//
// Angular file upload hack
//
// TODO modularize for reuse
function handleFiles(ev) {
  var selector = 'js-file-upload';
  var $scope;
  var vm;

  if ('INPUT' !== ev.target.tagName || 'file' !== ev.target.type || -1 === ev.target.className.indexOf(selector)) {
    return;
  }

  $scope = angular.element(ev.target).scope();
  // 'vm' is the Controller As name.
  vm = $scope.vm;
  vm.currentFiles = ev.target.files;
  var file = vm.currentFiles[0];
  vm.isZip = /\.zip$/.test(file.name);
  vm.unzip = vm.isZip;
  vm.stripZip = vm.isZip;
  $scope.$digest();
  console.log('[handleFiles] vm.currentFiles:');
  console.log(vm.currentFiles);
}
window.document.body.addEventListener('change', handleFiles);

app.controller('websiteCtrl', [
  '$scope', '$q', 'Auth', 'azp@oauth3.org', '$timeout'
, function ($scope, $q, Auth, Oauth3, $timeout) {

  var vm = this;
  vm.domains = [];
  //vm.unzipPath = '/';
  vm.webPath = '/';

  Auth.api = function (apiname, opts) {
    var els = [];

    return $q.all(Auth.sessions.map(function (session) {

      return Auth.get(session).then(function (oauth3) {

        return oauth3.api(apiname, {}).then(function (collection) {

          if (collection.error) {
            // not all tokens support all apis
            return;
          }

          if (!Array.isArray(collection)) {
            console.error('collection is not an array');
            console.error(collection);
            return;
          }

          collection.forEach(function (el) {
            els.push(el);
            el.session = session.token.sub + '@' + session.token.iss;
          });

        });
      });
    })).then(function (results) {
      return els;
    });
  };

  vm.getDomains = function () {
    return Auth.oauth3.api('domains.list', {}).then(function (result) {
      vm.domains = result.registrations || result;
    });
  };

  vm.setDomain = function () {
    if (!vm.domains || !vm.domains.length) {
      vm.domain = { domain: vm.newDomain };
      return;
    }

    vm.domains.some(function (domain) {
      if (domain.domain === vm.newDomain) {
        vm.domain = domain;
        return true;
      }
    });

    if (!vm.domain) {
      vm.domain = { domain: vm.newDomain };
    }

    if (!vm.domain.tld) {
      var parts = vm.domain.domain.split('.');
      vm.domain.sld = parts.shift();
      vm.domain.tld = parts.join('.');
    }

    vm.setRecord();
  };

  vm.selectDomain = function (domain) {
    vm.domain = domain; //vm.selectedDomain.description;
    vm.newDomain = vm.domain.domain;

    return Auth.api('dns.list', { }).then(function (records) {
      records = records.filter(function (r) {
        return /^A(AAA)?$/i.test(r.type) && ((r.sld + '.' + r.tld) === vm.domain.domain || r.zone === vm.domain.domain);
      });
      vm.records = records;
      records.forEach(function (record) {
        if (!record.sub) {
          record.sub = record.host.replace('.' + record.zone, '');
          if (record.host === record.zone) {
            record.sub = '@';
          }
        }
      });
      console.log('[selectDomain] dns records:');
      console.log(records);
    });
  };

  vm.setRecord = function () {
    // TODO set record based on (record.host === sub + domain.domain)
    var sub = vm.newRecord;

    if ('@' === sub) {
      sub = '';
    }
    vm.record = { sub: sub, host: (sub ? sub + '.' : '') + vm.domain.domain };
    vm.currentHost = vm.record.host;

    console.log('[setRecord] vm.record:');
    console.log(vm.record);
  };

  vm.selectRecord = function (record) {
    vm.record = record;
    vm.newRecord = record.sub;
    vm.currentHost = record.host; // .replace(new RegExp('\\.' + vm.domain.domain.replace(/\./g, '\\.') + '$', ''));
  };

  vm._createWebsite = function (pkg) {
    return pkg.add({
      hostname: vm.currentHost
    , domain: vm.currentHost
    , tld: vm.domain.tld
    , sld: vm.domain.sld
    //, sub: vm.record.sub
    , multipart: { site: vm.currentFiles[0] }
    , unzip: vm.unzip
    , strip: vm.stripZip
    , path: vm.webPath
    }).then(function (result) {
      window.alert(JSON.stringify(result));
    });
  };

  vm._isSubDomain = function (sub, domain) {
    return -1 !== ('.' + sub).indexOf(('.' + domain));
  };

  vm.Sites = {};
  vm.Sites.create = function () {
    var pkg = Auth.oauth3.pkg('www@daplie.com');
    var parts;
    var sub;
    var sld;
    var tld;

    //vm.unlock('webpreneur');
    if (!vm.currentFiles || !vm.currentFiles.length) {
      window.alert('No files chosen.');
      return;
    }
    if (1 !== vm.currentFiles.length) {
      window.alert('Too many files chosen.');
      return;
    }
    if (!vm.currentHost) {
      window.alert('No hostname chosen.');
      return;
    }

    if (vm.domain) {
      if (!vm.domain.tld || !vm.domain.sld) {
        parts = vm.domain.domain.split('.');
        sld = parts.shift();
        tld = parts.join('.');
      } else {
        sld = vm.domain.sld;
        tld = vm.domain.tld;
      }
    } else {
      parts = vm.currentHost.split('.');
      // TODO get list of tlds
      tld = parts.pop();
      sld = parts.pop();
      sub = parts.join('.');
    }

    // already validated
    if (vm.sites.some(function (r) {
      return -1 !== ('.' + vm.currentHost).indexOf(('.' + r.domain));
    })) {
      vm._createWebsite(pkg);
      return;
    }

    // We're making a request to claim a domain
    // (because two users could both claim a single domain)
    // We're claiming it at the top level (i.e. example.com)
    // but we could also claim it at the subdomain level (needs UI update)
    var domainReq = { sld: sld, tld: tld, sub: undefined };
    return pkg.request(domainReq).then(function (result) {
      var sess;
      var prom;
      var def;

      // can validate automatically
      if (vm.domain.session && vm._isSubDomain(vm.currentHost, vm.domain.domain)) {
        // this should always succeed
        Auth.sessions.some(function (session) {
          if (vm.domain.session === (session.token.sub + '@' + session.token.iss)) {
            sess = session;
            return session;
          }
        });

        if (sess) {
          prom = Auth.get(sess).then(function (oauth3) {
            return oauth3.api('dns.set', { sld: sld, tld: tld, sub: ('' + result.data.prefix), type: 'TXT', ttl: 300, value: result.data.challenge });
          });
        }
      }

      if (!prom) {
        def = $q.defer();
        // must validate manually
        window.alert(
          "Please set a TXT record for '"
        + ('' + result.data.prefix) + '.' + sld + '.' + tld
        + "' with the value '" + result.data.challenge + "' and then continue."
        );
        def.resolve();
        prom = def.promise;
      }

      return prom.then(function () {
        return pkg.claim(domainReq).then(function (result) {
          return vm._createWebsite(pkg);
        });
      });

    });
  };
  vm.createWebsite = vm.Sites.create;
  vm.Sites.archive = function (r) {
    var pkg = Auth.oauth3.pkg('www@daplie.com');

    return pkg.archive({
      hostname: r.domain
    , domain: r.domain
    , tld: r.tld
    , sld: r.sld
    //, sub: vm.record.sub
    //, path: vm.webPath
    }).then(function (result) {
      window.alert(JSON.stringify(result));
      // TODO use iframe to initiate download?
      window.open(result.data.url);
    });
  };
  vm.Sites.remove = function (r) {
    if (!window.confirm("Delete files for this site?")) {
      return;
    }

    var pkg = Auth.oauth3.pkg('www@daplie.com');
    return pkg.remove({
      hostname: r.domain
    , domain: r.domain
    , tld: r.tld
    , sld: r.sld
    //, sub: vm.record.sub
    //, path: vm.webPath
    }).then(function (result) {
      window.alert(JSON.stringify(result));
    });
  };

  vm.listSites = function () {
    var sites = [];

    return $q.all(Auth.sessions.map(function (session) {

      return Auth.get(session).then(function (oauth3) {
        var pkg = oauth3.pkg('www@daplie.com');

        return pkg.list().then(function (result) {
          var _sites = result.data;

          if (Array.isArray(_sites)) {
            sites = _sites.concat(sites);
            return;
          }

          console.error('_sites is not an array');
          console.error(_sites);
        }, function (err) {
          console.error('_sites had an error');
          console.error(err);
        });
      });
    })).then(function () {
      console.log('[listSites] sites:');
      console.log(sites);
      vm.sites = sites;
    });
  };

  //vm.getDomains();
  Auth.api('domains.list', {}).then(function (els) {
    console.log('[init] domains.list els:');
    console.log(els);
    vm.domains = els;
    $scope.domain = vm.domains;
  });
  vm.listSites();

  vm.triggerDropdown = function() {
    $timeout(function() {
      var el = document.querySelector('.trigger-dropdown');
      angular.element(el).triggerHandler('focus');
    }, 0);
  };

  $scope.$watch('vm.selectedDomain', function (domainSelected) {
    if (domainSelected !== undefined) {
      vm.selectDomain(vm.selectedDomain.description);
    }
  });

  $scope.localDomainSearch = function(str, domain) {
    var matches = [];
    domain.forEach(function(domain) {
      if ((domain.domain.toLowerCase().indexOf(str.toString().toLowerCase()) >= 0)) {
        matches.push(domain);
      }
    });
    return matches;
  };
}]);