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+;;; iarc.el -- internet archive client -*- lexical-binding: t -*-
+
+;; Copyright (C) 2025  Free Software Foundation, Inc.
+
+;; Author: Yuchen Pei <id@ypei.org>
+;; Package-Requires: ((emacs "30.1"))
+
+;; This file is part of dotted.
+
+;; dotted is free software: you can redistribute it and/or modify it under
+;; the terms of the GNU Affero General Public License as published by
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
+
+;; dotted is distributed in the hope that it will be useful, but WITHOUT
+;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+;; or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Affero General
+;; Public License for more details.
+
+;; You should have received a copy of the GNU Affero General Public
+;; License along with dotted.  If not, see <https://www.gnu.org/licenses/>.
+
+;;; Commentary:
+
+;; internet archive client.
+
+;;; Code:
+
+(require 'infobox)
+
+(defvar-keymap iarc-mode-map
+  :parent tabulated-list-mode-map
+  "F" #'iarc-toggle-follow-mode
+  "i" #'iarc-infobox
+  "n" #'iarc-next-line
+  "p" #'iarc-previous-line
+  "RET" #'iarc-item-at-point
+  )
+
+(define-derived-mode iarc-mode tabulated-list-mode "IArc"
+  (hl-line-mode 1)
+  (setq tabulated-list-format
+        [("★ " 3 iarc-compare-favourites :right-align t)
+         ("Title" 60 t)])
+  (setq tabulated-list-padding 2)
+  (tabulated-list-init-header)
+  (setq revert-buffer-function #'iarc-list-refresh))
+
+(defvar iarc-search-dataset nil)
+
+(defvar iarc-follow-mode nil "Whether follow mode is on.")
+
+(defun iarc-toggle-follow-mode ()
+  (interactive)
+  (setq iarc-follow-mode (not iarc-follow-mode)))
+
+(defun iarc-previous-line ()
+  (interactive)
+  (previous-line)
+  (when iarc-follow-mode
+    (iarc-infobox)))
+
+(defun iarc-next-line ()
+  (interactive)
+  (next-line)
+  (when iarc-follow-mode
+    (iarc-infobox)))
+
+(defun iarc-compare-favourites (x y)
+  (> (let-alist (car x) (or .fields.num_favorites 0))
+     (let-alist (car y) (or .fields.num_favorites 0))))
+
+(defun iarc-list-print-entry (info)
+  (let-alist (alist-get 'fields info)
+    (list info (vector (format "%d" (or .num_favorites 0))
+                       .title))))
+
+(defun iarc-list-refresh (&rest _)
+  (interactive)
+  (setq tabulated-list-entries
+        (seq-map 'iarc-list-print-entry iarc-search-dataset))
+  (tabulated-list-print))
+
+(defun iarc ()
+  (let ((buf (get-buffer-create "*IArc*")))
+    (with-current-buffer buf
+      (iarc-mode)
+      (iarc-list-refresh))
+    (pop-to-buffer-same-window buf)))
+
+(defvar iarc-host "https://archive.org")
+
+(defun iarc-api-search (query)
+  (my-url-fetch-json
+   (format "%s/services/search/beta/page_production/?user_query=title:(%s)&hits_per_page=100&page=1&aggregations=false"
+           iarc-host query)))
+
+(defun iarc-search (query)
+  (interactive "sIArc Query: ")
+  (setq iarc-search-dataset (let-alist (iarc-api-search query)
+                              .response.body.hits.hits))
+  (iarc))
+
+(defun iarc-infobox ()
+  (interactive)
+  (let ((help-window-select (not iarc-follow-mode)))
+    (iarc-render-info (alist-get 'fields (tabulated-list-get-id)))))
+
+(defun iarc-render-info (info)
+  (infobox-render
+   (infobox-translate info (infobox-default-specs info))
+   `(iarc-render-infobox ,info)
+   (called-interactively-p 'interactive)))
+
+(defun iarc-item-at-point ()
+  (interactive)
+  (iarc-item (alist-get 'identifier (alist-get 'fields
+                                               (tabulated-list-get-id)))))
+
+(define-derived-mode iarc-item-mode tabulated-list-mode "IArc Item"
+  (hl-line-mode 1)
+  (setq revert-buffer-function #'iarc-list-refresh))
+
+(defvar-local iarc-item-id nil "The item identifier for the iarc-item mode")
+(defvar-local iarc-item-data nil "The content of the iarc-item mode")
+
+(defun iarc-item (id)
+  "List content of item with ID"
+  (let* ((buf (get-buffer-create (format "*IArc %s*" id)))
+         (out
+          (seq-map
+           (lambda (s) (split-string s "\t"))
+           (string-lines
+            (with-temp-buffer
+              (call-process "ia" nil t nil "ls" "-v" "-c" "name,mtime,size" id)
+              (buffer-string))))))
+    (with-current-buffer buf
+      (setq tabulated-list-format
+            (vconcat
+             (seq-map
+              (lambda (c) (list c 20))
+              (car out))))
+      (setq tabulated-list-padding 2)
+      (iarc-item-mode)
+      (tabulated-list-init-header)
+      (setq iarc-item-data (cdr out))
+      (iarc-item-list-refresh))
+    (pop-to-buffer-same-window buf)))
+
+(defun iarc-item-list-refresh ()
+  (setq tabulated-list-entries
+        (seq-map 'iarc-item-list-print-entry iarc-item-data))
+  (tabulated-list-print))
+
+(defun iarc-item-list-print-entry (info)
+  (list info (vconcat info)))
+
+(provide 'iarc)
+;;; iarc.el ends here