// luma.gl
// SPDX-License-Identifier: MIT
// Copyright (c) vis.gl contributors
import { log, loadScript } from '@luma.gl/core';
const DEFAULT_SPECTOR_PROPS = {
    spector: log.get('spector') || log.get('spectorjs')
};
// https://github.com/BabylonJS/Spector.js#basic-usage
const SPECTOR_CDN_URL = 'https://cdn.jsdelivr.net/npm/spectorjs@0.9.30/dist/spector.bundle.js';
const LOG_LEVEL = 1;
let spector = null;
let initialized = false;
/** Loads spector from CDN if not already installed */
export async function loadSpectorJS(props) {
    if (!globalThis.SPECTOR) {
        try {
            await loadScript(SPECTOR_CDN_URL);
        }
        catch (error) {
            log.warn(String(error));
        }
    }
}
export function initializeSpectorJS(props) {
    props = { ...DEFAULT_SPECTOR_PROPS, ...props };
    if (!props?.spector) {
        return null;
    }
    if (!spector && globalThis.SPECTOR) {
        log.probe(LOG_LEVEL, 'SPECTOR found and initialized')();
        spector = new globalThis.SPECTOR.Spector();
        if (globalThis.luma) {
            globalThis.luma.spector = spector;
        }
    }
    if (!spector) {
        return null;
    }
    if (!initialized) {
        initialized = true;
        // enables recording some extra information merged in the capture like texture memory sizes and formats
        spector.spyCanvases();
        // A callback when results are ready
        spector?.onCaptureStarted.add((capture) => log.info('Spector capture started:', capture)());
        spector?.onCapture.add((capture) => {
            log.info('Spector capture complete:', capture)();
            // Use undocumented Spector API to open the UI with our capture
            // See https://github.com/BabylonJS/Spector.js/blob/767ad1195a25b85a85c381f400eb50a979239eca/src/spector.ts#L124
            spector?.getResultUI();
            spector?.resultView.display();
            spector?.resultView.addCapture(capture);
        });
    }
    if (props?.canvas) {
        // @ts-expect-error If spector is specified as a canvas id, only monitor that canvas
        if (typeof props.spector === 'string' && props.spector !== props.canvas.id) {
            return spector;
        }
        // capture startup
        // spector?.captureCanvas(props?.canvas);
        spector?.startCapture(props?.canvas, 500); // 500 commands
        new Promise(resolve => setTimeout(resolve, 2000)).then(_ => {
            log.info('Spector capture stopped after 2 seconds')();
            spector?.stopCapture();
            // spector?.displayUI();
        });
    }
    return spector;
}