(defpackage :objc.scripting-bridge
  (:import-from :objc.manipulators :defun-ct :shortcut :<> :ext :sel)
  (:use :cl :cffi)
  (:export
   #:app))
(in-package :objc.scripting-bridge)
(named-readtables:in-readtable :objc-readtable)

(serapeum:eval-always
  (define-foreign-library scripting-bridge
    (:darwin (:framework "ScriptingBridge"))))

(use-foreign-library scripting-bridge)

(defun app (bundle-id)
  [#@SBApplication @(applicationWithBundleIdentifier:)
                   :pointer (objc-runtime:make-nsstring bundle-id)])

(defun itunes-app ()
  (app "com.apple.Music"))

(defun safari-app ()
  (app "com.apple.Safari"))

(defclass sbsafari ()
  ((%app-ref :reader app-ref :initform (safari-app))))

(defgeneric windows (object)
  (:method ((object sbsafari))
    (mapcar 'safari-window
            (objc-runtime.data-extractors:extract-from-objc
             [(app-ref object) @(windows)]?))))

(fw.lu:defclass+ safari-window ()
  ((%window-ref :reader window-ref :initarg :window-ref)))

(defgeneric name (thing)
  (:method ((thing safari-window))
    [(window-ref thing) @(name)]@))

(defgeneric tabs (object)
  (:method ((object safari-window))
    (mapcar 'safari-tab
            (objc-runtime.data-extractors:extract-from-objc
             [(window-ref object) @(tabs)]))))

(fw.lu:defclass+ safari-tab ()
  ((%tab-ref :reader tab-ref :initarg :tab-ref)))

(defgeneric source (tab)
  (:method ((tab safari-tab))
    [(tab-ref tab) @(source)]@))
(defgeneric text (tab)
  (:method ((tab safari-tab))
    [(tab-ref tab) @(text)]@))
(defgeneric url (tab)
  (:method ((tab safari-tab))
    [(tab-ref tab) @(URL)]@))

(defun current-track-info (itunes)
  (let* ((current-track [itunes @(currentTrack)]))
    (format t "~&Track: ~A (~v,1,0,'⋆<~>)~%Album: ~a (~v,1,0,'*<~>)~%Artist: ~a~%"
            [current-track @(name)]@
            (/ [current-track @(rating)]# 20)
            [current-track @(album)]@
            (/ [current-track @(albumRating)]# 10)
            [current-track @(artist)]@)))

(defun-ct tab-info ()
  (data-lens:juxt
   (<> (ext) (sel t @(name)))
   (<> (ext) (sel t @(URL)))))

(data-lens:shortcut window-info data-lens:juxt
  (sel :int @(id))
  #'identity
  (sel :nsstring @(name)))

(defun safari-tab-info (safari)
  (funcall (data-lens:over (tab-info))
           (mapcan (<> (ext) (sel t @(tabs)))
                   (objc-runtime.data-extractors:extract-from-objc
                    [safari @(windows)]))))

(defun format-tab-info (info)
  (format t "~{~:@{** ~a~% ~a~%~}~2%~}" info))

(defun safari-main ()
  (format-tab-info
   (safari-tab-info
    (safari-app))))

(defun count-invocations (hof)
  (lambda (f &rest hof-args)
    (let ((count 0))
      (declare (dynamic-extent count))
      (flet ((nested-lambda (&rest args)
               (prog1 (apply f count args)
                 (incf count))))
        (apply hof #'nested-lambda hof-args)))))

(defmacro comment (&body b)
  b ())

#+nil
(comment
  (defun kebab-case (s)
    (loop
       for start = 0 then end
       for end = (position-if 'upper-case-p s) then (when start (position-if 'upper-case-p s :start (1+ end)))
       while start
       collect (string-downcase (subseq s start end)) into parts
       finally (return (serapeum:string-join parts #\-))))

  (defun get-method-symbol (selector-name package)
    (funcall (alexandria:compose (lambda (x) (intern x package))
                                 #'string-upcase
                                 (lambda (x) (substitute #\- #\:
                                                         (string-trim ":-" x)))
                                 'kebab-case)
             selector-name))

  (defun intern-method (selector-name package)
    (let ((symbol (get-method-symbol selector-name package)))
      (format t "~&~s ~s~%" symbol selector-name)
      (if (alexandria:starts-with-subseq "set" selector-name)
          (setf (fdefinition `(setf ,symbol))
                (lambda (new-val receiver &rest r)
                  (declare (ignore r))
                  (objc-runtime:objc-msg-send receiver (objc-runtime::ensure-selector selector-name) :pointer new-val)))
          (setf (fdefinition symbol)
                (sel (objc-runtime::ensure-selector selector-name))))))

  (defun populate-package (objc-class package)
    (mapc (lambda (method-name)
            (intern-method method-name package))
          (objc-runtime:get-method-names objc-class)))

  (defmacro define-objc-call (selector (&rest argument-specs) result-type &optional extractor)
    (declare (ignorable extractor))
    `(defun ,(get-method-symbol (cadr selector) *package*) (receiver ,@(mapcar #'car argument-specs))
       ,(case result-type
          (:string `(objc-runtime:objc-msg-send-string receiver ,selector ,@(mapcan #'reverse argument-specs)))
          ((:long :int) `(objc-runtime:objc-msg-send-int receiver ,selector ,@(mapcan #'reverse argument-specs)))
          (t `(objc-runtime:objc-msg-send receiver ,selector ,@(mapcan #'reverse argument-specs))))))

  (defmacro define-objc (() &body calls)
    `(progn ,@(loop for call in calls
                 collect `(define-objc-call ,@call))))

  (define-objc-call @(init) () :pointer)
  (define-objc-call @(sharedApplication) () :pointer)
  )