frontend/marko/page/data/components/file/component.js

const moment = require("moment")

module.exports = class {
  onCreate(input) {
    this.state = {
      modal: null,
      deleted: false,
      date: moment(input.data.time).format("MMM D, YYYY"),
    }
  }

  onInput(input) {
    if (input && input.data) {
      this.state.date = moment(input.data.time).format("MMM D, YYYY")
    }
  }

  open(modal) {
    this.state.modal = modal
  }

  close() {
    this.state.modal = null
  }

  removed() {
    this.state.deleted = true
    this.emit("removed")
  }

  sizeString(bytes) {
    const order = Math.floor(Math.log2(bytes) / 10)
    const unit = ["B", "KB", "MB", "GB", "TB", "PB"][order]
    const number = bytes / Math.pow(2, (order)*10)

    return `${number.toFixed(2)} ${unit}`
  }
}