/*
    Парус 8 - Панели мониторинга - ПУП - Экономика проектов
    Панель мониторинга: Список проктов
*/

//---------------------
//Подключение библиотек
//---------------------

import React, { useState, useCallback, useEffect, useContext } from "react"; //Классы React
import { Box, Grid, Paper, Fab, Icon } from "@mui/material"; //Интерфейсные компоненты
import { object2Base64XML } from "../../core/utils"; //Вспомогательные процедуры и функции
import { TEXTS } from "../../../app.text"; //Тектовые ресурсы и константы
import { P8PDataGrid, P8P_DATA_GRID_SIZE } from "../../components/p8p_data_grid"; //Таблица данных
import { P8PFullScreenDialog } from "../../components/p8p_fullscreen_dialog"; //Полноэкранный диалог
import { P8PChart } from "../../components/p8p_chart"; //График
import { BackEndСtx } from "../../context/backend"; //Контекст взаимодействия с сервером
import { ApplicationСtx } from "../../context/application"; //Контекст приложения
import { MessagingСtx } from "../../context/messaging"; //Контекст сообщений
import { P8P_DATA_GRID_CONFIG_PROPS } from "../../config_wrapper"; //Подключение компонентов к настройкам приложения
import { PANEL_UNITS, headCellRender, dataCellRender, valueFormatter, rowExpandRender } from "./layouts"; //Дополнительная разметка и вёрстка клиентских элементов
import { Stages } from "./stages"; //Список этапов проекта

//---------
//Константы
//---------

//Стили
const STYLES = {
    CHART: { maxHeight: "300px", display: "flex", justifyContent: "center" },
    CHART_PAPER: { height: "100%" },
    CHART_FAB: { position: "absolute", top: 80, left: 16 }
};

//-----------
//Тело модуля
//-----------

//Список проектов
const Projects = () => {
    //Собственное состояние
    const [projectsDataGrid, setProjectsDataGrid] = useState({
        dataLoaded: false,
        columnsDef: [],
        filters: null,
        orders: null,
        rows: [],
        reload: true,
        pageNumber: 1,
        morePages: true,
        selectedProject: null,
        stagesFilters: []
    });

    //Состояния графиков
    const [showCharts, setShowCharts] = useState(true);
    const [problemsChart, setProblemsChart] = useState({ loaded: false, labels: [], datasets: [] });
    const [customersChart, setCustomersChart] = useState({ loaded: false, labels: [], datasets: [] });
    const [costNotesChart, setCostNotesChart] = useState({ loaded: false, labels: [], datasets: [] });

    //Подключение к контексту взаимодействия с сервером
    const { executeStored, SERV_DATA_TYPE_CLOB } = useContext(BackEndСtx);

    //Подключение к контексту приложения
    const { pOnlineShowDocument, pOnlineShowUnit, configSystemPageSize } = useContext(ApplicationСtx);

    //Подключение к контексту сообщений
    const { showMsgErr } = useContext(MessagingСtx);

    //Загрузка данных проектов с сервера
    const loadProjects = useCallback(async () => {
        if (projectsDataGrid.reload) {
            const data = await executeStored({
                stored: "PKG_P8PANELS_PROJECTS.LIST",
                args: {
                    CFILTERS: { VALUE: object2Base64XML(projectsDataGrid.filters, { arrayNodeName: "filters" }), SDATA_TYPE: SERV_DATA_TYPE_CLOB },
                    CORDERS: { VALUE: object2Base64XML(projectsDataGrid.orders, { arrayNodeName: "orders" }), SDATA_TYPE: SERV_DATA_TYPE_CLOB },
                    NPAGE_NUMBER: projectsDataGrid.pageNumber,
                    NPAGE_SIZE: configSystemPageSize,
                    NINCLUDE_DEF: projectsDataGrid.dataLoaded ? 0 : 1
                },
                attributeValueProcessor: (name, val) => (name == "SGOVCNTRID" ? undefined : val),
                respArg: "COUT"
            });
            setProjectsDataGrid(pv => ({
                ...pv,
                columnsDef: data.XCOLUMNS_DEF ? [...data.XCOLUMNS_DEF] : pv.columnsDef,
                rows: pv.pageNumber == 1 ? [...(data.XROWS || [])] : [...pv.rows, ...(data.XROWS || [])],
                dataLoaded: true,
                reload: false,
                morePages: (data.XROWS || []).length >= configSystemPageSize
            }));
        }
    }, [
        projectsDataGrid.reload,
        projectsDataGrid.filters,
        projectsDataGrid.orders,
        projectsDataGrid.dataLoaded,
        projectsDataGrid.pageNumber,
        executeStored,
        configSystemPageSize,
        SERV_DATA_TYPE_CLOB
    ]);

    //Получение данных графиков
    const loadChartData = async () => {
        const problemsChart = await executeStored({
            stored: "PKG_P8PANELS_PROJECTS.CHART_PROBLEMS",
            respArg: "COUT"
        });
        setProblemsChart(pv => ({
            ...pv,
            loaded: true,
            ...problemsChart.XCHART
        }));
        const customersChart = await executeStored({
            stored: "PKG_P8PANELS_PROJECTS.CHART_CUSTOMERS",
            respArg: "COUT"
        });
        setCustomersChart(pv => ({
            ...pv,
            loaded: true,
            ...customersChart.XCHART
        }));
        const costNotesChart = await executeStored({
            stored: "PKG_P8PANELS_PROJECTS.CHART_FCCOSTNOTES",
            respArg: "COUT"
        });
        setCostNotesChart(pv => ({
            ...pv,
            loaded: true,
            ...costNotesChart.XCHART
        }));
    };

    //Отображение журнала платежей по этапу проекта
    const showPayNotes = async ({ sender, direction }) => {
        const data = await executeStored({
            stored: "PKG_P8PANELS_PROJECTS.SELECT_FIN",
            args: { NRN: sender.NRN, NDIRECTION: direction }
        });
        if (data.NIDENT) pOnlineShowUnit({ unitCode: "PayNotes", inputParameters: [{ name: "in_SelectList_Ident", value: data.NIDENT }] });
        else showMsgErr(TEXTS.NO_DATA_FOUND);
    };

    //Отображение детализации точки графика затрат
    const showCostNotesChartDetail = async ({ unitCode, year, month }) => {
        const data = await executeStored({
            stored: "PKG_P8PANELS_PROJECTS.CHART_FCCOSTNOTES_SELECT_COST",
            args: { NYEAR: year, NMONTH: month }
        });
        if (data.NIDENT) pOnlineShowUnit({ unitCode, inputParameters: [{ name: "in_SelectList_Ident", value: data.NIDENT }] });
        else showMsgErr(TEXTS.NO_DATA_FOUND);
    };

    //Отображение этапов проекта
    const showStages = ({ sender, filters = [] } = {}) =>
        setProjectsDataGrid(pv => ({ ...pv, selectedProject: { ...sender }, stagesFilters: [...filters] }));

    //При изменении состояния фильтра
    const handleFilterChanged = ({ filters }) => setProjectsDataGrid(pv => ({ ...pv, filters: [...filters], pageNumber: 1, reload: true }));

    //При изменении состояния сортировки
    const handleOrderChanged = ({ orders }) => setProjectsDataGrid(pv => ({ ...pv, orders: [...orders], pageNumber: 1, reload: true }));

    //При изменении количества отображаемых страниц
    const handlePagesCountChanged = () => setProjectsDataGrid(pv => ({ ...pv, pageNumber: pv.pageNumber + 1, reload: true }));

    //При закрытии списка этапов проекта
    const handleStagesClose = () => setProjectsDataGrid(pv => ({ ...pv, selectedProject: null, stagesFilters: [] }));

    //Отработка нажатия на график
    const handleChartClick = ({ item }) => {
        if (item.SFILTER && item.SFILTER_VALUE)
            setProjectsDataGrid(pv => ({
                ...pv,
                filters: [{ name: item.SFILTER, from: item.SFILTER_VALUE }],
                pageNumber: 1,
                reload: true
            }));
        if (item.SUNITCODE && item.NYEAR && item.NMONTH) showCostNotesChartDetail({ unitCode: item.SUNITCODE, year: item.NYEAR, month: item.NMONTH });
    };

    //При необходимости обновить данные
    useEffect(() => {
        loadProjects();
    }, [projectsDataGrid.reload, loadProjects]);

    //При подключении к странице
    useEffect(() => {
        loadChartData();
        // eslint-disable-next-line react-hooks/exhaustive-deps
    }, []);

    //Генерация содержимого
    return (
        <Box p={1}>
            <Grid container spacing={1}>
                {showCharts ? (
                    <>
                        <Grid item xs={4}>
                            <Paper elevation={3} sx={STYLES.CHART_PAPER}>
                                {problemsChart.loaded ? <P8PChart {...problemsChart} onClick={handleChartClick} style={STYLES.CHART} /> : null}
                            </Paper>
                        </Grid>
                        <Grid item xs={4}>
                            <Paper elevation={3} sx={STYLES.CHART_PAPER}>
                                {customersChart.loaded ? <P8PChart {...customersChart} onClick={handleChartClick} style={STYLES.CHART} /> : null}
                            </Paper>
                        </Grid>
                        <Grid item xs={4}>
                            <Paper elevation={3} sx={STYLES.CHART_PAPER}>
                                {costNotesChart.loaded ? <P8PChart {...costNotesChart} onClick={handleChartClick} style={STYLES.CHART} /> : null}
                            </Paper>
                        </Grid>
                    </>
                ) : null}
                <Grid item xs={12}>
                    {projectsDataGrid.dataLoaded ? (
                        <P8PDataGrid
                            {...P8P_DATA_GRID_CONFIG_PROPS}
                            columnsDef={projectsDataGrid.columnsDef}
                            rows={projectsDataGrid.rows}
                            size={P8P_DATA_GRID_SIZE.SMALL}
                            filtersInitial={projectsDataGrid.filters}
                            morePages={projectsDataGrid.morePages}
                            reloading={projectsDataGrid.reload}
                            expandable={true}
                            headCellRender={headCellRender}
                            dataCellRender={prms => dataCellRender({ ...prms, panelUnit: PANEL_UNITS.PROJECTS, showStages })}
                            rowExpandRender={prms =>
                                rowExpandRender({
                                    ...prms,
                                    panelUnit: PANEL_UNITS.PROJECTS,
                                    pOnlineShowDocument,
                                    showPayNotes,
                                    showStages
                                })
                            }
                            valueFormatter={prms => valueFormatter({ ...prms, panelUnit: PANEL_UNITS.PROJECTS })}
                            onOrderChanged={handleOrderChanged}
                            onFilterChanged={handleFilterChanged}
                            onPagesCountChanged={handlePagesCountChanged}
                        />
                    ) : null}
                    {projectsDataGrid.selectedProject ? (
                        <P8PFullScreenDialog title={`Этапы проекта "${projectsDataGrid.selectedProject.SNAME_USL}"`} onClose={handleStagesClose}>
                            <Stages
                                project={projectsDataGrid.selectedProject.NRN}
                                projectName={projectsDataGrid.selectedProject.SNAME_USL}
                                filters={projectsDataGrid.stagesFilters}
                            />
                        </P8PFullScreenDialog>
                    ) : null}
                </Grid>
            </Grid>
            {problemsChart.loaded || customersChart.loaded || costNotesChart.loaded ? (
                <Fab size="small" color="secondary" sx={STYLES.CHART_FAB} onClick={() => setShowCharts(!showCharts)}>
                    <Icon>{showCharts ? "expand_less" : "expand_more"}</Icon>
                </Fab>
            ) : null}
        </Box>
    );
};

//----------------
//Интерфейс модуля
//----------------

export { Projects };