package com.example.citrusclient.views;

import android.content.Intent;
import android.content.res.ColorStateList;
import android.graphics.Color;
import android.os.Bundle;

import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.fragment.app.Fragment;
import androidx.lifecycle.MutableLiveData;
import androidx.lifecycle.Observer;
import androidx.lifecycle.ViewModelProvider;
import androidx.recyclerview.widget.GridLayoutManager;
import androidx.recyclerview.widget.RecyclerView;

import android.text.Editable;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.CompoundButton;
import android.widget.EditText;
import android.widget.Switch;
import android.widget.TextView;

import com.example.citrusclient.Citrus;
import com.example.citrusclient.R;
import com.example.citrusclient.models.Book;
import com.example.citrusclient.rest.AccountsRest;
import com.example.citrusclient.viewmodels.BooksViewModel;
import com.example.citrusclient.viewmodels.FavoritesViewModel;
import com.example.citrusclient.viewmodels.SettingsViewModel;
import com.example.citrusclient.viewmodels.TodosViewModel;
import com.google.android.material.floatingactionbutton.FloatingActionButton;

import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;

/**
 * A simple {@link Fragment} subclass. Use the {@link SettingsFragment#newInstance} factory method
 * to create an instance of this fragment.
 */
public class SettingsFragment extends Fragment {

  // TODO: Rename parameter arguments, choose names that match
  // the fragment initialization parameters, e.g. ARG_ITEM_NUMBER
  private static final String ARG_PARAM1 = "param1";
  private static final String ARG_PARAM2 = "param2";

  // TODO: Rename and change types of parameters
  private String mParam1;
  private String mParam2;

  public SettingsFragment() {
    // Required empty public constructor
  }

  /**
   * Use this factory method to create a new instance of this fragment using the provided
   * parameters.
   *
   * @param param1 Parameter 1.
   * @param param2 Parameter 2.
   * @return A new instance of fragment SettingsFragment.
   */
  // TODO: Rename and change types and number of parameters
  public static SettingsFragment newInstance(String param1, String param2) {
    SettingsFragment fragment = new SettingsFragment();
    Bundle args = new Bundle();
    args.putString(ARG_PARAM1, param1);
    args.putString(ARG_PARAM2, param2);
    fragment.setArguments(args);
    return fragment;
  }

  SettingsViewModel settingsViewModel;
  BooksViewModel booksViewModel;
  FavoritesViewModel favoritesViewModel;

  private Integer strAccountColor; //色
  private int totalamount = 0;

  private List<Integer> bookList = new ArrayList<>();




  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    if (getArguments() != null) {
      mParam1 = getArguments().getString(ARG_PARAM1);
      mParam2 = getArguments().getString(ARG_PARAM2);
    }
    settingsViewModel = new ViewModelProvider(this).get(SettingsViewModel.class);
    booksViewModel = new ViewModelProvider(this).get(BooksViewModel.class);
    favoritesViewModel = new ViewModelProvider(this).get(FavoritesViewModel.class);
  }

  @Override
  public View onCreateView(LayoutInflater inflater, ViewGroup container,
                           Bundle savedInstanceState) {
    // Inflate the layout for this fragment
    return inflater.inflate(R.layout.fragment_settings, container, false);
  }




  @Override
  public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);

    Citrus citrus = (Citrus) (getActivity().getApplication());
    String token = citrus.getToken();
    String accountId = citrus.getAccountId();



    MutableLiveData<String> accountColor = settingsViewModel.getAccountColorLiveData();
    MutableLiveData<Integer> error_changePw_LiveData = settingsViewModel.getError_changePw_LiveData();
    MutableLiveData<Integer> error_changeAccount_LiveData = settingsViewModel.getError_changeAccount_LiveData();
    MutableLiveData<Integer> error_deleteAccount_LiveData = settingsViewModel.getError_deleteAccount_LiveData();
    MutableLiveData<HashMap<Integer, Book>> booksLiveData = booksViewModel.getBookLiveData();
    MutableLiveData<List<String>> favoritedAccountsLiveData= favoritesViewModel.getFavoritedAccountsLiveData();


    //いいね一覧へ変異
    Button FavoriteButton = view.findViewById((R.id.goFavoriteList));
    FavoriteButton.setOnClickListener(v -> {
      ((MainActivity) getActivity()).showFragment(new FavoritesBooksFragment());
    });


    //観察部
    //色
    accountColor.observe(getViewLifecycleOwner(), new Observer<String>() {
      @Override
      public void onChanged(String s) {
        if (s!=null){
          Button iconButton = view.findViewById(R.id.icon);
          strAccountColor = Color.parseColor(s);
          iconButton.setBackgroundTintList(ColorStateList.valueOf(strAccountColor));
        }
      }
    });
    settingsViewModel.loadAccountColor(accountId);
    if(strAccountColor != null) {
      Button iconButton = view.findViewById(R.id.icon);
      iconButton.setBackgroundTintList(ColorStateList.valueOf(strAccountColor));
    }

    //観察部
    //アカウント
    error_changeAccount_LiveData.observe(getViewLifecycleOwner(), new Observer<Integer>() {
      @Override
      public void onChanged(Integer error_changeAccount_LiveData) {
        if (error_changeAccount_LiveData == 200) {
          System.out.println("成功");
          TextView textNotes1 = (TextView) view.findViewById(R.id.textNotes1);
          textNotes1.setText("アカウント名が変更されました");

        } else if (error_changeAccount_LiveData == 404 || error_changeAccount_LiveData == 401) {
          System.out.println("失敗");
          TextView textNotes1 = (TextView) view.findViewById(R.id.textNotes1);
          textNotes1.setText("アカウント名が変更できませんでした");
        }
      }
    });

    //観察部
    //パスワード変更
    error_changePw_LiveData.observe(getViewLifecycleOwner(), new Observer<Integer>() {
      @Override
      public void onChanged(Integer error_changePw_LiveData) {
        if (error_changePw_LiveData == 200) {
          System.out.println("成功");
          TextView textNotes2 = (TextView) view.findViewById(R.id.textNotes2);
          textNotes2.setText("パスワードが変更されました");

        } else if (error_changePw_LiveData == 404) {
          System.out.println("失敗");
          TextView textNotes2 = (TextView) view.findViewById(R.id.textNotes2);
          textNotes2.setText("現在のパスワードが違います");
        }else if (error_changePw_LiveData == 403 || error_changePw_LiveData == 401){
          System.out.println("失敗");
          TextView textNotes2 = (TextView) view.findViewById(R.id.textNotes2);
          textNotes2.setText("パスワードが変更できませんでした");
        }
      }
    });

    //観察部
    //アカウント削除
    error_deleteAccount_LiveData.observe(getViewLifecycleOwner(), new Observer<Integer>() {
      @Override
      public void onChanged(Integer integer) {
        if (integer == 200){
          TextView textNotes3 = (TextView) view.findViewById(R.id.textNotes3);
          textNotes3.setText("アカウントが削除されました");
          //画面遷移処理
          Intent intent = (new Intent(getActivity(), SignUpActivity.class));
          startActivity(intent);
        }else if(integer == 404 || integer == 401){
          TextView textNotes3 = (TextView) view.findViewById(R.id.textNotes3);
          textNotes3.setText("アカウントが削除できませんでした");
        }
      }
    });

    //観察部
    //ユーザ（主）が持つ本一覧
    //List<Integer> bookList = new ArrayList<>();
    List<Integer> point = new ArrayList<>();

    booksLiveData.observe(getViewLifecycleOwner(), new Observer<HashMap<Integer, Book>>() {
      @Override
      public void onChanged(HashMap<Integer, Book> integerBookHashMap) {
        if(integerBookHashMap != null){
          bookList.clear();
          bookList.addAll(integerBookHashMap.keySet());
          //デモ
          loadFavoritesForBooks();
        }else{
          bookList.clear();
          TextView textLikes = (TextView) view.findViewById(R.id.textLikes);
          textLikes.setText(Integer.toString(totalamount));
        }
      }
    });
    booksViewModel.loadBooks(accountId, token);

    //観察部
    //本に対するいいね一覧
    favoritedAccountsLiveData.observe(getViewLifecycleOwner(), new Observer<List<String>>() {
      @Override
      public void onChanged(List<String> strings) {
        if(strings != null){
          point.add(strings.size());
          totalamount = point.stream().mapToInt(Integer::intValue).sum();
          TextView textLikes = (TextView) view.findViewById(R.id.textLikes);
          textLikes.setText(Integer.toString(totalamount));
        }else{
          TextView textLikes = (TextView) view.findViewById(R.id.textLikes);
          textLikes.setText(Integer.toString(totalamount));
        }

      }
    });
    /*
    for(int i=0;i<bookList.size();i++){
      Integer bookId = bookList.get(i);
      favoritesViewModel.loadFavoritedAccounts(accountId,bookId,token);
    }*/




    //



    //ユーザネーム変更
    view.findViewById(R.id.UpdateName).setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View view2) {
        EditText NowPass = (EditText) view.findViewById(R.id.EnterNowPassword); //現在のパスワードを入力する
        Editable NowPassEditable = NowPass.getText();

        EditText NewUsername = (EditText) view.findViewById(R.id.EnterNewUsename); //新しいユーザーネームを入力する
        Editable NewIdEditable = NewUsername.getText();

        TextView textNote1 = (TextView) view.findViewById(R.id.textNotes1); //ユーザネーム変更でパスワードやユーザーネームなどの入力が無かったら入力してと表示する


        if (NowPassEditable.length() == 0) {     //現在のパスワードの入力がなかったら
          System.out.println("現在のパスワードを正しく入力してください");
          textNote1.setText("現在のパスワードを正しく入力してください！");//画面に表示

        } else if (NewIdEditable.length() == 0) {   //新しいユーザーネームの入力が無かったら
          System.out.println("新しいユーザネームを正しく入力してください");
          textNote1.setText("新しいユーザネームを正しく入力してください！"); //画面に表示

        } else {
          System.out.println(NowPass); //確認のため
          System.out.println(NewUsername);

          String nowpass = NowPassEditable.toString().trim();
          String newUsername = NewIdEditable.toString().trim();

          settingsViewModel.changeAccount(accountId, newUsername, nowpass, token);  //SettingsViewModelを呼ぶ
        }
      }
    });


    //パスワード変更
    view.findViewById(R.id.UpdatePass).setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View view2) {
        EditText NowPass = (EditText) view.findViewById(R.id.EnterNowPassword2); //現在のパスワードを入力する
        Editable NowPassEditable = NowPass.getText();

        EditText NewPass = (EditText) view.findViewById(R.id.EnterNewPassword); //新しいパスワードを入力する
        Editable NewPassEditable = NewPass.getText();

        TextView textNote2 = (TextView) view.findViewById(R.id.textNotes2); //パスワード変更で入力が足りないとき


        if (NowPassEditable.length() == 0) {     //現在のパスワードの入力がなかったら
          System.out.println("現在のパスワードを正しく入力してください");
          textNote2.setText("現在のパスワードを正しく入力してください！");//画面に表示

        } else if (NewPassEditable.length() == 0) {   //新しいパスワードの入力が無かったら
          System.out.println("新しいパスワードを正しく入力してください");
          textNote2.setText("新しいパスワードを正しく入力してください！"); //画面に表示

        } else {
          System.out.println(NowPass); //確認のため
          System.out.println(NewPass);

          String nowpass = NowPassEditable.toString().trim();
          String newPassword = NewPassEditable.toString().trim();

          settingsViewModel.changePW(accountId, newPassword, nowpass, token);  //SettingsViewModelを呼ぶ
        }
      }
    });



    //アカウント削除
    view.findViewById(R.id.UpdatePass3).setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View view) {
        EditText enter_nowPassword = (EditText) view.findViewById(R.id.EnterNowPassword3);
        Editable editable_nowPasswrd = enter_nowPassword.getText();


        TextView textNotes3 = (TextView) view.findViewById(R.id.textNotes3);

        if (editable_nowPasswrd.length() == 0){
          textNotes3.setText("現在のパスワードを入力してください");
        }else{
          String nowPassword = editable_nowPasswrd.toString().trim();
          settingsViewModel.deleteId(accountId, token, nowPassword);
        }
      }
    });
    //

    //textLikes.setText();

    //アイコンボタンが押されたら
    view.findViewById(R.id.icon).setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View view) {
        //フラグメント表示
        AccountColorDialogFragment accountColorDialogFragment = new AccountColorDialogFragment(SettingsFragment.this);
        accountColorDialogFragment.show(getActivity().getSupportFragmentManager(), "simple2");

      }
    });
  }

  //accountの色を持ってくる
  public void returnAccountColor(String iconColor) {

    String strAccountColor = iconColor;//SettingsFragmentの変数accountColorに入る

    View view = getView(); // FragmentのView

    Citrus citrus = (Citrus) (getActivity().getApplication());
    String token = citrus.getToken();
    String accountId = citrus.getAccountId();

    if (view != null) {
      settingsViewModel.changeColor(accountId,strAccountColor,token);
    }

  }

  private void loadFavoritesForBooks() {
    Citrus citrus = (Citrus) (getActivity().getApplication());
    String token = citrus.getToken();
    String accountId = citrus.getAccountId();
    for(int i = 0; i < bookList.size(); i++){
      Integer bookId = bookList.get(i);
      favoritesViewModel.loadFavoritedAccounts(accountId, bookId, token);
    }
  }

}