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+;;; yggdrasil-ui.el --- TextUI dashboard for Yggdrasil -*- lexical-binding: t -*-
+
+;; Copyright (C) 2026 cashmere
+
+;; Author: cashmere
+;; Version: 0.1.0
+;; Package-Requires: ((emacs "29.1") (textui "0.5.1"))
+;; Keywords: comm, tools
+
+;;; Commentary:
+
+;; A small TextUI dashboard for the local Yggdrasil node. It reads
+;; `yggdrasilctl -json getSelf' and `getPeers', shows the known .ygg
+;; hosts from the personal mesh, and offers one-key refresh plus async
+;; ping checks.
+
+;;; Code:
+
+(require 'cl-lib)
+(require 'json)
+(require 'subr-x)
+(require 'textui)
+(require 'textui-widgets)
+
+(declare-function evil-local-set-key "evil-core" (state key def))
+
+(defgroup yggdrasil-ui nil
+ "TextUI dashboard for the Yggdrasil mesh."
+ :group 'applications
+ :prefix "yggdrasil-ui-")
+
+(defcustom yggdrasil-ui-control-program "yggdrasilctl"
+ "Program used to query the Yggdrasil admin API."
+ :type 'string
+ :group 'yggdrasil-ui)
+
+(defcustom yggdrasil-ui-service-program "systemctl"
+ "Program used to query the Yggdrasil service state."
+ :type 'string
+ :group 'yggdrasil-ui)
+
+(defcustom yggdrasil-ui-service-name "yggdrasil"
+ "System service name for Yggdrasil."
+ :type 'string
+ :group 'yggdrasil-ui)
+
+(defcustom yggdrasil-ui-known-hosts
+ '(("chiefsosa" . "201:6904:7fcb:6fa6:b869:48cc:a863:e9a6")
+ ("md" . "202:5e97:a5ba:a207:ce38:ac4a:ca3:8f86")
+ ("sportmacher" . "200:aa5e:2bcd:b7b3:7852:a02f:77bc:658a")
+ ("moneyspread" . "200:1c8c:1f5:f25d:1a9f:c191:e656:9636"))
+ "Known hosts in the private Yggdrasil mesh."
+ :type '(alist :key-type string :value-type string)
+ :group 'yggdrasil-ui)
+
+(defcustom yggdrasil-ui-reference-file
+ (expand-file-name "~/nix/docs/yggdrasil-vpn.org")
+ "Org reference file for the local Yggdrasil mesh."
+ :type 'file
+ :group 'yggdrasil-ui)
+
+(defface yggdrasil-ui-strong '((t :inherit bold))
+ "Structural text."
+ :group 'yggdrasil-ui)
+
+(defface yggdrasil-ui-faded '((t :inherit shadow))
+ "Secondary text."
+ :group 'yggdrasil-ui)
+
+(defface yggdrasil-ui-salient '((t :inherit link))
+ "Healthy or actionable text."
+ :group 'yggdrasil-ui)
+
+(defface yggdrasil-ui-warning '((t :inherit font-lock-warning-face))
+ "Degraded status text."
+ :group 'yggdrasil-ui)
+
+(defface yggdrasil-ui-critical '((t :inherit error))
+ "Failed status text."
+ :group 'yggdrasil-ui)
+
+(defconst yggdrasil-ui--buffer-name "*yggdrasil*")
+
+(defvar yggdrasil-ui--buffer nil
+ "Live Yggdrasil TextUI buffer.")
+
+(defun yggdrasil-ui--item (value &optional face)
+ "Return a single-line item element for VALUE with optional FACE."
+ `(:type item
+ :format "%v"
+ :value ,(if face (propertize value 'face face) value)))
+
+(defun yggdrasil-ui--fixed-item (value width &optional face)
+ "Return an item fitted to WIDTH cells."
+ `(:type item
+ :format "%v"
+ :value ,(yggdrasil-ui--fit value width face)
+ :layout (:width ,width)))
+
+(defun yggdrasil-ui--text (value &optional layout)
+ "Return a wrapping text element for VALUE."
+ `(:type :text
+ :value ,value
+ :layout ,(or layout '(:min-width 24 :grow 1))))
+
+(defun yggdrasil-ui--button (label action focus-id &optional variant)
+ "Return a TextUI button LABEL calling ACTION."
+ `(:type textui-button
+ :value ,label
+ :variant ,variant
+ :layout (:focus-id ,focus-id)
+ :action ,(lambda (&rest _) (funcall action))))
+
+(defun yggdrasil-ui--fit (string width &optional face)
+ "Return STRING truncated or padded to WIDTH cells, with optional FACE."
+ (let* ((width (max 0 width))
+ (value (truncate-string-to-width (format "%s" (or string ""))
+ width nil nil "..."))
+ (padded (concat value
+ (make-string (max 0 (- width (string-width value)))
+ ?\s))))
+ (if face (propertize padded 'face face) padded)))
+
+(defun yggdrasil-ui--plain-fit (string width)
+ "Return unpropertized STRING fitted to WIDTH cells."
+ (substring-no-properties (yggdrasil-ui--fit string width)))
+
+(defun yggdrasil-ui--cells (&rest cells)
+ "Return a row from CELLS.
+Each cell is (VALUE WIDTH &optional FACE)."
+ (mapconcat (lambda (cell)
+ (apply #'yggdrasil-ui--fit cell))
+ cells
+ " "))
+
+(defun yggdrasil-ui--rule (width)
+ "Return a quiet horizontal rule fitted to WIDTH."
+ (yggdrasil-ui--item
+ (make-string (max 12 (min width 140)) ?-)
+ 'yggdrasil-ui-faded))
+
+(defun yggdrasil-ui--run (&rest args)
+ "Run `yggdrasilctl -json' with ARGS.
+Return (EXIT OUTPUT)."
+ (with-temp-buffer
+ (list (condition-case nil
+ (apply #'call-process yggdrasil-ui-control-program nil t nil
+ (cons "-json" args))
+ (error 127))
+ (string-trim (buffer-string)))))
+
+(defun yggdrasil-ui--json (&rest args)
+ "Run yggdrasilctl ARGS and decode JSON.
+Return (ok VALUE) or (error MESSAGE)."
+ (pcase-let ((`(,code ,out) (apply #'yggdrasil-ui--run args)))
+ (if (zerop code)
+ (condition-case err
+ (list 'ok (json-parse-string out
+ :object-type 'alist
+ :array-type 'list
+ :null-object nil
+ :false-object nil))
+ (error (list 'error (error-message-string err))))
+ (list 'error (if (string-empty-p out)
+ (format "%s exited %s" yggdrasil-ui-control-program code)
+ out)))))
+
+(defun yggdrasil-ui--service-state ()
+ "Return the local service state as a string."
+ (with-temp-buffer
+ (let ((code (condition-case nil
+ (call-process yggdrasil-ui-service-program nil t nil
+ "is-active" yggdrasil-ui-service-name)
+ (error 127)))
+ (out (string-trim (buffer-string))))
+ (cond ((zerop code) out)
+ ((string-empty-p out) "unknown")
+ (t out)))))
+
+(defun yggdrasil-ui--snapshot ()
+ "Collect current Yggdrasil status."
+ (let ((self (yggdrasil-ui--json "getSelf"))
+ (peers (yggdrasil-ui--json "getPeers")))
+ (list :updated (format-time-string "%Y-%m-%d %H:%M:%S")
+ :service (yggdrasil-ui--service-state)
+ :self (and (eq (car self) 'ok) (cadr self))
+ :self-error (and (eq (car self) 'error) (cadr self))
+ :peers (and (eq (car peers) 'ok) (alist-get 'peers (cadr peers)))
+ :peers-error (and (eq (car peers) 'error) (cadr peers))
+ :pings nil)))
+
+(defun yggdrasil-ui--format-bytes (bytes)
+ "Format BYTES as a compact byte count."
+ (let ((n (float (or bytes 0)))
+ (units '("B" "KB" "MB" "GB" "TB")))
+ (while (and (>= n 1024.0) (cdr units))
+ (setq n (/ n 1024.0)
+ units (cdr units)))
+ (if (string= (car units) "B")
+ (format "%dB" (truncate n))
+ (format "%.1f%s" n (car units)))))
+
+(defun yggdrasil-ui--format-seconds (seconds)
+ "Format SECONDS as uptime."
+ (let* ((n (truncate (or seconds 0)))
+ (days (/ n 86400))
+ (hours (/ (% n 86400) 3600))
+ (mins (/ (% n 3600) 60)))
+ (cond ((> days 0) (format "%dd %dh" days hours))
+ ((> hours 0) (format "%dh %dm" hours mins))
+ (t (format "%dm" mins)))))
+
+(defun yggdrasil-ui--format-latency (nsec)
+ "Format nanosecond latency NSEC as milliseconds."
+ (if nsec
+ (format "%.2fms" (/ (float nsec) 1000000.0))
+ "-"))
+
+(defun yggdrasil-ui--short-key (key)
+ "Return a compact display form for public KEY."
+ (cond ((not (stringp key)) "-")
+ ((string-empty-p key) "-")
+ ((<= (length key) 20) key)
+ (t (format "%s...%s"
+ (substring key 0 12)
+ (substring key -8)))))
+
+(defun yggdrasil-ui--up-peers (peers)
+ "Count peers with an active connection in PEERS."
+ (cl-count-if (lambda (peer) (alist-get 'up peer)) peers))
+
+(defun yggdrasil-ui--state-face (state)
+ "Return a face for STATE."
+ (cond ((or (eq state t)
+ (eq state 'up)
+ (member state '("active" "Up")))
+ 'yggdrasil-ui-salient)
+ ((or (null state)
+ (eq state 'down)
+ (member state '("inactive" "Down")))
+ 'yggdrasil-ui-critical)
+ (t 'yggdrasil-ui-warning)))
+
+(defun yggdrasil-ui--host-ping-state (host)
+ "Return latest ping state for HOST."
+ (or (cdr (assoc host (plist-get textui-state :pings))) "idle"))
+
+(defun yggdrasil-ui--set-ping (buffer host value)
+ "Store ping VALUE for HOST in BUFFER."
+ (textui-update
+ buffer
+ (lambda (state)
+ (let* ((next (copy-sequence state))
+ (pings (copy-tree (plist-get next :pings))))
+ (setf (alist-get host pings nil nil #'equal) value)
+ (plist-put next :pings pings)))))
+
+(defun yggdrasil-ui--ping-host (host)
+ "Ping HOST.ygg asynchronously and update the dashboard."
+ (let* ((buffer (current-buffer))
+ (target (concat host ".ygg"))
+ (process-buffer (generate-new-buffer (format " *yggdrasil-ping:%s*" host))))
+ (yggdrasil-ui--set-ping buffer host "checking")
+ (make-process
+ :name (format "yggdrasil-ping:%s" host)
+ :buffer process-buffer
+ :command (list "ping" "-6" "-c" "2" target)
+ :noquery t
+ :sentinel
+ (lambda (proc _event)
+ (when (memq (process-status proc) '(exit signal))
+ (let ((code (process-exit-status proc))
+ (out (when (buffer-live-p (process-buffer proc))
+ (with-current-buffer (process-buffer proc)
+ (buffer-string)))))
+ (when (buffer-live-p process-buffer)
+ (kill-buffer process-buffer))
+ (when (buffer-live-p buffer)
+ (with-current-buffer buffer
+ (yggdrasil-ui--set-ping
+ buffer host
+ (if (zerop code)
+ (if (and out (string-match "time=\\([0-9.]+ ms\\)" out))
+ (concat "ok " (match-string 1 out))
+ "ok")
+ "failed"))))))))))
+
+(defun yggdrasil-ui-ping-all ()
+ "Ping every known Yggdrasil host."
+ (interactive)
+ (dolist (host yggdrasil-ui-known-hosts)
+ (yggdrasil-ui--ping-host (car host))))
+
+(defun yggdrasil-ui-copy-host ()
+ "Copy a known .ygg hostname."
+ (interactive)
+ (let* ((host (completing-read "Copy host: "
+ (mapcar #'car yggdrasil-ui-known-hosts)
+ nil t))
+ (name (concat host ".ygg")))
+ (kill-new name)
+ (message "Copied %s" name)))
+
+(defun yggdrasil-ui--copy-value (label value)
+ "Copy VALUE to the kill ring and report LABEL."
+ (kill-new value)
+ (message "Copied %s" label))
+
+(defun yggdrasil-ui-refresh ()
+ "Refresh the Yggdrasil dashboard."
+ (interactive)
+ (let ((buffer (or (and (derived-mode-p 'textui-mode) (current-buffer))
+ yggdrasil-ui--buffer)))
+ (unless (buffer-live-p buffer)
+ (user-error "No live yggdrasil-ui buffer"))
+ (textui-update buffer (lambda (_state) (yggdrasil-ui--snapshot)))))
+
+(defun yggdrasil-ui-open-reference ()
+ "Open the local Yggdrasil reference file."
+ (interactive)
+ (find-file yggdrasil-ui-reference-file))
+
+(defun yggdrasil-ui--install-keys ()
+ "Install dashboard-local keys."
+ (let ((map (copy-keymap textui-mode-map)))
+ (define-key map (kbd "r") #'yggdrasil-ui-refresh)
+ (define-key map (kbd "p") #'yggdrasil-ui-ping-all)
+ (define-key map (kbd "c") #'yggdrasil-ui-copy-host)
+ (define-key map (kbd "d") #'yggdrasil-ui-open-reference)
+ (define-key map (kbd "q") #'quit-window)
+ (use-local-map map)
+ (when (featurep 'evil)
+ (dolist (state '(normal motion))
+ (evil-local-set-key state (kbd "r") #'yggdrasil-ui-refresh)
+ (evil-local-set-key state (kbd "p") #'yggdrasil-ui-ping-all)
+ (evil-local-set-key state (kbd "c") #'yggdrasil-ui-copy-host)
+ (evil-local-set-key state (kbd "d") #'yggdrasil-ui-open-reference)
+ (evil-local-set-key state (kbd "q") #'quit-window)))))
+
+(defun yggdrasil-ui--toolbar (state width)
+ "Render dashboard toolbar for STATE at WIDTH."
+ (let* ((service (plist-get state :service))
+ (peers (plist-get state :peers))
+ (self (plist-get state :self))
+ (up (yggdrasil-ui--up-peers peers))
+ (summary
+ (format "yggdrasil service %s peers %d/%d routes %s addr %s"
+ service up (length peers)
+ (or (alist-get 'routing_entries self) "-")
+ (or (alist-get 'address self) "-"))))
+ (if (< width 96)
+ `(:type :flex
+ :direction :column
+ :gap 0
+ :children
+ ((:type item
+ :format "%v"
+ :value ,(yggdrasil-ui--fit summary width
+ (yggdrasil-ui--state-face service)))
+ (:type :flex
+ :direction :row
+ :gap 2
+ :children
+ (,(yggdrasil-ui--button "Refresh" #'yggdrasil-ui-refresh
+ 'refresh 'primary)
+ ,(yggdrasil-ui--button "Ping all" #'yggdrasil-ui-ping-all
+ 'ping-all 'primary)
+ ,(yggdrasil-ui--button "Docs" #'yggdrasil-ui-open-reference
+ 'docs 'muted)))))
+ `(:type :flex
+ :direction :row
+ :gap 2
+ :children
+ ((:type item
+ :format "%v"
+ :value ,(yggdrasil-ui--fit summary
+ (max 32 (- width 48))
+ (yggdrasil-ui--state-face service))
+ :layout (:width ,(max 32 (- width 48)) :grow 1))
+ ,(yggdrasil-ui--button "Refresh" #'yggdrasil-ui-refresh
+ 'refresh 'primary)
+ ,(yggdrasil-ui--button "Ping all" #'yggdrasil-ui-ping-all
+ 'ping-all 'primary)
+ ,(yggdrasil-ui--button "Docs" #'yggdrasil-ui-open-reference
+ 'docs 'muted))))))
+
+(defun yggdrasil-ui--self-lines (state width)
+ "Render local node detail lines for STATE at WIDTH."
+ (let ((self (plist-get state :self))
+ (error (plist-get state :self-error)))
+ (if error
+ (list (yggdrasil-ui--item "SELF" 'yggdrasil-ui-strong)
+ (yggdrasil-ui--text error '(:min-width 36 :grow 1)))
+ (let ((left (if (>= width 100) 54 width))
+ (right (max 20 (- width 58))))
+ (list
+ (yggdrasil-ui--item "SELF" 'yggdrasil-ui-strong)
+ (yggdrasil-ui--item
+ (if (>= width 100)
+ (concat
+ (yggdrasil-ui--cells
+ (list "address" 8 'yggdrasil-ui-faded)
+ (list (alist-get 'address self) (- left 10)))
+ " "
+ (yggdrasil-ui--cells
+ (list "subnet" 7 'yggdrasil-ui-faded)
+ (list (alist-get 'subnet self) right)))
+ (yggdrasil-ui--cells
+ (list "address" 8 'yggdrasil-ui-faded)
+ (list (alist-get 'address self) (- width 10)))))
+ (yggdrasil-ui--item
+ (if (>= width 100)
+ (concat
+ (yggdrasil-ui--cells
+ (list "version" 8 'yggdrasil-ui-faded)
+ (list (alist-get 'build_version self) (- left 10)))
+ " "
+ (yggdrasil-ui--cells
+ (list "updated" 7 'yggdrasil-ui-faded)
+ (list (plist-get state :updated) right)))
+ (yggdrasil-ui--cells
+ (list "updated" 8 'yggdrasil-ui-faded)
+ (list (plist-get state :updated) (- width 10))))))))))
+
+(defun yggdrasil-ui--peer-line (peer width)
+ "Return a rendered peer row for PEER at WIDTH."
+ (let* ((up (alist-get 'up peer))
+ (face (yggdrasil-ui--state-face up))
+ (state (if up "up" "down"))
+ (remote (alist-get 'remote peer))
+ (note (if up
+ (format "up %s" (yggdrasil-ui--format-seconds
+ (alist-get 'uptime peer)))
+ (or (alist-get 'last_error peer) "-"))))
+ (if (< width 92)
+ (let ((meta (format "%s rtt %s cost %s rx %s tx %s"
+ note
+ (yggdrasil-ui--format-latency
+ (alist-get 'latency peer))
+ (or (alist-get 'cost peer) "-")
+ (yggdrasil-ui--format-bytes
+ (alist-get 'bytes_recvd peer))
+ (yggdrasil-ui--format-bytes
+ (alist-get 'bytes_sent peer)))))
+ (list
+ (yggdrasil-ui--item
+ (yggdrasil-ui--cells
+ (list state 5 face)
+ (list remote (- width 7) face)))
+ (yggdrasil-ui--item
+ (yggdrasil-ui--cells
+ (list "" 5)
+ (list meta (- width 7)
+ (if up 'yggdrasil-ui-faded 'yggdrasil-ui-critical))))))
+ (list
+ (yggdrasil-ui--item
+ (yggdrasil-ui--cells
+ (list state 5 face)
+ (list remote 28 face)
+ (list (yggdrasil-ui--format-latency (alist-get 'latency peer)) 8)
+ (list (or (alist-get 'cost peer) "-") 5)
+ (list (yggdrasil-ui--format-bytes (alist-get 'bytes_recvd peer)) 8)
+ (list (yggdrasil-ui--format-bytes (alist-get 'bytes_sent peer)) 8)
+ (list (or (alist-get 'address peer) "-") 39 'yggdrasil-ui-faded)
+ (list note (max 12 (- width 119))
+ (if up 'yggdrasil-ui-faded 'yggdrasil-ui-critical))))))))
+
+(defun yggdrasil-ui--peer-lines (state width)
+ "Render peer table lines for STATE at WIDTH."
+ (let ((peers (plist-get state :peers))
+ (error (plist-get state :peers-error)))
+ (append
+ (list (yggdrasil-ui--item "PEERS" 'yggdrasil-ui-strong))
+ (if error
+ (list (yggdrasil-ui--text error '(:min-width 36 :grow 1)))
+ (if (< width 92)
+ (list (yggdrasil-ui--item
+ (yggdrasil-ui--cells
+ (list "state" 5 'yggdrasil-ui-faded)
+ (list "remote / note" (- width 7) 'yggdrasil-ui-faded))))
+ (list (yggdrasil-ui--item
+ (yggdrasil-ui--cells
+ (list "state" 5 'yggdrasil-ui-faded)
+ (list "remote" 28 'yggdrasil-ui-faded)
+ (list "rtt" 8 'yggdrasil-ui-faded)
+ (list "cost" 5 'yggdrasil-ui-faded)
+ (list "rx" 8 'yggdrasil-ui-faded)
+ (list "tx" 8 'yggdrasil-ui-faded)
+ (list "address" 39 'yggdrasil-ui-faded)
+ (list "note" (max 12 (- width 119)) 'yggdrasil-ui-faded)))))
+ (mapcan (lambda (peer) (yggdrasil-ui--peer-line peer width)) peers)))))
+
+(defun yggdrasil-ui--host-line (host width)
+ "Return a rendered host row for HOST at WIDTH."
+ (let* ((name (car host))
+ (address (cdr host))
+ (ping (yggdrasil-ui--host-ping-state name))
+ (face (cond ((string-prefix-p "ok" ping) 'yggdrasil-ui-salient)
+ ((string= ping "failed") 'yggdrasil-ui-critical)
+ ((string= ping "checking") 'yggdrasil-ui-warning)
+ (t 'yggdrasil-ui-faded))))
+ (yggdrasil-ui--item
+ (if (< width 82)
+ (yggdrasil-ui--cells
+ (list name 13 'yggdrasil-ui-strong)
+ (list (concat name ".ygg") 22 'yggdrasil-ui-faded)
+ (list ping (max 10 (- width 39)) face))
+ (yggdrasil-ui--cells
+ (list name 13 'yggdrasil-ui-strong)
+ (list (concat name ".ygg") 22 'yggdrasil-ui-faded)
+ (list address 39)
+ (list ping (max 10 (- width 80)) face))))))
+
+(defun yggdrasil-ui--host-lines (width)
+ "Render known host table lines at WIDTH."
+ (append
+ (list (yggdrasil-ui--item "HOSTS" 'yggdrasil-ui-strong)
+ (if (< width 82)
+ (yggdrasil-ui--item
+ (yggdrasil-ui--cells
+ (list "host" 13 'yggdrasil-ui-faded)
+ (list "name" 22 'yggdrasil-ui-faded)
+ (list "ping" (max 10 (- width 39)) 'yggdrasil-ui-faded)))
+ (yggdrasil-ui--item
+ (yggdrasil-ui--cells
+ (list "host" 13 'yggdrasil-ui-faded)
+ (list "name" 22 'yggdrasil-ui-faded)
+ (list "address" 39 'yggdrasil-ui-faded)
+ (list "ping" (max 10 (- width 80)) 'yggdrasil-ui-faded)))))
+ (mapcar (lambda (host) (yggdrasil-ui--host-line host width))
+ yggdrasil-ui-known-hosts)))
+
+(defun yggdrasil-ui--card (title children &optional width min-width)
+ "Return a compact bordered card named TITLE containing CHILDREN."
+ (let* ((outer (or width 34))
+ (inner (max 1 (- outer 4))))
+ `(:type :flex
+ :direction :column
+ :border t
+ :padding 1
+ :gap 0
+ :layout (:width ,outer
+ :min-width ,(or min-width 24)
+ :grow 0)
+ :children
+ (,(yggdrasil-ui--fixed-item title inner 'yggdrasil-ui-strong)
+ ,@children))))
+
+(defun yggdrasil-ui--summary-card (state)
+ "Render the main status card for STATE."
+ (let* ((service (plist-get state :service))
+ (peers (plist-get state :peers))
+ (self (plist-get state :self))
+ (up (yggdrasil-ui--up-peers peers))
+ (inner 34))
+ (yggdrasil-ui--card
+ "yggdrasil"
+ (list
+ (yggdrasil-ui--fixed-item
+ (format "service %s" service)
+ inner
+ (yggdrasil-ui--state-face service))
+ (yggdrasil-ui--fixed-item
+ (format "peers %d/%d up" up (length peers))
+ inner
+ (if (> up 0) 'yggdrasil-ui-salient 'yggdrasil-ui-critical))
+ (yggdrasil-ui--fixed-item
+ (format "routes %s" (or (alist-get 'routing_entries self) "-"))
+ inner)
+ (yggdrasil-ui--fixed-item
+ (format "updated %s" (plist-get state :updated))
+ inner
+ 'yggdrasil-ui-faded)
+ `(:type :flex
+ :direction :row
+ :gap 1
+ :children
+ (,(yggdrasil-ui--button "Refresh" #'yggdrasil-ui-refresh
+ 'refresh 'primary)
+ ,(yggdrasil-ui--button "Ping all" #'yggdrasil-ui-ping-all
+ 'ping-all 'primary)
+ ,(yggdrasil-ui--button "Docs" #'yggdrasil-ui-open-reference
+ 'docs 'muted))))
+ 38 28)))
+
+(defun yggdrasil-ui--self-card (state)
+ "Render the local node card for STATE."
+ (let ((self (plist-get state :self))
+ (error (plist-get state :self-error)))
+ (if error
+ (yggdrasil-ui--card
+ "self"
+ (list (yggdrasil-ui--text error '(:min-width 26 :grow 1)))
+ 48 30)
+ (yggdrasil-ui--card
+ "self"
+ (list
+ (yggdrasil-ui--fixed-item
+ (format "address %s" (or (alist-get 'address self) "-"))
+ 50)
+ (yggdrasil-ui--fixed-item
+ (format "subnet %s" (or (alist-get 'subnet self) "-"))
+ 50)
+ (yggdrasil-ui--fixed-item
+ (format "key %s" (yggdrasil-ui--short-key
+ (alist-get 'key self)))
+ 50
+ 'yggdrasil-ui-faded)
+ (when-let* ((key (alist-get 'key self)))
+ (yggdrasil-ui--button
+ "Copy key"
+ (lambda () (yggdrasil-ui--copy-value "self public key" key))
+ 'copy-self-key
+ 'muted))
+ (yggdrasil-ui--fixed-item
+ (format "version %s" (or (alist-get 'build_version self) "-"))
+ 50
+ 'yggdrasil-ui-faded))
+ 54 34))))
+
+(defun yggdrasil-ui--peer-card (peer)
+ "Render PEER as a compact card."
+ (let* ((up (alist-get 'up peer))
+ (state (if up "Up" "Down"))
+ (remote (or (alist-get 'remote peer) "-"))
+ (key (alist-get 'key peer))
+ (note (if up
+ (format "uptime %s" (yggdrasil-ui--format-seconds
+ (alist-get 'uptime peer)))
+ (or (alist-get 'last_error peer) "-")))
+ (inner 38))
+ (yggdrasil-ui--card
+ (concat state " " remote)
+ (list
+ (yggdrasil-ui--fixed-item
+ (format "addr %s" (or (alist-get 'address peer) "-"))
+ inner
+ 'yggdrasil-ui-faded)
+ (yggdrasil-ui--fixed-item
+ (format "rtt %s cost %s"
+ (yggdrasil-ui--format-latency (alist-get 'latency peer))
+ (or (alist-get 'cost peer) "-"))
+ inner)
+ (yggdrasil-ui--fixed-item
+ (format "rx %s tx %s"
+ (yggdrasil-ui--format-bytes (alist-get 'bytes_recvd peer))
+ (yggdrasil-ui--format-bytes (alist-get 'bytes_sent peer)))
+ inner)
+ (yggdrasil-ui--fixed-item
+ (format "key %s" (yggdrasil-ui--short-key
+ (alist-get 'key peer)))
+ inner
+ 'yggdrasil-ui-faded)
+ (when (and (stringp key) (not (string-empty-p key)))
+ (yggdrasil-ui--button
+ "Copy key"
+ (lambda () (yggdrasil-ui--copy-value "peer public key" key))
+ (intern (format "copy-peer-key-%s" (sxhash key)))
+ 'muted))
+ (yggdrasil-ui--fixed-item
+ note
+ inner
+ (if up 'yggdrasil-ui-faded 'yggdrasil-ui-critical)))
+ 42 30)))
+
+(defun yggdrasil-ui--host-card (host)
+ "Render known HOST as a compact card."
+ (let* ((name (car host))
+ (address (cdr host))
+ (ping (yggdrasil-ui--host-ping-state name))
+ (face (cond ((string-prefix-p "ok" ping) 'yggdrasil-ui-salient)
+ ((string= ping "failed") 'yggdrasil-ui-critical)
+ ((string= ping "checking") 'yggdrasil-ui-warning)
+ (t 'yggdrasil-ui-faded)))
+ (inner 32))
+ (yggdrasil-ui--card
+ name
+ (list
+ (yggdrasil-ui--fixed-item (concat name ".ygg") inner 'yggdrasil-ui-faded)
+ (yggdrasil-ui--fixed-item address inner)
+ (yggdrasil-ui--fixed-item (format "ping %s" ping) inner face)
+ `(:type :flex
+ :direction :row
+ :gap 1
+ :children
+ (,(yggdrasil-ui--button
+ "Ping"
+ (lambda () (yggdrasil-ui--ping-host name))
+ (intern (format "ping-%s" name))
+ 'primary)
+ ,(yggdrasil-ui--button
+ "Copy"
+ (lambda ()
+ (kill-new (concat name ".ygg"))
+ (message "Copied %s.ygg" name))
+ (intern (format "copy-%s" name))
+ 'muted))))
+ 36 28)))
+
+(defun yggdrasil-ui--cards-frame (width)
+ "Render the card-based Yggdrasil dashboard."
+ (let ((peer-columns (if (< width 90) 1 2))
+ (host-columns (cond ((< width 86) 1)
+ (t 2))))
+ (append
+ (list
+ `(:type :flex
+ :direction :row
+ :gap 1
+ :children
+ (,(yggdrasil-ui--summary-card textui-state)
+ ,(yggdrasil-ui--self-card textui-state)))
+ (yggdrasil-ui--item "peers" 'yggdrasil-ui-strong))
+ (if (plist-get textui-state :peers-error)
+ (list (yggdrasil-ui--text (plist-get textui-state :peers-error)))
+ (list
+ `(:type :grid
+ :columns ,peer-columns
+ :min-column-width 30
+ :gap 1
+ :children ,(mapcar #'yggdrasil-ui--peer-card
+ (plist-get textui-state :peers)))))
+ (list
+ (yggdrasil-ui--item "hosts" 'yggdrasil-ui-strong)
+ `(:type :grid
+ :columns ,host-columns
+ :min-column-width 28
+ :gap 1
+ :children ,(mapcar #'yggdrasil-ui--host-card
+ yggdrasil-ui-known-hosts))
+ (yggdrasil-ui--item "keys: r refresh p ping all c copy host d docs q quit"
+ 'yggdrasil-ui-faded)))))
+
+(defun yggdrasil-ui--frame (width)
+ "Render the Yggdrasil dashboard."
+ (list
+ `(:type :flex
+ :direction :column
+ :gap 1
+ :children ,(yggdrasil-ui--cards-frame width))))
+
+;;;###autoload
+(defun yggdrasil-ui ()
+ "Open the Yggdrasil TextUI dashboard."
+ (interactive)
+ (setq yggdrasil-ui--buffer
+ (textui-open yggdrasil-ui--buffer-name
+ #'yggdrasil-ui--frame
+ (yggdrasil-ui--snapshot)))
+ (with-current-buffer yggdrasil-ui--buffer
+ (yggdrasil-ui--install-keys))
+ yggdrasil-ui--buffer)
+
+(provide 'yggdrasil-ui)
+;;; yggdrasil-ui.el ends here
generated by cgit v1.3.1 (git 2.54.0) at 2026-10-17 05:47:43 +0000