{ pkgs, ... }:

let
  anubisBotsMirror = pkgs.writeText "anubis_bots_mirror.yaml"
    ''
      - name: whitelist-crans
        action: ALLOW
        remote_addresses:
          - 185.230.79.0/22
          - 2a0c:700::/32
          - 46.105.102.188/32
          - 2001:41d0:2:d5bc::/128

      - name: no-user-agent-string
        action: DENY
        expression: userAgent == ""

      - name: ban-gpt
        user_agent_regex: ".*gpt.*"
        action: DENY

      - name: ban-bot
        user_agent_regex: ".*(b|B)ot.*"
        action: DENY

      - name: ban-WebKit
        action: DENY
        expression:
          all:
            - userAgent.startsWith("Mozilla")
            - userAgent.matches("AppleWebKit")
            - userAgent.matches("Safari")
            - userAgent.matches("Chrome")

      - name: ban-Barkrowler
        user_agent_regex: ".*Barkrowler.*"
        action: DENY
    '';
  anubisMirror = pkgs.writeText "anubis_mirror.json"
    ''
      {
        "bots": [
          {
            "import": "${anubisBotsMirror}"
          },
          {
            "name": "allow-repo",
            "path_regex": "^...*",
            "action": "ALLOW"
          },
          {
            "name": "deny-other",
            "path_regex": ".*",
            "action": "ALLOW"
          }
        ]
      }
    '';
  antibot = pkgs.writeText "antibot.yaml"
    ''
      - name: whitelist-crans
        action: ALLOW
        remote_addresses:
          - 185.230.79.0/22
          - 2a0c:700::/32
          - 46.105.102.188/32
          - 2001:41d0:2:d5bc::/128

      - name: no-user-agent-string
        action: DENY
        expression: userAgent == ""

      - name: ban-gpt
        user_agent_regex: ".*gpt.*"
        action: DENY

      - name: ban-bot
        user_agent_regex: ".*(b|B)ot.*"
        action: DENY

      - name: ban-WebKit
        action: CHALLENGE
        expression:
          all:
            - userAgent.startsWith("Mozilla")
            - userAgent.matches("AppleWebKit")
            - userAgent.matches("Safari")
            - userAgent.matches("Chrome")

      - name: ban-Barkrowler
        user_agent_regex: ".*Barkrowler.*"
        action: DENY
    '';
  anubisChallenge = pkgs.writeText "anubis_challenge.json"
    ''
      {
        "bots": [
          {
            "import": "${antibot}"
          },
          {
            "name": "challenge-other",
            "path_regex": "^*",
            "action": "CHALLENGE"
          }
        ]
      }
    '';
  anubisMirrors = pkgs.writeText "anubis_mirrors.json"
    ''
      {
        "bots": [
          {
            "import": "${antibot}"
          },
          {
            "name": "deny-other",
            "path_regex": ".*cdimage-.*",
            "action": "ALLOW"
          },
          {
            "name": "allow-repo",
            "path_regex": "^...*",
            "action": "ALLOW"
          },
          {
            "name": "deny-other",
            "path_regex": ".*",
            "action": "CHALLENGE"
          }
        ]
     }
    '';
in {
  imports = [
    ./hardware-configuration.nix
  ];

  networking.hostName = "reverseproxy";
  boot.loader.grub.devices = [ "/dev/sda" ];

  users.users."nginx".home = "/var/lib/nginx";
  users.users."anubis".extraGroups = [ "nginx" ];

  crans = {
    enable = true;

    networking = {
      id = "51";
      srvNat.enable = true;
      srv = {
        enable = true;
        interface = "ens20";
        ipv4 = "185.230.79.42";
      };
    };

    resticClient.when = "03:42";

    reverseProxy = {
      enable = true;

      virtualHosts = {
        "eclats" = {
          anubisConfig = "${anubisMirrors}";
          target = "172.16.10.104";
        };
        "install-party" = {
          anubisConfig = "${anubisChallenge}";
          target = "/var/www/install-party.crans.org";
          serverAliases = [
            "i-p"
            "adopteunmanchot"
            "adopteunpingouin"
          ];
        };
        "mediawiki" = {
          anubisConfig = "${anubisChallenge}";
          target = "172.16.10.144";
          serverAliases = [
            "mediakiwi"
          ];
        };
        "mirrors" = {
          anubisConfig = "${anubisMirrors}";
          target = "172.16.10.104";
        };
        "mirror" = {
          anubisConfig = "${anubisMirror}";
          httpOnly = true;
          target = "172.16.10.104";
        };
        "perso" = {
          anubisConfig = "${anubisChallenge}";
          target = "172.16.10.31";
          serverAliases = [
            "clubs"
          ];
        };
        "wiki" = {
          anubisConfig = "${anubisChallenge}";
          target = "172.16.10.161";
          serverAliases = [
            "wikipedia"
          ];
        };
      };
    };

    services = {
      acme.enable = true;
    };
  };

  system.stateVersion = "25.05";
}