(require-extension datatype static-modules miniML miniMLsyntax miniMLparse miniMLeval)
(import (only data-structures compose)
 	 (only srfi-1 fold filter member delete-duplicates) 
 (only extras pp fprintf))


(define-values (env-binding? env-empty env-add-signature env-add-module env-add-type env-add-spec env-add-value
	        env-find-value env-find-type env-find-module env-find)
  (make-mod-env core-syntax))

(define-values (scope-typedecl scope-modtype scope-signature scope-modterm scope-moddef)
  (make-mod-scoping core-syntax core-scoping))

(define-values (check-modtype check-signature type-modterm type-moddef type-definition)
  (make-mod-typing core-syntax core-typing))

(define init-scope      (make-parameter st-empty))
(define init-type-env   (make-parameter env-empty))
(define init-eval-env   (make-parameter env-empty))

(define (enter-typedecl id decl)
  (init-scope (st-enter-type id (init-scope)))
  (init-type-env   (env-add-type id decl (init-type-env))))

(define (enter-valtype name ty)
  (let ((id (ident-create name)))
    (init-scope (st-enter-value id (init-scope)))
    (init-type-env   (env-add-value id ty (init-type-env)))))

(define (enter-val name val)
  (let ((id (or (and (ident? name) name) (ident-create name))))
    (init-eval-env (ident-add id val (init-eval-env)))))

(core-initialize enter-typedecl enter-valtype)
(eval-cbv-initialize enter-val)

(define (enter-module id mty)
  (init-scope (st-enter-module id (init-scope)))
  (init-type-env (env-add-module id mty (init-type-env))))

(define (interpreter operand)
  (let ((defs (parse 'miniML (open-input-file operand))))
    (let* ((scoped-defs      (scope-moddef (init-scope) defs))
	    (mty              (type-moddef (init-type-env) '() scoped-defs))
    (type-env         (map (lambda (x) (cases modspec x
					      (Value_sig (id vty) (cons id x))
 					      (Type_sig (id decl) (cons id x))
					      (Module_sig (id mty) (cons id x))
					      )) mty))
    (eval-env         (mod-eval-cbv (init-eval-env) scoped-defs))
    (unified-env      (list scoped-defs 
	 			   (filter (lambda (x) (not (assoc (car x) (init-type-env)))) type-env) 
				   (filter (lambda (x) (not (assoc (car x) (init-eval-env)))) eval-env) ))

	   )
      (pp unified-env)
      )))

(for-each interpreter (command-line-arguments))