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457 lines
17 KiB
Common Lisp
457 lines
17 KiB
Common Lisp
(in-package :lora)
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(defvar *settings* (list :modem-preset :long-fast))
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(defvar *channel-name* nil)
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(defvar *my-channel* nil)
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(defvar *channels* nil)
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(defvar *my-node-info* nil)
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(defvar *node-infos* nil)
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(defvar *receiver* nil)
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(defvar *config-lora* nil)
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(defvar *ble-names* nil)
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(defvar *print-json* t)
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(defun ini ()
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(setf *receiver* (app:setting :latest-receiver)
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*channel-name* (or (app:setting :channel-name)
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"LongFast"))
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(q> |text| ui:*channel-name* *channel-name*))
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;;; header
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(defun lsb (size)
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(ldb (byte 8 0) size))
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(defun msb (size)
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(ldb (byte 8 8) size))
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(defun header (size)
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(vector #x94 #xc3 (msb size) (lsb size)))
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;;; ini/send/receive
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(defconstant +broadcast-id+ #xffffffff)
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(defparameter *broadcast-name* "ffff")
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(defvar *config-id* 0)
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(defvar *config-complete* nil)
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(defvar *notify-id* nil)
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(defvar *ready* nil)
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(defvar *reading* nil)
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(defvar *received* nil)
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(defvar *received-faulty* nil)
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(defvar *schedule-clear* t)
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(defun to-bytes (list)
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(make-array (length list)
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:element-type '(unsigned-byte 8)
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:initial-contents list))
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(defun start-device-discovery (&optional (name (or (app:setting :device) "")))
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(setf *schedule-clear* t)
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(setf *ble-names* nil)
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(unless radios:*found*
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(radios:clear))
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(qt:start-device-discovery qt:*cpp* name)
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(q> |playing| ui:*busy* t))
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(defun get-node-config ()
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;; see also Timer in 'qml/ext/Group.qml'
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(when *ready*
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(setf *schedule-clear* t)
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(setf *config-complete* nil
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*channels* nil
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*node-infos* nil)
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(incf *config-id*)
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(send-to-radio
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(me:make-to-radio :want-config-id *config-id*))
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(q> |playing| ui:*busy* t)))
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(defun set-ready (&optional ready name ble-names) ; see Qt
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(setf *ready* ready)
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(when ready
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(setf *ble-names* ble-names)
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(app:toast (x:cc (tr "radio") ": " name) 2)
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(get-node-config))
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(values))
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(defun add-line-breaks (text)
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(x:string-substitute "<br>" (string #\Newline) text))
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(defun my-name ()
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(when *config-complete*
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(me:short-name (me:user *my-node-info*))))
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(defun my-num ()
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(when *config-complete*
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(me:num *my-node-info*)))
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(defun to-radio (&rest args &key from to id hop-limit want-ack priority decoded)
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(me:make-to-radio
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:packet (apply 'me:make-mesh-packet args)))
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(defun send-message (text)
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"Sends TEXT to radio and adds it to QML item model."
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;; check special keywords first
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(flet ((clear ()
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(q! |clear| ui:*edit*)))
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(cond #+mobile
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((string= ":s" text) ; for Lisp hackers only
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(start-swank)
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(clear))
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#+mobile
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((string= ":w" text) ; for saving/restoring message DB, settings, map tiles
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(s-http-server:start)
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(clear))
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#+mobile
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((string= ":ws" text) ; stop web-server after save/restore
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(s-http-server:stop)
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(clear))
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(t
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(msg:check-utf8-length (q< |text| ui:*edit*))
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(unless (q< |tooLong| ui:*edit*)
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(msg:new-message-id)
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(when (stringp *receiver*)
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(setf *receiver* (name-to-node *receiver*)))
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(send-to-radio
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(to-radio :from (my-num)
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:to *receiver*
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:id msg:*message-id*
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:want-ack t
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:decoded (me:make-data
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:portnum :text-message-app
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:payload (qto-utf8 text))))
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(msg:add-message
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(list :receiver (node-to-name *receiver*)
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:sender (my-name)
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:timestamp (get-universal-time)
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:hour (timestamp-to-hour)
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:text (add-line-breaks text)
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:mid msg:*message-id*
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:ack-state (position :sending msg:*states*)
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:me t)))))))
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(defun read-radio ()
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"Triggers a read on the radio. Will call RECEIVED-FROM-RADIO on success."
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(qt:read* qt:*cpp*))
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(defun send-to-radio (to-radio)
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"Sends passed TO-RADIO, preceded by a header."
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(when *print-json*
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(pr:print-json to-radio))
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(let ((bytes (pr:serialize-to-bytes to-radio)))
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(qt:write* qt:*cpp* (header (length bytes)))
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(qt:write* qt:*cpp* bytes)))
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(defun received-from-radio (bytes &optional notified) ; see Qt
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(if notified
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(progn
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(setf *notify-id* bytes)
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(read-radio))
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(multiple-value-bind (from-radio error)
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(ignore-errors (pr:deserialize-from-bytes 'me:from-radio bytes))
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(setf *reading* t)
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(if from-radio
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(progn
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(when *print-json*
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(pr:print-json from-radio))
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(push from-radio *received*))
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(progn
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(qlog "received faulty bytes: ~A" error)
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(push bytes *received-faulty*)))))
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(values))
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(defun receiving-done () ; see Qt
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(setf *reading* nil)
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(process-received)
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(values))
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(defun process-saved-packets (packets) ; see Qt
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"Called when app changes from background to foreground (mobile only)."
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(let ((app:*background-mode* t))
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(dolist (packet packets)
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(received-from-radio packet))
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(receiving-done))
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;; this will show eventual red circles with numbers of unread messages
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(when (group:unread-messages-p)
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(app:change-setting :latest-receiver nil)
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(q> |currentIndex| ui:*group-view* -1)
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(q> |currentIndex| ui:*main-view* 0)) ; 'Group'
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(values))
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(defun node-to-name (num)
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(if (= +broadcast-id+ num)
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*broadcast-name*
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(dolist (info *node-infos*)
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(when (= num (me:num info))
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(return (me:short-name (me:user info)))))))
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(defun name-to-node (name)
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(dolist (info *node-infos*)
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(when (string= name (me:short-name (me:user info)))
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(return (me:num info)))))
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(defun timestamp-to-hour (&optional (secs (get-universal-time)))
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(multiple-value-bind (_ m h)
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(decode-universal-time secs)
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(format nil "~2,'0D:~2,'0D" h m)))
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(defun set-gps-position (node pos)
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(flet ((to-float (i)
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(float (/ i (expt 10 7)))))
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(when (me:latitude-i pos)
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(loc:set-position node (list :lat (to-float (me:latitude-i pos))
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:lon (to-float (me:longitude-i pos))
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:alt (me:altitude pos)
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:time (me:time pos))))))
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(let (echo-text echo-receiver)
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(defun process-received ()
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"Walks *RECEIVED* FROM-RADIOs and saves relevant data."
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(setf *received* (nreverse *received*))
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(dolist (struct *received*)
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(cond ((me:from-radio.has-packet struct)
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(let* ((packet (me:from-radio.packet struct))
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(decoded (me:decoded packet)))
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(when decoded
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(let ((payload (me:payload decoded)))
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(case (me:portnum decoded)
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;; text-message
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(:text-message-app
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(let ((timestamp (get-universal-time))
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(mid (me:id packet))
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(text (qfrom-utf8 payload)))
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(setf msg:*message-id* (max mid msg:*message-id*))
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(if (x:starts-with ":e" text) ; 'echo'
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(progn
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(setf echo-text (subseq text #.(length ":e"))
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echo-receiver (me:from packet))
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(qsingle-shot 1000 (lambda ()
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(let ((*receiver* echo-receiver))
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(send-message (x:cc "<b>:e</b>" echo-text))))))
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(progn
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(when (x:starts-with "<b>:e</b>" text)
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(setf text (msg:echo-message text (me:from packet) (me:rx-snr packet) (me:rx-rssi packet))))
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(msg:add-message
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(list :receiver (my-name)
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:sender (node-to-name (me:from packet))
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:timestamp timestamp
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:hour (timestamp-to-hour timestamp)
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:text (add-line-breaks text)
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:mid mid))))))
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;; for :ack-state (acknowledgement state)
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(:routing-app
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(let ((state (me:routing.error-reason
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(pr:deserialize-from-bytes 'me:routing payload))))
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(msg:change-state (case state
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(:none
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:received)
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(t
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(qlog "message state changed: ~A" state)
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:not-received))
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(me:request-id decoded))))
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;; GPS location
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(:position-app
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(unless (zerop (length payload))
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(set-gps-position (me:from packet)
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(pr:deserialize-from-bytes 'me:position payload)))))))))
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;; my-info
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((me:from-radio.has-my-info struct)
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(setf *my-node-info* (me:my-node-num (me:my-info struct))))
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;; node-info
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((me:from-radio.has-node-info struct)
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(let ((info (me:node-info struct)))
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(if (eql *my-node-info* (me:num info))
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(setf *my-node-info* info)
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(setf *node-infos*
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(nconc *node-infos* (list info))))
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(x:when-it (me:position info)
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(set-gps-position (me:num info) x:it))
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(when *schedule-clear*
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(radios:clear)
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(group:clear))
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(let ((name (me:short-name (me:user info)))
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(current (= (me:num info)
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(me:num *my-node-info*)))
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(metrics (me:device-metrics info)))
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(unless current
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(group:add-person
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(list :radio-name name
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:custom-name (or (app:setting name :custom-name) "")
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:node-num (me:num info)
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:current (equal name (app:setting :latest-receiver)))))
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(when (find name *ble-names* :test 'string=)
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(setf radios:*found* t)
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(radios:add-radio
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(list :name name
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:hw-model (symbol-name (me:hw-model (me:user info)))
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:battery-level (float (if metrics (me:battery-level metrics) 0))
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:current current))
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(when current
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(app:update-current-device name))))))
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;; channel
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((me:from-radio.has-channel struct)
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(let ((channel (me:channel struct)))
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(when (eql :primary (me:role channel))
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(setf *my-channel* channel))
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(push channel *channels*)))
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;; config lora
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((me:from-radio.has-config struct)
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(let ((config (me:config struct)))
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(when (me:config.has-lora config)
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(setf *config-lora* (me:lora config)))))
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;; config-complete-id
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((me:from-radio.has-config-complete-id struct)
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(when (= *config-id* (me:config-complete-id struct))
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(setf *config-complete* t)
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(q> |playing| ui:*busy* nil)
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(qlog "config-complete id: ~A" *config-id*)
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(when (and *my-channel*
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(string/= *channel-name*
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(me:name (me:settings *my-channel*))))
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(qlater 'config-device))))))
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(setf *received* nil)))
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(defun send-admin (admin-message)
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(send-to-radio
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(to-radio :to (me:num *my-node-info*)
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:id (msg:new-message-id)
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:hop-limit 3
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:want-ack t
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:priority :reliable
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:decoded (me:make-data
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:portnum :admin-app
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:payload (pr:serialize-to-bytes admin-message)
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:want-response t))))
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(defun set-channel (channel)
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(send-admin (me:make-admin-message
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:set-channel (setf *my-channel* channel))))
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(defun change-lora-config ()
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(send-admin
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(me:make-admin-message
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:set-config (me:make-config
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:lora (me:make-config.lo-ra-config
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:use-preset t
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:modem-preset (app:setting :modem-preset)
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:region (app:setting :region)
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:hop-limit 3
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:tx-enabled t
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:tx-power 27
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:sx126x-rx-boosted-gain t))))
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;; device will reboot after changing lora config
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(app:toast (tr "waiting for reboot..."))
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(qsleep 5)
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(q> |playing| ui:*busy* t)
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(qsleep 20)
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(start-device-discovery))
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(defun change-region (&optional (region "")) ; see QML
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(cond ((x:empty-string region)
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(qlater 'radios:choose-region))
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((string/= region (app:setting :region))
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(app:change-setting :region (app:kw region))
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(qlater 'change-lora-config)))
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(values))
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(defun change-modem-preset (modem-preset) ; see QML
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(app:change-setting :modem-preset (app:kw modem-preset))
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(qlater 'change-lora-config)
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(values))
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(defun config-device ()
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"Will be called once for every new device, in order to be able to
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communicate on the same channel."
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;; channel settings for direct messages
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(set-channel (me:make-channel
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:settings (me:make-channel-settings
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:name *channel-name*
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:psk (to-bytes (list 1))) ; encrypted with fixed (known) key
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:role :primary))
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(change-lora-config))
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(defun send-position (pos &optional (to (my-num)))
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"Send GPS position to radio."
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(flet ((to-int (f)
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(floor (* f (expt 10 7)))))
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(send-to-radio
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(to-radio :from (my-num)
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:to to
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:hop-limit 3
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:priority :background
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:decoded (me:make-data
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:portnum :position-app
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:payload (pr:serialize-to-bytes
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(if pos
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(me:make-position
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:latitude-i (to-int (getf pos :lat))
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:longitude-i (to-int (getf pos :lon))
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:time (getf pos :time))
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(me:make-position))) ; unset
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:want-response t)))))
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(defun channel-to-url (&optional channel)
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(let ((base64 (base64:usb8-array-to-base64-string
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(pr:serialize-to-bytes (or channel *my-channel*)))))
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;; remove padding, substitute characters as by definition
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(x:cc "https:/meshtastic.org/e/#"
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(string-right-trim "=" (substitute #\- #\+ (substitute #\_ #\/ base64))))))
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(defun url-to-channel (url &optional (set t))
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(let ((base64 (subseq url (+ 2 (search "/#" url)))))
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;; re-add padding
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(setf base64 (x:cc base64
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(make-string (mod (length base64) 4) :initial-element #\=)))
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(let ((channel (pr:deserialize-from-bytes
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(base64:base64-string-to-usb8-array base64))))
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(if set
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(set-channel channel)
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channel))))
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(defun change-receiver (receiver) ; see QML
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(setf *receiver* receiver)
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(app:change-setting :latest-receiver (node-to-name *receiver*))
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(msg:receiver-changed)
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(group:receiver-changed)
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(values))
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(defun edit-channel-name () ; see QML
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(if *config-complete*
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(app:input-dialog
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(tr "Channel name:") 'channel-name-changed
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:title (tr "Name")
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:text *channel-name*
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:max-length #.(float 12))
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(app:message-dialog (tr "Radio not ready yet."))))
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(defun channel-name-changed (ok)
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(when ok
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(let ((name (q< |text| ui:*dialog-line-edit*)))
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(when (and (not (x:empty-string name))
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(string/= name *channel-name*))
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(setf *channel-name* name)
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(q> |text| ui:*channel-name* *channel-name*)
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(app:change-setting :channel-name name)
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(config-device)))))
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(defun edit-device-filter () ; see QML
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(app:input-dialog
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(tr "Device filter:") 'device-filter-changed
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:title (tr "Filter")
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:text (or (app:setting :device-filter) "meshtastic")))
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(defun device-filter-changed (ok)
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(when ok
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(let ((name (q< |text| ui:*dialog-line-edit*)))
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(qt:set-device-filter qt:*cpp* name)
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(app:change-setting :device-filter name))))
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(defun keywords (name)
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(pr:enum-keywords (ecase name
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(:modem-preset
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'me:config.lo-ra-config.modem-preset)
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(:region-code
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'me:config.lo-ra-config.region-code))))
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