package com.pxl.pxlbeamapp.util;

import android.content.Context;
import android.content.res.Configuration;
import android.support.v7.app.AlertDialog;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.view.WindowManager;
import android.widget.Button;
import android.widget.TextView;

import com.pxl.pxlbeamapp.R;
import com.pxl.pxlbeamapp.util.view.ViewUtils;

public class IOSAlertDialog {
    private static final int THREE_RATIO = 3;
    private static final int TWO_RATIO = 2;

    private AlertDialog dialog;

    private String title;
    private String message;
    private String leftButtonText;
    private String rightButtonText;
    private Runnable leftButtonListener;
    private Runnable rightButtonListener;
    private boolean isCancelable;


    public static Builder newBuilder(Context context) {
        return new IOSAlertDialog().new Builder(context);
    }

    public void show() {
        if (dialog != null && dialog.getWindow() != null) {
            int customDialogWidth;
            if (dialog.getContext().getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) {
                customDialogWidth = (ViewUtils.getScreenWidth(dialog.getWindow()) / THREE_RATIO) * TWO_RATIO;
            } else {
                customDialogWidth = ViewGroup.LayoutParams.WRAP_CONTENT;
            }
            dialog.show();
            dialog.getWindow().setLayout(customDialogWidth, WindowManager.LayoutParams.WRAP_CONTENT);
        }
    }

    @SuppressWarnings("unused")
    public class Builder {
        private Context context;

        private Builder(Context context) {
            //clear fields
            IOSAlertDialog.this.isCancelable = true;
            IOSAlertDialog.this.title = null;
            IOSAlertDialog.this.message = null;
            IOSAlertDialog.this.leftButtonText = null;
            IOSAlertDialog.this.rightButtonText = null;
            IOSAlertDialog.this.leftButtonListener = null;
            IOSAlertDialog.this.rightButtonListener = null;
            IOSAlertDialog.this.dialog = null;
            this.context = context;
        }

        public Builder addTitle(String title) {
            IOSAlertDialog.this.title = title;
            return this;
        }

        public Builder setCancelable(boolean isCancelable) {
            IOSAlertDialog.this.isCancelable = isCancelable;
            return this;
        }

        public Builder addMessage(String message) {
            IOSAlertDialog.this.message = message;
            return this;
        }

        public Builder addLeftButtonText(String leftButtonText) {
            IOSAlertDialog.this.leftButtonText = leftButtonText;
            return this;
        }

        public Builder addRightButtonText(String rightButtonText) {
            IOSAlertDialog.this.rightButtonText = rightButtonText;
            return this;
        }

        public Builder addLeftButtonListener(Runnable leftListener) {
            IOSAlertDialog.this.leftButtonListener = leftListener;
            return this;
        }

        public Builder addRightButtonListener(Runnable rightListener) {
            IOSAlertDialog.this.rightButtonListener = rightListener;
            return this;
        }

        public IOSAlertDialog build() {
            AlertDialog.Builder builder = new AlertDialog.Builder(context, R.style.CustomAlertDialog);
            //Get alert view
            View view = LayoutInflater.from(context).inflate(R.layout.alert_dialog, null);

            //Get child views
            Button leftBtn = view.findViewById(R.id.btn_left);
            Button rightBtn = view.findViewById(R.id.btn_right);
            View delimiterVertical = view.findViewById(R.id.delimiter_vertical);
            TextView tvTitle = view.findViewById(R.id.tv_title);
            TextView tvMessage = view.findViewById(R.id.tv_message);

            //Initialize child views if required
            tvTitle.setText(IOSAlertDialog.this.title == null ? "" : IOSAlertDialog.this.title);
            tvMessage.setText(IOSAlertDialog.this.message == null ? "" : IOSAlertDialog.this.message);
            leftBtn.setText(IOSAlertDialog.this.leftButtonText == null ? "" : IOSAlertDialog.this.leftButtonText);
            rightBtn.setText(IOSAlertDialog.this.rightButtonText == null ? "" : IOSAlertDialog.this.rightButtonText);
            leftBtn.setOnClickListener(v -> processClick(leftButtonListener));
            rightBtn.setOnClickListener(v -> processClick(rightButtonListener));

            //adopt ui for two buttons style or one button style
            boolean isOneButtonStyle = IOSAlertDialog.this.rightButtonText == null && IOSAlertDialog.this.rightButtonListener == null;
            int visibility = isOneButtonStyle ? View.GONE : View.VISIBLE;
            delimiterVertical.setVisibility(visibility);
            rightBtn.setVisibility(visibility);

            builder.setView(view);
            builder.setCancelable(IOSAlertDialog.this.isCancelable);

            //rebuild
            dialog = builder.create();

            return IOSAlertDialog.this;
        }

        private void processClick(Runnable runnable) {
            if (dialog != null && dialog.isShowing()) {
                dialog.dismiss();
            } else {
                Log.e(IOSAlertDialog.class.getSimpleName(), "Dialog is null or was already dismissed)");
            }
            if (runnable != null) {
                runnable.run();
            }
        }
    }
}