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;;; ai-code-prompt-mode.el --- Unified interface for multiple AI coding CLI tool -*- lexical-binding: t; -*-
;; Author: Kang Tu <tninja@gmail.com>
;; SPDX-License-Identifier: Apache-2.0
;;; Code:
(require 'org)
(require 'magit)
(defvar yas-snippet-dirs)
(declare-function magit-toplevel "magit" (&optional dir))
(defvar ai-code-use-gptel-headline)
(defvar ai-code-prompt-suffix)
(defvar ai-code-use-prompt-suffix)
(declare-function yas-load-directory "yasnippet" (dir))
(declare-function yas-minor-mode "yasnippet")
(declare-function ai-code-cli-send-command "ai-code-interface" (command))
(declare-function ai-code-cli-switch-to-buffer "ai-code-interface" ())
(declare-function gptel-request "gptel" (prompt &rest args))
(declare-function gptel-abort "gptel" (buffer))
(declare-function ai-code--git-repo-recent-modified-files "ai-code-git" (base-dir limit))
(declare-function ai-code--git-ignored-repo-file-p "ai-code-git" (file root))
(declare-function ai-code--hash-completion-target-file "ai-code-input" (&optional end-pos))
(declare-function ai-code--choose-symbol-from-file "ai-code-input" (file))
(defcustom ai-code-prompt-preprocess-filepaths t
"When non-nil, preprocess the prompt to replace file paths.
If a word in the prompt is a file path within the current git repository,
it will be replaced with a relative path prefixed with '@'."
:type 'boolean
:group 'ai-code)
;;;###autoload
(defcustom ai-code-prompt-file-name ".ai.code.prompt.org"
"File name that will automatically enable `ai-code-prompt-mode` when opened.
This is the file name without path."
:type 'string
:group 'ai-code)
(defun ai-code--setup-snippets ()
"Setup YASnippet directories for `ai-code-prompt-mode`."
(condition-case _err
(when (require 'yasnippet nil t)
(let ((snippet-dir (expand-file-name "snippets"
(file-name-directory (file-truename (locate-library "ai-code"))))))
(when (file-directory-p snippet-dir)
(unless (boundp 'yas-snippet-dirs)
(setq yas-snippet-dirs nil))
(add-to-list 'yas-snippet-dirs snippet-dir t)
(ignore-errors (yas-load-directory snippet-dir)))))
(error nil))) ;; Suppress all errors
;;;###autoload
(defun ai-code-open-prompt-file ()
"Open AI prompt file under .ai.code.files/ directory.
If file doesn't exist, create it with sample prompt."
(interactive)
(let* ((files-dir (ai-code--ensure-files-directory))
(prompt-file (expand-file-name ai-code-prompt-file-name files-dir)))
(find-file-other-window prompt-file)
(unless (file-exists-p prompt-file)
;; Insert initial content for new file
(insert "# AI Prompt File\n")
(insert "# This file is for storing AI prompts and instructions\n")
(insert "# Use this file to save reusable prompts for your AI assistant\n\n")
(insert "* Sample prompt:\n\n")
(insert "Explain the architecture of this codebase\n")
(save-buffer))))
(defun ai-code--get-ai-code-prompt-file-path ()
"Get the path to the AI prompt file in the .ai.code.files/ directory."
(let ((files-dir (ai-code--get-files-directory)))
(expand-file-name ai-code-prompt-file-name files-dir)))
(defun ai-code--execute-command (command)
"Execute COMMAND directly without saving to prompt file."
(message "Executing command: %s" command)
(ignore-errors (ai-code-cli-send-command command))
(ai-code-cli-switch-to-buffer))
(defun ai-code--generate-prompt-headline (prompt-text)
"Generate and insert a headline for PROMPT-TEXT."
(insert "** ")
(if (and ai-code-use-gptel-headline (require 'gptel nil t))
(condition-case nil
(let ((headline (ai-code-call-gptel-sync (concat "Create a 5-10 word action-oriented headline for this AI prompt that captures the main task. Use keywords like: refactor, implement, fix, optimize, analyze, document, test, review, enhance, add, remove, improve, integrate, task. Example: 'Optimize database queries' or 'Implement error handling'.\n\nPrompt: " prompt-text))))
(insert headline " ")
(org-insert-time-stamp (current-time) t t))
(error (org-insert-time-stamp (current-time) t t)))
(org-insert-time-stamp (current-time) t t))
(insert "\n"))
(defun ai-code-call-gptel-sync (question)
"Get an answer from gptel synchronously for a given QUESTION.
This function blocks until a response is received or a timeout occurs.
Only works when gptel package is installed, otherwise shows error message."
(unless (featurep 'gptel)
(user-error "GPTel package is required for AI command generation. Please install gptel package"))
(let ((answer nil)
(done nil)
(error-info nil)
(start-time (float-time))
(temp-buffer (generate-new-buffer " *gptel-sync*")))
(unwind-protect
(progn
(gptel-request question
:buffer temp-buffer
:stream nil
:callback (lambda (response info)
(cond
((stringp response)
(setq answer response))
((eq response 'abort)
(setq error-info "Request aborted."))
(t
(setq error-info (or (plist-get info :status) "Unknown error"))))
(setq done t)))
;; Block until 'done' is true or timeout is reached
(while (not done)
(when (> (- (float-time) start-time) 30) ;; timeout after 30 seconds
;; Try to abort any running processes
(gptel-abort temp-buffer)
(setq done t
error-info (format "Request timed out after %d seconds" 30)))
;; Use sit-for to process events and allow interruption
(sit-for 0.1)))
;; Clean up temp buffer
(when (buffer-live-p temp-buffer)
(kill-buffer temp-buffer)))
(if error-info
(error "ai-code-call-gptel-sync failed: %s" error-info)
answer)))
(defun ai-code--format-and-insert-prompt (prompt-text)
"Insert PROMPT-TEXT into the current buffer without suffix."
(insert prompt-text)
(unless (bolp)
(insert "\n"))
prompt-text)
(defun ai-code--get-prompt-buffer (prompt-file)
"Get the buffer for PROMPT-FILE, without selecting it."
(find-file-noselect prompt-file))
(defun ai-code--append-prompt-to-buffer (prompt-text)
"Append formatted PROMPT-TEXT to the end of the current buffer.
This includes generating a headline and formatting the prompt.
Returns the full prompt text with suffix for sending to AI."
(goto-char (point-max))
(insert "\n\n")
(ai-code--generate-prompt-headline prompt-text)
(ai-code--format-and-insert-prompt prompt-text))
(defun ai-code--send-prompt (full-prompt)
"Send FULL-PROMPT to AI."
(ai-code-cli-send-command full-prompt)
(ai-code-cli-switch-to-buffer))
(defun ai-code--write-prompt-to-file-and-send (prompt-text)
"Write PROMPT-TEXT to the AI prompt file."
(let* ((full-prompt (concat (if (and ai-code-use-prompt-suffix ai-code-prompt-suffix)
(concat prompt-text "\n" ai-code-prompt-suffix)
prompt-text) "\n"))
(prompt-file (ai-code--get-ai-code-prompt-file-path))
(original-default-directory default-directory))
(if prompt-file
(let ((buffer (ai-code--get-prompt-buffer prompt-file)))
(with-current-buffer buffer
(ai-code--append-prompt-to-buffer prompt-text)
(save-buffer)
(message "Prompt added to %s" prompt-file))
(let ((default-directory original-default-directory))
(ai-code--send-prompt full-prompt)))
(ai-code--send-prompt full-prompt))))
(defun ai-code--process-word-for-filepath (word git-root-truename)
"Process a single WORD, converting it to relative path with @ prefix.
WORD is the text to process.
GIT-ROOT-TRUENAME is the true name of the git repository root.
If WORD is a file path, it's converted to a relative path."
(if (or (string= word ".") (string= word ".."))
word
(let* ((expanded-word (expand-file-name word))
(expanded-word-truename (file-truename expanded-word)))
(if (and (file-exists-p expanded-word)
(string-prefix-p git-root-truename expanded-word-truename))
(concat "@" (file-relative-name expanded-word-truename git-root-truename))
word))))
(defun ai-code--preprocess-prompt-text (prompt-text)
"Preprocess PROMPT-TEXT to replace file paths with relative paths.
The function splits the prompt by whitespace, checks if each part is a file
path within the current git repository, and if so, replaces it with a
relative path prefixed with @.
NOTE: This does not handle file paths containing spaces."
(if-let* ((git-root (magit-toplevel)))
(let ((git-root-truename (file-truename git-root)))
(mapconcat
(lambda (word) (ai-code--process-word-for-filepath word git-root-truename))
(split-string prompt-text "[ \t\n]+" t) ; split by whitespace and remove empty strings
" "))
;; Not in a git repo, return original prompt
prompt-text))
(defun ai-code--file-in-git-repo-p (file git-root-truename)
"Return non-nil when FILE is a regular file under GIT-ROOT-TRUENAME."
(when (and file (file-exists-p file))
(let ((truename (file-truename file)))
(and (file-regular-p truename)
(string-prefix-p git-root-truename truename)))))
(defun ai-code--relative-filepath (file git-root-truename)
"Return FILE relative to GIT-ROOT-TRUENAME, prefixed with '@'."
(concat "@" (file-relative-name (file-truename file) git-root-truename)))
(defun ai-code--normalize-path (file)
"Return normalized absolute path for FILE.
If FILE exists, return its truename. Otherwise return expanded path."
(let ((full (expand-file-name file)))
(if (file-exists-p full)
(file-truename full)
full)))
(defun ai-code--candidate-path (file git-root-truename)
"Return completion candidate for FILE.
Return '@'-prefixed path relative to GIT-ROOT-TRUENAME when FILE is under
that root, otherwise return the absolute path."
(let ((full-truename (ai-code--normalize-path file)))
(if (string-prefix-p git-root-truename full-truename)
(ai-code--relative-filepath full-truename git-root-truename)
full-truename)))
(defun ai-code--current-frame-dired-paths (git-root-truename)
"Return dired directory candidates from current frame under GIT-ROOT-TRUENAME."
(let ((paths '()))
(dolist (win (window-list nil 'no-minibuffer))
(with-current-buffer (window-buffer win)
(when (derived-mode-p 'dired-mode)
(let ((dir (if (fboundp 'dired-current-directory)
(dired-current-directory)
default-directory)))
(when (and dir
(file-directory-p dir)
(string-prefix-p git-root-truename
(file-truename dir))
(not (ai-code--git-ignored-repo-file-p
dir
git-root-truename)))
(push (ai-code--relative-filepath dir
git-root-truename)
paths))))))
(nreverse (delete-dups paths))))
(defun ai-code--visible-window-files ()
"Return files from visible windows in current frame."
(let ((files '())
(selected (selected-window)))
(dolist (win (cons selected
(delq selected (window-list nil 'no-minibuffer))))
(let ((file (buffer-file-name (window-buffer win))))
(when file
(push file files))))
(nreverse (delete-dups files))))
(defun ai-code--recent-buffer-paths (git-root-truename)
"Return candidate paths for most recent 5 visited buffer files."
(let ((files '())
(count 0))
(dolist (buf (buffer-list))
(when (< count 5)
(with-current-buffer buf
(if (derived-mode-p 'dired-mode)
(let ((dir (if (fboundp 'dired-current-directory)
(dired-current-directory)
default-directory)))
(when dir
(push dir files)
(setq count (1+ count))))
(let ((file (buffer-file-name buf)))
(when file
(push file files)
(setq count (1+ count))))))))
(mapcar (lambda (file)
(ai-code--candidate-path file git-root-truename))
(nreverse files))))
(defun ai-code--buffer-file-list (git-root-truename &optional skip-files)
"Return buffer file list under GIT-ROOT-TRUENAME, skipping SKIP-FILES."
(let ((files '()))
(dolist (buf (buffer-list))
(let ((file (buffer-file-name buf)))
(when (and (ai-code--file-in-git-repo-p file git-root-truename)
(not (ai-code--git-ignored-repo-file-p file git-root-truename))
(not (member (file-truename file) skip-files)))
(push file files))))
(nreverse files)))
(defun ai-code--repo-recent-files (git-root)
"Return top 1000 most recently modified files under GIT-ROOT."
(ai-code--git-repo-recent-modified-files git-root 1000))
(defun ai-code--dedupe-preserve-order (items)
"Return ITEMS with duplicates removed while preserving order."
(let ((seen (make-hash-table :test #'equal))
(result '()))
(dolist (item items)
(unless (gethash item seen)
(puthash item t seen)
(push item result)))
(nreverse result)))
(defun ai-code--prompt-filepath-candidates ()
"Return file path candidates for prompt completion."
(when-let ((git-root (magit-toplevel)))
(let* ((git-root-truename (file-truename git-root))
(current-file (buffer-file-name (current-buffer)))
(current-frame-dired-paths
(ai-code--current-frame-dired-paths git-root-truename))
(visible-files (ai-code--visible-window-files))
(skip-files (mapcar #'ai-code--normalize-path visible-files))
(buffer-files (ai-code--buffer-file-list git-root-truename skip-files))
(recent-files (ai-code--repo-recent-files git-root-truename))
(ignore-prefix (concat "@" ai-code-files-dir-name "/"))
(visible-paths (mapcar (lambda (file)
(ai-code--candidate-path file git-root-truename))
visible-files))
(recent-buffer-paths
(ai-code--recent-buffer-paths git-root-truename))
(buffer-paths (mapcar (lambda (file)
(ai-code--candidate-path file git-root-truename))
buffer-files))
(recent-paths (mapcar (lambda (file)
(ai-code--candidate-path file git-root-truename))
recent-files))
(combined (append current-frame-dired-paths
visible-paths
recent-buffer-paths
buffer-paths
recent-paths))
(deduped (ai-code--dedupe-preserve-order combined))
(filtered '()))
(dolist (item deduped)
(unless (or (string-prefix-p ignore-prefix item)
(and current-file
(string= item (ai-code--relative-filepath current-file git-root-truename))))
(push item filtered)))
(nreverse filtered))))
(defun ai-code--prompt-filepath-capf ()
"Provide completion candidates for @file paths in prompt buffer."
(when (and (not (minibufferp)) (magit-toplevel))
(let ((end (point))
(start (save-excursion
(skip-chars-backward "A-Za-z0-9_./-")
(when (eq (char-before) ?@)
(1- (point))))))
(when start
(let ((candidates (ai-code--prompt-filepath-candidates)))
(when candidates
(list start end candidates :exclusive 'no)))))))
(defun ai-code--prompt-auto-trigger-filepath-completion ()
"Auto trigger file path/symbol completion when '@' or '#' is inserted."
(when (not (minibufferp))
(pcase (char-before)
(?@
(let ((candidates (ai-code--prompt-filepath-candidates)))
(when candidates
(let ((choice (completing-read "File: " candidates nil nil)))
(when (and choice (not (string-empty-p choice)))
(delete-char -1) ; Remove the '@' we just typed
(insert choice))))))
(?#
(require 'ai-code-input nil t)
(when (and (fboundp 'ai-code--hash-completion-target-file)
(fboundp 'ai-code--choose-symbol-from-file))
(when-let* ((file (ai-code--hash-completion-target-file (1- (point))))
(symbol (ai-code--choose-symbol-from-file file)))
(when (not (string-empty-p symbol))
(delete-char -1) ; Remove the '#' we just typed
(insert (concat "#" symbol)))))))))
(defun ai-code--insert-prompt (prompt-text)
"Preprocess and insert PROMPT-TEXT into the AI prompt file.
If PROMPT-TEXT is a command (starts with /), execute it directly instead."
(let ((processed-prompt (if ai-code-prompt-preprocess-filepaths
(ai-code--preprocess-prompt-text prompt-text)
prompt-text)))
(if (and (string-prefix-p "/" processed-prompt)
(not (string-match-p " " processed-prompt)))
(ai-code--execute-command processed-prompt)
(ai-code--write-prompt-to-file-and-send processed-prompt))))
;; Define the AI Prompt Mode (derived from org-mode)
;;;###autoload
(define-derived-mode ai-code-prompt-mode org-mode "AI Prompt"
"Major mode derived from `org-mode` for editing AI prompt files.
Special commands:
\{ai-code-prompt-mode-map}"
;; Basic setup
(setq-local comment-start "# ")
(setq-local comment-end "")
(setq-local truncate-lines nil) ; Disable line truncation, allowing lines to wrap
(define-key ai-code-prompt-mode-map (kbd "C-c C-c") #'ai-code-prompt-send-block)
(add-hook 'completion-at-point-functions #'ai-code--prompt-filepath-capf nil t)
(add-hook 'post-self-insert-hook #'ai-code--prompt-auto-trigger-filepath-completion nil t)
;; YASnippet support
(when (require 'yasnippet nil t)
(yas-minor-mode 1)
(ai-code--setup-snippets)))
;;;###autoload
(defun ai-code-prompt-send-block ()
"Send the current text block (paragraph) to the AI service.
The block is the text separated by blank lines.
It trims leading/trailing whitespace."
(interactive)
(let* ((block-text (thing-at-point 'paragraph))
(trimmed-text (when block-text (string-trim block-text))))
(if (and trimmed-text (string-match-p "\\S-" trimmed-text))
(progn
(ai-code-cli-send-command trimmed-text)
(ai-code-cli-switch-to-buffer))
(message "No text in the current block to send."))))
;; ai coding task feature
;;;###autoload
(defconst ai-code-files-dir-name ".ai.code.files"
"Directory name for storing AI task files.")
;;;###autoload
(defcustom ai-code-task-use-gptel-filename nil
"Whether to use GPTel to generate filename for task files.
If non-nil, call `ai-code-call-gptel-sync` to generate a smart filename
based on the task name. Otherwise, use cleaned-up task name directly."
:type 'boolean
:group 'ai-code)
(defun ai-code--get-files-directory ()
"Get the task directory path.
If in a git repository, return `.ai.code.files/` under git root.
Otherwise, return the current `default-directory`."
(let ((git-root (magit-toplevel)))
(if git-root
(expand-file-name ai-code-files-dir-name git-root)
default-directory)))
(defun ai-code--ensure-files-directory ()
"Ensure the task directory exists and return its path."
(let ((ai-code-files-dir (ai-code--get-files-directory)))
(unless (file-directory-p ai-code-files-dir)
(make-directory ai-code-files-dir t))
ai-code-files-dir))
(defun ai-code--generate-task-filename (task-name)
"Generate a task filename from TASK-NAME.
If `ai-code-task-use-gptel-filename` is non-nil, use GPTel to generate
a smart filename. Otherwise, use cleaned-up task name directly.
If TASK-NAME contains 'rdar://ID', use 'rdar_ID_' as prefix.
Otherwise, use 'task_YYYYMMDD_' as prefix.
Returns a filename with .org suffix."
(let* ((radar-id (when (string-match "rdar://\\([0-9]+\\)" task-name)
(match-string 1 task-name)))
(prefix (if radar-id
(format "rdar_%s_" radar-id)
(format "task_%s_" (format-time-string "%Y%m%d"))))
(generated-name
(if ai-code-task-use-gptel-filename
;; Use GPTel to generate filename
(condition-case nil
(ai-code-call-gptel-sync
(format "Generate a short English filename (max 60 chars, lowercase, use underscores for spaces, no extension) for this task: %s" task-name))
(error (replace-regexp-in-string "[^a-z0-9_]" "_" (downcase task-name))))
;; Use task name directly (cleaned up)
(replace-regexp-in-string "[^a-z0-9_]" "_" (downcase task-name)))))
;; Clean up the generated name
(setq generated-name (replace-regexp-in-string "[^a-z0-9_]" "_" (downcase generated-name)))
(setq generated-name (replace-regexp-in-string "_+" "_" generated-name))
(setq generated-name (replace-regexp-in-string "^_\\|_$" "" generated-name))
;; Ensure reasonable length
(when (> (length generated-name) 60)
(setq generated-name (substring generated-name 0 60)))
(concat prefix generated-name ".org")))
;;;###autoload
(defun ai-code-create-or-open-task-file ()
"Create or open an AI task file.
Prompts for a task name. If empty, opens the task directory.
If non-empty, optionally prompts for a URL, generates a filename
using GPTel, and creates the task file."
(interactive)
(let ((task-name (read-string "Task name (empty to open task directory): ")))
(if (string-empty-p task-name)
;; Open the task directory
(let ((ai-code-files-dir (ai-code--ensure-files-directory)))
(dired-other-window ai-code-files-dir)
(message "Opened task directory: %s" ai-code-files-dir))
;; Create a new task file
(let* ((task-url (read-string "URL (optional, press Enter to skip): "))
(ai-code-files-dir (ai-code--ensure-files-directory))
(generated-filename (ai-code--generate-task-filename task-name))
(confirmed-filename (read-string "Confirm task filename: " generated-filename))
(task-file (expand-file-name confirmed-filename ai-code-files-dir)))
;; Ensure filename has .org extension
(unless (string-suffix-p ".org" confirmed-filename)
(setq task-file (concat task-file ".org")))
(find-file-other-window task-file)
(unless (file-exists-p task-file)
;; Initialize new task file
(insert (format "#+TITLE: %s\n" task-name))
(insert (format "#+DATE: %s\n" (format-time-string "%Y-%m-%d")))
(unless (string-empty-p task-url)
(insert (format "#+URL: %s\n" task-url)))
(insert "\n* Task Description\n\n")
(insert task-name)
(insert "\n\n* Investigation\n\n")
(insert "# Enter your prompts here. After that,\n# Select them and use C-c a SPC (ai-code-send-command) to send to AI\n\n")
(insert "# Use C-c a n (ai-code-take-notes) to copy notes back from AI session\n\n")
(insert "\n\n* Code Change\n\n"))
(message "Opened task file: %s" task-file)))))
;;;###autoload
(add-to-list 'auto-mode-alist
`(,(concat "^"
(regexp-quote
(file-name-as-directory
(expand-file-name ai-code-files-dir-name)))
".*\\.org\\'")
. ai-code-prompt-mode))
(provide 'ai-code-prompt-mode)
;;; ai-code-prompt-mode.el ends here