system/users/jan/progs/hledger.nix

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

with lib;

let
  cfg = config.progs.hledger;

  bin = "${pkgs.hledger}/bin/hledger";
  sbin = "${bin} --strict";

  hledgerAliases = {
    hle = bin;
    shle = sbin;
  };
in
{
  options.progs.hledger = {
    enable = mkOption {
      type = types.bool;
      default = false;
      description = "Add and configure hledger tool to manage finance";
    };
  };

  config = mkIf cfg.enable {
    home.packages = with pkgs; [
      hledger
      hledger-ui
      hledger-interest
    ];

    home.file = {
      "finance/commodities.journal".text = ''
        ; Fiat currencies
        commodity 1.000,00 RUB
        commodity 1.000,00 USD

        ; Investment commodities

        ; Cryptocurrencies

        ; Other

        ; Default commodity
        ; D 1.000,00 RUB
      '';
    };

    programs.zsh.shellAliases = mkIf config.shell.zsh.enable hledgerAliases;
  };
}