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f27ab1f77962146b4d281fc888a2cf94a62975ec
passepartout/org/gateway-manager.org
Amr Gharbeia 3f51a772d4
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docs: add literate prose to naming-drift aliases and HITL gateway changes 
Adds prose sections before every code block to satisfy the
prose-before-code discipline. Each backward-compatibility alias
(process-signal, perceive-gate, reason-gate, act-gate, inject-stimulus)
now has its own subsection explaining why it exists and what new code
should use instead.

Also:
- Fixes double #+end_src in core-loop-perceive.org
- Renames inject-stimulus → stimulus-inject in heartbeat-start and
  client-handle-connection (both already had aliases)
- Adds HITL interception prose to gateway-manager.org telegram/signal
  sections
- Splits Pre-Reason Handler Registry into two code blocks (defvar + defun)
  for one-per-block compliance
2026-05-03 13:58:08 -04:00

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#+TITLE: SKILL: Gateway Manager (org-skill-gateway-manager.org)
#+AUTHOR: Agent
#+FILETAGS: :skill:gateway:manager:
#+PROPERTY: header-args:lisp :tangle ../lisp/gateway-manager.lisp
* Architectural Intent
The Gateway Manager is the unified interface for all external messaging platforms. It handles Telegram, Signal, and any future gateway through a common pattern: a registry of poll/send function pairs, a configuration hash table for tokens and intervals, and a background thread per gateway that polls for new messages.
Each gateway follows the same lifecycle:
1. **Register** — the gateway's poll and send functions are registered in ~*gateway-registry*~
2. **Link** — the user provides a token; it's stored in the vault and a polling thread is started
3. **Poll** — the thread calls the poll function on an interval, injecting received messages into the pipeline
4. **Unlink** — the thread is destroyed, the config is removed
5. **Act** — when the agent needs to send a message, it dispatches to the gateway's send function via the generic actuator mechanism
* Implementation
** Platform state — configs
Storage for active gateway connections: tokens, polling threads, and intervals.
;; REPL-VERIFIED: 2026-05-03T13:00:00
#+begin_src lisp
(defvar *gateway-configs* (make-hash-table :test 'equal)
"Maps platform name → plist (:token :thread :interval :enabled)")
#+end_src
** Platform state — registry
Registration of available gateway implementations: each platform registers its poll and send functions here.
;; REPL-VERIFIED: 2026-05-03T13:00:00
#+begin_src lisp
(defvar *gateway-registry* (make-hash-table :test 'equal)
"Maps platform name → plist (:poll-fn :send-fn :default-interval)")
#+end_src
** Telegram Implementation
When a Telegram message arrives, the gateway first checks whether it is a
HITL approval/denial command via ~hitl-handle-message~. If consumed,
the message never enters the cognitive pipeline. Otherwise, it is injected
as a normal ~:user-input~ event via ~stimulus-inject~.
;; REPL-VERIFIED: 2026-05-03T13:00:00
#+begin_src lisp
(defun telegram-get-token ()
(vault-get-secret :telegram))
#+end_src
** telegram-poll
;; REPL-VERIFIED: 2026-05-03T13:00:00
#+begin_src lisp
(defun telegram-poll ()
"Polls Telegram for new messages and injects them into the harness."
(let* ((token (telegram-get-token)))
(when token
(let* ((last-id (getf (gethash "telegram" *gateway-configs*) :last-update-id 0))
(url (format nil "https://api.telegram.org/bot~a/getUpdates?offset=~a"
token (1+ last-id))))
(handler-case
(let* ((response (dex:get url))
(json (cl-json:decode-json-from-string response))
(updates (cdr (assoc :result json))))
(dolist (update updates)
(let* ((update-id (cdr (assoc :update--id update)))
(message (cdr (assoc :message update)))
(chat (cdr (assoc :chat message)))
(chat-id (cdr (assoc :id chat)))
(text (cdr (assoc :text message))))
(setf (getf (gethash "telegram" *gateway-configs*) :last-update-id) update-id)
(when (and text chat-id)
(log-message "TELEGRAM: Received message from ~a" chat-id)
(unless (ignore-errors (hitl-handle-message text :telegram))
(stimulus-inject
(list :type :EVENT
:meta (list :source :telegram :chat-id (format nil "~a" chat-id))
:payload (list :sensor :user-input :text text)))))))
(error (c) (log-message "TELEGRAM POLL ERROR: ~a" c))))))
#+end_src
** telegram-send
;; REPL-VERIFIED: 2026-05-03T13:00:00
#+begin_src lisp
(defun telegram-send (action context)
"Sends a message via Telegram."
(declare (ignore context))
(let* ((payload (getf action :payload))
(meta (getf action :meta))
(chat-id (or (getf meta :chat-id) (getf payload :chat-id) (getf action :chat-id)))
(text (or (getf payload :text) (getf action :text)))
(token (telegram-get-token)))
(when (and token chat-id text)
(log-message "TELEGRAM: Sending message to ~a..." chat-id)
(handler-case
(let ((url (format nil "https://api.telegram.org/bot~a/sendMessage" token)))
(dex:post url
:headers '(("Content-Type" . "application/json"))
:content (cl-json:encode-json-to-string
`((chat_id . ,chat-id) (text . ,text)))))
(error (c) (log-message "TELEGRAM ERROR: ~a" c))))))
#+end_src
#+end_src
** Signal Implementation
Signal messages follow the same pattern as Telegram: ~hitl-handle-message~
is called first, and only non-HITL messages are injected into the pipeline.
;; REPL-VERIFIED: 2026-05-03T13:00:00
#+begin_src lisp
(defun signal-get-account ()
(vault-get-secret :signal))
#+end_src
** signal-poll
;; REPL-VERIFIED: 2026-05-03T13:00:00
#+begin_src lisp
(defun signal-poll ()
"Polls Signal for new messages and injects them into the harness."
(let ((account (signal-get-account)))
(when account
(handler-case
(let* ((output (uiop:run-program (list "signal-cli" "-u" account "receive" "--json")
:output :string :error-output :string :ignore-error-status t))
(lines (cl-ppcre:split "\\n" output)))
(dolist (line lines)
(when (and line (> (length line) 0))
(let* ((json (ignore-errors (cl-json:decode-json-from-string line)))
(envelope (cdr (assoc :envelope json)))
(source (cdr (assoc :source envelope)))
(data-message (cdr (assoc :data-message envelope)))
(text (cdr (assoc :message data-message))))
(when (and source text)
(log-message "SIGNAL: Received message from ~a" source)
(unless (ignore-errors (hitl-handle-message text :signal))
(stimulus-inject
(list :type :EVENT
:meta (list :source :signal :chat-id source)
:payload (list :sensor :user-input :text text))))))))
(error (c) (log-message "SIGNAL POLL ERROR: ~a" c))))))
#+end_src
** signal-send
;; REPL-VERIFIED: 2026-05-03T13:00:00
#+begin_src lisp
(defun signal-send (action context)
"Sends a message via Signal."
(declare (ignore context))
(let* ((payload (getf action :payload))
(meta (getf action :meta))
(chat-id (or (getf meta :chat-id) (getf payload :chat-id) (getf action :chat-id)))
(text (or (getf payload :text) (getf action :text)))
(account (signal-get-account)))
(when (and account chat-id text)
(log-message "SIGNAL: Sending message to ~a..." chat-id)
(handler-case
(uiop:run-program (list "signal-cli" "-u" account "send" "-m" text chat-id)
:output :string :error-output :string)
(error (c) (log-message "SIGNAL ERROR: ~a" c))))))
#+end_src
#+end_src
** Gateway Registry Initialization
;; REPL-VERIFIED: 2026-05-03T13:00:00
#+begin_src lisp
(defun gateway-registry-initialize ()
"Registers all built-in gateway handlers."
(setf (gethash "telegram" *gateway-registry*)
(list :poll-fn #'telegram-poll
:send-fn #'telegram-send
:default-interval 3))
(setf (gethash "signal" *gateway-registry*)
(list :poll-fn #'signal-poll
:send-fn #'signal-send
:default-interval 5)))
#+end_src
** Core gateway functions
*** Configuration check (gateway-configured-p)
Returns T if a platform has a stored token in ~*gateway-configs*~.
;; REPL-VERIFIED: 2026-05-03T13:00:00
#+begin_src lisp
(defun gateway-configured-p (platform)
"Returns T if a platform has a stored token."
(let ((config (gethash platform *gateway-configs*)))
(and config (getf config :token))))
#+end_src
*** Active check (gateway-active-p)
Returns T if a platform's polling thread is alive.
;; REPL-VERIFIED: 2026-05-03T13:00:00
#+begin_src lisp
(defun gateway-active-p (platform)
"Returns T if a platform's polling thread is alive."
(let ((config (gethash platform *gateway-configs*)))
(and config
(getf config :thread)
(bt:thread-alive-p (getf config :thread)))))
#+end_src
*** Link a gateway (gateway-link)
The main entry point for linking. Validates the registry entry, stores the token in the vault, starts the polling thread, and updates the config.
;; REPL-VERIFIED: 2026-05-03T13:00:00
#+begin_src lisp
(defun gateway-link (platform token)
"Links a platform with a token and starts polling."
(let ((platform-lc (string-downcase platform)))
(unless (gethash platform-lc *gateway-registry*)
(error "Unknown platform: ~a. Available: ~{~a~^, ~}"
platform (loop for k being the hash-keys of *gateway-registry* collect k)))
(when (or (null token) (zerop (length token)))
(error "Token cannot be empty"))
(log-message "GATEWAY: Linking to ~a..." platform-lc)
(gateway-unlink platform-lc)
(let* ((registry-entry (gethash platform-lc *gateway-registry*))
(interval (or (getf registry-entry :default-interval) 5)))
(setf (gethash platform-lc *gateway-configs*)
(list :token token :interval interval :enabled t))
(vault-set-secret (intern (string-upcase platform-lc) :keyword) token)
(gateway-start platform-lc)
(log-message "GATEWAY: Successfully linked ~a" platform-lc)
(format t "Successfully linked ~a gateway. Token stored securely.~%" platform-lc)
t)))
#+end_src
*** Unlink a gateway (gateway-unlink)
Stops the polling thread and removes the config entry.
;; REPL-VERIFIED: 2026-05-03T13:00:00
#+begin_src lisp
(defun gateway-unlink (platform)
"Unlinks a platform and stops its polling thread."
(let ((platform-lc (string-downcase platform)))
(gateway-stop platform-lc)
(remhash platform-lc *gateway-configs*)
(log-message "GATEWAY: Unlinked ~a" platform-lc)
(format t "Successfully unlinked ~a gateway.~%" platform-lc)
t))
#+end_src
*** Start polling (gateway-start)
Creates a background thread that calls the platform's poll function on an interval. The thread checks the ~:enabled~ flag on each cycle so it can be stopped cleanly via ~gateway-stop~.
;; REPL-VERIFIED: 2026-05-03T13:00:00
#+begin_src lisp
(defun gateway-start (platform)
"Starts the polling thread for a linked gateway."
(let ((platform-lc (string-downcase platform)))
(let ((config (gethash platform-lc *gateway-configs*)))
(when (and config (getf config :enabled) (not (gateway-active-p platform-lc)))
(let ((poll-fn (getf (gethash platform-lc *gateway-registry*) :poll-fn)))
(when poll-fn
(let ((interval (getf config :interval)))
(setf (getf config :thread)
(bt:make-thread
(lambda ()
(loop
(when (getf (gethash platform-lc *gateway-configs*) :enabled)
(funcall poll-fn))
(sleep interval)))
:name (format nil "passepartout-~a-gateway" platform-lc)))
(log-message "GATEWAY: Started ~a polling (interval: ~as)" platform-lc interval)))))))))
#+end_src
*** Stop polling (gateway-stop)
Destroys the polling thread and nulls the thread reference.
;; REPL-VERIFIED: 2026-05-03T13:00:00
#+begin_src lisp
(defun gateway-stop (platform)
"Stops the polling thread for a gateway."
(let ((platform-lc (string-downcase platform)))
(let ((config (gethash platform-lc *gateway-configs*)))
(when (and config (getf config :thread))
(when (bt:thread-alive-p (getf config :thread))
(log-message "GATEWAY: Stopping ~a polling thread" platform-lc)
(bt:destroy-thread (getf config :thread))))
(setf (getf config :thread) nil))))
#+end_src
*** List gateways (gateway-list)
Returns a list of plists, one per registered platform, with :platform, :configured, and :active keys.
;; REPL-VERIFIED: 2026-05-03T13:00:00
#+begin_src lisp
(defun gateway-list ()
"Returns a list of all gateways with their status."
(loop for platform being the hash-keys of *gateway-registry*
collect (let ((configured (gateway-configured-p platform))
(active (gateway-active-p platform)))
(list :platform platform
:configured configured
:active active))))
#+end_src
*** Print gateways (gateway-list-print)
Formats ~gateway-list~ for display in the CLI.
;; REPL-VERIFIED: 2026-05-03T13:00:00
#+begin_src lisp
(defun gateway-list-print ()
"Prints a formatted table of gateways."
(format t "~%")
(format t " ~20@A ~12@A ~10@A~%" "PLATFORM" "CONFIGURED" "STATUS")
(dolist (gw (gateway-list))
(format t " ~20@A ~12@A ~10@A~%"
(getf gw :platform)
(if (getf gw :configured) "yes" "no")
(cond
((getf gw :active) "ACTIVE")
((getf gw :configured) "stopped")
(t "not linked"))))
(format t "~%"))
#+end_src
*** Start all configured gateways (gateway-start-all)
Called during boot to start all gateways that have tokens stored in their configs.
;; REPL-VERIFIED: 2026-05-03T13:00:00
#+begin_src lisp
(defun gateway-start-all ()
"Called at boot to start all configured gateways."
(dolist (config (loop for platform being the hash-keys of *gateway-configs*
collect (list platform (gethash platform *gateway-configs*))))
(destructuring-bind (platform config) config
(when (and (getf config :enabled) (not (gateway-active-p platform)))
(gateway-start platform)))))
#+end_src
** Actuator Registration
Register :telegram and :signal as actuators for outbound messages.
#+begin_src lisp
(register-actuator :telegram #'telegram-send)
(register-actuator :signal #'signal-send)
#+end_src
** Skill Registration
#+begin_src lisp
(defskill :passepartout-gateway-manager
:priority 150
:trigger (lambda (ctx) (declare (ignore ctx)) nil))
#+end_src
** Initialization
Initialize registry and start configured gateways on skill load.
#+begin_src lisp
(gateway-registry-initialize)
(gateway-start-all)
#+end_src
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