import * as types from '../../types'
import { store, history, dispatch } from '../../store'
import { api, post, pad, preloadImage } from '../../util'
import actions from '../../actions'
import { session } from '../../session'
import throttle from 'lodash.throttle'

import { ZOOM_STEPS } from './constants'

export const setScrollPosition = start_ts => dispatch => (
  dispatch({ type: types.align.set_display_setting, key: 'start_ts', value: start_ts })
)

export const setZoom = zoom => dispatch => {
  if (0 <= zoom && zoom < ZOOM_STEPS.length) {
    dispatch({ type: types.align.set_display_setting, key: 'zoom', value: zoom })
  }
}

export const throttledSetZoom = throttle(zoom => dispatch => {
  setZoom(zoom)(dispatch)
}, 250, { leading: true })

export const setCursor = cursor_ts => dispatch => (
  dispatch({ type: types.align.set_display_setting, key: 'cursor_ts', value: cursor_ts })
)

export const showNewTimestampForm = (start_ts, text) => dispatch => {
  let croppedText;
  if (store.getState().align.annotation.start_ts) {
    croppedText = store.getState().align.annotation.text
  } else {
    croppedText = cutFirstSentence(text)
  }
  console.log(croppedText)
  dispatch({
    type: types.align.set_temporary_annotation,
    data: {
      id: 'new',
      start_ts,
      text: croppedText,
      type: 'sentence',
    }
  })
}

const cutFirstSentence = text => {
  const textToCrop = text.trim().replace("\n", " ").split("\n")[0]
  let cropIndex = textToCrop.indexOf('. ') + 1
  if (!cropIndex) cropIndex = textToCrop.length
  const croppedText = textToCrop.substr(0, cropIndex).trim()
  const updatedText = text.trim().replace(croppedText, '').trim()
  actions.site.updateText(updatedText)
  return croppedText
}

export const hideTimestampForm = () => dispatch => {
  dispatch({
    type: types.align.set_temporary_annotation,
    data: {}
  })
}