package com.xxmassdeveloper.mpchartexample;

import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.graphics.Color;
import android.net.Uri;
import android.os.Bundle;
import androidx.core.content.ContextCompat;
import android.view.Menu;
import android.view.MenuItem;
import android.view.WindowManager;
import android.widget.SeekBar;
import android.widget.SeekBar.OnSeekBarChangeListener;
import android.widget.TextView;

import com.github.mikephil.charting.charts.LineChart;
import com.github.mikephil.charting.components.XAxis;
import com.github.mikephil.charting.components.YAxis;
import com.github.mikephil.charting.data.Entry;
import com.github.mikephil.charting.data.LineData;
import com.github.mikephil.charting.data.LineDataSet;
import com.github.mikephil.charting.formatter.IFillFormatter;
import com.github.mikephil.charting.interfaces.dataprovider.LineDataProvider;
import com.github.mikephil.charting.interfaces.datasets.IDataSet;
import com.github.mikephil.charting.interfaces.datasets.ILineDataSet;
import com.xxmassdeveloper.mpchartexample.notimportant.DemoBase;

import java.util.ArrayList;
import java.util.List;

public class CubicLineChartActivity extends DemoBase implements OnSeekBarChangeListener {

    private LineChart chart;
    private SeekBar seekBarX, seekBarY;
    private TextView tvX, tvY;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN);
        setContentView(R.layout.activity_linechart);

        setTitle("CubicLineChartActivity");

        tvX = findViewById(R.id.tvXMax);
        tvY = findViewById(R.id.tvYMax);

        seekBarX = findViewById(R.id.seekBar1);
        seekBarY = findViewById(R.id.seekBar2);

        chart = findViewById(R.id.chart1);
        chart.setViewPortOffsets(0, 0, 0, 0);
        chart.setBackgroundColor(Color.rgb(104, 241, 175));

        // no description text
        chart.getDescription().setEnabled(false);

        // enable touch gestures
        chart.setTouchEnabled(true);

        // enable scaling and dragging
        chart.setDragEnabled(true);
        chart.setScaleEnabled(true);

        // if disabled, scaling can be done on x- and y-axis separately
        chart.setPinchZoom(false);

        chart.setDrawGridBackground(false);
        chart.setMaxHighlightDistance(300);

        XAxis x = chart.getXAxis();
        x.setEnabled(false);

        YAxis y = chart.getAxisLeft();
        y.setTypeface(tfLight);
        y.setLabelCount(6, false);
        y.setTextColor(Color.WHITE);
        y.setPosition(YAxis.YAxisLabelPosition.INSIDE_CHART);
        y.setDrawGridLines(false);
        y.setAxisLineColor(Color.WHITE);

        chart.getAxisRight().setEnabled(false);

        // add data
        seekBarY.setOnSeekBarChangeListener(this);
        seekBarX.setOnSeekBarChangeListener(this);

        // lower max, as cubic runs significantly slower than linear
        seekBarX.setMax(700);

        seekBarX.setProgress(45);
        seekBarY.setProgress(100);

        chart.getLegend().setEnabled(false);

        chart.animateXY(2000, 2000);

        // don't forget to refresh the drawing
        chart.invalidate();
    }

    private void setData(int count, float range) {

        ArrayList<Entry> values = new ArrayList<>();

        for (int i = 0; i < count; i++) {
            float val = (float) (Math.random() * (range + 1)) + 20;
            values.add(new Entry(i, val));
        }

        LineDataSet set1;

        if (chart.getData() != null &&
                chart.getData().getDataSetCount() > 0) {
            set1 = (LineDataSet) chart.getData().getDataSetByIndex(0);
            set1.setValues(values);
            chart.getData().notifyDataChanged();
            chart.notifyDataSetChanged();
        } else {
            // create a dataset and give it a type
            set1 = new LineDataSet(values, "DataSet 1");

            set1.setMode(LineDataSet.Mode.CUBIC_BEZIER);
            set1.setCubicIntensity(0.2f);
            set1.setDrawFilled(true);
            set1.setDrawCircles(false);
            set1.setLineWidth(1.8f);
            set1.setCircleRadius(4f);
            set1.setCircleColor(Color.WHITE);
            set1.setHighLightColor(Color.rgb(244, 117, 117));
            set1.setColor(Color.WHITE);
            set1.setFillColor(Color.WHITE);
            set1.setFillAlpha(100);
            set1.setDrawHorizontalHighlightIndicator(false);
            set1.setFillFormatter(new IFillFormatter() {
                @Override
                public float getFillLinePosition(ILineDataSet dataSet, LineDataProvider dataProvider) {
                    return chart.getAxisLeft().getAxisMinimum();
                }
            });

            // create a data object with the data sets
            LineData data = new LineData(set1);
            data.setValueTypeface(tfLight);
            data.setValueTextSize(9f);
            data.setDrawValues(false);

            // set data
            chart.setData(data);
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.line, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {

        switch (item.getItemId()) {
            case R.id.viewGithub: {
                Intent i = new Intent(Intent.ACTION_VIEW);
                i.setData(Uri.parse("https://github.com/PhilJay/MPAndroidChart/blob/master/MPChartExample/src/com/xxmassdeveloper/mpchartexample/CubicLineChartActivity.java"));
                startActivity(i);
                break;
            }
            case R.id.actionToggleValues: {
                for (IDataSet set : chart.getData().getDataSets())
                    set.setDrawValues(!set.isDrawValuesEnabled());

                chart.invalidate();
                break;
            }
            case R.id.actionToggleHighlight: {
                if(chart.getData() != null) {
                    chart.getData().setHighlightEnabled(!chart.getData().isHighlightEnabled());
                    chart.invalidate();
                }
                break;
            }
            case R.id.actionToggleFilled: {

                List<ILineDataSet> sets = chart.getData()
                        .getDataSets();

                for (ILineDataSet iSet : sets) {

                    LineDataSet set = (LineDataSet) iSet;

                    if (set.isDrawFilledEnabled())
                        set.setDrawFilled(false);
                    else
                        set.setDrawFilled(true);
                }
                chart.invalidate();
                break;
            }
            case R.id.actionToggleCircles: {
                List<ILineDataSet> sets = chart.getData()
                        .getDataSets();

                for (ILineDataSet iSet : sets) {

                    LineDataSet set = (LineDataSet) iSet;
                    if (set.isDrawCirclesEnabled())
                        set.setDrawCircles(false);
                    else
                        set.setDrawCircles(true);
                }
                chart.invalidate();
                break;
            }
            case R.id.actionToggleCubic: {
                List<ILineDataSet> sets = chart.getData()
                        .getDataSets();

                for (ILineDataSet iSet : sets) {

                    LineDataSet set = (LineDataSet) iSet;
                    set.setMode(set.getMode() == LineDataSet.Mode.CUBIC_BEZIER
                            ? LineDataSet.Mode.LINEAR
                            :  LineDataSet.Mode.CUBIC_BEZIER);
                }
                chart.invalidate();
                break;
            }
            case R.id.actionToggleStepped: {
                List<ILineDataSet> sets = chart.getData()
                        .getDataSets();

                for (ILineDataSet iSet : sets) {

                    LineDataSet set = (LineDataSet) iSet;
                    set.setMode(set.getMode() == LineDataSet.Mode.STEPPED
                            ? LineDataSet.Mode.LINEAR
                            :  LineDataSet.Mode.STEPPED);
                }
                chart.invalidate();
                break;
            }
            case R.id.actionToggleHorizontalCubic: {
                List<ILineDataSet> sets = chart.getData()
                        .getDataSets();

                for (ILineDataSet iSet : sets) {

                    LineDataSet set = (LineDataSet) iSet;
                    set.setMode(set.getMode() == LineDataSet.Mode.HORIZONTAL_BEZIER
                            ? LineDataSet.Mode.LINEAR
                            :  LineDataSet.Mode.HORIZONTAL_BEZIER);
                }
                chart.invalidate();
                break;
            }
            case R.id.actionTogglePinch: {
                if (chart.isPinchZoomEnabled())
                    chart.setPinchZoom(false);
                else
                    chart.setPinchZoom(true);

                chart.invalidate();
                break;
            }
            case R.id.actionToggleAutoScaleMinMax: {
                chart.setAutoScaleMinMaxEnabled(!chart.isAutoScaleMinMaxEnabled());
                chart.notifyDataSetChanged();
                break;
            }
            case R.id.animateX: {
                chart.animateX(2000);
                break;
            }
            case R.id.animateY: {
                chart.animateY(2000);
                break;
            }
            case R.id.animateXY: {
                chart.animateXY(2000, 2000);
                break;
            }
            case R.id.actionSave: {
                if (ContextCompat.checkSelfPermission(this, Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {
                    saveToGallery();
                } else {
                    requestStoragePermission(chart);
                }
                break;
            }
        }
        return true;
    }

    @Override
    public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {

        tvX.setText(String.valueOf(seekBarX.getProgress()));
        tvY.setText(String.valueOf(seekBarY.getProgress()));

        setData(seekBarX.getProgress(), seekBarY.getProgress());

        // redraw
        chart.invalidate();
    }

    @Override
    protected void saveToGallery() {
        saveToGallery(chart, "CubicLineChartActivity");
    }

    @Override
    public void onStartTrackingTouch(SeekBar seekBar) {}

    @Override
    public void onStopTrackingTouch(SeekBar seekBar) {}
}