//******************************************************************************************************
//  TrendData.tsx - Gbtc
//
//  Copyright © 2023, Grid Protection Alliance.  All Rights Reserved.
//
//  Licensed to the Grid Protection Alliance (GPA) under one or more contributor license agreements. See
//  the NOTICE file distributed with this work for additional information regarding copyright ownership.
//  The GPA licenses this file to you under the MIT License (MIT), the "License"; you may not use this
//  file except in compliance with the License. You may obtain a copy of the License at:
//
//      http://opensource.org/licenses/MIT
//
//  Unless agreed to in writing, the subject software distributed under the License is distributed on an
//  "AS-IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. Refer to the
//  License for the specific language governing permissions and limitations.
//
//  Code Modification History:
//  ----------------------------------------------------------------------------------------------------
//  03/30/23 - Gabriel Santos
//       Generated original version of source code.
//
//******************************************************************************************************

import React from 'react';
import moment from 'moment';
import _ from 'lodash';
import TrendSearchNavbar from './TrendDataNavbar';
import TrendPlot from './TrendPlot/TrendPlot';
import { TrendSearch } from '../../Global';
import AllSettingsModal from './Settings/AllSettingsModal';
import { SelectTrendDataSettings } from '../../Store/SettingsSlice';
import { useAppSelector, useAppDispatch } from './../../hooks';
import { SVGIcons } from '@gpa-gemstone/gpa-symbols';
import { ValueListGroupSlice } from '../../Store/Store';
import { TrendDefaults } from './HelperFunctions';

const momentDateFormat = "MM/DD/YYYY";
const trendSearchId = "TrendDataChartAll";
const defaultsIgnored = new Set(["ID", "TimeFilter", "Type", "Channels", "PlotFilter"]);
const defaultValueList = "TrendLabelDefaults";

const TrendData = () => {
    const closureHandler = React.useRef<((o: boolean) => void)>(() => { return; });
    const [showNav, setShowNav] = React.useState<boolean>(getShowNav());
    const [plotList, setPlotList] = React.useState<TrendSearch.ITrendPlot[]>([]);
    const [defaultPlotSettings, setDefaultPlotSettings] = React.useState<TrendSearch.ITrendPlot>(TrendDefaults.getPlotSettingsOrDefault);
    const [markerDefaults, setMarkerDefaults] = React.useState<TrendSearch.IMarkerSettingsBundle>(TrendDefaults.getMarkerSettingsOrDefault);
    const [lineDefaults, setLineDefaults] = React.useState<TrendSearch.ILinePlotSettingsBundle>(TrendDefaults.getLineSettingsOrDefault);
    const [showSettings, setShowSettings] = React.useState<boolean>(false);
    const [plotsMovable, setPlotsMovable] = React.useState<boolean>(false);
    const trendDatasettings = useAppSelector(SelectTrendDataSettings);

    const defaultSliceStatus = useAppSelector((state) => ValueListGroupSlice.Status(state, defaultValueList));
    const defaultSliceData = useAppSelector((state) => ValueListGroupSlice.Data(state, defaultValueList));
    const dispatch = useAppDispatch();

    function getShowNav(): boolean {
        if (Object.prototype.hasOwnProperty.call(localStorage, 'SEbrowser.TrendData.ShowNav'))
            return JSON.parse(localStorage.getItem('SEbrowser.TrendData.ShowNav'));
        else
            return true;
    }

    const removePlot = React.useCallback(((ID: string) => {
        const index = plotList.findIndex(item => item.ID === ID);
        const newList = [...plotList];
        newList.splice(index, 1);
        setPlotList(newList);
    }), [plotList, setPlotList]);

    const setPlot = React.useCallback(((ID: string, record: TrendSearch.ITrendPlot, field: keyof (TrendSearch.ITrendPlot)) => {
        const index = plotList.findIndex(item => item.ID === ID);
        const newList: any[] = [...plotList];
        newList[index][field] = record[field] as any;
        setPlotList(newList);
    }), [plotList, setPlotList]);

    const movePlot = React.useCallback(((idNear: string, idMove: string, isBeforeNear: boolean) => {
        if (idNear === idMove) return;
        const newList: any[] = [...plotList];
        const oldIndex = newList.findIndex(item => item.ID === idMove);
        if (oldIndex < 0) {
            console.error(`Could not find plot with ID ${idMove} when trying to move plot.`);
            return;
        }
        const movedItem = newList.splice(oldIndex, 1);
        const newIndex = newList.findIndex(item => item.ID === idNear);
        if (oldIndex < 0) {
            console.error(`Could not find plot with ID ${idNear} when trying to move plot.`);
            return;
        }
        newList.splice(newIndex + (isBeforeNear ? 0 : 1), 0, movedItem[0]);
        setPlotList(newList);
    }), [plotList, setPlotList]);

    const setAllPlot = React.useCallback(((record: TrendSearch.ITrendPlot, field: keyof (TrendSearch.ITrendPlot)) => {
        const newList: any[] = [...plotList];
        newList.forEach((item: TrendSearch.ITrendPlot, index: number) => {
            newList[index][field] = record[field];
        });
        setPlotList(newList);
    }), [plotList]);

    const concatNewContainers = React.useCallback((newContainers: TrendSearch.ITrendPlot[]) => {
        const defaultAppliedContainers = _.cloneDeep(newContainers);
        Object.keys(defaultPlotSettings).forEach(field => {
            if (defaultPlotSettings[field] != null && !defaultsIgnored.has(field))
                defaultAppliedContainers.forEach(container => {
                    container[field] = defaultPlotSettings[field];
                });
        });
        if (trendDatasettings.InsertAtStart)
            setPlotList(defaultAppliedContainers.concat(plotList));
        else
            setPlotList(plotList.concat(defaultAppliedContainers));
    }, [plotList, setPlotList, trendDatasettings.InsertAtStart, defaultPlotSettings]);

    const removeAllCharts = React.useCallback(() => {
        setPlotList([]);
    }, [setPlotList]);

    const closeSettings = React.useCallback((
        (open: boolean) => closureHandler.current(open)
    ), [closureHandler.current]);

    const toggleNavbar = React.useCallback((
        () => setShowNav(!showNav)
    ), [showNav]);

    React.useEffect(() => {
        if (defaultSliceStatus === 'uninitiated' || defaultSliceStatus === 'changed')
            dispatch(ValueListGroupSlice.Fetch(defaultValueList));
    }, [defaultSliceStatus]);

    React.useEffect(() => {
        // only allow settings this if it hasn't been set before
        if (defaultSliceStatus === 'idle' && defaultPlotSettings.LabelComponents.length === 0)
            setDefaultPlotSettings({ ...defaultPlotSettings, LabelComponents: defaultSliceData.map(item => item.Value) });
    }, [defaultSliceStatus]);

    // These store settings into local storage
    React.useEffect(() => {
        TrendDefaults.storePlotSettings(defaultPlotSettings);
    }, [defaultPlotSettings]);

    /* ToDo: Uncomment later, Trying to store these as is breaks things because you can't just store JSX elements as if they are objects with session storage,
    but the way these are stored may change since we may move to ReactIcons over deprecated SVGIcons anyway...
    React.useEffect(() => {
        TrendDefaults.storeMarkerSettings(markerDefaults);
    }, [markerDefaults]);
    */

    React.useEffect(() => {
        TrendDefaults.storeLineSettings(lineDefaults);
    }, [lineDefaults]);

    return (
        <div className="container-fluid d-flex h-100 flex-column" style={{ height: 'inherit' }}>
            <TrendSearchNavbar
                ToggleVis={toggleNavbar}
                ShowNav={showNav}
                SetShowAllSettings={setShowSettings}
                AddNewCharts={concatNewContainers}
                RemoveAllCharts={removeAllCharts}
                TimeFilter={defaultPlotSettings.TimeFilter}
                LinePlot={defaultPlotSettings.PlotFilter}
                Movable={plotsMovable}
                SetMovable={setPlotsMovable}
                PlotIds={plotList.map(plot => { return { ID: plot.ID, Width: plot.Width, Height: plot.Height } })}
            />
            <div className={'row'} style={{ flex: 1, overflow: 'hidden' }}>
                <div className={'col-12'} style={{ height: '100%', overflowY: 'scroll', overflowX: 'hidden' }} id={trendSearchId}>
                    {plotList.map(element => <TrendPlot key={element.ID} DragMode={plotsMovable}
                        Plot={element} SetPlot={setPlot} RemovePlot={removePlot} SplicePlot={movePlot}
                        HandleOverlay={closeSettings} MarkerDefaults={markerDefaults} LineDefaults={lineDefaults}
                    />)}
                </div>
            </div>
            <AllSettingsModal Show={showSettings} SetShow={setShowSettings} ApplyFieldToAll={setAllPlot}
                Defaults={defaultPlotSettings} SetDefaults={setDefaultPlotSettings}
                MarkerDefaults={markerDefaults} SetMarkerDefaults={setMarkerDefaults}
                LinePlotDefaults={lineDefaults} SetLinePlotDefaults={setLineDefaults} />
        </div>
    );
}

export default TrendData;
