227 lines
6.6 KiB
EmacsLisp
227 lines
6.6 KiB
EmacsLisp
;;; -*- lexical-binding: t; -*-
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(require 'dash)
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(require 'dash-functional)
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(require 'request)
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;;;
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;;; Configuration
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;;;
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(defvar slack/token nil
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"Legacy (https://api.slack.com/custom-integrations/legacy-tokens) access token")
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(defvar slack/include-public-channels 't
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"Whether or not to inclue public channels in the list of conversations")
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(defvar slack/include-private-channels 't
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"Whether or not to inclue public channels in the list of conversations")
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(defvar slack/include-im 't
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"Whether or not to inclue IMs (private messages) in the list of conversations")
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(defvar slack/include-mpim nil
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"Whether or not to inclue multi-person IMs (multi-person private messages) in
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the list of conversations")
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;;;
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;;; Utilities
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;;;
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(defmacro comment (&rest _body)
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"Comment out one or more s-expressions"
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nil)
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(defun ->list (vec) (append vec nil))
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(defun json-truthy? (x) (and x (not (equal :json-false x))))
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;;;
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;;; Generic API integration
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;;;
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(defvar slack/base-url "https://slack.com/api")
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(defun slack/get (path params &optional callback)
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"params is an alist of query parameters"
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(let* ((params-callback (if (functionp params) `(() . ,params) (cons params callback)))
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(params (car params-callback)) (callback (cdr params-callback))
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(params (append `(("token" . ,slack/token)) params))
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(url (concat (file-name-as-directory slack/base-url) path)))
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(request url
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:type "GET"
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:params params
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:parser 'json-read
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:success (cl-function
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(lambda (&key data &allow-other-keys)
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(funcall callback data))))))
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(defun slack/post (path params &optional callback)
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(let* ((params-callback (if (functionp params) `(() . ,params) (cons params callback)))
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(params (car params-callback)) (callback (cdr params-callback))
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(url (concat (file-name-as-directory slack/base-url) path)))
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(request url
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:type "POST"
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:data (json-encode params)
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:headers `(("Content-Type" . "application/json")
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("Authorization" . ,(format "Bearer %s" slack/token)))
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:success (cl-function
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(lambda (&key data &allow-other-keys)
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(funcall callback data))))))
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;;;
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;;; Specific API endpoints
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;;;
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;; Users
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(defun slack/users (cb)
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"Returns users as (id . name) pairs"
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(slack/get
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"users.list"
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(lambda (data)
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(->> data
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(assoc-default 'members)
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->list
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(-map (lambda (user)
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(cons (assoc-default 'id user)
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(assoc-default 'real_name user))))
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(-filter #'cdr)
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(funcall cb)))))
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(comment
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(slack/get
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"users.list"
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(lambda (data) (setq response-data data)))
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(slack/users (lambda (data) (setq --users data)))
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)
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;; Conversations
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(defun slack/conversation-types ()
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(->>
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(list (when slack/include-public-channels "public_channel")
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(when slack/include-private-channels "private_channel")
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(when slack/include-im "im")
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(when slack/include-mpim "mpim"))
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(-filter #'identity)
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(s-join ",")))
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(defun channel-label (chan users-alist)
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(cond
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((json-truthy? (assoc-default 'is_channel chan))
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(format "#%s" (assoc-default 'name chan)))
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((json-truthy? (assoc-default 'is_im chan))
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(let ((user-id (assoc-default 'user chan)))
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(format "Private message with %s" (assoc-default user-id users-alist))))
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((json-truthy? (assoc-default 'is_mpim chan))
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(->> chan
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(assoc-default 'purpose)
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(assoc-default 'value)))))
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(defun slack/conversations (cb)
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"Calls `cb' with (id . '((label . \"label\") '(topic . \"topic\") '(purpose . \"purpose\"))) pairs"
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(slack/get
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"conversations.list"
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`(("types" . ,(slack/conversation-types))
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("exclude-archived" . "true"))
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(lambda (data)
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(setq --data data)
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(slack/users
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(lambda (users)
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(->> data
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(assoc-default 'channels)
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->list
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(-map
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(lambda (chan)
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(cons (assoc-default 'id chan)
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`((label . ,(channel-label chan users))
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(topic . ,(->> chan
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(assoc-default 'topic)
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(assoc-default 'value)))
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(purpose . ,(->> chan
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(assoc-default 'purpose)
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(assoc-default 'value)))))))
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(funcall cb)))))))
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(comment
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(slack/get
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"conversations.list"
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'(("types" . "public_channel,private_channel,im,mpim"))
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(lambda (data) (setq response-data data)))
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(slack/get
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"conversations.list"
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'(("types" . "im"))
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(lambda (data) (setq response-data data)))
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(slack/conversations
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(lambda (convos) (setq --conversations convos)))
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)
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;; Messages
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(cl-defun slack/post-message
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(&key text channel-id (on-success #'identity))
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(slack/post "chat.postMessage"
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`((text . ,text)
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(channel . ,channel-id)
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(as_user . t))
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on-success))
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(comment
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(slack/post-message
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:text "hi slackbot"
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:channel-id slackbot-channel-id
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:on-success (lambda (data) (setq resp data)))
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)
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;;;
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;;; Posting code snippets to slack
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;;;
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(defun prompt-for-channel (cb)
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(slack/conversations
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(lambda (conversations)
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(ivy-read
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"Select channel: "
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;; TODO want to potentially use purpose / topic stuff here
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(->> conversations
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(-filter (lambda (c) (assoc-default 'label (cdr c))))
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(-map (lambda (chan) (let ((label (assoc-default 'label (cdr chan)))
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(id (car chan)))
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(propertize label 'channel-id id)))))
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:history 'slack/channel-history
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:action (lambda (selected)
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(let ((channel-id (get-text-property 0 'channel-id selected)))
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(funcall cb channel-id)
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(message "Sent message to %s" selected))))))
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nil)
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(comment
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(prompt-for-channel #'message)
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(->> --convos
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(-filter (lambda (c) (assoc-default 'label (cdr c))))
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(-map (lambda (chan) (let ((label (assoc-default 'label (cdr chan)))
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(id (car chan)))
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(propertize label 'channel-id id)))))
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(->> --convos (car) (cdr) (assoc-default 'label))
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)
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(defun slack-send-code-snippet (&optional snippet-text)
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(interactive
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(list (buffer-substring-no-properties (mark) (point))))
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(prompt-for-channel
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(lambda (channel-id)
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(slack/post-message
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:text (format "```\n%s```" snippet-text)
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:channel-id channel-id))))
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(provide 'slack-snippets)
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