(def env-variable-true?
  (fn [v]
    (and (not (= "" v))
         (not (= "0" v))
         (not (= "false" v)))))

(def carp-dir (getenv "CARP_DIR"))
(def carp-dev (env-variable-true? (getenv "CARP_DEV")))

(if (= carp-dir "")
  (do (println (str "Environment variable 'CARP_DIR' is not set, did you run 'carp-repl' directly?\n"
                    "Please use the carp shell script instead."))
      (exit -1))
  nil)

;; ~~~ CORE ~~~
(load-lisp (str carp-dir "lisp/core.carp"))
(load-lisp (str carp-dir "lisp/builtins.carp"))
(load-lisp (str carp-dir "lisp/signatures.carp"))

(when carp-dev
  (load-lisp (str carp-dir "lisp/core_tests.carp")))

;; ~~~ COMPILER ~~~
(load-lisp (str carp-dir "lisp/compiler.carp"))

(when carp-dev
  (do
    (time (load-lisp (str carp-dir "lisp/compiler_tests.carp")))
    (load-lisp (str carp-dir "lisp/examples.carp"))
    (load-lisp (str carp-dir "lisp/glfw_test.carp"))))

;;(load-lisp (str carp-dir "lisp/improved_core.carp"))

;; ~~~ USER BOOT FILES ~~~
(let [user-boot-file (str (getenv "HOME") "/.carp/user.carp")]
  (when (file-exists? user-boot-file)
    (load-lisp user-boot-file)))

(when (file-exists? "project.carp")
  (load-lisp "project.carp"))