<template lang="pug">
  transition(:duration="400")
    .modal(v-show='isShown', v-cloak)
      transition(name='modal-background')
        .modal-background(v-show='isShown')
      .modal-container
        transition(name='modal-content')
          .modal-content(v-show='isShown')
            header.is-indigo {{ $t('modal.movepagetitle') }}
            section
              label.label {{ $t('modal.movepagepath') }}
              p.control.is-fullwidth(v-bind:class='{ "is-loading": isLoading }')
                input.input(type='text', v-bind:placeholder='$t("modal.movepageplaceholder")', v-model='movePath', ref='movePageInput', @keyup.enter='move', @keyup.esc='cancel')
                span.help.is-red(v-show='isInvalid') {{ $t('modal.movepageinvalid') }}
                span.note {{ $t('modal.movepagewarning') }}
            footer
              a.button.is-grey.is-outlined(v-on:click='cancel') {{ $t('modal.discard') }}
              a.button.is-indigo(v-on:click='move') {{ $t('modal.move') }}
</template>

<script>
export default {
  name: 'modal-move-page',
  props: ['currentPath'],
  data () {
    return {
      movePath: '',
      isLoading: false,
      isInvalid: false
    }
  },
  computed: {
    isShown () {
      if (this.$store.state.modalMovePage.shown) {
        this.movePath = this.currentPath
        this.makeSelection()
      }
      return this.$store.state.modalMovePage.shown
    }
  },
  methods: {
    makeSelection() {
      let self = this
      self._.delay(() => {
        let startPos = (self._.includes(self.currentPath, '/')) ? self._.lastIndexOf(self.movePath, '/') + 1 : 0
        self.$helpers.form.setInputSelection(self.$refs.movePageInput, startPos, self.movePath.length)
      }, 100)
    },
    cancel() {
      this.$store.dispatch('modalMovePage/close')
    },
    move () {
      this.isInvalid = false
      let newDocPath = this.$helpers.pages.makeSafePath(this.movePath)
      if (this._.isEmpty(newDocPath) || newDocPath === this.currentPath || newDocPath === 'home') {
        this.isInvalid = true
      } else {
        this.isLoading = true
        this.$http.put(window.location.href, {
          move: newDocPath
        }).then(resp => {
          return resp.json()
        }).then(resp => {
          if (resp.ok) {
            window.location.assign('/' + newDocPath)
          } else {
            this.loading = false
            self.$store.dispatch('alert', {
              style: 'red',
              icon: 'ui-2_square-remove-09',
              msg: resp.msg
            })
          }
        }).catch(err => {
          this.loading = false
          self.$store.dispatch('alert', {
            style: 'red',
            icon: 'ui-2_square-remove-09',
            msg: 'Error: ' + err.body.msg
          })
        })
      }
    }
  }
}
</script>
