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/**
 * Copyright 2000-2024 Vaadin Ltd.
 *
 * This program is available under Vaadin Commercial License and Service Terms.
 *
 * See  {@literal }  for the full
 * license.
 */
package com.vaadin.flow.component.charts;

import com.vaadin.flow.component.charts.events.internal.AbstractSeriesEvent;
import com.vaadin.flow.component.charts.events.internal.AxisRescaledEvent;
import com.vaadin.flow.component.charts.events.internal.ConfigurationChangeListener;
import com.vaadin.flow.component.charts.events.internal.DataAddedEvent;
import com.vaadin.flow.component.charts.events.internal.DataRemovedEvent;
import com.vaadin.flow.component.charts.events.internal.DataUpdatedEvent;
import com.vaadin.flow.component.charts.events.internal.ItemSlicedEvent;
import com.vaadin.flow.component.charts.events.internal.SeriesAddedEvent;
import com.vaadin.flow.component.charts.events.internal.SeriesChangedEvent;
import com.vaadin.flow.component.charts.events.internal.SeriesStateEvent;
import com.vaadin.flow.component.charts.model.AbstractConfigurationObject;
import com.vaadin.flow.component.charts.model.AxisDimension;
import com.vaadin.flow.component.charts.util.ChartSerialization;

class ProxyChangeForwarder implements ConfigurationChangeListener {

    private final Chart chart;

    ProxyChangeForwarder(Chart chart) {
        this.chart = chart;
    }

    @Override
    public void dataAdded(DataAddedEvent event) {
        if (event.getItem() != null) {
            chart.getElement().callJsFunction("__callSeriesFunction",
                    "addPoint", getSeriesIndex(event),
                    chart.getJsonFactory()
                            .parse(ChartSerialization.toJSON(event.getItem())),
                    true, event.isShift());
        }
    }

    @Override
    public void dataRemoved(DataRemovedEvent event) {
        chart.getElement().callJsFunction("__callPointFunction", "remove",
                getSeriesIndex(event), event.getIndex());
    }

    @Override
    public void dataUpdated(DataUpdatedEvent event) {
        if (event.getValue() != null) {
            chart.getElement().callJsFunction("__callPointFunction", "update",
                    getSeriesIndex(event), event.getPointIndex(),
                    event.getValue().doubleValue());
        } else {
            chart.getElement().callJsFunction("__callPointFunction", "update",
                    getSeriesIndex(event), event.getPointIndex(),
                    chart.getJsonFactory()
                            .parse(ChartSerialization.toJSON(event.getItem())));
        }
    }

    @Override
    public void seriesStateChanged(SeriesStateEvent event) {
        if (event.isEnabled()) {
            chart.getElement().callJsFunction("__callSeriesFunction", "show",
                    getSeriesIndex(event));
        } else {
            chart.getElement().callJsFunction("__callSeriesFunction", "hide",
                    getSeriesIndex(event));
        }
    }

    @Override
    public void axisRescaled(AxisRescaledEvent event) {
        chart.getElement().callJsFunction("__callAxisFunction", "setExtremes",
                event.getAxis(), event.getAxisIndex(),
                event.getMinimum() == null ? null
                        : event.getMinimum().doubleValue(),
                event.getMaximum() == null ? null
                        : event.getMaximum().doubleValue(),
                event.isRedrawingNeeded(), event.isAnimated());
    }

    @Override
    public void itemSliced(ItemSlicedEvent event) {
        chart.getElement().callJsFunction("__callPointFunction", "slice",
                getSeriesIndex(event), event.getIndex(), event.isSliced(),
                event.isRedraw(), event.isAnimation());
    }

    @Override
    public void seriesAdded(SeriesAddedEvent event) {
        chart.getElement().callJsFunction("__callChartFunction", "addSeries",
                chart.getJsonFactory().parse(ChartSerialization.toJSON(
                        (AbstractConfigurationObject) event.getSeries())));
    }

    @Override
    public void seriesChanged(SeriesChangedEvent event) {
        chart.getElement().callJsFunction("__callSeriesFunction", "update",
                getSeriesIndex(event),
                chart.getJsonFactory().parse(ChartSerialization.toJSON(
                        (AbstractConfigurationObject) event.getSeries())));
    }

    @Override
    public void resetZoom(boolean redraw, boolean animate) {
        for (int i = 0; i < chart.getConfiguration().getNumberOfxAxes(); i++) {
            chart.getElement().callJsFunction("__callAxisFunction",
                    "setExtremes", AxisDimension.X_AXIS.getIndex(), i, null,
                    null, redraw, animate);
        }
        for (int i = 0; i < chart.getConfiguration().getNumberOfyAxes(); i++) {
            chart.getElement().callJsFunction("__callAxisFunction",
                    "setExtremes", AxisDimension.Y_AXIS.getIndex(), i, null,
                    null, redraw, animate);
        }
    }

    private int getSeriesIndex(AbstractSeriesEvent event) {
        return chart.getConfiguration().getSeries().indexOf(event.getSeries());
    }

}