package org.ntlab.citrusserver.repositories;

import org.ntlab.citrusserver.entities.Account;
import org.ntlab.citrusserver.entities.Book;
import org.ntlab.citrusserver.entities.Schedule;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Repository;

import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Objects;

@Repository
public class BookManager implements IAccountListener {

    private final HashMap<String, HashMap<Integer, Book>> booksMap = new HashMap<>();
    private final AccountManager accountManager; //仮
    private final List<IBookListener> iBookListeners = new ArrayList<>();

    @Autowired
    public BookManager(AccountManager accountManager)
    {
        this.accountManager = accountManager;
        accountManager.addListener(this);
        createBook("fish","Aさんのダミ本","#B2A9F0", false);//ダミーの本
        createBook("bird","Bさんのダミ本","#C1F8E5", false);//ダミーの本
    }

    //IBookListenerを追加
    public void addListener(IBookListener iBookListener)
    {
        iBookListeners.add(iBookListener);
    }

    //本の一覧を返す
    public HashMap<Integer, Book> getBooks(String accountId)
    {
        return booksMap.get(accountId);
    }

    //本の新規作成
    public Book createBook(String accountId, String title, String color, Boolean publicity)
    {
        if(!booksMap.containsKey(accountId)){
            booksMap.put(accountId, new HashMap<>());
        }
        Account account = accountManager.getAccount(accountId); //アカウントの取得
        int newBookId = account.getNewBookId(); //新たに生成されたIdを取得（作成数もここで加算している）
        String setTitle = title;
        String setColor = color;
        if(Objects.equals(title, "")) setTitle = "無名の本";
        if(Objects.equals(color, "")) setColor = "#000000";
        Book book = new Book(accountId, newBookId, setTitle, publicity, setColor, getDateTime()); //本の初期化
        notifyChangedListener(account, book);//公開設定を通知します
        booksMap.get(accountId).put(newBookId, book); //ブックに追加
        return booksMap.get(accountId).get(newBookId);  //（int->Bookを返すように変更した）
    }

    //本の情報を取得
    public Book getBook(String accountId, Integer bookId)
    {
        return booksMap.get(accountId).get(bookId);
    }

    //本の削除
    public void deleteBook(String accountId, Integer bookId)
    {
        Account account = accountManager.getAccount(accountId);
        Book book = booksMap.get(accountId).get(bookId);
        notifyDeletedListener(account, book);
        booksMap.get(accountId).remove(bookId);
    }

    //（（（　いいねは省略　）））

    //本のタイトルを返す
    public String getTitle(String accountId, Integer bookId)
    {
        if(accountManager.getAccount(accountId) == null) return null; //アカウントが存在しない
        return booksMap.get(accountId).get(bookId).getTitle();
    }

    //本のタイトルを変更
    public void putTitle(String accountId, Integer bookId, String title)
    {
        String setTitle = title;
        if(Objects.equals(title, "")) setTitle = "無名の本";
        booksMap.get(accountId).get(bookId).setTitle(setTitle);
    }

    //本の公開情報を返す
    public Boolean getPublicity(String accountId, Integer bookId)
    {
        if(booksMap.containsKey(accountId)) {
            if(booksMap.get(accountId).containsKey(bookId)) {
                return booksMap.get(accountId).get(bookId).getPublicity();
            }
        }
        return false;
    }

    //公開情報を変更する
    public void putPublicity(String accountId, Integer bookId, Boolean publicity)
    {
        Account account = accountManager.getAccount(accountId);
        Book book = booksMap.get(accountId).get(bookId);
        if(book.getPublicity() == publicity) return;//変更が無ければ終了
        book.setPublicity(publicity);
        notifyChangedListener(account, book);

    }

    public void deleteAllBooks(String accountId)
    {
        booksMap.remove(accountId);
    }

    //（（（　目標・振り返りは省略　）））

    //本の色を変更する
    public void putColor(String accountId, Integer bookId, String color)
    {
            booksMap.get(accountId).get(bookId).setColor(color);
    }

    public void registerFavoriteCount(String accountId, Integer bookId){
        int favoriteCount = booksMap.get(accountId).get(bookId).getFavoritedCount();
        booksMap.get(accountId).get(bookId).setFavoritedCount(favoriteCount + 1);
    }

    public void unregisterFavoriteCount(String accountId, Integer bookId){
        int favoriteCount = booksMap.get(accountId).get(bookId).getFavoritedCount();
        booksMap.get(accountId).get(bookId).setFavoritedCount(favoriteCount - 1);
    }

    public void changeAccountId(String oldAccountId, String newAccountId) {
        if(!booksMap.containsKey(oldAccountId)) {
            return;
        }
        for(Book book : booksMap.get(oldAccountId).values()) {
            book.setAccountId(newAccountId);
        }
        var books =  booksMap.get(oldAccountId);
        booksMap.put(newAccountId, books);
        booksMap.remove(oldAccountId);
    }

    @Override
    public void accountDeleted(Account account) {
        if(!booksMap.containsKey(account.getId())) return;
        for(Book book : booksMap.get(account.getId()).values()){
            notifyDeletedListener(account, book);

        }
        deleteAllBooks(account.getId());
    }

    //---------------------------------------------------------------------------------
    // private
    //---------------------------------------------------------------------------------

    //IBookListenerに通知する
    private void notifyChangedListener(Account account, Book book)
    {
        for(IBookListener iBookListener : iBookListeners)
        {
            iBookListener.bookChanged(account, book);
        }
    }

    private void notifyDeletedListener(Account account, Book book)
    {
        for(IBookListener iBookListener : iBookListeners)
        {
            iBookListener.bookDeleted(account, book);
        }
    }


    //現在時刻の取得
    private String getDateTime()
    {
        LocalDateTime nowDate = LocalDateTime.now();
        DateTimeFormatter dtf1 = DateTimeFormatter.ofPattern("yyyy/MM/dd HH:mm");
        return dtf1.format(nowDate);
    }



}