{
  pkgs,
  lib,
  config,
  ...
}:

let
  inherit (lib) concatStringsSep mkOption types;

  mkFzfOptionsString = lines: concatStringsSep " " lines;

  catppuccinFzfOptions = {
    mocha = mkFzfOptionsString [
      "--color=bg+:#313244,bg:#1e1e2e,spinner:#f5e0dc,hl:#f38ba8"
      "--color=fg:#cdd6f4,header:#f38ba8,info:#cba6f7,pointer:#f5e0dc"
      "--color=marker:#b4befe,fg+:#cdd6f4,prompt:#cba6f7,hl+:#f38ba8"
      "--color=selected-bg:#45475a"
      "--multi"
    ];
    latte = mkFzfOptionsString [
      "--color=bg+:#ccd0da,bg:#eff1f5,spinner:#dc8a78,hl:#d20f39"
      "--color=fg:#4c4f69,header:#d20f39,info:#1e66f5,pointer:#dc8a78"
      "--color=marker:#fe640b,fg+:#4c4f69,prompt:#1e66f5,hl+:#d20f39"
      "--color=selected-bg:#acb0be"
      "--multi"
    ];
  };
in
{
  options.fish = {
    theme = mkOption {
      type = types.enum (builtins.attrNames catppuccinFzfOptions);
      default = "mocha";
      description = "Catppuccin theme variant used for Fish integrations such as FZF.";
      example = "latte";
    };
  };

  config = {
    programs.fish = {
      enable = true;
      plugins = [
        {
          name = "z";
          src = pkgs.fetchFromGitHub {
            owner = "jethrokuan";
            repo = "z";
            rev = "e0e1b9dfdba362f8ab1ae8c1afc7ccf62b89f7eb";
            sha256 = "0dbnir6jbwjpjalz14snzd3cgdysgcs3raznsijd6savad3qhijc";
          };
        }
        {
          name = "autopair";
          src = pkgs.fishPlugins.autopair.src;
        }
        {
          name = "foreign-env";
          src = pkgs.fishPlugins.foreign-env.src;
        }
        {
          name = "fzf";
          src = pkgs.fishPlugins.fzf.src;
        }
        {
          name = "done";
          src = pkgs.fishPlugins.done.src;
        }
        {
          name = "grc";
          src = pkgs.fishPlugins.grc.src;
        }
      ];
      shellAbbrs = {
        ls = "eza -l";
        lg = "lazygit";
        ka = "kubectl apply -f";
        e = "nvim";
      };
      interactiveShellInit =
        let
          fzfOpts = catppuccinFzfOptions.${config.fish.theme};
        in
        ''
                               fish_vi_key_bindings
                               set fish_greeting
                               set FLAKE_DIR "/home/fw/nix"
                               set -l host_name (hostname)

                               function load_secret --argument-names env_name preferred_secret fallback_secret
                                 if test -r "/run/secrets/$preferred_secret"
                                   set -gx $env_name (string trim (cat "/run/secrets/$preferred_secret"))
                                 else if test -r "/run/secrets/$fallback_secret"
                                   set -gx $env_name (string trim (cat "/run/secrets/$fallback_secret"))
                                 end
                               end

                               if test -r /run/secrets/jira_token
                                 set -gx JIRA_API_TOKEN (string trim (cat /run/secrets/jira_token))
                               end
                                load_secret GOOGLE_OAUTH_CLIENT_ID "google_oauth_client_id_$host_name" google_oauth_client_id
                                load_secret GOOGLE_OAUTH_CLIENT_SECRET "google_oauth_client_secret_$host_name" google_oauth_client_secret
                                load_secret USER_GOOGLE_EMAIL "user_google_email_$host_name" user_google_email
                                load_secret MSSQL_SERVER "mssql_server_$host_name" mssql_server
                                load_secret MSSQL_DATABASE "mssql_database_$host_name" mssql_database
                                load_secret MSSQL_USER "mssql_user_$host_name" mssql_user
                                load_secret MSSQL_PASSWORD "mssql_password_$host_name" mssql_password
                                 load_secret MSSQL_PORT "mssql_port_$host_name" mssql_port
                                 load_secret MSSQL_ENCRYPT "mssql_encrypt_$host_name" mssql_encrypt
                                 load_secret MSSQL_WINDOWS_AUTH "mssql_windows_auth_$host_name" mssql_windows_auth
                                 load_secret VAULT_ADDR "vault_addr_$host_name" vault_addr
                                 load_secret VAULT_TOKEN "vault_token_$host_name" vault_token
                                 load_secret VAULT_NAMESPACE "vault_namespace_$host_name" vault_namespace
                                 set -gx GITHUB_PERSONAL_ACCESS_TOKEN (cat /run/secrets/github_token)
                                 set -gx GITHUB_HOST "https://github.com"
                                 set -gx GRAFANA_SERVICE_ACCOUNT_TOKEN (cat /run/secrets/grafana_token)
                              set -gx GRAFANA_URL "https://monitoring.internalifacts.se"
                              set -Ux FZF_CTRL_R_OPTS "--reverse"
                              set -Ux FZF_TMUX_OPTS "-p"
                              set -e GOROOT
                    		  set -x -U GOPATH $HOME/.go
                              gh completion -s fish > ~/.config/fish/completions/gh.fish
                               set -gx PATH $PATH $HOME/scripts
                               set -gx PATH $PATH $HOME/.krew/bin
                               set -gx OPENCODE_DEFAULT_PROMPT_FILE "$HOME/.config/opencode/session-prompt.txt"

                                function oc
                                   set -l passthrough_subcommands completion acp mcp attach debug providers auth agent upgrade uninstall serve web models stats export import github pr session plugin plug db

                                 if test (count $argv) -gt 0
                                    if string match -qr '^-' -- "$argv[1]"
                                      command opencode $argv
                                      return $status
                                    end

                                    for arg in $argv
                                      if test "$arg" = "--prompt"
                                        command opencode $argv
                                        return $status
                                      end
                                   end

                                    if contains -- "$argv[1]" $passthrough_subcommands
                                      command opencode $argv
                                      return $status
                                    end
                                  end

                                  if test -r "$OPENCODE_DEFAULT_PROMPT_FILE"
                                    set -l session_prompt (string collect < "$OPENCODE_DEFAULT_PROMPT_FILE")
                                    command opencode --prompt "$session_prompt" $argv
                                  else
                                    command opencode $argv
                                  end
                                end

                                complete -e -c oc
                                complete -c oc -w opencode


                                if not set -q SSH_AUTH_SOCK
                                 eval (ssh-agent -c)
                                 ssh-add ~/.ssh/id_ed25519 >/dev/null 2>&1
          						set SSH_AUTH_SOCK /home/fw/.bitwarden-ssh-agent.sock
                              end

                               set -Ux FZF_DEFAULT_OPTS "${fzfOpts}"
                               functions -e load_secret
        '';
    };
  };
}