dotfiles/modules/nixos/guests/opencloud/opencloud0/default.nix

{
  flake,
  pkgs,
  ...
}:
let
  inherit (flake.config.people) user0;
  inherit (flake.config.services) instances;
  serviceCfg = instances.opencloud0;
  hostCfg = instances.web;
  localhost = instances.web.localhost.address1;
  host = serviceCfg.domains.url0;
in
{
  microvm.vms = {
    opencloud = {
      autostart = true;
      restartIfChanged = true;
      config = {
        system.stateVersion = "24.05";
        time.timeZone = "America/Winnipeg";
        users.users.root.openssh.authorizedKeys.keys = flake.config.people.users.${user0}.sshKeys;
        services = {
          opencloud = {
            enable = true;
            url = "https://${host}";
            port = serviceCfg.ports.port0;
            address = localhost;
            stateDir = "/var/lib/${serviceCfg.name}";
            environmentFile = "/run/secrets/env";
          };

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

        networking.firewall.allowedTCPPorts = [
          22 # SSH
          587 # SMTP
          serviceCfg.ports.port0
        ];

        systemd = {
          services = {
            systemd-networkd.wantedBy = [ "multi-user.target" ];
            opencloud = {
              path = [ pkgs.inotify-tools ];
            };
            opencloud-fix-permissions = {
              description = "Fix OpenCloud storage permissions";
              after = [ "opencloud.service" ];
              serviceConfig = {
                Type = "oneshot";
                ExecStart = pkgs.writeShellScript "fix-perms" ''
                  echo "Starting permission fix..."

                  OPENCLOUD_UID=$(id -u opencloud)
                  echo "OpenCloud UID: $OPENCLOUD_UID"

                  find /var/lib/opencloud/storage/users -type f ! -uid "$OPENCLOUD_UID" 2>/dev/null | while read -r file; do
                    echo "Fixing file: $file"
                    chown opencloud:opencloud "$file" 2>/dev/null || true
                  done

                  find /var/lib/opencloud/storage/users -type d ! -uid "$OPENCLOUD_UID" 2>/dev/null | while read -r dir; do
                    echo "Fixing dir: $dir"
                    chown opencloud:opencloud "$dir" 2>/dev/null || true
                  done

                  echo "Permission fix complete"
                '';
                User = "root";
              };
            };
          };
          timers.opencloud-fix-permissions = {
            description = "Periodically fix OpenCloud storage permissions";
            wantedBy = [ "timers.target" ];
            timerConfig = {
              OnBootSec = "30s";
              OnUnitActiveSec = "1min";
              Unit = "opencloud-fix-permissions.service";
            };
          };
          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 = [
            "d ${serviceCfg.varPaths.path0} 0755 ${serviceCfg.name} ${serviceCfg.name} -"
            "z /etc/opencloud 0700 ${serviceCfg.name} ${serviceCfg.name} -"
          ];

        };

        microvm = {
          vcpu = 1;
          mem = 1024 * 1;
          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 = "/var/lib/${serviceCfg.name}";
              proto = "virtiofs";
              source = "${serviceCfg.mntPaths.path0}/data";
              tag = "${serviceCfg.name}_data";
            }
            {
              mountPoint = "/etc/opencloud";
              proto = "virtiofs";
              source = "${serviceCfg.mntPaths.path0}/config";
              tag = "${serviceCfg.name}_config";
            }
            {
              mountPoint = "/run/secrets";
              proto = "virtiofs";
              source = "/run/secrets/${serviceCfg.name}";
              tag = "host_secrets";
            }
          ];
        };
        environment.systemPackages = builtins.attrValues {
          inherit (pkgs)
            inotify-tools
            opencloud
            ;
        };
      };
    };
  };

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

  sops.secrets = {
    "${serviceCfg.name}/env" = {
      owner = "root";
      mode = "0600";
    };
  };

}