import ../make-test.nix ({ pkgs, ... }: {
  name = "ejabberd";
  meta = with pkgs.stdenv.lib.maintainers; {
    maintainers = [ ajs124 ];
  };
  nodes = {
    client = { nodes, pkgs, ... }: {
      environment.systemPackages = [
        (pkgs.callPackage ./xmpp-sendmessage.nix { connectTo = nodes.server.config.networking.primaryIPAddress; })
      ];
    };
    server = { config, pkgs, ... }: {
      networking.extraHosts = ''
        ${config.networking.primaryIPAddress} example.com
      '';

      services.ejabberd = {
        enable = true;
        configFile = "/etc/ejabberd.yml";
      };

      environment.etc."ejabberd.yml" = {
        user = "ejabberd";
        mode = "0600";
        text = ''
          loglevel: 3

          hosts:
            - "example.com"

          listen:
            -
              port: 5222
              module: ejabberd_c2s
              zlib: false
              max_stanza_size: 65536
              shaper: c2s_shaper
              access: c2s
            -
              port: 5269
              ip: "::"
              module: ejabberd_s2s_in
            -
              port: 5347
              ip: "127.0.0.1"
              module: ejabberd_service
              access: local
              shaper: fast

          ## Disabling digest-md5 SASL authentication. digest-md5 requires plain-text
          ## password storage (see auth_password_format option).
          disable_sasl_mechanisms: "digest-md5"

          ## Outgoing S2S options
          ## Preferred address families (which to try first) and connect timeout
          ## in seconds.
          outgoing_s2s_families:
             - ipv4
             - ipv6

          ## auth_method: Method used to authenticate the users.
          ## The default method is the internal.
          ## If you want to use a different method,
          ## comment this line and enable the correct ones.
          auth_method: internal

          ## Store the plain passwords or hashed for SCRAM:
          ## auth_password_format: plain
          auth_password_format: scram

          ###'  TRAFFIC SHAPERS
          shaper:
            # in B/s
            normal: 1000000
            fast: 50000000

          ## This option specifies the maximum number of elements in the queue
          ## of the FSM. Refer to the documentation for details.
          max_fsm_queue: 1000

          ###'   ACCESS CONTROL LISTS
          acl:
            ## The 'admin' ACL grants administrative privileges to XMPP accounts.
            ## You can put here as many accounts as you want.
            admin:
               user:
                 - "root": "example.com"

            ## Local users: don't modify this.
            local:
              user_regexp: ""

            ## Loopback network
            loopback:
              ip:
                - "127.0.0.0/8"
                - "::1/128"
                - "::FFFF:127.0.0.1/128"

          ###'  SHAPER RULES
          shaper_rules:
            ## Maximum number of simultaneous sessions allowed for a single user:
            max_user_sessions: 10
            ## Maximum number of offline messages that users can have:
            max_user_offline_messages:
              - 5000: admin
              - 1024
            ## For C2S connections, all users except admins use the "normal" shaper
            c2s_shaper:
              - none: admin
              - normal
            ## All S2S connections use the "fast" shaper
            s2s_shaper: fast

          ###'  ACCESS RULES
          access_rules:
            ## This rule allows access only for local users:
            local:
              - allow: local
            ## Only non-blocked users can use c2s connections:
            c2s:
              - deny: blocked
              - allow
            ## Only admins can send announcement messages:
            announce:
              - allow: admin
            ## Only admins can use the configuration interface:
            configure:
              - allow: admin
            ## Only accounts of the local ejabberd server can create rooms:
            muc_create:
              - allow: local
            ## Only accounts on the local ejabberd server can create Pubsub nodes:
            pubsub_createnode:
              - allow: local
            ## In-band registration allows registration of any possible username.
            ## To disable in-band registration, replace 'allow' with 'deny'.
            register:
              - allow
            ## Only allow to register from localhost
            trusted_network:
              - allow: loopback

          ## ===============
          ## API PERMISSIONS
          ## ===============
          ##
          ## This section allows you to define who and using what method
          ## can execute commands offered by ejabberd.
          ##
          ## By default "console commands" section allow executing all commands
          ## issued using ejabberdctl command, and "admin access" section allows
          ## users in admin acl that connect from 127.0.0.1 to  execute all
          ## commands except start and stop with any available access method
          ## (ejabberdctl, http-api, xmlrpc depending what is enabled on server).
          ##
          ## If you remove "console commands" there will be one added by
          ## default allowing executing all commands, but if you just change
          ## permissions in it, version from config file will be used instead
          ## of default one.
          ##
          api_permissions:
            "console commands":
              from:
                - ejabberd_ctl
              who: all
              what: "*"

          language: "en"

          ###'  MODULES
          ## Modules enabled in all ejabberd virtual hosts.
          modules:
            mod_adhoc: {}
            mod_announce: # recommends mod_adhoc
              access: announce
            mod_blocking: {} # requires mod_privacy
            mod_caps: {}
            mod_carboncopy: {}
            mod_client_state: {}
            mod_configure: {} # requires mod_adhoc
            ## mod_delegation: {} # for xep0356
            #mod_irc:
            #  host: "irc.@HOST@"
            #  default_encoding: "utf-8"
            ## mod_bosh: {}
            ## mod_http_fileserver:
            ##   docroot: "/var/www"
            ##   accesslog: "/var/log/ejabberd/access.log"
            #mod_http_upload:
            #  thumbnail: false # otherwise needs the identify command from ImageMagick installed
            #  put_url: "https://@HOST@:5444"
            ##   # docroot: "@HOME@/upload"
            #mod_http_upload_quota:
            #  max_days: 14
            mod_last: {}
            ## XEP-0313: Message Archive Management
            ## You might want to setup a SQL backend for MAM because the mnesia database is
            ## limited to 2GB which might be exceeded on large servers
            mod_mam: {}
            mod_muc:
              host: "muc.@HOST@"
              access:
                - allow
              access_admin:
                - allow: admin
              access_create: muc_create
              access_persistent: muc_create
            mod_muc_admin: {}
            mod_muc_log: {}
            mod_offline:
              access_max_user_messages: max_user_offline_messages
            mod_ping: {}
            ## mod_pres_counter:
            ##   count: 5
            ##   interval: 60
            mod_privacy: {}
            mod_private: {}
            mod_roster:
                versioning: true
            mod_shared_roster: {}
            mod_stats: {}
            mod_time: {}
            mod_vcard:
              search: false
            mod_vcard_xupdate: {}
            ## Convert all avatars posted by Android clients from WebP to JPEG
            mod_avatar: {}
            #  convert:
            #    webp: jpeg
            mod_version: {}
            mod_stream_mgmt: {}
            ##   The module for S2S dialback (XEP-0220). Please note that you cannot
            ##   rely solely on dialback if you want to federate with other servers,
            ##   because a lot of servers have dialback disabled and instead rely on
            ##   PKIX authentication. Make sure you have proper certificates installed
            ##   and check your accessibility at https://check.messaging.one/
            mod_s2s_dialback: {}
            mod_pubsub:
              plugins:
                - "pep"
            mod_push: {}
        '';
      };

      networking.firewall.enable = false;
    };
  };

  testScript = { nodes, ... }: ''
    $server->waitForUnit('ejabberd.service');
    $server->succeed('su ejabberd -s $(which ejabberdctl) status|grep started') =~ /ejabberd is running/;
    $server->succeed('su ejabberd -s $(which ejabberdctl) register azurediamond example.com hunter2');
    $server->succeed('su ejabberd -s $(which ejabberdctl) register cthon98 example.com nothunter2');
    $server->fail('su ejabberd -s $(which ejabberdctl) register asdf wrong.domain');
    $client->succeed('send-message');
    $server->succeed('su ejabberd -s $(which ejabberdctl) unregister cthon98 example.com');
    $server->succeed('su ejabberd -s $(which ejabberdctl) unregister azurediamond example.com');
  '';
})