Amr Gharbeia
9350cb855e
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Deploy (Gitea) / deploy (push) Failing after 2s
Adds :cursor-pos to TUI state. New functions: - input-insert-char(ch): insert at cursor position, advance cursor - input-delete-char(): delete char before cursor (standard backspace) on-key handlers: - Left arrow: decrement cursor-pos (clamped >= 0) - Right arrow: increment cursor-pos (clamped <= buffer-len) - Character input: input-insert-char at cursor position - Backspace: input-delete-char at cursor position - Enter: reset cursor-pos to 0 view-input: cursor at visual position matching cursor-pos Test: (init-state) → (input-insert-char #\h) → (input-insert-char #\i) → (setf cursor-pos 1) → (input-insert-char #\X) → 'hXi' at pos 2
72 lines
2.6 KiB
Common Lisp
72 lines
2.6 KiB
Common Lisp
(defpackage :passepartout.gateway-tui
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(:use :cl :croatoan :passepartout :usocket :bordeaux-threads)
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(:export :tui-main :st :add-msg :now :input-string
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:queue-event :drain-queue :init-state
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:view-status :view-chat :view-input :redraw
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:on-key :on-daemon-msg :send-daemon
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:connect-daemon :disconnect-daemon
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:*tui-theme* :theme-color))
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(in-package :passepartout.gateway-tui)
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(defvar *state* nil)
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(defvar *event-queue* nil)
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(defvar *event-lock* (bt:make-lock "tui-event-lock"))
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(defvar *tui-theme*
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'(:user :green :agent :white :system :yellow :input :cyan
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:connected :green :disconnected :red :timestamp :yellow)
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"Color theme plist. Keys are semantic roles, values are Croatoan colors.")
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(defun theme-color (role)
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"Returns the Croatoan color for a semantic role."
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(or (getf *tui-theme* role) :white))
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(defun st (key) (getf *state* key))
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(defun (setf st) (val key) (setf (getf *state* key) val))
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(defun init-state ()
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(setf *state*
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(list :running t :mode :chat :connected nil :stream nil
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:input-buffer nil :input-history nil :input-hpos 0
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:messages nil :scroll-offset 0 :busy nil :cursor-pos 0
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:dirty (list nil nil nil))))
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(defun now ()
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(multiple-value-bind (s m h) (get-decoded-time)
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(declare (ignore s))
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(format nil "~2,'0d:~2,'0d" h m)))
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(defun input-string ()
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(coerce (reverse (st :input-buffer)) 'string))
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(defun input-insert-char (ch)
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"Insert character at cursor position into the input buffer."
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(let* ((buf (st :input-buffer))
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(pos (or (st :cursor-pos) 0))
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(s (coerce (reverse buf) 'string))
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(new (concatenate 'string (subseq s 0 pos) (string ch) (subseq s pos))))
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(setf (st :input-buffer) (reverse (coerce new 'list)))
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(setf (st :cursor-pos) (1+ pos))))
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(defun input-delete-char ()
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"Delete character before cursor position (standard backspace)."
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(let* ((buf (st :input-buffer))
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(pos (or (st :cursor-pos) 0)))
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(when (and buf (> pos 0))
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(let* ((s (coerce (reverse buf) 'string))
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(new (concatenate 'string (subseq s 0 (1- pos)) (subseq s pos))))
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(setf (st :input-buffer) (reverse (coerce new 'list)))
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(setf (st :cursor-pos) (1- pos))))))
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(defun add-msg (role content)
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(push (list :role role :content content :time (now)) (st :messages))
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(setf (st :dirty) (list t t nil)))
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(defun queue-event (ev)
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(bt:with-lock-held (*event-lock*) (push ev *event-queue*)))
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(defun drain-queue ()
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(bt:with-lock-held (*event-lock*)
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(let ((evs (nreverse *event-queue*)))
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(setf *event-queue* nil) evs)))
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