@sap-cloud-sdk/core/dist/odata-v2/uri-conversion/get-select.js

"use strict";
var __spreadArray = (this && this.__spreadArray) || function (to, from) {
    for (var i = 0, il = from.length, j = to.length; i < il; i++, j++)
        to[j] = from[i];
    return to;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.getSelectV2 = exports.getSelect = void 0;
var odata_common_1 = require("../../odata-common");
/**
 * Get an object containing the given Selectables as query parameter, or an empty object if none were given.
 * This retrieves where in addition to the selection (`select`) there is also an expansion (`expand`) needed.
 * @typeparam EntityT - Type of the entity to get the selection for
 * @param selects - The list of selectables to be transformed to query parameters
 * @returns An object containing the query parameters or an empty object
 */
function getSelect(selects) {
    if (selects === void 0) { selects = []; }
    var select = getSelectsAsStrings(selects);
    return select.length ? { select: filterSelects(select).join(',') } : {};
}
exports.getSelect = getSelect;
exports.getSelectV2 = getSelect;
function selectionLevel(select) {
    return select.split('/').slice(0, -1).join('/');
}
function filterSelects(selects) {
    var allFieldSelects = selects.filter(function (select) { return select.endsWith('*'); });
    var selectionLevels = allFieldSelects.map(function (select) { return selectionLevel(select); });
    return __spreadArray(__spreadArray([], allFieldSelects), selects.filter(function (select) { return !selectionLevels.includes(selectionLevel(select)); }));
}
function getSelectsAsStrings(selectables, initialSelect, parent) {
    if (initialSelect === void 0) { initialSelect = []; }
    if (parent === void 0) { parent = ''; }
    return selectables.reduce(function (select, selectable) {
        var fullFieldName = getPath(parent, selectable._fieldName);
        if (selectable instanceof odata_common_1.Link) {
            if (selectable._selects.length) {
                return getSelectsAsStrings(selectable._selects, select, fullFieldName);
            }
            return __spreadArray(__spreadArray([], select), [fullFieldName + "/*"]);
        }
        return __spreadArray(__spreadArray([], select), [fullFieldName]);
    }, initialSelect);
}
function getPath(parent, fieldName) {
    if (parent) {
        return parent + "/" + fieldName;
    }
    return fieldName;
}
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