;; -*- geiser-scheme: chicken -*-
(module (qml core)
    *
  (import scheme)
  (import (chicken gc))
  (import (chicken string))
  (import (chicken base))
  (import (chicken condition))
  (import (qml lowlevel))
  (import coops coops-primitive-objects coops-extras srfi-1 srfi-69)

  ;; Enums
  (define-class <Enum> ()
    ((val accessor: val)))

  (define-class <QEventLoopProcessEventFlag> (<Enum>))
  (define (qevent-loop-process-event-flag val)
    (case val
      ((process-all-events:)
       (make <QEventLoopProcessEventFlag> 'val DosQEventLoopProcessEventFlagProcessAllEvents))
      ((exclude-user-input-events:)
       (make <QEventLoopProcessEventFlag> 'val DosQEventLoopProcessEventFlagExcludeUserInputEvents))
      ((process-exclude-socket-notifiers:)
       (make <QEventLoopProcessEventFlag> 'val DosQEventLoopProcessEventFlagProcessExcludeSocketNotifiers))
      ((process-all-events-wait-for-more-events:)
       (make <QEventLoopProcessEventFlag> 'val DosQEventLoopProcessEventFlagProcessAllEventsWaitForMoreEvents))))

  (define-class <QtConnectionType> (<Enum>))
  (define (qt-connection-type val)
    (case val
      ((auto:)
       (make <QtConnectionType> 'val DosQtConnectionTypeAutoConnection))
      ((direct:)
       (make <QtConnectionType> 'val DosQtConnectionTypeDirectConnection))
      ((queued:)
       (make <QtConnectionType> 'val DosQtConnectionTypeQueuedConnection))
      ((blocking:)
       (make <QtConnectionType> 'val DosQtConnectionTypeBlockingConnection))
      ((unique:)
       (make <QtConnectionType> 'val DosQtConnectionTypeUniqueConnection))))

  (define-class <QQuickViewResizeMode> (<Enum>))
  (define (qquick-view-resize-mode val)
    (case val
      ((size-view-to-root-object:) (make <QQuickViewResizeMode> 'val #x0))
      ((size-root-object-to-view:) (make <QQuickViewResizeMode> 'val #x1))))

  (define-class <QItemDataRole> (<Enum>))
  (define (qitem-data-role val)
    (case val
      ((display:) (make <QItemDataRole> 'val 0))
      ((decoration:) (make <QItemDataRole> 'val 1))
      ((edit:) (make <QItemDataRole> 'val 2))
      ((tool-tip:) (make <QItemDataRole> 'val 3))
      ((status-tip:) (make <QItemDataRole> 'val 4))
      ((whats-this:) (make <QItemDataRole> 'val 5))
      ((font:) (make <QItemDataRole> 'val 6))
      ((text-alignment:) (make <QItemDataRole> 'val 7))
      ((background:) (make <QItemDataRole> 'val 8))
      ((foreground:) (make <QItemDataRole> 'val 9))
      ((check-state:) (make <QItemDataRole> 'val 10))
      ((accessible-text:) (make <QItemDataRole> 'val 11))
      ((accessible-description:) (make <QItemDataRole> 'val 12))
      ((size-hint:) (make <QItemDataRole> 'val 13))
      ((initial-sort-order:) (make <QItemDataRole> 'val 14))))

  (define-class <QtOrientation> (<Enum>))
  (define (qt-orientation val)
    (case val
      ((horizontal:) (make <QtOrientation> 'val #x01))
      ((vertical:) (make <QtOrientation> 'val #x02))))

  ;; Helpers
  (define (application-dir-path)
    (dos_qcoreapplication_application_dir_path))
  (define-method (process-events (flag <QEventLoopProcessEventFlag>))
    (dos_qcoreapplication_process_events (val flag)))
  (define-method (process-events-timed (flag <QEventLoopProcessEventFlag>) (timed <integer>))
    (dos_qcoreapplication_process_events_timed (val flag) timed))

  (define (gui-application-create)
    (dos_qguiapplication_create))
  (define (gui-application-exec)
    (dos_qguiapplication_exec))
  (define (gui-application-quit)
    (dos_qguiapplication_quit))
  (define (gui-application-delete)
    (dos_qguiapplication_delete))

  (define (qapplication-create)
    (dos_qapplication_create))
  (define (qapplication-exec)
    (dos_qapplication_exec))
  (define (qapplication-quit)
    (dos_qapplication_quit))
  (define (qapplication-delete)
    (dos_qapplication_delete))

  (define (qquickstyle-set-style style)
    (dos_qquickstyle_set_style style))
  (define (qquickstyle-set-fallback-style style)
    (dos_qquickstyle_set_fallback_style style))

  ;; Objects
  (define callback-registry
    (make-hash-table))

  (define-method (refcount (alist <list>))
    (cdr (find (lambda (a) (eq? refcount: (car a))) alist)))
  (define-method (refcount (ht <hash-table>) (ptr <pointer>))
    (if (hash-table-exists? callback-registry ptr)
        (refcount (hash-table-ref ht ptr))
        0))

  (define-class <QMLBase> ()
    ((ptr accessor: ptr initform: #f)))
  (define-method (delete-pointer (qbase <QMLBase>))
    (abort (make-property-condition 'exn 'Message "Please implement the delete method for your subtype.")))
  (define-method (add-ptrentry (qbase <QMLBase>))
    (hash-table-update! callback-registry (ptr qbase)
                        (lambda (alist)
                          (alist-update refcount: (+ 1 (refcount alist)) alist))
                        (lambda ()
                          (alist-cons refcount: 1 '()))))
  (define-method (remove-ptrentry (qbase <QMLBase>))
    (if (eq? 1 (refcount callback-registry (ptr qbase)))
        (hash-table-delete! callback-registry (ptr qbase))
        (hash-table-update! callback-registry (ptr qbase)
                            (lambda (alist)
                              (alist-update refcount: (- (refcount alist) 1) alist)))))
  (define-method (initialize-instance (qbase <QMLBase>))
    (call-next-method)
    (add-ptrentry qbase)
    (set-finalizer! qbase (lambda (obj)
                            (remove-ptrentry qbase)
                            (when (= 0 (refcount callback-registry (ptr qbase)))
                              (delete-pointer qbase)))))

  (define-class <QObject> (<QMLBase>))
  (define-method (signal-emit (qo <QObject>) (name <string>) (paramcount <integer>) (parameters <sequence>))
    (dos_qobject_signal_emit (ptr qo) name paramcount parameters))
  (define-method (delete-pointer (qo <QObject>))
    (dos_qobject_delete (ptr qo)))
  (define-method (delete-pointer-later (qo <QObject>))
    (dos_qobject_deleteLater (ptr qo)))

  (define-class <QVariant> (<QMLBase>)
    ((ptr accessor: ptr)))
  (define-method (initialize-instance (qv <QVariant>))
    (set! (ptr qv) (dos_qvariant_create))
    (call-next-method))
  (define-method (qvariant (val <integer>))
    (make <QVariant> 'ptr (dos_qvariant_create_int val)))
  (define-method (qvariant (val <boolean>))
    (make <QVariant> 'ptr (dos_qvariant_create_bool val)))
  (define-method (qvariant (val <string>))
    (make <QVariant> 'ptr (dos_qvariant_create_string val)))
  (define-method (qvariant (val <QObject>))
    (make <QVariant> 'ptr (dos_qvariant_create_qobject (ptr val))))
  (define-method (qvariant (val <flonum>))
    (make <QVariant> 'ptr (dos_qvariant_create_float val)))
  (define-method (set (qv <QVariant>) (val <integer>))
    (dos_qvariant_setInt (ptr qv) val))
  (define-method (set (qv <QVariant>) (val <boolean>))
    (dos_qvariant_setBool (ptr qv) val))
  (define-method (set (qv <QVariant>) (val <flonum>))
    (dos_qvariant_setFloat (ptr qv) val))
  (define-method (set (qv <QVariant>) (val <string>))
    (dos_qvariant_setString (ptr qv) val))
  (define-method (set (qv <QVariant>) (val <QObject>))
    (dos_qvariant_setQObject (ptr qv) (ptr val)))
  (define-method (to (qv <QVariant>) (target <keyword>))
    (case target
      ((integer:) (dos_qvariant_toInt (ptr qv)))
      ((boolean:) (dos_qvariant_toBool (ptr qv)))
      ((string:)  (dos_qvariant_toString (ptr qv)))
      ((flonum:)  (dos_qvariant_toFloat (ptr qv)))
      ((qobject:) (dos_qvariant_toQObject (ptr qv)))))
  (define-method (is-null? (qv <QVariant>))
    (dos_qvariant_isnull (ptr qv)))
  (define-method (assign (qv <QVariant>) (other <QVariant>))
    (dos_qvariant_assign (ptr qv) (ptr other)))
  (define-method (copy (qv <QVariant>))
    (make <QVariant> 'ptr (dos_qvariant_create_qvariant (ptr qv))))
  (define-method (delete-pointer (qv <QVariant>))
    (dos_qvariant_delete (ptr qv)))

  (define-class <QQmlContext> (<QObject>))
  (define-method (base-url (context <QQmlContext>))
    (dos_qqmlcontext_baseUrl (ptr context)))
  (define-method (set-property (context <QQmlContext>) (name <string>) (qvalue <QVariant>))
    (dos_qqmlcontext_setcontextproperty (ptr context) name (ptr qvalue)))

  (define-class <QUrl> (<QMLBase>))
  (define (new-QUrl url)
    (let ((qurl (make <QUrl> 'ptr (dos_qurl_create url 0))))
      qurl))
  (define-method (to-string (qurl <QUrl>))
    (dos_qurl_to_string (ptr qurl)))
  (define-method (valid? (qurl <QUrl>))
    (dos_qurl_isValid (ptr qurl)))
  (define-method (delete-pointer (qurl <QUrl>))
    (dos_qurl_delete (ptr qurl)))

  (define-class <QPixmap> (<QMLBase>))
  (define-method (initialize-instance (qpx <QPixmap>))
    (set! (slot-value qpx 'ptr) (dos_qpixmap_create))
    (call-next-method))
  (define (new-QPixmap width height)
    (make <QPixmap> 'ptr (dos_qpixmap_create_width_and_height width height)))
  (define-method (copy (qpix <QPixmap>))
    (make <QPixmap> 'ptr (dos_qpixmap_create_qpixmap (ptr qpix))))
  (define-method (load (qpix <QPixmap>) (filepath <string>) (format <string>))
    (dos_qpixmap_load (ptr qpix) filepath format))
  (define-method (load-from-data (qpix <QPixmap>) (data <string>) (len <integer>))
    (dos_qpixmap_loadFromData (ptr qpix) data len))
  (define-method (fill (qpix <QPixmap>) (r <char>) (g <char>) (b <char>) (a <char>))
    (dos_qpixmap_fill (ptr qpix) r g b a))
  (define-method (assign (qpix <QPixmap>) (other <QPixmap>))
    (dos_qpixmap_assign (ptr qpix) (ptr other)))
  (define-method (is-null? (qpix <QPixmap>))
    (dos_qpixmap_isNull (ptr qpix)))
  (define-method (delete-pointer (qpix <QPixmap>))
    (dos_qpixmap_delete (ptr qpix)))

  (define-class <QQuickImageProvider> (<QMLBase>))
  (define-method (new-QQuickImageProvider callback)
    (make <QQuickImageProvider> 'ptr (dos_qquickimageprovider_create callback)))
  (define-method (delete-pointer (qip <QQuickImageProvider>))
    (dos_qquickimageprovider_delete (ptr qip)))

  (define-class <QQmlApplicationEngine> (<QObject>))
  (define-method (initialize-instance (qae <QQmlApplicationEngine>))
    (set! (slot-value qae 'ptr) (dos_qqmlapplicationengine_create))
    (call-next-method))
  (define-method (load (appengine <QQmlApplicationEngine>) (filePath <string>))
    (dos_qqmlapplicationengine_load (ptr appengine) filePath))
  (define-method (load-url (appengine <QQmlApplicationEngine>) (qurl <QUrl>))
    (dos_qqmlapplicationengine_load_url (ptr appengine) (ptr qurl)))
  (define-method (load-data (appengine <QQmlApplicationEngine>) (data <string>))
    (dos_qqmlapplicationengine_load_data (ptr appengine) data))
  (define-method (add-import-path (appengine <QQmlApplicationEngine>) (import-path <string>))
    (dos_qqmlapplicationengine_add_import_path (ptr appengine) import-path))
  (define-method (context (appengine <QQmlApplicationEngine>))
    (make <QQmlContext> 'ptr (dos_qqmlapplicationengine_context (ptr appengine))))
  (define-method (add-image-provider (appengine <QQmlApplicationEngine>) (provider-id <string>) (provider <QQuickImageProvider>))
    (dos_qqmlapplicationengine_addImageProvider (ptr appengine) provider-id (ptr provider)))
  (define-method (delete-pointer (appengine <QQmlApplicationEngine>))
    (dos_qqmlapplicationengine_delete (ptr appengine)))

  (define-class <QQuickView> (<QObject>))
  (define-method (initialize-instance (qqv <QQuickView>))
    (set! (slot-value qqv 'ptr) (dos_qquickview_create))
    (call-next-method))
  (define-method (show (qqv <QQuickView>))
    (dos_qquickview_show (ptr qqv)))
  (define-method (source (qqv <QQuickView>))
    (dos_qquickview_source (ptr qqv)))
  (define-method (set-source-url (qqv <QQuickView>) (qurl <QUrl>))
    (dos_qquickview_set_source_url (ptr qqv) (ptr qurl)))
  (define-method (set-source (qqv <QQuickView>) (filename <string>))
    (dos_qquickview_set_source (ptr qqv) filename))
  (define-method (set-resize-mode (qqv <QQuickView>) (mode <QQuickViewResizeMode>))
    (dos_qquickview_set_resize_mode (ptr qqv) (val mode)))
  (define-method (root-context (qqv <QQuickView>))
    (make <QQmlContext> 'ptr (dos_qquickview_rootContext (ptr qqv))))
  (define-method (delete-pointer (qqv <QQuickView>))
    (dos_qquickview_delete (ptr qqv)))

  (define-class <QMetaObject> (<QMLBase>))
  (define (new-QMetaObject superclass classname signal-definitions slot-definitions property-definitions)
    (make <QMetaObject> 'ptr (dos_qmetaobject_create (ptr superclass) classname signal-definitions
                                                     slot-definitions property-definitions)))
  (define-method (invoke-method (qmo <QMetaObject>) (callback <procedure>) (data <pointer>) (connection-type <QtConnectionType>))
    (dos_qmetaobject_invoke_method (ptr qmo) callback data (val connection-type)))
  (define-method (delete-pointer (qmo <QMetaObject>))
    (dos_qmetaobject_delete (ptr qmo)))
  (define (qmetaobject kind)
    (case kind
      ((qobject:) (make <QMetaObject> 'ptr (dos_qobject_qmetaobject)))
      ((qabstractitemmodel:) (make <QMetaObject> 'ptr (dos_qabstractitemmodel_qmetaobject)))
      ((qabstracttablemodel:) (make <QMetaObject> 'ptr (dos_qabstracttablemodel_qmetaobject)))
      ((qabstractlistmodel:) (make <QMetaObject> 'ptr (dos_qabstractlistmodel_qmetaobject)))))

  (define-class <QModelIndex> (<QMLBase>))
  (define-method (initialize-instance (qmi <QModelIndex>))
    (set! (ptr qmi) (dos_qmodelindex_create))
    (call-next-method))
  (define-method (copy (qmi <QModelIndex>))
    (make <QModelIndex> 'ptr (dos_qmodelindex_create_qmodelindex (ptr qmi))))
  (define-method (row (qmi <QModelIndex>))
    (dos_qmodelindex_row (ptr qmi)))
  (define-method (column (qmi <QModelIndex>))
    (dos_qmodelindex_column (ptr qmi)))
  (define-method (is-valid? (qmi <QModelIndex>))
    (dos_qmodelindex_isValid (ptr qmi)))
  (define-method (data (qmi <QModelIndex>) (role <QItemDataRole>))
    (dos_qmodelindex_data (ptr qmi) (val role)))
  (define-method (parent (qmi <QModelIndex>))
    (make <QModelIndex> 'ptr (dos_qmodelindex_parent (ptr qmi))))
  (define-method (child (qmi <QModelIndex>) (row <integer>) (column <integer>))
    (make <QModelIndex> 'ptr (dos_qmodelindex_child (ptr qmi) row column)))
  (define-method (sibling (qmi <QModelIndex>) (row <integer>) (column <integer>))
    (make <QModelIndex> 'ptr (dos_qmodelindex_sibling (ptr qmi) row column)))
  (define-method (assign (qmi <QModelIndex>) (other <QModelIndex>))
    (dos_qmodelindex_assign (ptr qmi) (ptr other)))
  (define-method (delete-pointer (qmi <QModelIndex>))
    (dos_qmodelindex_delete (ptr qmi)))

  (define-class <QAbstractItemModel> (<QObject>))
  (define (new-QAbstractItemModel callback meta-object dcallback callbacks)
    (dos_qabstractitemmodel_create callback (ptr meta-object) dcallback (ptr callbacks)))
  (define-method (set-data (qaim <QAbstractItemModel>) (qmi <QModelIndex>) (qv <QVariant>) (role <QItemDataRole>))
    (dos_qabstractitemmodel_setData (ptr qaim) (ptr qmi) (ptr qv) (val role)))
  (define-method (flags (qaim <QAbstractItemModel>) (qmi <QModelIndex>))
    (dos_qabstractitemmodel_flags (ptr qaim) (ptr qmi)))
  (define-method (header-data (qaim <QAbstractItemModel>) (section <integer>) (orientation <QtOrientation>) (role <integer>))
    (dos_qabstractitemmodel_headerData (ptr qaim) section (val orientation) role))

  (define-class <QAbstractListModel> (<QObject>))
  (define (new-QAbstractListModel callback qalm dcallback callbacks)
    (dos_qabstractlistmodel_create callback (ptr qalm) dcallback (ptr callbacks)))
  (define-method (index (qalm <QAbstractListModel>) (row <integer>) (column <integer>) (parent <QModelIndex>))
    (dos_qabstractlistmodel_index (ptr qalm) row column (ptr parent)))
  (define-method (parent (qalm <QAbstractListModel>) (child <QModelIndex>))
    (dos_qabstractlistmodel_parent (ptr qalm) (ptr child)))
  (define-method (column-count (qalm <QAbstractListModel>) (parent <QModelIndex>))
    (dos_qabstractlistmodel_columnCount (ptr qalm) (ptr parent)))

  (define-class <QAbstractTableModel> (<QAbstractItemModel>))
  (define (new-QAbstractTableModel callback meta-object dcallback callbacks)
    (dos_qabstracttablemodel_create callback (ptr meta-object) dcallback (ptr callbacks)))
  (define-method (index (qatm <QAbstractTableModel>) (row <integer>) (column <integer>) (parent <QModelIndex>))
    (dos_qabstracttablemodel_index (ptr qatm) row column (ptr parent)))
  (define-method (parent (qatm <QAbstractTableModel>) (child <QModelIndex>))
    (dos_qabstracttablemodel_parent (ptr qatm) (ptr child))))