@humanspeak/svelte-headless-table/dist/plugins/addDataExport.js

A powerful, headless table library for Svelte that provides complete control over table UI while handling complex data operations like sorting, filtering, pagination, grouping, and row expansion. Build custom, accessible data tables with zero styling opin

import { derived, get } from 'svelte/store';
import { isReadable } from '../utils/store.js';
const getObjectsFromRows = (rows, ids, childrenKey) => {
    return rows.map((row) => {
        const dataObject = Object.fromEntries(ids.map((id) => {
            const cell = row.cellForId[id];
            if (cell.isData()) {
                return [id, cell.value];
            }
            if (cell.isDisplay() && cell.column.data !== undefined) {
                let data = cell.column.data(cell, row.state);
                if (isReadable(data)) {
                    data = get(data);
                }
                return [id, data];
            }
            return [id, null];
        }));
        if (row.subRows !== undefined) {
            dataObject[childrenKey] = getObjectsFromRows(row.subRows, ids, childrenKey);
        }
        return dataObject;
    });
};
const getCsvFromRows = (rows, ids) => {
    const dataLines = rows.map((row) => {
        const line = ids.map((id) => {
            const cell = row.cellForId[id];
            if (cell.isData()) {
                return cell.value;
            }
            if (cell.isDisplay() && cell.column.data !== undefined) {
                let data = cell.column.data(cell, row.state);
                if (isReadable(data)) {
                    data = get(data);
                }
                return data;
            }
            return null;
        });
        return line.join(',');
    });
    const headerLine = ids.join(',');
    return headerLine + '\n' + dataLines.join('\n');
};
export const addDataExport = ({ format = 'object', childrenKey = 'children' } = {}) => ({ tableState, columnOptions }) => {
    const excludedIds = Object.entries(columnOptions)
        .filter(([, option]) => option.exclude === true)
        .map(([columnId]) => columnId);
    const { visibleColumns, rows } = tableState;
    const exportedIds = derived(visibleColumns, ($visibleColumns) => $visibleColumns.map((c) => c.id).filter((id) => !excludedIds.includes(id)));
    const exportedData = derived([rows, exportedIds], ([$rows, $exportedIds]) => {
        switch (format) {
            case 'json':
                return JSON.stringify(getObjectsFromRows($rows, $exportedIds, childrenKey));
            case 'csv':
                return getCsvFromRows($rows, $exportedIds);
            default:
                return getObjectsFromRows($rows, $exportedIds, childrenKey);
        }
    });
    const pluginState = { exportedData };
    return {
        pluginState
    };
};