const PageTree = require('../page_tree')
const Dialogue = require('./dialogue')
const api = require('../api')

const AdminPages = {
  oninit: function(vnode) {
    this.error = ''
    this.pages = []
    this.removePage = null

    document.title = 'Pages - Admin NFP Moe'
    this.fetchPages(vnode)
  },

  fetchPages: function(vnode) {
    this.loading = true
    this.error = ''

    return api.sendRequest({
      method: 'GET',
      url: '/api/auth/pages',
    })
    .then((result) => {
      this.pages = result.tree
    }, (err) => {
      this.error = err.message
    })
    .then(() => {
      this.loading = false
      m.redraw()
    })
  },

  confirmRemovePage: function(vnode) {
    let removingPage = this.removePage
    this.removePage = null
    this.loading = true
    m.redraw()

    return api.sendRequest({
      method: 'DELETE',
      url: '/api/auth/pages/' + removingPage.id,
    })
    .then(() => PageTree.refreshTree())
    .then(
      () => this.fetchPages(vnode),
      (err) => {
        this.error = err.message
        this.loading = false
        m.redraw()
      }
    )
  },

  drawPage: function(vnode, page) {
    return [
      m('tr', [
        m('td', [
          page.parent_id ? m('span.subpage', ' - ') : null,
          m(m.route.Link, { href: '/admin/pages/' + page.id }, page.name),
        ]),
        m('td', m(m.route.Link, { href: '/page/' + page.path }, '/page/' + page.path)),
        m('td.right', page.updated_at.replace('T', ' ').split('.')[0]),
        m('td.right', m('button', { onclick: function() { vnode.state.removePage = page } }, 'Remove')),
      ]),
    ].concat(page.children ? page.children.map(AdminPages.drawPage.bind(this, vnode)) : [])
  },

  view: function(vnode) {
    return [
      m('div.admin', [
        m('div.inside.vertical', [
          m('div.spacer'),
          m('h2', 'All pages'),
          m('div.actions', [
            m('span', 'Actions:'),
            m(m.route.Link, { href: '/admin/pages/add' }, 'Create new page'),
          ]),
          m('div.error', {
            hidden: !this.error,
            onclick: function() { vnode.state.error = '' },
          }, this.error),
          this.loading
            ? m('div.loading-spinner')
            : m('table', [
                m('thead', 
                  m('tr', [
                    m('th', 'Title'),
                    m('th', 'Path'),
                    m('th.right', 'Updated'),
                    m('th.right', 'Actions'),
                  ])
                ),
                m('tbody', this.pages.map(AdminPages.drawPage.bind(this, vnode))),
              ],
          ),
          /*m(Pages, {
            base: '/admin/articles',
            links: this.links,
          }),*/
        ]),
      ]),
      m(Dialogue, {
        hidden: vnode.state.removePage === null,
        title: 'Delete ' + (vnode.state.removePage ? vnode.state.removePage.name : ''),
        message: 'Are you sure you want to remove "' + (vnode.state.removePage ? vnode.state.removePage.name : '') + '" (' + (vnode.state.removePage ? vnode.state.removePage.path : '') + ')',
        yes: 'Remove',
        yesclass: 'alert',
        no: 'Cancel',
        noclass: 'cancel',
        onyes: this.confirmRemovePage.bind(this, vnode),
        onno: function() { vnode.state.removePage = null },
      }),
    ]
  },
}

module.exports = AdminPages