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{
  config,
  pkgs,
  lib,
  ...
}: let
  inherit (lib) genAttrs;
  inherit (lib.modules) mkIf mkMerge;
  inherit (lib.options) literalExpression mkEnableOption mkOption;
  inherit (lib.types) enum listOf;
  inherit (lib.nvim.types) mkGrammarOption;

  cfg = config.vim.languages.tex;
  defaultServers = ["texlab"];
  servers = ["texlab"];

  defaultFormat = ["tex-fmt"];
  formats = ["tex-fmt" "latexindent" "injected"];
in {
  options.vim.languages.tex = {
    enable = mkEnableOption "TeX language support";

    treesitter = {
      enable =
        mkEnableOption "TeX treesitter"
        // {
          default = config.vim.languages.enableTreesitter;
          defaultText = literalExpression "config.vim.languages.enableTreesitter";
        };
      latexPackage = mkGrammarOption pkgs "latex";
      bibtexPackage = mkGrammarOption pkgs "bibtex";
    };

    lsp = {
      enable =
        mkEnableOption "TeX LSP support"
        // {
          default = config.vim.lsp.enable;
          defaultText = literalExpression "config.vim.lsp.enable";
        };

      servers = mkOption {
        description = "TeX LSP server to use";
        type = listOf (enum servers);
        default = defaultServers;
      };
    };

    format = {
      enable =
        mkEnableOption "TeX formatting"
        // {
          default = config.vim.languages.enableFormat;
          defaultText = literalExpression "config.vim.languages.enableFormat";
        };

      type = mkOption {
        type = listOf (enum formats);
        default = defaultFormat;
        description = "TeX formatter to use";
      };
    };
  };

  config = mkIf cfg.enable (mkMerge [
    (mkIf cfg.treesitter.enable {
      vim.treesitter.enable = true;
      vim.treesitter.grammars = [
        cfg.treesitter.latexPackage
        cfg.treesitter.bibtexPackage
      ];
    })

    (mkIf cfg.lsp.enable {
      vim.lsp = {
        presets = genAttrs cfg.lsp.servers (_: {enable = true;});
        servers = genAttrs cfg.lsp.servers (_: {
          filetypes = ["plaintex" "tex" "bib"];
        });
      };
    })

    (mkIf cfg.format.enable {
      vim.formatter.conform-nvim = {
        enable = true;
        presets = genAttrs cfg.format.type (_: {enable = true;});
        setupOpts.formatters_by_ft = {
          tex = cfg.format.type;
          plaintex = cfg.format.type;
        };
      };
    })
  ]);
}