#
# This loads the list of networks as a NixOS wpa_supplicant compatible attrset
#
# View the example config
# less $(nix-build --no-out-link -E '(import <nixpkgs> {}).wpa_supplicant')/share/doc/wpa_supplicant/wpa_supplicant.conf.example
let
  sources = import ../../npins;
  lib = import (sources.nixpkgs + "/lib");

  # wpa_supplicant uses `strchr` to seek to the first `=`, so the only forbidden character is `=`.
  escapePwdKey = lib.replaceStrings [ "=" ] [ "_" ];

  go =
    networkArgs@{
      ssid,
      # Custom fields wrapping nixpkgs module options
      hasPassword ? false,
      scanOnLowSignal ? false,
      randomizeMac ? false,
      ...
    }:
    {
      ${ssid} = lib.mkMerge [
        (builtins.removeAttrs networkArgs [
          # We keep ssid, because it overrides the attrset name ssid
          # "ssid"
          "hasPassword"
          "scanOnLowSignal"
          "randomizeMac"
        ])
        (lib.optionalAttrs hasPassword {
          pskRaw = "ext:${escapePwdKey ssid}";
        })
        {
          extraConfig = ''
            ${lib.optionalString scanOnLowSignal "bgscan=\"simple:30:-70:3600\""}
            ${lib.optionalString randomizeMac "mac_addr=1"}
          '';
        }
      ];
    };
in
ns: lib.mkMerge (map go ns)