package com.codigoparallevar.minicards;

import android.app.Dialog;
import android.content.DialogInterface;
import android.os.AsyncTask;
import android.os.Bundle;
import com.google.android.material.floatingactionbutton.FloatingActionButton;
import androidx.appcompat.app.AlertDialog;
import androidx.appcompat.widget.Toolbar;

import android.text.Editable;
import android.text.TextWatcher;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;

import java.io.File;
import java.io.IOException;
import java.util.List;
import java.util.Vector;

import com.programaker.api.ProgramakerApi;

public class DeckPreviewActivity extends ReloadableAppCompatActivity {

    public static final String INTENT = "com.codigoparallevar.minicards.DECK";
    private ListView listView;
    private CardPreviewArrayAdapter cardArrayAdapter;
    private ProgramakerApi ProgramakerApi = new ProgramakerApi();

    protected void openLoginDialog(View view) {
        AlertDialog.Builder builder = new AlertDialog.Builder(this);

        final View loginDialog = (LayoutInflater.from(this)
                .inflate(R.layout.login_dialog_view, null));

        final EditText loginUsernameText = (EditText) loginDialog.findViewById(R.id.login_username_text);
        final EditText loginPasswordText = (EditText) loginDialog.findViewById(R.id.login_password_text);
        final Button loginButton = (Button) loginDialog.findViewById(R.id.login_dialog_login_button);
        final Button cancelButton = (Button) loginDialog.findViewById(R.id.login_dialog_cancel_button);
        final TextView messageLabel = (TextView) loginDialog.findViewById(R.id.login_message_label);

        builder.setTitle("Login").setView(loginDialog);
        final Dialog dialog = builder.create();
        dialog.show();

        cancelButton.setOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(View v) {
                dialog.cancel();
            }
        });

        final TextWatcher watcher = (new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence s, int start, int count, int after) {}

            @Override
            public void onTextChanged(CharSequence s, int start, int before, int count) {}

            @Override
            public void afterTextChanged(Editable s) {
                if ((messageLabel.getVisibility() != View.VISIBLE) &&
                        (loginUsernameText.getText().length() > 0) &&
                        (loginPasswordText.getText().length() > 0)) {
                    loginButton.setEnabled(true);
                } else {
                    loginButton.setEnabled(false);
                }
            }
        });

        loginButton.setEnabled(false);
        loginUsernameText.addTextChangedListener(watcher);
        loginPasswordText.addTextChangedListener(watcher);

        loginButton.setOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(View v) {
                messageLabel.setVisibility(View.VISIBLE);
                messageLabel.setText(R.string.loading);
                watcher.afterTextChanged(null);
            }
        });
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_deck_preview);
        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);

        FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.create_new_card_fab);
        fab.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                createOpenCardDialog();
            }
        });

        Button loginButton = (Button) findViewById(R.id.login_in_programaker_button);
        loginButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                DeckPreviewActivity.this.openLoginDialog(v);
            }
       });

        listView = (ListView) findViewById(R.id.card_deck_list);


        new AsyncTask<ProgramakerApi, Void, Boolean>() {
            protected Boolean doInBackground(ProgramakerApi... api) {
                return api[0].Check();
            }

            protected void onPostExecute(Boolean result) {
                Log.d("MiniCards",  "check result: " + result);
            }
        }.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR, this.ProgramakerApi);
    }

    @Override
    protected void onResume() {
        super.onResume();

        reload();
    }

    public void reload() {
        cardArrayAdapter = new CardPreviewArrayAdapter(this, listAvailableCards());

        listView.setAdapter(cardArrayAdapter);
    }

    private void createOpenCardDialog() {
        AlertDialog.Builder builder = new AlertDialog.Builder(this);

        final View openCardOptions = (LayoutInflater.from(this)
                .inflate(R.layout.create_new_card_view, null));

        final EditText cardNameEditText = (EditText) openCardOptions.findViewById(R.id.card_name_edit_text);

        builder.setTitle("Create a new card")
                .setView(openCardOptions)
                .setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                    }
                })
                .setPositiveButton("OK", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        CardFile cardfile = new CardFile(CardFile.getDefaultCardStorage(DeckPreviewActivity.this));
                        cardfile.setName(cardNameEditText.getText().toString());
                        cardfile.setBackgroundColor(CardFile.DEFAULT_BACKGROUND_COLOR);

                        try {
                            cardfile.save(DeckPreviewActivity.this);
                        } catch (IOException e) {
                            Log.e("Minicards DeckPreview", "Error creating card "+ e, e);
                            Toast.makeText(DeckPreviewActivity.this,
                                    "Error creating card " + e,
                                    Toast.LENGTH_LONG).show();
                            return;
                        }

                        CardActivity.openCard(DeckPreviewActivity.this, cardfile,
                                CardActivity.DEVELOPER_VISUALIZATION_MODE);
                    }
                });

        Dialog dialog = builder.create();
        dialog.show();
    }

    private PreviewCard[] listAvailableCards() {
        String cardsPath = CardFile.getDefaultCardStorage(this);
        File cardsDir = new File(cardsPath);
        if (!cardsDir.exists()) {
            cardsDir.mkdir();
        }

        File[] cardFiles = cardsDir.listFiles();
        if (cardFiles.length == 0){
            try {
                CardFile.createDefaultCards(cardsDir);
            } catch (IOException e) {
                Log.e("Minicards Deck preview",
                        "IOException when creating default cards", e);
            }
            cardFiles = cardsDir.listFiles();
        }

        List<PreviewCard> cards = new Vector<>(cardFiles.length);
        for (File cardFile : cardFiles) {
            try {
                CardFile card = CardFile.load(cardFile.getAbsolutePath(), new StubPartGrid());
                cards.add(new PreviewCard(card.getName(), card.getBackgroundColor(), card.getPath()));
            } catch (ErrorLoadingCardException e) {
                Log.e("Minicards Deck preview",
                        "Error loading card, [reason=" + e.getReason()
                                + "; path=" + cardFile.getAbsolutePath(),
                        e);
            } catch (IOException e) {
                Log.e("Minicards Deck preview",
                        "IOException loading card, [msg=" + e.getMessage()
                                + "; path=" + cardFile.getAbsolutePath(),
                        e);
            }
        }

        return cards.toArray(new PreviewCard[cards.size()]);
    }
}