#include "anagram.h"

#include <algorithm>
#include <locale>
#include <iostream>


namespace anagram {


using namespace std;


static inline string normalize(const string &str)
{
    string result = str;

    transform(result.begin(), result.end(),
            result.begin(),
            [](char c){return tolower(c);});

    sort(result.begin(), result.end());

    cout << str << " -> " << result << endl;

    return result;
}

anagram::anagram(const string &_key)
{
    cout << "New test, key=" << _key << endl;
    key = normalize(_key);
}

StringContainer
anagram::matches(const StringContainer &input) const
{
    StringContainer result(input.size());

    cout << "Input: {";
    for (auto s : input)
        cout << s << " ";
    cout << "}" << endl;

    auto iter = copy_if(input.cbegin(), input.cend(),
            result.begin(),
            [=](const string &s){return key == normalize(s);});

    cout << "Output: {";
    for (auto s : result)
        cout << s << " ";
    cout << "}" << endl;

    result.resize(distance(result.begin(), iter));

    return result;
}

}