#include "MoveList.h"

MoveList::MoveList() {
    this->head->next = nullptr;
}

MoveList::~MoveList() {
    Node *current = head;
    std::cout << "Destructor: " << std::endl;

    while (current != nullptr) {
        Node *nextNode = current->next;
        std::cout << "   delete on " << current->data.first << " " << current->data.second << std::endl;
        delete current;
        current = nextNode;
    }
}

MoveList &display() {
    Node *currentNode = this->head;

    while (currentNode->next != nullptr) {
        currentNode = currentNode->next;
        std::cout << "[" << currentNode->data.first << " " << currentNode->data.second  << " | " << currentNode->next << ((currentNode->next != nullptr) ? "] ---> " : "] ");
    }
    std::cout << std::endl;

    return *this;
}

MoveList &append(const std::pair<int, int> &data) {
    if(this->head->next == nullptr) {
        Node *node = new Node;
        node->data = data;
        this->head->next = node;
    } else {
        Node *newNode = new Node;

        newNode->data = data;
        newNode->next = nullptr;

        Node *currentNode = this->head;

        while (currentNode->next != nullptr) {
            currentNode = currentNode->next;
        }

        currentNode->next = newNode;
    }

    return *this;
}

MoveList &insert(const std::pair<int, int> &data) {
    Node *newNode = new Node;
    newNode->data = data;
    newNode->next = this->head->next;
    this->head->next = newNode;

    return *this;
}

Node* MoveList::search(const std::pair<int, int> &data) const {
    Node *currentNode = this->head;

    do {
        if (currentNode->data == data) {
            return currentNode;
        }
    } while(currentNode = currentNode->next);

    return nullptr;
}

MoveList &remove(const std::pair<int, int> &data) {
    Node *currentNode = this->head;

    do {
        if (currentNode->next->data == data) {
            Node *temp = currentNode->next;
            currentNode->next = currentNode->next->next;
            delete temp;
            break;
        }
    } while((currentNode = currentNode->next) && (currentNode->next != nullptr));

    return *this;
}

void MoveList::removeTail(const std::pair<int, int> &data) {
    Node *found = search(data);

    if(found != nullptr) {
        found->next = nullptr;
    }
}