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 * Open MCT, Copyright (c) 2014-2022, United States Government
 * as represented by the Administrator of the National Aeronautics and Space
 * Administration. All rights reserved.
 *
 * Open MCT is licensed under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * http://www.apache.org/licenses/LICENSE-2.0.
 *
 * Unless required by applicable law or agreed to in writing, software
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 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 *
 * Open MCT includes source code licensed under additional open source
 * licenses. See the Open Source Licenses file (LICENSES.md) included with
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const { test, expect } = require('../../../../pluginFixtures');
const { createDomainObjectWithDefaults, setStartOffset, setFixedTimeMode, setRealTimeMode } = require('../../../../appActions');

test.describe('Testing Display Layout @unstable', () => {
    let sineWaveObject;
    test.beforeEach(async ({ page }) => {
        await page.goto('./', { waitUntil: 'networkidle' });
        await setRealTimeMode(page);

        // Create Sine Wave Generator
        sineWaveObject = await createDomainObjectWithDefaults(page, {
            type: 'Sine Wave Generator',
            name: "Test Sine Wave Generator"
        });
    });
    test('alpha-numeric widget telemetry value exactly matches latest telemetry value received in real time', async ({ page }) => {
        // Create a Display Layout
        await createDomainObjectWithDefaults(page, {
            type: 'Display Layout',
            name: "Test Display Layout"
        });
        // Edit Display Layout
        await page.locator('[title="Edit"]').click();

        // Expand the 'My Items' folder in the left tree
        await page.locator('.c-tree__item__view-control.c-disclosure-triangle').click();
        // Add the Sine Wave Generator to the Display Layout and save changes
        await page.dragAndDrop('text=Test Sine Wave Generator', '.l-layout__grid-holder');
        await page.locator('button[title="Save"]').click();
        await page.locator('text=Save and Finish Editing').click();

        // Subscribe to the Sine Wave Generator data
        // On getting data, check if the value found in the  Display Layout is the most recent value
        // from the Sine Wave Generator
        const getTelemValuePromise = await subscribeToTelemetry(page, sineWaveObject.uuid);
        const formattedTelemetryValue = await getTelemValuePromise;
        const displayLayoutValuePromise = await page.waitForSelector(`text="${formattedTelemetryValue}"`);
        const displayLayoutValue = await displayLayoutValuePromise.textContent();
        const trimmedDisplayValue = displayLayoutValue.trim();

        await expect(trimmedDisplayValue).toBe(formattedTelemetryValue);
    });
    test('alpha-numeric widget telemetry value exactly matches latest telemetry value received in fixed time', async ({ page }) => {
        // Create a Display Layout
        await createDomainObjectWithDefaults(page, {
            type: 'Display Layout',
            name: "Test Display Layout"
        });
        // Edit Display Layout
        await page.locator('[title="Edit"]').click();

        // Expand the 'My Items' folder in the left tree
        await page.locator('.c-tree__item__view-control.c-disclosure-triangle').click();
        // Add the Sine Wave Generator to the Display Layout and save changes
        await page.dragAndDrop('text=Test Sine Wave Generator', '.l-layout__grid-holder');
        await page.locator('button[title="Save"]').click();
        await page.locator('text=Save and Finish Editing').click();

        // Subscribe to the Sine Wave Generator data
        const getTelemValuePromise = await subscribeToTelemetry(page, sineWaveObject.uuid);
        // Set an offset of 1 minute and then change the time mode to fixed to set a 1 minute historical window
        await setStartOffset(page, { mins: '1' });
        await setFixedTimeMode(page);

        // On getting data, check if the value found in the Display Layout is the most recent value
        // from the Sine Wave Generator
        const formattedTelemetryValue = await getTelemValuePromise;
        const displayLayoutValuePromise = await page.waitForSelector(`text="${formattedTelemetryValue}"`);
        const displayLayoutValue = await displayLayoutValuePromise.textContent();
        const trimmedDisplayValue = displayLayoutValue.trim();

        await expect(trimmedDisplayValue).toBe(formattedTelemetryValue);
    });
});

/**
 * Util for subscribing to a telemetry object by object identifier
 * Limitations: Currently only works to return telemetry once to the node scope
 * To Do: See if there's a way to await this multiple times to allow for multiple
 * values to be returned over time
 * @param {import('@playwright/test').Page} page
 * @param {string} objectIdentifier identifier for object
 * @returns {Promise<string>} the formatted sin telemetry value
 */
async function subscribeToTelemetry(page, objectIdentifier) {
    const getTelemValuePromise = new Promise(resolve => page.exposeFunction('getTelemValue', resolve));

    await page.evaluate(async (telemetryIdentifier) => {
        const telemetryObject = await window.openmct.objects.get(telemetryIdentifier);
        const metadata = window.openmct.telemetry.getMetadata(telemetryObject);
        const formats = await window.openmct.telemetry.getFormatMap(metadata);
        window.openmct.telemetry.subscribe(telemetryObject, (obj) => {
            const sinVal = obj.sin;
            const formattedSinVal = formats.sin.format(sinVal);
            window.getTelemValue(formattedSinVal);
        });
    }, objectIdentifier);

    return getTelemValuePromise;
}