@1771technologies/lytenyte-pro/dist/state/helpers/get-data-rect.js

Blazingly fast headless React data grid with 100s of features.

import { COLUMN_MARKER_ID, computePathMatrix, GROUP_COLUMN_PREFIX, } from "@1771technologies/lytenyte-shared";
export function getDataRect({ rows, columnStart, columnEnd, uniformGroupHeaders, visible, columnField, }) {
    const data = [];
    const columns = [];
    for (let i = columnStart; i < columnEnd && i < visible.length; i++) {
        const column = visible[i];
        if (column.id === COLUMN_MARKER_ID)
            continue;
        columns.push(column);
    }
    const groupHeaders = [];
    const hierarchy = computePathMatrix(visible);
    for (let levelIndex = 0; levelIndex < hierarchy.length; levelIndex++) {
        const level = hierarchy[levelIndex];
        const seen = new Set();
        const header = [];
        for (let i = 0; i < columns.length; i++) {
            const value = level[i];
            if (!value) {
                header.push(null);
                continue;
            }
            if (seen.has(value.idOccurrence)) {
                header.push("");
                continue;
            }
            if (!uniformGroupHeaders)
                seen.add(value.idOccurrence);
            const group = value.groupPath.at(-1);
            header.push(group);
        }
        groupHeaders.push(header);
    }
    let headers = [];
    headers = [];
    for (const v of columns) {
        headers.push(v.name ?? v.id);
    }
    for (const row of Object.values(rows)) {
        const dataForRow = [];
        for (const column of columns) {
            let field;
            if (!row) {
                field = null;
            }
            else if (column.id.startsWith(GROUP_COLUMN_PREFIX)) {
                if (row.kind === "branch")
                    field = row.key;
                else
                    field = "";
            }
            else {
                field = columnField(column, { kind: row.kind, data: row.data });
            }
            dataForRow.push(field);
        }
        data.push(dataForRow);
    }
    return {
        data,
        groupHeaders,
        columns,
        headers,
    };
}