{ config, pkgs, lib, fp, ... }:
let
  cfg = config.services.gitea;
in
{
  services.gitea-themes = {
    monokai = pkgs.gitea-theme-monokai;
    earl-grey = pkgs.gitea-theme-earl-grey;
    pitch-black = pkgs.gitea-theme-pitch-black;
    catppuccin = pkgs.gitea-theme-catppuccin;
  };

  services.gitea.settings = {
    ui = {
      DEFAULT_THEME = "gitea-auto";
      REACTIONS = lib.concatStringsSep "," [
        "+1"
        "-1"
        "laugh"
        "confused"
        "heart"
        "hooray"
        "rocket"
        "eyes"
        "100"
        "anger"
        "astonished"
        "no_good"
        "ok_hand"
        "pensive"
        "pizza"
        "point_up"
        "sob"
        "skull"
        "upside_down_face"
        "shrug"
        "huh"
        "bruh"
        "okiedokie"
        "grr"
      ];

      CUSTOM_EMOJIS = lib.concatStringsSep "," [
        "bruh"
        "grr"
        "huh"
        "ohyeah"
      ];
    };
    "ui.meta" = {
      AUTHOR = "Programvareverkstedet";
      DESCRIPTION = "Bokstavelig talt programvareverkstedet";
      KEYWORDS = lib.concatStringsSep "," [
        "git"
        "hackerspace"
        "nix"
        "open source"
        "foss"
        "organization"
        "software"
        "student"
      ];
    };
  };

  systemd.services.gitea-customization = lib.mkIf cfg.enable {
    description = "Install extra customization in gitea's CUSTOM_DIR";
    wantedBy = [ "gitea.service" ];
    requiredBy = [ "gitea.service" ];

    serviceConfig =  {
      Type = "oneshot";
      User = cfg.user;
      Group = cfg.group;

      ExecStart = let
        logo-svg = fp /assets/logo_blue_regular.svg;
        logo-png = fp /assets/logo_blue_regular.png;

        extraLinks = pkgs.writeText "gitea-extra-links.tmpl" ''
          <a class="item" href="https://git.pvv.ntnu.no/Drift/-/projects/4">Tokyo Drift Issues</a>
        '';

        extraLinksFooter = pkgs.writeText "gitea-extra-links-footer.tmpl" ''
          <a class="item" href="https://www.pvv.ntnu.no/">PVV</a>
          <a class="item" href="https://wiki.pvv.ntnu.no/">Wiki</a>
          <a class="item" href="https://wiki.pvv.ntnu.no/wiki/Tjenester/Kodelager">PVV Gitea Howto</a>
        '';

        project-labels = (pkgs.formats.yaml { }).generate "gitea-project-labels.yaml" {
          labels = lib.importJSON ./labels/projects.json;
        };

        customTemplates = pkgs.runCommandLocal "gitea-templates" {
          nativeBuildInputs = with pkgs; [
            coreutils
            gnused
          ];
        } ''
          # Bigger icons
          install -Dm444 '${cfg.package.src}/templates/repo/icon.tmpl' "$out/repo/icon.tmpl"
          sed -i -e 's/24/60/g' "$out/repo/icon.tmpl"
        '';
        install = lib.getExe' pkgs.coreutils "install";
      in [
        "${install} -Dm444 '${logo-svg}' '${cfg.customDir}/public/assets/img/logo.svg'"
        "${install} -Dm444 '${logo-png}' '${cfg.customDir}/public/assets/img/logo.png'"
        "${install} -Dm444 '${./loading.apng}' '${cfg.customDir}/public/assets/img/loading.png'"
        "${install} -Dm444 '${extraLinks}' '${cfg.customDir}/templates/custom/extra_links.tmpl'"
        "${install} -Dm444 '${extraLinksFooter}' '${cfg.customDir}/templates/custom/extra_links_footer.tmpl'"
        "${install} -Dm444 '${project-labels}' '${cfg.customDir}/options/label/project-labels.yaml'"

        "${install} -Dm644 '${./emotes/bruh.png}' '${cfg.customDir}/public/assets/img/emoji/bruh.png'"
        "${install} -Dm644 '${./emotes/huh.gif}' '${cfg.customDir}/public/assets/img/emoji/huh.png'"
        "${install} -Dm644 '${./emotes/grr.png}' '${cfg.customDir}/public/assets/img/emoji/grr.png'"
        "${install} -Dm644 '${./emotes/okiedokie.jpg}' '${cfg.customDir}/public/assets/img/emoji/okiedokie.png'"

        "${lib.getExe pkgs.rsync} -a '${customTemplates}/' '${cfg.customDir}/templates/'"
      ];
    };
  };
}