// Let's define a variant because it's pretty
type platform =
  | Browser
  | Node;

// Utilizes 'ugly' raw javascript tester function
// that simply checks if window is available
let getPlatform = () => {
  let windowExists: unit => bool = [%raw
    {|
  function() {
    if (typeof window === 'undefined') { return false; }
    else return true;
  }
|}
  ];
  if (windowExists()) {
    Browser;
  } else {
    Node;
  };
};

// An universal wrapper module
module Log = {
  let error = (loc: string, msg: string) =>
    switch (getPlatform()) {
    | Browser => BrowserLogger.error(loc, msg)
    | Node => NodeLogger.error(loc, msg)
    };

  let info = (loc: string, msg: string) =>
    switch (getPlatform()) {
    | Browser => BrowserLogger.info(loc, msg)
    | Node => NodeLogger.info(loc, msg)
    };

  let warn = (loc: string, msg: string) =>
    switch (getPlatform()) {
    | Browser => BrowserLogger.warn(loc, msg)
    | Node => NodeLogger.warn(loc, msg)
    };
};

[@bs.val] external window: 'a = "window";
window->Js.typeof == "undefined"