0;
    word.clear();
    output = "";
}