import { noteToMidi, valueToMidi, Pattern, evalScope } from '@strudel/core';

import { aliasBank, registerSynthSounds, registerZZFXSounds, samples } from '@strudel/webaudio';

import * as core from '@strudel/core';

export async function prebake() {

  const modulesLoading = evalScope(

    // import('@strudel/core'),

    core,

    import('@strudel/draw'),

    import('@strudel/mini'),

    import('@strudel/tonal'),

    import('@strudel/webaudio'),

    import('@strudel/codemirror'),

    import('@strudel/hydra'),

    import('@strudel/soundfonts'),

    import('@strudel/midi'),

    // import('@strudel/xen'),

    // import('@strudel/serial'),

    // import('@strudel/csound'),

    // import('@strudel/osc'),

  );

  // load samples

  const ds = 'https://raw.githubusercontent.com/felixroos/dough-samples/main';

  // TODO: move this onto the strudel repo

  const ts = 'https://raw.githubusercontent.com/todepond/samples/main';

  const tc = 'https://raw.githubusercontent.com/tidalcycles/uzu-drumkit/main';

  await Promise.all([

    modulesLoading,

    registerSynthSounds(),

    registerZZFXSounds(),

    //registerSoundfonts(),

    // need dynamic import here, because importing @strudel/soundfonts fails on server:

    // => getting "window is not defined", as soon as "@strudel/soundfonts" is imported statically

    // seems to be a problem with soundfont2

    import('@strudel/soundfonts').then(({ registerSoundfonts }) => registerSoundfonts()),

    samples(`${ds}/tidal-drum-machines.json`),

    samples(`${ds}/piano.json`),

    samples(`${ds}/Dirt-Samples.json`),

    samples(`${ds}/vcsl.json`),

    samples(`${ds}/mridangam.json`),

    samples(`${tc}/strudel.json`),

  ]);

  aliasBank(`${ts}/tidal-drum-machines-alias.json`);

}

const maxPan = noteToMidi('C8');

const panwidth = (pan, width) => pan * width + (1 - width) / 2;

Pattern.prototype.piano = function () {

  return this.fmap((v) => ({ ...v, clip: v.clip ?? 1 })) // set clip if not already set..

    .s('piano')

    .release(0.1)

    .fmap((value) => {

      const midi = valueToMidi(value);

      // pan by pitch

      const pan = panwidth(Math.min(Math.round(midi) / maxPan, 1), 0.5);

      return { ...value, pan: (value.pan || 1) * pan };

    });

};