swadeMBHelpers.runOnTargetOrSelectedTokens(main)

async function main (tokens) {
  const tokenList = tokens.map(t => t.name).join(', ')
  const dialogOptions = {
    title: 'Shroud',
    content: `Apply <em>Shroud</em> to ${tokenList}`,
    default: 'cancel',
    buttons: [
      { label: 'OK', value: 'ok' },
      { label: 'Cancel', value: 'cancel' }
    ]
  }

  const choice = await warpgate.buttonDialog(dialogOptions)

  if (choice === 'ok') {
    await createEffect(tokens)
  }
}

async function createEffect (tokens) {
  const icon = 'icons/magic/perception/silhouette-stealth-shadow.webp'
  const effectName = 'Shroud'
  for (const token of tokens) {
    const mutate = swadeMBHelpers.createMutationWithEffect(icon, effectName, 5, [])
    const mutateOptions = swadeMBHelpers.defaultMutationOptions(effectName)
    mutate.token = {
      light: {
        alpha: 0.5,
        angle: 360,
        attenuation: 0.1,
        animation: {
          intensity: 5,
          reverse: false,
          speed: 5,
          type: 'roiling'
        },
        bright: 0,
        color: null,
        coloration: 0,
        contrast: 0,
        dim: 0.1,
        luminosity: -0.15,
        saturation: 0,
        shadows: 0.25
      }
    }
    await warpgate.mutate(token.document, mutate, {}, mutateOptions)
  }
}