strudel-docker/website/src/repl/util.mjs

import { controls, evalScope, hash2code, logger } from '@strudel/core';
import { settingPatterns, defaultAudioDeviceName } from '../settings.mjs';
import { getAudioContext, initializeAudioOutput, setDefaultAudioContext } from '@strudel/webaudio';

import { isTauri } from '../tauri.mjs';
import './Repl.css';

import { createClient } from '@supabase/supabase-js';
import { nanoid } from 'nanoid';
import { writeText } from '@tauri-apps/api/clipboard';
import { createContext } from 'react';
import { $featuredPatterns, loadDBPatterns } from '@src/user_pattern_utils.mjs';

// Create a single supabase client for interacting with your database
export const supabase = createClient(
  'https://pidxdsxphlhzjnzmifth.supabase.co',
  'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJzdXBhYmFzZSIsInJlZiI6InBpZHhkc3hwaGxoempuem1pZnRoIiwicm9sZSI6ImFub24iLCJpYXQiOjE2NTYyMzA1NTYsImV4cCI6MTk3MTgwNjU1Nn0.bqlw7802fsWRnqU5BLYtmXk_k-D1VFmbkHMywWc15NM',
);

let dbLoaded;
if (typeof window !== 'undefined') {
  dbLoaded = loadDBPatterns();
}

export async function initCode() {
  // load code from url hash (either short hash from database or decode long hash)
  try {
    const initialUrl = window.location.href;
    const hash = initialUrl.split('?')[1]?.split('#')?.[0];
    const codeParam = window.location.href.split('#')[1] || '';
    // looking like https://strudel.cc/?J01s5i1J0200 (fixed hash length)
    if (codeParam) {
      // looking like https://strudel.cc/#ImMzIGUzIg%3D%3D (hash length depends on code length)
      return hash2code(codeParam);
    } else if (hash) {
      return supabase
        .from('code_v1')
        .select('code')
        .eq('hash', hash)
        .then(({ data, error }) => {
          if (error) {
            console.warn('failed to load hash', error);
          }
          if (data.length) {
            //console.log('load hash from database', hash);
            return data[0].code;
          }
        });
    }
  } catch (err) {
    console.warn('failed to decode', err);
  }
}

export const parseJSON = (json) => {
  json = json != null && json.length ? json : '{}';
  try {
    return JSON.parse(json);
  } catch {
    return '{}';
  }
};

export async function getRandomTune() {
  await dbLoaded;
  const featuredTunes = Object.entries($featuredPatterns.get());
  const randomItem = (arr) => arr[Math.floor(Math.random() * arr.length)];
  const [_, data] = randomItem(featuredTunes);
  return data;
}

export function loadModules() {
  let modules = [
    import('@strudel/core'),
    import('@strudel/tonal'),
    import('@strudel/mini'),
    import('@strudel/xen'),
    import('@strudel/webaudio'),
    import('@strudel/codemirror'),
    import('@strudel/hydra'),
    import('@strudel/serial'),
    import('@strudel/soundfonts'),
    import('@strudel/csound'),
  ];
  if (isTauri()) {
    modules = modules.concat([
      import('@strudel/desktopbridge/loggerbridge.mjs'),
      import('@strudel/desktopbridge/midibridge.mjs'),
      import('@strudel/desktopbridge/oscbridge.mjs'),
    ]);
  } else {
    modules = modules.concat([import('@strudel/midi'), import('@strudel/osc')]);
  }

  return evalScope(
    controls, // sadly, this cannot be exported from core direclty
    settingPatterns,
    ...modules,
  );
}

let lastShared;
export async function shareCode(codeToShare) {
  // const codeToShare = activeCode || code;
  if (lastShared === codeToShare) {
    logger(`Link already generated!`, 'error');
    return;
  }
  const isPublic = confirm(
    'Do you want your pattern to be public? If no, press cancel and you will get just a private link.',
  );
  // generate uuid in the browser
  const hash = nanoid(12);
  const shareUrl = window.location.origin + window.location.pathname + '?' + hash;
  const { error } = await supabase.from('code_v1').insert([{ code: codeToShare, hash, ['public']: isPublic }]);
  if (!error) {
    lastShared = codeToShare;
    // copy shareUrl to clipboard
    if (isTauri()) {
      await writeText(shareUrl);
    } else {
      await navigator.clipboard.writeText(shareUrl);
    }
    const message = `Link copied to clipboard: ${shareUrl}`;
    alert(message);
    // alert(message);
    logger(message, 'highlight');
  } else {
    console.log('error', error);
    const message = `Error: ${error.message}`;
    // alert(message);
    logger(message);
  }
}

export const ReplContext = createContext(null);

export const getAudioDevices = async () => {
  await navigator.mediaDevices.getUserMedia({ audio: true });
  let mediaDevices = await navigator.mediaDevices.enumerateDevices();
  mediaDevices = mediaDevices.filter((device) => device.kind === 'audiooutput' && device.deviceId !== 'default');
  const devicesMap = new Map();
  devicesMap.set(defaultAudioDeviceName, '');
  mediaDevices.forEach((device) => {
    devicesMap.set(device.label, device.deviceId);
  });
  return devicesMap;
};

export const setAudioDevice = async (id) => {
  let audioCtx = getAudioContext();
  if (audioCtx.sinkId === id) {
    return;
  }
  await audioCtx.suspend();
  await audioCtx.close();
  audioCtx = setDefaultAudioContext();
  await audioCtx.resume();
  const isValidID = (id ?? '').length > 0;
  if (isValidID) {
    try {
      await audioCtx.setSinkId(id);
    } catch {
      logger('failed to set audio interface', 'warning');
    }
  }
  initializeAudioOutput();
};