/**
 * Tests that hashed indexes are prohibited on measurement fields.
 *
 * @tags: [
 *     does_not_support_stepdowns,
 *     does_not_support_transactions,
 *     requires_fcv_51,
 *     requires_find_command,
 *     requires_getmore,
 * ]
 */
(function() {
"use strict";

load("jstests/core/timeseries/libs/timeseries.js");

if (!TimeseriesTest.timeseriesMetricIndexesEnabled(db.getMongo())) {
    jsTestLog(
        "Skipped test as the featureFlagTimeseriesMetricIndexes feature flag is not enabled.");
    return;
}

TimeseriesTest.run((insert) => {
    const collName = "timeseries_metric_index_hashed";

    const timeFieldName = "tm";
    const metaFieldName = "mm";

    // Unique metadata values to create separate buckets.
    const doc = {_id: 0, [timeFieldName]: ISODate(), [metaFieldName]: {tag: "a"}, x: 1};

    const testIndex = function(keysForCreate) {
        const coll = db.getCollection(collName);
        coll.drop();

        jsTestLog("Setting up collection: " + coll.getFullName() +
                  " with index: " + tojson(keysForCreate));

        assert.commandWorked(db.createCollection(
            coll.getName(), {timeseries: {timeField: timeFieldName, metaField: metaFieldName}}));

        // Insert data on the time-series collection and index it.
        assert.commandWorked(insert(coll, doc), "failed to insert doc: " + tojson(doc));
        assert.commandFailedWithCode(coll.createIndex(keysForCreate), ErrorCodes.CannotCreateIndex);
    };

    testIndex({_id: "hashed"});
    testIndex({x: "hashed"});
    testIndex({x: 1, y: "hashed"});
    testIndex({[`${metaFieldName}.tag`]: 1, x: "hashed"});
    testIndex({x: 1, [`${metaFieldName}.tag`]: -1, y: "hashed"});
});
}());