{
  lib,
  config,
  ...
}:
let
  inherit (lib) mkIf mkDefault concatStrings;

  cfg = config.marleyos.programs.starship;
  inherit (config.marleyos.theme) colors;
in
{
  config = mkIf (cfg.enable && colors.isRosePine) {
    programs.starship.settings =
      let
        mkFormat = t: " [](fg:overlay)[${t}]($style)[](fg:overlay) ";
        langFormat = mkFormat "$symbol$version";
      in
      {
        format = mkDefault (concatStrings [
          "$username"
          "$directory"
          "$nix_shell"
          "$git_branch"
          "$git_status"
          "$fill"
          "$c"
          "$elixir"
          "$elm"
          "$golang"
          "$haskell"
          "$java"
          "$julia"
          "$nodejs"
          "$nim"
          "$rust"
          "$scala"
          "$python"
          "$time"
          "$line_break"
          "$character"
        ]);

        # TODO: Make the palette available from rose-pine-nix.
        palettes.rose-pine =
          if (colors.flavor == "moon") then
            (mkDefault {
              overlay = "#393552";
              love = "#eb6f92";
              gold = "#f6c177";
              rose = "#ea9a97";
              pine = "#3e8fb0";
              foam = "#9ccfd8";
              iris = "#c4a7e7";
            })
          else if (colors.flavor == "dawn") then
            (mkDefault {
              overlay = "#f2e9e1";
              love = "#b4637a";
              gold = "#ea9d34";
              rose = "#d7827e";
              pine = "#286983";
              foam = "#56949f";
              iris = "#907aa9";
            })
          else
            (mkDefault {
              overlay = "#26233a";
              love = "#eb6f92";
              gold = "#f6c177";
              rose = "#ebbcba";
              pine = "#31748f";
              foam = "#9ccfd8";
              iris = "#c4a7e7";
            });

        palette = "rose-pine";

        username = {
          disabled = mkDefault false;
          format = mkDefault (mkFormat " 󰧱 $user ");
          show_always = mkDefault true;
          style_root = mkDefault "bg:overlay fg:iris";
          style_user = mkDefault "bg:overlay fg:iris";
        };

        directory = {
          format = mkDefault (mkFormat " $path ");
          style = mkDefault "bg:overlay fg:pine";
          truncation_length = mkDefault 3;
          truncation_symbol = mkDefault "…/";

          substitutions = {
            Documents = mkDefault "󰈙";
            Downloads = mkDefault " ";
            Music = mkDefault " ";
            Pictures = mkDefault " ";
          };
        };

        git_branch = {
          format = mkDefault (mkFormat " $symbol $branch ");
          style = mkDefault "bg:overlay fg:foam";
          symbol = mkDefault "";
        };

        git_status = {
          disabled = mkDefault false;
          style = mkDefault "bg:overlay fg:love";
          format = mkDefault (mkFormat " $all_status$ahead_behind");
          up_to_date = mkDefault "[ ✓ ](bg:overlay fg:iris)";
          untracked = mkDefault "[?\\($count\\)](bg:overlay fg:gold)";
          stashed = mkDefault "[\\$](bg:overlay fg:iris)";
          modified = mkDefault "[!\\($count\\)](bg:overlay fg:gold)";
          renamed = mkDefault "[»\\($count\\)](bg:overlay fg:iris)";
          deleted = mkDefault "[✘\\($count\\)](style)";
          staged = mkDefault "[++\\($count\\)](bg:overlay fg:gold)";
          ahead = mkDefault "[⇡\\(\${count}\\)](bg:overlay fg:foam)";
          diverged = mkDefault "⇕[\\[](bg:overlay fg:iris)[⇡\\(\${ahead_count}\\)](bg:overlay fg:foam)[⇣\\(\${behind_count}\\)](bg:overlay fg:rose)[\\]](bg:overlay fg:iris)";
          behind = mkDefault "[⇣\\(\${count}\\)](bg:overlay fg:rose)";
        };

        fill = {
          style = mkDefault "fg:overlay";
          symbol = mkDefault " ";
        };

        time = {
          disabled = mkDefault false;
          format = mkDefault (mkFormat " $time 󰴈 ");
          style = mkDefault "bg:overlay fg:rose";
          time_format = mkDefault "%I:%M%P";
          use_12hr = mkDefault true;
        };

        character =
          let
            vim = "";
            mkChar = sym: col: " [${sym}](fg:${col}) [󰄾](fg:foam)";
          in
          {
            success_symbol = mkChar "" "iris";
            error_symbol = mkChar "󰋔" "love";
            vimcmd_symbol = mkChar vim "rose";
            vimcmd_replace_one_symbol = mkChar vim "foam";
            vimcmd_replace_symbol = mkChar vim "foam";
            vimcmd_visual_symbol = mkChar vim "iris";
          };

        ### Languages ###
        c = {
          style = mkDefault "bg:overlay fg:pine";
          format = mkDefault langFormat;
          disabled = mkDefault false;
          symbol = mkDefault " ";
        };

        elixir = {
          style = mkDefault "bg:overlay fg:pine";
          format = mkDefault langFormat;
          disabled = mkDefault false;
          symbol = mkDefault " ";
        };

        elm = {
          style = mkDefault "bg:overlay fg:pine";
          format = mkDefault langFormat;
          disabled = mkDefault false;
          symbol = mkDefault " ";
        };

        haskell = {
          style = mkDefault "bg:overlay fg:pine";
          format = mkDefault langFormat;
          disabled = mkDefault false;
          symbol = mkDefault " ";
        };

        java = {
          style = mkDefault "bg:overlay fg:pine";
          format = mkDefault langFormat;
          disabled = mkDefault false;
          symbol = mkDefault " ";
        };

        julia = {
          style = mkDefault "bg:overlay fg:pine";
          format = mkDefault langFormat;
          disabled = mkDefault false;
          symbol = mkDefault " ";
        };

        nodejs = {
          style = mkDefault "bg:overlay fg:pine";
          format = mkDefault langFormat;
          disabled = mkDefault false;
          symbol = mkDefault "󰎙 ";
        };

        nim = {
          style = mkDefault "bg:overlay fg:pine";
          format = mkDefault langFormat;
          disabled = mkDefault false;
          symbol = mkDefault "󰆥 ";
        };

        python = {
          style = mkDefault "bg:overlay fg:pine";
          disabled = mkDefault false;
          symbol = mkDefault " ";
        };

        rust = {
          style = mkDefault "bg:overlay fg:pine";
          format = mkDefault langFormat;
          disabled = mkDefault false;
          symbol = mkDefault "";
        };

        scala = {
          style = "bg:overlay fg:pine";
          format = mkDefault langFormat;
          disabled = false;
          symbol = " ";
        };

        ### Tools ###
        conda = {
          style = mkDefault "bg:overlay fg:pine";
          format = mkDefault (mkFormat "$symbol$environment");
          disabled = mkDefault false;
          symbol = mkDefault "🅒 ";
        };

        nix_shell = {
          style = "bg:overlay fg:foam";
          format = mkDefault (mkFormat " $symbol $state( \($name\)) ");
          disabled = mkDefault false;
          symbol = mkDefault " ";
        };
      };
  };
}