package de.danoeh.antennapod.dialog;

import android.app.Dialog;
import android.content.Context;
import android.os.Bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.util.Log;
import android.view.View;
import android.view.Window;
import android.view.inputmethod.InputMethodManager;
import android.widget.*;
import de.danoeh.antennapod.core.BuildConfig;
import de.danoeh.antennapod.R;

import java.util.concurrent.TimeUnit;

public abstract class TimeDialog extends Dialog {
    private static final String TAG = "TimeDialog";

    private static final int DEFAULT_SPINNER_POSITION = 1;

    private Context context;

    private EditText etxtTime;
    private Spinner spTimeUnit;
    private Button butConfirm;
    private Button butCancel;

    private TimeUnit[] units = {TimeUnit.SECONDS, TimeUnit.MINUTES,
            TimeUnit.HOURS};

    public TimeDialog(Context context, int titleTextId, int leftButtonTextId) {
        super(context);
        this.context = context;
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        requestWindowFeature(Window.FEATURE_NO_TITLE);
        String[] spinnerContent = new String[]{context.getString(R.string.time_unit_seconds),
                context.getString(R.string.time_unit_minutes),
                context.getString(R.string.time_unit_hours)};

        setContentView(R.layout.time_dialog);
        etxtTime = (EditText) findViewById(R.id.etxtTime);
        spTimeUnit = (Spinner) findViewById(R.id.spTimeUnit);
        butConfirm = (Button) findViewById(R.id.butConfirm);
        butCancel = (Button) findViewById(R.id.butCancel);

        butConfirm.setText(R.string.set_sleeptimer_label);
        butCancel.setText(R.string.cancel_label);
        setTitle(R.string.set_sleeptimer_label);
        ArrayAdapter<String> spinnerAdapter = new ArrayAdapter<String>(
                this.getContext(), android.R.layout.simple_spinner_item,
                spinnerContent);
        spinnerAdapter
                .setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
        spTimeUnit.setAdapter(spinnerAdapter);
        spTimeUnit.setSelection(DEFAULT_SPINNER_POSITION);
        butCancel.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                dismiss();
            }
        });
        butConfirm.setOnClickListener(new View.OnClickListener() {

            @Override
            public void onClick(View v) {
                try {
                    long input = readTimeMillis();
                    onTimeEntered(input);
                    dismiss();
                } catch (NumberFormatException e) {
                    e.printStackTrace();
                    Toast toast = Toast.makeText(context,
                            R.string.time_dialog_invalid_input,
                            Toast.LENGTH_LONG);
                    toast.show();
                }
            }
        });
        etxtTime.addTextChangedListener(new TextWatcher() {

            @Override
            public void afterTextChanged(Editable s) {
                checkInputLength(s.length());
            }

            @Override
            public void beforeTextChanged(CharSequence s, int start, int count,
                                          int after) {

            }

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

            }
        });
        checkInputLength(etxtTime.getText().length());
        etxtTime.postDelayed(new Runnable() {
            @Override
            public void run() {
                InputMethodManager imm = (InputMethodManager) context.getSystemService(Context.INPUT_METHOD_SERVICE);
                imm.showSoftInput(etxtTime, InputMethodManager.SHOW_IMPLICIT);
            }
        }, 100);



    }

    private void checkInputLength(int length) {
        if (length > 0) {
            if (BuildConfig.DEBUG)
                Log.d(TAG, "Length is larger than 0, enabling confirm button");
            butConfirm.setEnabled(true);
        } else {
            if (BuildConfig.DEBUG)
                Log.d(TAG, "Length is smaller than 0, disabling confirm button");
            butConfirm.setEnabled(false);
        }
    }

    public abstract void onTimeEntered(long millis);

    private long readTimeMillis() {
        TimeUnit selectedUnit = units[spTimeUnit.getSelectedItemPosition()];
        long value = Long.valueOf(etxtTime.getText().toString());
        return selectedUnit.toMillis(value);
    }

}