module.exports = function(RED){

    const dav = require('dav')
    const https = require('https')

    function NextcloudCardDav (config) {
        RED.nodes.createNode(this, config)
        this.server = RED.nodes.getNode(config.server)
        this.addressBook = config.addressBook
        const node = this
    
        node.on('input', (msg) => {
          const xhr = new dav.transport.Basic(
            new dav.Credentials({
              username: node.server.credentials.user,
              password: node.server.credentials.pass
            })
          )
    
          // Server + Basepath
          let cardDavUri = node.server.address + '/remote.php/dav/addressbooks/users/'
          // User
          cardDavUri += node.server.credentials.user + '/'
          // ToDo Filter ?
          dav.createAccount({ server: cardDavUri, xhr: xhr, accountType: 'carddav' })
            .then(function (account) {
              if (!account.addressBooks) {
                node.error('Nextcloud:CardDAV -> no addressbooks found.')
                return
              }
              // account instanceof dav.Account
              account.addressBooks.forEach(function (addressBook) {
                // Wenn Adressbuch gesetzt ist, dann nur diesen abrufen
                let c = msg.addressBook || node.addressBook
                if (!c || !c.length || (c && c.length && c === addressBook.displayName)) {
                  dav.listVCards(addressBook, { xhr: xhr })
                    .then(function (addressBookEntries) {
                      let vcfList = { 'payload': { 'name': addressBook.displayName, 'data': [] } }
                      addressBookEntries.forEach(function (addressBookEntry) {
                        const keyValue = addressBookEntry.addressData.split('\n')
                        let vcfJson = {}
                        for (let x = 0; x < keyValue.length; x++) {
                          const temp = keyValue[x].split(':')
                          vcfJson[temp[0]] = temp[1]
                        }
                        vcfList.payload.data.push(vcfJson)
                      })
                      node.send(vcfList)
                    }, function () {
                      node.error('Nextcloud:CardDAV -> get cards went wrong.')
                    })
                }
              })
            }, function () {
              node.error('Nextcloud:CardDAV -> get addressBooks went wrong.')
            })
        })
      }
      RED.nodes.registerType('nextcloud-carddav', NextcloudCardDav)
}