os/modules/core/networking.nix

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

with lib;

let cfg = config.pub-solar.core;
in
{
  options.pub-solar.core = {
    binaryCaches = mkOption {
      type = types.listOf types.str;
      default = [ ];
      description = "Binary caches to use.";
    };
    publicKeys = mkOption {
      type = types.listOf types.str;
      default = [ ];
      description = "Public keys of binary caches.";
    };
    iwdConfig = mkOption {
      type = with types; nullOr (attrsOf (attrsOf (oneOf [ bool int str ])));
      default = null;
      description = "Configuratoin of iNet Wireless Daemon.";
    };
  };
  config = {
    networking.networkmanager = {
      # Enable networkmanager. REMEMBER to add yourself to group in order to use nm related stuff.
      enable = true;
      wifi.backend = "iwd";
    };

    # Customized binary caches list (with fallback to official binary cache)
    nix.binaryCaches = cfg.binaryCaches;
    nix.binaryCachePublicKeys = cfg.publicKeys;

    # These entries get added to /etc/hosts
    networking.hosts = {
      "127.0.0.1" = [ "cups.local" "help.local" "caddy.local" ];
    };

    # Caddy reverse proxy for local services like cups
    services.caddy = {
      enable = true;
      globalConfig = ''
        default_bind 127.0.0.1
        auto_https off
      '';
      extraConfig = ''
        cups.local:80 {
          request_header Host localhost:631
          reverse_proxy unix//run/cups/cups.sock
        }

        help.local:80 {
          root * ${pkgs.psos-docs}/lib/html
          file_server
        }
      '';
    };
  };
}