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

let
  themePath = ../../themes/palettes + "/${config.nomarchy.theme}/apps/vscode.json";
  themeConfig = if builtins.pathExists themePath then
    builtins.fromJSON (builtins.readFile themePath)
  else
    { name = "Default Dark Modern"; };

  # Theme extensions matching palette vscode.json `extension` fields.
  # Always installed because workbench.colorTheme is set unconditionally
  # from the active palette — without the matching extension VSCode
  # silently falls back to its default theme.
  #
  # The list is split because nixpkgs doesn't package every theme our
  # palettes use. Six are in pkgs.vscode-extensions; the rest are pulled
  # from the VSCode marketplace via extensionFromVscodeMarketplace with
  # publisher / name / version / sha256 pinned. To refresh a version,
  # bump the `version` and `nix-prefetch-url` the new .vsix:
  #
  #   URL='https://${publisher}.gallery.vsassets.io/_apis/public/gallery/publisher/${publisher}/extension/${name}/${version}/assetbyname/Microsoft.VisualStudio.Services.VSIXPackage'
  #   nix store prefetch-file --hash-type sha256 "$URL"
  #
  # Three palette extensions remain unfixed because the corresponding
  # marketplace entries don't exist — Bjarne.ethereal-nomarchy,
  # Bjarne.hackerman-nomarchy, Bjarne.vantablack-nomarchy. The matching
  # palettes (ethereal, hackerman, vantablack) still fall back to
  # VSCode's default theme; see the ROADMAP Later row for next steps.

  marketplaceExtensions = with pkgs.vscode-utils; [
    (extensionFromVscodeMarketplace {           # everforest, summer-day, summer-night
      publisher = "sainnhe"; name = "everforest"; version = "0.3.0";
      sha256 = "sha256-nZirzVvM160ZTpBLTimL2X35sIGy5j2LQOok7a2Yc7U=";
    })
    (extensionFromVscodeMarketplace {           # flexoki-light
      publisher = "shadesOfBuntu"; name = "flexoki-light"; version = "1.0.0";
      sha256 = "sha256-//y9uvIUGGDEhd8inDHvNy2e1IKNx6hSfO9sxNOTcUE=";
    })
    (extensionFromVscodeMarketplace {           # kanagawa
      publisher = "qufiwefefwoyn"; name = "kanagawa"; version = "1.5.1";
      sha256 = "sha256-AGGioXcK/fjPaFaWk2jqLxovUNR59gwpotcSpGNbj1c=";
    })
    (extensionFromVscodeMarketplace {           # lumon
      publisher = "oldjobobo"; name = "lumon-theme"; version = "0.0.7";
      sha256 = "sha256-YlO1r1JjaumiicvMk5fBr+PZCYFaII03PaLiyqE35Go=";
    })
    (extensionFromVscodeMarketplace {           # matte-black
      publisher = "TahaYVR"; name = "matteblack"; version = "1.0.3";
      sha256 = "sha256-wn/llGidzyPd91XT3xVqAvaU4NcTTggTSz8WmUcV8HM=";
    })
    (extensionFromVscodeMarketplace {           # miasma
      publisher = "oldjobobo"; name = "miasma-theme"; version = "0.1.1";
      sha256 = "sha256-STFTGFhQqxocr+YNFQp36IQWJRKTDBgBg4MOCOq1IPQ=";
    })
    (extensionFromVscodeMarketplace {           # osaka-jade
      publisher = "jovejonovski"; name = "ocean-green"; version = "1.1.2";
      sha256 = "sha256-sUNjnzqXya23Uieg8RLcEfnxiX0ImZ6CIjFtSJ66vM4=";
    })
    (extensionFromVscodeMarketplace {           # retro-82
      publisher = "oldjobobo"; name = "retro-82-theme"; version = "0.1.4";
      sha256 = "sha256-GqFeFFG5scO7CEXlKjj6uoilCoUfpRaQa5jBSnNJyJA=";
    })
    (extensionFromVscodeMarketplace {           # ristretto
      publisher = "monokai"; name = "theme-monokai-pro-vscode"; version = "2.0.13";
      sha256 = "sha256-5bKwVzDfZoSipR04tPDx9jbKhYsSsa3z6Ei9E2jhudo=";
    })
    (extensionFromVscodeMarketplace {           # white
      publisher = "Bjarne"; name = "white-theme"; version = "0.0.1";
      sha256 = "sha256-3ZyWNVlQO3Tof49FFF3OImuo7hgtJXLNuwQ+iHjzzGk=";
    })
  ];

  themeExtensions = (with pkgs.vscode-extensions; [
    catppuccin.catppuccin-vsc                  # catppuccin, catppuccin-latte
    enkia.tokyo-night                          # tokyo-night
    arcticicestudio.nord-visual-studio-code    # nord
    mvllow.rose-pine                           # rose-pine
    jdinhlife.gruvbox                          # gruvbox
  ]) ++ marketplaceExtensions;

  # Development extensions — opt-in via nomarchy.vscode.devExtensions.
  devExtensions = with pkgs.vscode-extensions; [
    # Language support
    ms-python.python
    rust-lang.rust-analyzer
    golang.go
    jnoortheen.nix-ide

    # Git integration
    eamodio.gitlens

    # Editor enhancements
    esbenp.prettier-vscode
    dbaeumer.vscode-eslint
    bradlc.vscode-tailwindcss
  ];
in
{
  options.nomarchy.vscode = {
    devExtensions = lib.mkOption {
      type = lib.types.bool;
      default = false;
      description = "Whether to install development extensions for VSCode.";
    };
  };

  config = {
    programs.vscode = {
      enable = lib.mkDefault true;
      package = lib.mkDefault pkgs.vscode;
      profiles.default.userSettings = lib.mkDefault {
        "update.mode" = "none";
        "workbench.colorTheme" = themeConfig.name;
        "window.titleBarStyle" = "custom";
        "editor.fontFamily" = "'${config.nomarchy.fonts.monospace}', 'Droid Sans Mono', monospace";
        "terminal.integrated.fontFamily" = config.nomarchy.fonts.monospace;
      };
      extensions = lib.mkDefault (
        themeExtensions
        ++ lib.optionals config.nomarchy.vscode.devExtensions devExtensions
      );
    };
  };
}