Import macro

const parseFile = html => {
  const file = html.find('#file')[0].files[0]
  const tableId = html.find('#table-id')[0].value

  var reader = new FileReader();
  reader.onload = (e) => {
    const contents = e.target.result
    importContents(contents, tableId)
  }
  reader.readAsText(file)
}

const importContents = (contents, tableId) => {
  const table = game.tables.get(tableId)
  const entries = contents.split('\n').map(line => {
    return {
      type: 0, text: line, range: [1,2], weight: 1
    }
  })
  table.createEmbeddedDocuments("TableResult", entries)
  table.normalize()
}

await new Promise(resolve => {
  new Dialog({
    title: 'Import CSV File to RollTable',
    content: '<form><div class="form-group"><label style="max-width:100px">File</label><div class="form-fields"><input id="file" type="file"/></div></div><div class="form-group"><label style="max-width:100px">RollTable ID</label><div class="form-fields"><input id="table-id" type="string"></div></div></form>',
    buttons: {
      roll: {
        icon: '<i class="fas fa-file-import"></i>',
        label: "Import",
        callback: html => resolve(parseFile(html))
      },
    },
    close: () => resolve(null)
}).render(true);})