{ config, inputs, lib, pkgs, ... }: {
  imports = [
    inputs.florp-moderation.nixosModules.default
    # Moderated instances. See https://woof.rip/florp/moderation for more information.
    inputs.florp-moderation.nixosModules.florp
  ];
  sops.secrets."services/akkoma/mailerPassword" = {
    sopsFile = ../../../secrets/services/akkoma.yaml;
  };
  sops.secrets."services/akkoma/deepl" = {
    sopsFile = ../../../secrets/services/akkoma.yaml;
  };

  services.akkoma = {
    enable = true;
    extraPackages = let
      imagemagick = pkgs.imagemagick.override {
        libheif = pkgs.libheif.overrideAttrs (prevAttrs: {
          buildInputs = prevAttrs.buildInputs or [ ] ++ [ pkgs.svt-av1 ];
          cmakeFlags = prevAttrs.cmakeFlags or [ ] ++ [ "-DWITH_SvtEnc=ON" ];
        });
      };
    in with pkgs; [ exiftool ffmpeg-headless imagemagick ];

    extraStatic = let
      actualFetchzip =
      {
        url,
        hash
      }: pkgs.runCommandNoCC "${lib.last (lib.splitString "/" url)}" {
        src = pkgs.fetchurl {
          inherit url hash;
        };
      } ''
        ${lib.getExe pkgs.unzip} $src -d $out
        for f in $out/*_256.png; do
          mv -- "$f" "''${f/_256}"
        done
      '';
    in {
      "emoji/blobs.gg" = pkgs.akkoma-emoji.blobs_gg;

      "emoji/custom" = pkgs.runCommandNoCC "florp" {
        src = inputs.florp-branding.packages.${config.nixpkgs.hostPlatform.system}.favicon;
      } ''
        mkdir $out
        cp $src $out/florp.png
      '';

      "emoji/neodog" = actualFetchzip {
        url = "https://git.gay/moonrabbits/neodog/raw/commit/6f9eb283b6dcbe507fde1110abab267cb2d73b70/neodog.zip";
        hash = "sha256-ISyzpRyjHf+4jKrOtHHqH0Qn7CQu5RQSLH/HL/YSdT4=";
      };

      "emoji/neocat" = actualFetchzip {
        url = "https://volpeon.ink/emojis/neocat/neocat.zip";
        hash = "sha256-DZDuk0Djlax504flNWdpqAw+ROLOOVGj0ZvJLyouo7A=";
      };

      "emoji/neofox" = actualFetchzip {
        url = "https://volpeon.ink/emojis/neofox/neofox.zip";
        hash = "sha256-rZUPA7ZvrO8q/lx8XK3IxJ1URLgq0PSh752eWzG+uos=";
      };

      "static/styles.json" = pkgs.writeText "styles.json" (builtins.toJSON (
        builtins.fromJSON (builtins.readFile "${pkgs.akkoma-fe-domi}/static/styles.json") // {
          elly-mod = "/static/themes/elly-mod.json";
        }
      ));

      "static/themes/elly-mod.json" = pkgs.writeText "elly-mod.json" (builtins.readFile ./elly-mod.json);

      "static/custom.css" = pkgs.writeText "custom.css" ''
        .tos-content img, .terms-of-service img {
          max-width: 100%;
        }
      '';

      "static/terms-of-service.html" = inputs.florp-about.packages.${pkgs.system}.default;
      "images/sylvia-ritter-15012323.avif" = inputs.florp-branding.packages.${pkgs.system}.wallpaper;
      "images/florp_banner.avif" = inputs.florp-branding.packages.${pkgs.system}.banner;
      "favicon.png" = inputs.florp-branding.packages.${pkgs.system}.favicon;
    };

    frontends = {
      primary = {
        package = pkgs.akkoma-fe-domi;
        name = "akkoma-fe";
        ref = "5f0339ce00";
      };
      admin = {
        package = pkgs.akkoma-admin-fe;
        name = "admin-fe";
        ref = "stable";
      };
    };
  };
  services.akkoma.config = let
    inherit ((pkgs.formats.elixirConf { }).lib) mkRaw mkAtom;

    mkMapOfPredefinedKeys = set: let
      string = value: "\"${(lib.escape [ "\\" "#" "\"" ]) value}\"";

      toElixir = value: 
        if value == null then "nil" else
        if lib.isString value then string value else
        if builtins.isBool value then lib.boolToString value else
        if lib.isInt value || lib.isFloat value then toString value else
        abort "Not a elixir value ${value}";

      entries = attrs: lib.concatStringsSep ", " (lib.mapAttrsToList (name: value:
        "${toElixir name}: ${toElixir value}"
      ) attrs);
    in mkRaw "%{${entries set}}";

  in {
    ":pleroma" = {
      ":instance" = {
        name = "florp.social";
        email = "contact@florp.social";
        notify_email = "noreply@florp.social";
        description = "Likes are now florps. The timeline goes sideways.";
        instance_thumbnail = "/instance/thumbnail.avif";
        limit = 69420;
        description_limit = 69420;
        remote_limit = 131072;
        upload_limit = 256 * 1024 * 1024;
        avatar_upload_limit = 4 * 1024 * 1024;
        background_upload_limit = 8 * 1024 * 1024;
        banner_upload_limit = 8 * 1024 * 1024;
        registrations_open = true;
        registration_reason_length = 2048;
        account_approval_required = true;
        account_activation_required = true;
        federating = true;
        federation_incoming_replies_max_depth = 1024;
        federation_reachability_timeout_days = 14;
        allow_relay = true;
        max_pinned_statuses = 10;
        max_report_comment_size = 2048;
        safe_dm_mentions = true;
        remote_post_retention_days = 365;
        user_bio_length = 8192;
        user_name_length = 64;
        cleanup_attachments = true;
        local_bubble = [
          "solitary.social"
          "donotsta.re"
          "chaos.social"
        ];
      };

      ":emoji".groups = {
        blobs = "/emoji/blobs.gg/*.png";
        neodog = "/emoji/neodog/*.png";
        neocat = [
          "/emoji/neocat/*.png"
          "/emoji/neodog/additional_neocat/*.png"
        ];
        neofox = [
          "/emoji/neofox/*.png"
          "/emoji/neodog/additional_neofox/*.png"
        ];
        Custom = "/emoji/custom/*.png";
      };

      "Pleroma.Captcha".method = mkRaw "Pleroma.Captcha.Kocaptcha";

      "Pleroma.Web.Endpoint".url.host = "florp.social";

      "Pleroma.Web.Metadata.Providers.Theme".theme_color = "#070F1C";

      "Pleroma.Emails.Mailer" = {
        enabled = true;
        adapter = mkRaw "Swoosh.Adapters.SMTP";
        relay = "mail.kyouma.net";
        username = "noreply@florp.social";
        password._secret = config.sops.secrets."services/akkoma/mailerPassword".path;
        port = 465;
        ssl = true;
        auth = mkRaw ":always";
      };

      ":database".rum_enabled = true;

      ":media_proxy" = {
        enabled = true;
        base_url = "https://cache.florp.social";
        proxy_opts.redirect_on_failure = true;
        proxy_opts.max_body_length = 64 * 1024 * 1024;
      };

      ":media_preview_proxy" = {
        enabled = true;
        thumbnail_max_width = 1920;
        thumbnail_max_height = 1080;
        min_content_length = 128 * 1024;
      };

      "Pleroma.Upload".base_url = "https://media.florp.social";

      "Pleroma.Upload".filters = map mkRaw [
        "Pleroma.Upload.Filter.Exiftool.ReadDescription"
        "Pleroma.Upload.Filter.Exiftool.StripMetadata"
        "Pleroma.Upload.Filter.Dedupe"
        "Pleroma.Upload.Filter.AnonymizeFilename"
      ];

      ":mrf".policies = map mkRaw [
        "Pleroma.Web.ActivityPub.MRF.MediaProxyWarmingPolicy"
      ];

      ":mrf_object_age".threshold = 180 * 24 * 3600;

      ":frontend_configurations" = {
        pleroma_fe = mkMapOfPredefinedKeys {
          background = "/images/sylvia-ritter-15012323.avif";
          nsfwCensorImage = "/static/blurhash-overlay.png";
          collapseMessageWithSubject = true;
          streaming = true;
          webPushNotifications = true;
          useStreamingApi = true;
          scopeCopy = true;
          subjectLineBehavior = "masto";
          alwaysShowSubjectInput = true;
          postContentType = "text/markdown";
          modalOnRepeat = true;
          minimalScopesMode = true;
          redirectRootNoLogin = "/about";
          translationLanguage = "en";
          theme = "elly-mod";
        };
      };

      ":restrict_unauthenticated" = {
        timelines = mkMapOfPredefinedKeys {
          local = false;
          federated = false;
          bubble = true;
        };
      };

      ":translator" = {
        enabled = true;
        module = mkRaw "Pleroma.Akkoma.Translators.DeepL";
      };

      ":deepl" = {
        tier = mkAtom ":free";
        api_key._secret = config.sops.secrets."services/akkoma/deepl".path;
      };
    };

    ":web_push_encryption".":vapid_details" = {
      subject = "mailto:contact@florp.social";
    };

    ":joken".":default_signer"._secret = "/var/lib/secrets/akkoma/jwt-signer";
  };
  services.postgresql.enable = true;
  services.postgresql.extraPlugins = [
    pkgs.postgresql16Packages.rum
  ];
  services.nginx = {
    clientMaxBodySize = "256m";
    commonHttpConfig = ''
      access_log off;

      proxy_cache_path /var/cache/nginx/akkoma-media-cache
        levels= keys_zone=akkoma_media_cache:64m max_size=64g
        inactive=1y use_temp_path=off;
    '';
  };
  kyouma.nginx.virtualHosts = let
    proxyCache = ''
      proxy_cache akkoma_media_cache;

      # Cache objects in slices of 1 MiB
      slice 1m;
      proxy_cache_key $host$uri$is_args$args$slice_range;
      proxy_set_header Range $slice_range;

      # Decouple proxy and upstream responses
      proxy_buffering on;
      proxy_cache_lock on;
      proxy_ignore_client_abort on;

      # Default cache times for various responses
      proxy_cache_valid 200 1y;
      proxy_cache_valid 206 301 304 1h;

      # Allow serving of stale items
      proxy_cache_use_stale error timeout invalid_header updating;
    '';
  in {
    "florp.social" = {
      serverAliases = map (x: "${x}.florp.social") [ "a" "b" "c" ];
      locations."/" = {
        proxyPass = "http://unix:/run/akkoma/socket";
        proxyWebsockets = true;
      };
      locations."^/media(/.*)$".return = "308 https://media.florp.social$1";
      locations."^/proxy(/.*)$".return = "308 https://cache.florp.social$1";
      locations."= /api/v1/pleroma/admin/config" = {
        return = ''200 "\{\"error\":\"You must enable configurable_from_database in your config file.\"\}"'';
        extraConfig = ''
          types { } default_type "application/json; charset=utf-8";
        '';
      };
    };

    "media.florp.social" = {
      useACMEHost = "florp.social";
      locations."/" = {
        proxyPass = "http://unix:/run/akkoma/socket";
        extraConfig = ''
          rewrite ^(?!/media)(.*)$ /media$1;
        '' + proxyCache;
      };
    };
    
    "cache.florp.social" = {
      useACMEHost = "florp.social";
      locations."/" = {
        proxyPass = "http://unix:/run/akkoma/socket";
        extraConfig = ''
          rewrite ^(?!/proxy)(.*)$ /proxy$1;
        '' + proxyCache;
      };
    };
  };
  security.acme.certs."florp.social".extraDomainNames = [
    "cache.florp.social"
    "media.florp.social"
  ] ++ map (x: "${x}.florp.social") [ "a" "b" "c" ];
}