import React, { useState } from "react";

import { hasValue } from "../../core/utils";
import PropTypes from "prop-types"; //Контроль свойств компонента
import { Stack, Chip, Typography, Box } from "@mui/material"; //Интерфейсные компоненты
import { P8P_DATA_TYPES } from "../../core/data_types";
import { P8P_DATA_GRID_CONFIG_PROPS } from "../../config_wrapper";
import { P8P_BOX_HEADER_FILTER_CUSTOM } from "../../theme/styles/box";
import { P8P_TYPOGRAPHY_VARIANT } from "../../theme/p8p_typography";
import { P8P_TYPOGRAPHY_MAX_LINES } from "../../theme/styles/typography";
import { P8P_STACK_HEADER_FILTER } from "../../theme/styles/stack";
import { P8PTableColumnFilterDialog } from "../p8p_table/p8p_table_column_filter_dialog";

const FilterComponent = ({ filter, columnDef, valueFromCaption, valueToCaption, valueFormatter, onFilterChanged }) => {
    //Собственное состояние - фильтруемая колонка
    const [filterColumn, setFilterColumn] = useState(null);
    const isClickable = false;

    //Значения фильтра фильтруемой колонки
    const [filterColumnFrom, filterColumnTo] = filterColumn
        ? (() => {
              return filter ? [filter.from == null ? "" : filter.from, filter.to == null ? "" : filter.to] : ["", ""];
          })()
        : ["", ""];

    //Отработка ввода значения фильтра колонки
    const handleFilterOk = (columnName, from, to) => {
        if (onFilterChanged) onFilterChanged({ columnName, from: from === "" ? null : from, to: to === "" ? null : to });
        setFilterColumn(null);
    };

    //Отработка очистки значения фильтра колонки
    const handleFilterClear = columnName => {
        if (onFilterChanged) onFilterChanged({ columnName, from: null, to: null });
        setFilterColumn(null);
    };

    //Отработка отмены ввода значения фильтра колонки
    const handleFilterCancel = () => {
        setFilterColumn(null);
    };

    return (
        <>
            <Stack sx={P8P_STACK_HEADER_FILTER({ isClickable })}>
                <Typography
                    sx={P8P_TYPOGRAPHY_MAX_LINES({ maxLines: 1 })}
                    variant={P8P_TYPOGRAPHY_VARIANT.BODY2}
                    color="P8PText.secondary"
                    title={columnDef.name}
                    noWrap
                >
                    {columnDef.name}
                </Typography>
                <Box typography={"P8PBody2"} sx={P8P_BOX_HEADER_FILTER_CUSTOM} onClick={() => setFilterColumn(columnDef.name)}>
                    <Typography variant={P8P_TYPOGRAPHY_VARIANT.BODY2}>
                        {hasValue(filter.from) && !columnDef.values && columnDef.dataType != P8P_DATA_TYPES.STR
                            ? `${valueFromCaption.toLowerCase()} `
                            : null}
                        {hasValue(filter.from) ? (valueFormatter ? valueFormatter({ value: filter.from, columnDef }) : filter.from) : null}
                        {hasValue(filter.to) && !columnDef.values && columnDef.dataType != P8P_DATA_TYPES.STR
                            ? ` ${valueToCaption.toLowerCase()} `
                            : null}
                        {hasValue(filter.to) ? (valueFormatter ? valueFormatter({ value: filter.to, columnDef }) : filter.to) : null}
                    </Typography>
                </Box>
            </Stack>
            {filterColumn ? (
                <P8PTableColumnFilterDialog
                    columnDef={columnDef}
                    from={filterColumnFrom}
                    to={filterColumnTo}
                    valueCaption={P8P_DATA_GRID_CONFIG_PROPS.valueFilterCaption}
                    valueFromCaption={P8P_DATA_GRID_CONFIG_PROPS.valueFromFilterCaption}
                    valueToCaption={P8P_DATA_GRID_CONFIG_PROPS.valueToFilterCaption}
                    okBtnCaption={P8P_DATA_GRID_CONFIG_PROPS.okFilterBtnCaption}
                    clearBtnCaption={P8P_DATA_GRID_CONFIG_PROPS.clearFilterBtnCaption}
                    cancelBtnCaption={P8P_DATA_GRID_CONFIG_PROPS.cancelFilterBtnCaption}
                    valueFormatter={valueFormatter}
                    onOk={handleFilterOk}
                    onClear={handleFilterClear}
                    onCancel={handleFilterCancel}
                />
            ) : null}
        </>
    );
};

//Контроль свойств - Текст
FilterComponent.propTypes = {
    filter: PropTypes.object,
    columnDef: PropTypes.object,
    valueFromCaption: PropTypes.string,
    valueToCaption: PropTypes.string,
    valueFormatter: PropTypes.func,
    onFilterChanged: PropTypes.func
};

//Форматирование фильтра таблицы
const formatFilterDataGrid = ({
    filters,
    columnsDef,
    valueFromCaption = P8P_DATA_GRID_CONFIG_PROPS.valueFromCaption,
    valueToCaption = P8P_DATA_GRID_CONFIG_PROPS.valueToCaption,
    valueFormatter,
    onClick,
    onFilterChanged,
    objectsCopier
}) => {
    //Форматируем фильтры под заголовок
    const formattedFilters = filters.map(filter => {
        //Определяем колонку
        const columnDef = columnsDef.find(columnDef => columnDef.name == filter.name);
        //Формирование содержимого фильтра
        const buildFilterContent = () => {
            //Инициализируем части
            const parts = [];
            //Если есть "Значение с"
            if (hasValue(filter.from)) {
                //Если необходимо добавить префикс
                if (!columnDef.values && columnDef.dataType != P8P_DATA_TYPES.STR) {
                    parts.push(`${valueFromCaption.toLowerCase()} `);
                }
                //Добавляем "Значение с"
                parts.push(valueFormatter ? valueFormatter({ value: filter.from, columnDef }) : filter.from);
            }
            //Если есть "Значение по"
            if (hasValue(filter.to)) {
                //Если необходимо добавить префикс
                if (!columnDef.values && columnDef.dataType != P8P_DATA_TYPES.STR) {
                    parts.push(` ${valueToCaption.toLowerCase()} `);
                }
                //Добавляем "Значение по"
                parts.push(valueFormatter ? valueFormatter({ value: filter.to, columnDef }) : filter.to);
            }
            //Возвращаем массив элементов
            return parts;
        };

        //При изменении состояния фильтра
        const handleFilterChanged = ({ columnName, from, to }) => {
            let newFilters = objectsCopier(filters);
            let curFilter = newFilters.find(f => f.name == columnName);
            if (from == null && to == null && curFilter) newFilters.splice(newFilters.indexOf(curFilter), 1);
            if ((from != null || to != null) && !curFilter) newFilters.push({ name: columnName, from, to });
            if ((from != null || to != null) && curFilter) {
                curFilter.from = from;
                curFilter.to = to;
            }
            if (onFilterChanged) onFilterChanged({ filters: newFilters });
        };
        //Инициализируем содержмое значения
        const content = buildFilterContent();
        //Возвращаем результат
        return {
            caption: columnDef.caption,
            // from: valueFormatter ? (
            //     <Box typography={"P8PBody2"} sx={P8P_BOX_HEADER_FILTER_CUSTOM}>
            //         {React.Children.toArray(content)}
            //     </Box>
            // ) : (
            //     content.join("")
            // ),
            from: (
                <FilterComponent
                    filter={filter}
                    columnDef={columnDef}
                    valueFromCaption={valueFromCaption}
                    valueToCaption={valueToCaption}
                    valueFormatter={valueFormatter}
                />
            ),
            customView: (
                <FilterComponent
                    filter={filter}
                    columnDef={columnDef}
                    valueFromCaption={valueFromCaption}
                    valueToCaption={valueToCaption}
                    valueFormatter={valueFormatter}
                    onFilterChanged={handleFilterChanged}
                />
            ),
            onClick: () => onClick && onClick(columnDef.name)
        };
    });
    return formattedFilters;
};

export const P8P_HEADER_FILTER_FORMAT = {
    DATA_GRID: ({
        filters,
        columnsDef,
        valueFromCaption = P8P_DATA_GRID_CONFIG_PROPS.valueFromCaption,
        valueToCaption = P8P_DATA_GRID_CONFIG_PROPS.valueToCaption,
        valueFormatter,
        onClick,
        onFilterChanged,
        objectsCopier
    }) => formatFilterDataGrid({ filters, columnsDef, valueFromCaption, valueToCaption, valueFormatter, onClick, onFilterChanged, objectsCopier })
};