Show expected income.

src/member-fees.scm

@@ -28,6 +28,7 @@
 (module
  member-fees
  (
+  lookup-member-fee
   member-calendar
   member-calendar-first-month
   member-calendar-last-month

src/members-print.scm

@@ -346,12 +346,12 @@
 		    (total (- (+ credit payment) fees)))
 	       (list (member-nick mr)
 		     (if (member-suspended? mr)
-			 "suspended"
+			 'suspended
 			 (if (member-student? mr)
-			     "student"
+			     'student
 			     (if (member-destroyed? mr)
-				 "destroyed"
-				 "active")))
+				 'destroyed
+				 'active)))
 		     fees
 		     credit
 		     payment
@@ -418,6 +418,17 @@
 		   (map (lambda (member)
 			  (min 0 (list-ref member 5)))
 			members)))
+     (let* ((ns (foldl (lambda (acc member)
+			 (cons (+ (car acc) (if (eq? 'student (cadr member)) 1 0))
+			       (+ (cdr acc) (if (eq? 'active (cadr member)) 1 0))))
+		       (cons 0 0)
+		       members))
+	    (students (car ns))
+	    (full (cdr ns)))
+       (print "Expected income: "
+	      (+ (* (lookup-member-fee 'normal) full)
+		 (* (lookup-member-fee 'student) students))
+	      " (" full " full members + " students " students)"))
      )
    )