export class helpers {
  static runOnTargetOrSelectedTokens (runFunc) {
    let tokens = []
    const targets = Array.from(game.user.targets)
    if (targets.length > 0) {
      tokens = targets
    } else if (canvas.tokens.controlled.length > 0) {
      tokens = canvas.tokens.controlled
    }
    if (tokens.length > 0) {
      runFunc(tokens)
    } else {
      ui.notifications.error('Please select or target a token')
    }
  }

  static createEffectDocument (icon, name, durationRounds, changes) {
    const effectData = {
      icon,
      id: name,
      label: name,
      duration: { rounds: 5 },
      flags: {
        swade: {
          expiration: CONFIG.SWADE.CONST.STATUS_EFFECT_EXPIRATION.EndOfTurnPrompt,
          loseTurnOnHold: true
        }
      },
      changes
    }
    return effectData
  }

  static createMutationWithEffect (icon, name, durationRounds, changes) {
    const effect = helpers.createEffectDocument(icon, name, durationRounds, changes)
    const mutate = {
      embedded: { ActiveEffect: {} }
    }
    mutate.embedded.ActiveEffect[name] = effect
    return mutate
  }

  static defaultMutationOptions (name) {
    const mutateOptions = {
      comparisonKeys: { ActiveEffect: 'label' },
      name,
      permanent: false,
      description: name
    }
    return mutateOptions
  }
}