(import scheme)
(cond-expand
 (chicken-4
  (use (prefix sdl2 sdl2:)
       (prefix kiwi kw:))
  (import (only sdl2-internals unwrap-renderer unwrap-window)))
 (chicken-5
  (import (chicken base))
  (import (prefix sdl2 sdl2:))
  (import (prefix kiwi kw:))
  (import (only sdl2-internals unwrap-renderer unwrap-window))))

(sdl2:set-main-ready!)
(sdl2:init! '(everything))

(define width 320)
(define height 240)

(define-values (window renderer)
  (sdl2:create-window-and-renderer! width height))

(sdl2:render-draw-color-set! renderer (sdl2:make-color 200 100 100))

(define driver (kw:create-sdl2-driver (unwrap-renderer renderer)
                                      (unwrap-window window)))

(define tileset (kw:load-surface driver "tileset.png"))
(define gui (kw:init! driver tileset))

(define font (kw:load-font driver "Fontin-Regular.ttf" 12))
(kw:gui-font-set! gui font)

(define frame-geometry (kw:rect 10 10 (/ width 2) (/ height 2)))
(define label-geometry (kw:rect 0 0 (/ width 2) (/ height 2)))
(define frame #f)

(let loop ((i 0))
  (when (< i 10)
    (set! frame (kw:frame gui frame frame-geometry))
    (kw:label gui frame "Yay" label-geometry)
    (loop (add1 i))))

(let loop ()
  (when (not (sdl2:quit-requested?))
    (sdl2:render-clear! renderer)
    (kw:process-events! gui)
    (kw:paint! gui)
    (sdl2:render-present! renderer)
    (sdl2:delay! 1)
    (loop)))

(kw:quit! gui)
(sdl2:quit!)