'use strict';
(function() {
  var weechat = angular.module('weechat');
  var names = 'addresses proxy ipv6 ssl ssl_cert ssl_password ssl_priorities ssl_dhkey_size ssl_fingerprint ssl_verify password capabilities sasl_mechanism sasl_username sasl_password sasl_key sasl_timeout sasl_fail autoconnect autoreconnect autoreconnect_delay nicks nicks_alternate username realname local_hostname usermode command command_delay autojoin autojoin_dynamic autorejoin autorejoin_delay connection_timeout anti_flood_prio_high anti_flood_prio_low away_check away_check_max_nicks msg_kick msg_part msg_quit notify split_msg_max_length charset_message default_chantypes'.split(' ');
  var secrets = {ssl_password: true, password: true, sasl_password: true};
  var booleans = {ipv6:true,ssl:true,ssl_verify:true,autoconnect:true,autoreconnect:true,nicks_alternate:true,autojoin_dynamic:true,autorejoin:true};

  weechat.directive('neoServerManager', ['connection', function(connection) {
    return {restrict: 'E', templateUrl: 'directives/server-manager.html', link: function(scope) {
      scope.serverManager = {visible:false, loading:false, saving:false, servers:[], selected:null, isNew:false, status:''};
      var manager = scope.serverManager;
      function validName(value) { return /^[A-Za-z0-9][A-Za-z0-9_-]{0,31}$/.test(value || ''); }
      function safeValue(value) { return typeof value === 'string' && !/[\r\n\0"]/.test(value); }
      function optionModel(name, row) { return {name:name, description:row&&row.description||'', value:row&&row.value_is_null?String(row.parent_value||''):String(row&&row.value||''), inherited:Boolean(row&&row.value_is_null), secret:Boolean(secrets[name]), boolean:Boolean(booleans[name]), dirty:false}; }
      function refresh() {
        manager.loading = true;
        return connection.requestInfolist('option', 0, 'irc.server.*.addresses').then(function(rows) {
          manager.servers = rows.map(function(row) { return row.full_name.slice(11, -10); }).filter(validName).sort();
          manager.loading = false;
        }, function() { manager.loading=false; manager.status='Unable to load server settings.'; });
      }
      function select(name) {
        manager.isNew = false; manager.loading = true; manager.status = '';
        Promise.all(names.map(function(option) {
          if (secrets[option]) return Promise.resolve(optionModel(option, null));
          return connection.requestInfolist('option', 0, 'irc.server.' + name + '.' + option).then(function(rows) { return optionModel(option, rows[0]); });
        })).then(function(options) { scope.$applyAsync(function() { manager.selected={name:name, originalName:name, options:options}; manager.loading=false; }); });
      }
      scope.newNeoServer = function() { manager.isNew=true; manager.selected={name:'',originalName:'',options:names.map(function(name){return optionModel(name,null);})}; manager.selected.options[0].inherited=false; manager.status=''; };
      scope.selectNeoServer = select;
      scope.closeNeoServerManager = function() { manager.visible=false; manager.selected=null; };
      scope.saveNeoServer = function(connectAfter) {
        var server=manager.selected; if(!server||!validName(server.name)){manager.status='Use a safe server name.';return;}
        var addresses=server.options[0].value; if(manager.isNew&&!safeValue(addresses)){manager.status='Enter a safe server address.';return;}
        manager.saving=true;
        if(manager.isNew) connection.sendCoreCommand('/server add '+server.name+' '+addresses);
        server.options.forEach(function(option) {
          if ((!manager.isNew&&!option.dirty)||(manager.isNew&&option.name==='addresses')||option.secret&&!option.value) return;
          if (!safeValue(option.value)){manager.status='Values cannot contain quotes or control characters.';return;}
          var full='irc.server.'+server.name+'.'+option.name;
          if (option.secret) {
            var secureKey='neobear_'+server.name.toLowerCase()+'_'+option.name;
            connection.sendCoreCommand('/secure set '+secureKey+' '+option.value);
            connection.sendCoreCommand('/set '+full+' "${sec.data.'+secureKey+'}"');
          } else {
            connection.sendCoreCommand(option.inherited?'/unset '+full:'/set '+full+' "'+option.value+'"');
          }
        });
        connection.sendCoreCommand('/save irc');
        if(connectAfter) connection.sendCoreCommand('/connect '+server.name);
        manager.status='Changes sent to WeeChat. Check the core buffer for any rejected setting.'; manager.saving=false; refresh();
      };
      scope.$on('neoServerManagerOpen', function(event, name) { manager.visible=true; refresh().then(function(){ if(name) select(name); else scope.$applyAsync(scope.newNeoServer); }); });
    }};
  }]);
}());