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/${dns0}";
in
{
  microvm.vms.jellyfin = {
    autostart = true;
    restartIfChanged = true;
    config = {
      system.stateVersion = "25.05";
      time.timeZone = "America/Winnipeg";
      users.users.root.openssh.authorizedKeys.keys = flake.config.people.users.${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
      ];

      # fileSystems."/tmp" = {
      #   device = "tmpfs";
      #   fsType = "tmpfs";
      #   options = [
      #     "size=4G"
      #     "mode=1777"
      #   ];
      # };

      systemd = {
        network = {
          enable = true;
          networks."20-lan" = {
            matchConfig.Name = "enp0s6";
            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"
            ];
          };
        };

        tmpfiles.rules = [
          "Z ${serviceCfg.varPaths.path0} 0755 ${serviceCfg.name} ${serviceCfg.name} -"
          "Z ${serviceCfg.varPaths.path2} 0755 ${serviceCfg.name} ${serviceCfg.name} -"
          "d ${serviceCfg.varPaths.path1} 0755 ${serviceCfg.name} ${serviceCfg.name} -"
          "Z ${serviceCfg.varPaths.path2} 0755 ${serviceCfg.name} ${serviceCfg.name} -"
        ];
      };

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

      microvm = {
        vcpu = 6;
        mem = 8192;
        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 = "${serviceCfg.mntPaths.path0}/data";
            tag = "${serviceCfg.name}_data";
          }
          {
            mountPoint = serviceCfg.varPaths.path1;
            proto = "virtiofs";
            source = "${serviceCfg.mntPaths.path0}/cache";
            tag = "${serviceCfg.name}_cache";
          }
          {
            mountPoint = serviceCfg.varPaths.path2;
            proto = "virtiofs";
            source = "${serviceCfg.mntPaths.path0}/media";
            tag = "${serviceCfg.name}_media";
          }
        ];
      };
    };
  };

  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}
            }

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

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

  systemd.tmpfiles.rules = [
    "d ${serviceCfg.mntPaths.path0} 0751 microvm wheel - -"
    "d ${serviceCfg.mntPaths.path0}/data 0751 microvm wheel - -"
    "d ${serviceCfg.mntPaths.path0}/cache 0751 microvm wheel - -"
    "d ${serviceCfg.mntPaths.path0}/media 0751 microvm wheel - -"
  ];
}