{ inputs, self, ... }:

let
  allVmIds = builtins.genList (x: 100 + x) 156; # 100 -- 255
  makeInstallerIso = import ../infra/makeInstallerIso.nix;

in
{
  flake.nixosConfigurations.provisioning =
    let
      inherit (builtins) map listToAttrs;
      makeProvisioningConfiguration =
        vmid:
        inputs.nixpkgs.lib.nixosSystem {
          modules = [
            { procolix.vmid = vmid; }
            ./procolixVm.nix
            inputs.disko.nixosModules.default
          ];
        };
    in
    listToAttrs (
      map (vmid: {
        name = "fedi${toString vmid}";
        value = makeProvisioningConfiguration vmid;
      }) allVmIds
    );

  flake.isoInstallers.provisioning =
    let
      inherit (builtins) mapAttrs;
    in
    mapAttrs (
      vmname: nixosConfiguration:
      makeInstallerIso {
        inherit (inputs) nixpkgs;
        inherit nixosConfiguration;
        hostKeys = {
          ed25519 = {
            private = ./hostKeys/${vmname}/ssh_host_ed25519_key;
            public = ./hostKeys/${vmname}/ssh_host_ed25519_key.pub;
          };
        };
      }
    ) self.nixosConfigurations.provisioning;

  nixops4Deployments.feditest =
    { providers, ... }:

    let
      inherit (builtins) readFile;

      makeProcolixVmResource = vmid: vmconfig: {
        type = providers.local.exec;
        imports = [ inputs.nixops4-nixos.modules.nixops4Resource.nixos ];

        ssh = {
          host = "95.215.187.${toString vmid}";
          hostPublicKey = readFile ./hostKeys/fedi${toString vmid}/ssh_host_ed25519_key.pub;
        };

        nixpkgs = inputs.nixpkgs;
        nixos.module = {
          imports = [
            vmconfig
            { procolix.vmid = vmid; }
            ./procolixVm.nix
            self.nixosModules.fediversity
            inputs.disko.nixosModules.default
          ];
        };
      };

      ## NOTE: All of these secrets are publicly available in this source file
      ## and will end up in the Nix store. We don't care as they are only ever
      ## used for testing anyway.
      pixelfedS3KeyConfig =
        { pkgs, ... }:
        {
          s3AccessKeyFile = pkgs.writeText "s3AccessKey" "GKb5615457d44214411e673b7b";
          s3SecretKeyFile = pkgs.writeText "s3SecretKey" "5be6799a88ca9b9d813d1a806b64f15efa49482dbe15339ddfaf7f19cf434987";
        };
      mastodonS3KeyConfig =
        { pkgs, ... }:
        {
          s3AccessKeyFile = pkgs.writeText "s3AccessKey" "GK3515373e4c851ebaad366558";
          s3SecretKeyFile = pkgs.writeText "s3SecretKey" "7d37d093435a41f2aab8f13c19ba067d9776c90215f56614adad6ece597dbb34";
        };
      peertubeS3KeyConfig =
        { pkgs, ... }:
        {
          s3AccessKeyFile = pkgs.writeText "s3AccessKey" "GK1f9feea9960f6f95ff404c9b";
          s3SecretKeyFile = pkgs.writeText "s3SecretKey" "7295c4201966a02c2c3d25b5cea4a5ff782966a2415e3a196f91924631191395";
        };

    in
    {
      providers = { inherit (inputs.nixops4.modules.nixops4Provider) local; };

      resources = {
        fedi100 = makeProcolixVmResource 100 (
          { pkgs, ... }:
          {
            fediversity = {
              domain = "abundos.eu";
              garage.enable = true;
              pixelfed = pixelfedS3KeyConfig { inherit pkgs; };
              mastodon = mastodonS3KeyConfig { inherit pkgs; };
              peertube = peertubeS3KeyConfig { inherit pkgs; };
            };
          }
        );

        fedi101 = makeProcolixVmResource 101 (
          { pkgs, ... }:
          {
            fediversity = {
              domain = "abundos.eu";
              pixelfed = pixelfedS3KeyConfig { inherit pkgs; } // {
                enable = true;
              };
            };
          }
        );

        fedi102 = makeProcolixVmResource 102 (
          { pkgs, ... }:
          {
            fediversity = {
              domain = "abundos.eu";
              mastodon = mastodonS3KeyConfig { inherit pkgs; } // {
                enable = true;
              };

              temp.cores = 1; # FIXME: should come from NixOps4 eventually
            };
          }
        );

        fedi103 = makeProcolixVmResource 103 (
          { pkgs, ... }:
          {
            fediversity = {
              domain = "abundos.eu";
              peertube = peertubeS3KeyConfig { inherit pkgs; } // {
                enable = true;
                ## NOTE: Only ever used for testing anyway.
                secretsFile = pkgs.writeText "secret" "574e093907d1157ac0f8e760a6deb1035402003af5763135bae9cbd6abe32b24";
              };
            };
          }
        );
      };
    };
}