;; -*- mode: common-lisp; -*-

;;; The following lines added by ql:add-to-init-file:
;; #-quicklisp
;; (let ((quicklisp-init (merge-pathnames ".quicklisp/setup.lisp"
;;                                        (user-homedir-pathname))))
;;   (when (probe-file quicklisp-init)
;;     (load quicklisp-init)))

;; Some OSes package Lisp compilers in a way that ASDF is not automatically loaded.
(require "asdf")

(uiop:define-package #:guix
  (:use :common-lisp))
(in-package #:guix)

(export '*guix-profiles-dir*)
(defvar *guix-profiles-dir* "~/.guix-extra-profiles/"
  "Directory in which Guix profiles are stored.
The actual profiles are in the subsubdirectories.")

(export '*cffi-dirs*)
(defvar *cffi-dirs* '("~/.guix-profile/lib" "~/common-lisp/cl-webengine/source")
  "Shared library directories to be used for CFFI.")

(defun find-guix-library-dirs (profiles-dir)
  (mapcar (lambda (d)
            (format nil "~a~a/lib/"
                    (namestring d)
                    (first (last (pathname-directory d)))))
          (uiop:subdirectories profiles-dir)))

(export 'set-cffi-library-dirs)
(defun set-cffi-library-dirs (&optional (dirs (append
                                               *cffi-dirs*
                                               (find-guix-library-dirs *guix-profiles-dir*))))
  "Call this to set `cffi:*foreign-library-directories*' to DIRS."
  (when (ignore-errors (asdf:load-system "cffi"))
    (let ((sym (read-from-string "cffi:*foreign-library-directories*")))
      (setf (symbol-value sym)
            (union (symbol-value sym)
                   ;; CFFI needs a trailing "/".
                   (delete nil (mapcar #'uiop:ensure-directory-pathname dirs))
                   :test #'uiop:pathname-equal)))))

;; Set it by default.
(set-cffi-library-dirs)

(in-package :cl-user)

;; Uncomment the following to increase the debug details.
;; It's often better to do this from the REPL.
;; (declaim (optimize (speed 0) (space 0) (debug 3)))

;; Uncomment to enable full type checks (should be the default).
;; (declaim (optimize (or (>= safety 2) (>= safety speed 1))))