// (C) 2007-2020 GoodData Corporation
import cloneDeep = require("lodash/cloneDeep");
import invoke = require("lodash/invoke");
import get = require("lodash/get");
import set = require("lodash/set");
import isEmpty = require("lodash/isEmpty");
import Highcharts from "./highchartsEntryPoint";
import { chartClick } from "../../utils/drilldownEventing";
import { styleVariables } from "../../styles/variables";
import { isOneOfTypes } from "../../utils/common";
import { supportedDualAxesChartTypes } from "../chartOptionsBuilder";
import { setupDrilldown } from "../events/setupDrilldownToParentAttribute";
import { IHighchartsAxisExtend } from "../../../../interfaces/HighchartsExtend";
import { IDrillConfig } from "../../../../interfaces/DrillEvents";
import { ChartType } from "../../../..";

const isTouchDevice = "ontouchstart" in window || navigator.msMaxTouchPoints;
const HIGHCHART_PLOT_LIMITED_RANGE = 1e5;

export const DEFAULT_SERIES_LIMIT = 1000;
export const DEFAULT_CATEGORIES_LIMIT = 365;
export const DEFAULT_DATA_POINTS_LIMIT = 2000;
export const MAX_POINT_WIDTH = 100;
export const HOVER_BRIGHTNESS = 0.1;
export const MINIMUM_HC_SAFE_BRIGHTNESS = Number.MIN_VALUE;

function handleTooltipOffScreen(renderTo: Highcharts.HTMLDOMElement) {
    // allow tooltip over the container wrapper
    Highcharts.css(renderTo, { overflow: "visible" });
}

function fixNumericalAxisOutOfMinMaxRange(axis: IHighchartsAxisExtend) {
    const range: number = axis.max - axis.min;
    if (range < 0) {
        // all data points is outside
        axis.translationSlope = axis.transA = HIGHCHART_PLOT_LIMITED_RANGE;
    }
}

let previousChart: any = null;

const BASE_TEMPLATE: any = {
    credits: {
        enabled: false,
    },
    title: {
        // setting title to empty string prevents it from being shown
        text: "",
    },
    series: [],
    legend: {
        enabled: false,
    },
    drilldown: {
        activeDataLabelStyle: {
            color: "#000",
            textDecoration: "none",
        },
        activeAxisLabelStyle: {
            color: styleVariables.gdColorText,
            textDecoration: "none",
        },
        drillUpButton: {
            theme: {
                style: {
                    // https://forum.highcharts.com/highcharts-usage/empty-checkbox-
                    // after-drilldown-with-x-axis-label-t33414/
                    display: "none",
                },
            },
        },
    },
    plotOptions: {
        series: {
            animation: false,
            enableMouseTracking: true, // !Status.exportMode,
            turboThreshold: DEFAULT_CATEGORIES_LIMIT,
            dataLabels: {
                style: {
                    textOutline: "none",
                },
            },
            events: {
                legendItemClick() {
                    if (this.visible) {
                        this.points.forEach((point: any) => point.dataLabel && point.dataLabel.hide());
                    }
                },
            },
            point: {
                events: {
                    click() {
                        if (isTouchDevice) {
                            // Close opened tooltip on previous clicked chart
                            // (click between multiple charts on dashboards)
                            const currentChart = this.series.chart;
                            const currentId = get(currentChart, "container.id");
                            const prevId = get(previousChart, "container.id");
                            const previousChartDisconnected = isEmpty(previousChart);
                            if (previousChart && !previousChartDisconnected && prevId !== currentId) {
                                // Remove line chart point bubble
                                invoke(previousChart, "hoverSeries.onMouseOut");
                                previousChart.tooltip.hide();
                            }

                            if (!previousChart || prevId !== currentId) {
                                previousChart = currentChart;
                            }
                        }
                    },
                },
            },
        },
    },
    chart: {
        animation: false,
        style: {
            fontFamily: 'Avenir, "Helvetica Neue", Arial, sans-serif',
        },
        events: {
            afterGetContainer() {
                handleTooltipOffScreen(this.renderTo);
            },
        },
    },
    xAxis: [
        {
            events: {
                afterSetAxisTranslation() {
                    fixNumericalAxisOutOfMinMaxRange(this);
                },
            },
        },
    ],
};

function registerDrilldownHandler(configuration: any, chartOptions: any, drillConfig: IDrillConfig) {
    set(configuration, "chart.events.drilldown", function chartDrilldownHandler(
        event: Highcharts.DrilldownEventObject,
    ) {
        chartClick(drillConfig, event, this.container, chartOptions.type);
    });

    return configuration;
}

export function handleChartLoad(chartType: ChartType) {
    return function() {
        setupDrilldown(this, chartType);
    };
}

function registerRenderHandler(configuration: any, chartOptions: any) {
    if (isOneOfTypes(chartOptions.type, supportedDualAxesChartTypes)) {
        set(configuration, "chart.events.render", handleChartLoad(chartOptions.type));
    }
    return configuration;
}

export function getCommonConfiguration(chartOptions: any, drillConfig: IDrillConfig) {
    const commonConfiguration = cloneDeep(BASE_TEMPLATE);
    const handlers = [registerDrilldownHandler, registerRenderHandler];

    return handlers.reduce(
        (configuration, handler) => handler(configuration, chartOptions, drillConfig),
        commonConfiguration,
    );
}