dotfiles/modules/nixos/services/jellyfin/default.nix

{
  config,
  flake,
  ...
}:
let
  inherit (flake.config.people) user0;
  inherit (flake.config.services) instances;
  serviceCfg = instances.jellyfin;
  hostCfg = instances.web;
  dns0 = instances.web.dns.provider0;
  host = serviceCfg.domains.url0;
  dns0Path = "dns/${dns0}";
in
{
  microvm.vms.jellyin = {
    autostart = true;
    restartIfChanged = true;
    config = {
      system.stateVersion = "24.05";
      time.timeZone = "America/Winnipeg";
      users.users.root.openssh.authorizedKeys.keys = flake.config.people.users.${user0}.sshKeys;
      services = {
        jellyfin = {
          enable = true;
          openFirewall = true;
        };

        openssh = {
          enable = true;
          settings = {
            PasswordAuthentication = false;
            PermitRootLogin = "prohibit-password";
          };
        };
      };

      networking.firewall.allowedTCPPorts = [
        22
        serviceCfg.ports.port0
        serviceCfg.ports.port1
        serviceCfg.ports.port2
      ];

      systemd.network = {
        enable = true;
        networks."20-lan" = {
          matchConfig.Name = "enp0s5";
          addresses = [
            { Address = "${serviceCfg.interface.ip}/24"; }
          ];
          routes = [
            {
              Destination = "${hostCfg.localhost.address1}/0";
              Gateway = serviceCfg.interface.gate;
            }
          ];
          dns = [
            "1.1.1.1"
            "8.8.8.8"
          ];
        };
      };

      systemd.services.systemd-networkd.wantedBy = [ "multi-user.target" ];

      microvm = {
        vcpu = 4;
        mem = 4096;
        hypervisor = "qemu";
        interfaces = [
          {
            type = "tap";
            id = serviceCfg.interface.id;
            mac = serviceCfg.interface.mac;
          }
          {
            type = "user";
            id = serviceCfg.interface.idUser;
            mac = serviceCfg.interface.macUser;
          }
        ];

        forwardPorts = [
          {
            from = "host";
            host.port = serviceCfg.interface.ssh;
            guest.port = 22;
          }
        ];

        shares = [
          {
            mountPoint = "/nix/.ro-store";
            proto = "virtiofs";
            source = "/nix/store";
            tag = "read_only_nix_store";
          }
          {
            mountPoint = serviceCfg.varPaths.path0;
            proto = "virtiofs";
            source = serviceCfg.mntPaths.path0;
            tag = "${serviceCfg.name}_data";
          }
          {
            mountPoint = serviceCfg.varPaths.path1;
            proto = "virtiofs";
            source = "${serviceCfg.mntPaths.path0}/cache";
            tag = "${serviceCfg.name}_cache";
          }
        ];
      };
    };
  };

  security.acme.certs."${host}" = {
    dnsProvider = dns0;
    environmentFile = config.sops.secrets.${dns0Path}.path;
    group = "caddy";
  };

  services = {
    caddy = {
      virtualHosts = {
        "${host}" = {
          extraConfig = ''
            reverse_proxy ${serviceCfg.interface.ip}:${toString serviceCfg.ports.port0} {
              header_up X-Real-IP {remote_host}
            }

            redir /.well-known/carddav /remote.php/dav/ 301
            redir /.well-known/caldav /remote.php/dav/ 301

            tls ${serviceCfg.ssl.cert} ${serviceCfg.ssl.key}
            encode zstd gzip
          '';
        };
      };
    };
  };

  users.users.caddy.extraGroups = [ "acme" ];

  systemd.tmpfiles.rules = [
    "d ${serviceCfg.mntPaths.path0} 0755 root root -"
    "d ${serviceCfg.mntPaths.path0}/cache 0755 root root -"
  ];

}