265 lines
10 KiB
EmacsLisp
265 lines
10 KiB
EmacsLisp
;;; idec-db.el --- This file is a part of client for IDEC network
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;; Copyright (c) 2017 Denis Zheleztsov
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;; Author: Denis Zheleztsov <difrex.punk@gmail.com>
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;; Keywords: lisp,network,IDEC
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;; Version: 0.1
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;; Homepage: https://github.com/idec-net/idec.el
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;; This program is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with this program. If not, see <http://www.gnu.org/licenses/>.
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;;; Commentary:
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;; In active developent.
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;; Fetched node must be support modern IDEC extensions like /list.txt, /x/c, etc.
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;;; Code:
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(require 'emacsql)
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(require 'emacsql-sqlite)
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(require 'idec-parser)
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(defun create-echo-mail-dir (echo)
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"Create ECHO directory inside `idec-mail-dir'."
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(if (file-exists-p idec-mail-dir)
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(message idec-mail-dir)
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(mkdir idec-mail-dir))
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(if (file-exists-p (concat idec-mail-dir "/" echo))
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(message (concat idec-mail-dir "/" echo))
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(mkdir (concat idec-mail-dir "/" echo))))
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(defun get-local-echoes ()
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"Get local downloaded echoes from `idec-mail-dir'."
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(delete '".." (delete '"." (directory-files idec-mail-dir nil "\\w*\\.\\w*"))))
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(defun get-echo-dir (echo)
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"Get ECHO dir from `idec-mail-dir'."
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(concat idec-mail-dir (concat "/" echo)))
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(defun filename-to-store (content id)
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"Make filename from CONTENT unixtime and ID."
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(concat (nth 2 (split-string content)) "-" id))
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(defun get-message-file (echo id)
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"Get ECHO message filename by ID."
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(concat (get-echo-dir echo) "/" id))
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(defun get-counter-file (echo)
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"Get ECHO counter filename."
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(concat (get-echo-dir echo) "/counter"))
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(defun store-message (content echo id)
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"Store CONTENT from ECHO message in `idec-mail-dir' with it ID."
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(create-echo-mail-dir echo)
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(write-region content nil (get-message-file echo id)))
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(defun store-echo-counter (echo)
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"Store count messages in ECHO."
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(create-echo-mail-dir echo)
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(write-region (echo-messages-count echo) nil (get-counter-file echo)))
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(defun check-message-in-echo (msg echo)
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"Check if exists message MSG in ECHO `idec-mail-dir'."
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(not (f-file? (get-message-file echo msg))))
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(defun open-echo-db (echo)
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"Create or open sqlite database inside ECHO `idec-mail-dir'."
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(emacsql-sqlite (concat (get-echo-dir echo) "/db.sqlite3")))
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(defun create-db-schema (echo)
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"Create db schema for ECHO."
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(emacsql (open-echo-db echo)
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[:create-table messages
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([(id :primary-key)
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tags
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author
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address
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recipient
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repto
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echo
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subj
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(body :text)
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(time :timestamp)
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(unread integer :default 1)])])
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(emacsql (open-echo-db echo)
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[:create-table outbox
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([
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(time :timestamp)
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recipient
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subj
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(body :text)
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])])
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t)
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(defun init-echo-db (echo)
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"Initialize new database for ECHO."
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(when (check-message-in-echo "db.sqlite3" echo)
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(and
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(create-db-schema echo)
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(message (concat "IDEC: Database for " echo " initialized.")))))
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(defun insert-message-to-db (msg id &optional mark-read)
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"Insert MSG ID to echo db;
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unread by default, but you can MARK-READ it."
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(when (check-message-in-db id (get-message-field msg "echo"))
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(when (not mark-read)
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(setq mark-read 1))
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(let (repto)
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(setq repto "")
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;; Check repto tag
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(if (string-match "repto" (get-message-field msg "tags"))
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(setq repto (nth 3 (split-string (get-message-field msg "tags") "/"))))
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(if (not (emacsql (open-echo-db (get-message-field msg "echo"))
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[:insert :into messages
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:values ([$s1 $s2 $s3 $s4 $s5 $s6 $s7 $s8 $s9 $s10 $s11])]
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id
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(get-message-field msg "tags")
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(get-message-field msg "author")
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(get-message-field msg "address")
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(get-message-field msg "recipient")
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repto
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(get-message-field msg "echo")
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(get-message-field msg "subj")
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(s-join "\n" (get-message-field msg "body"))
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(get-message-field msg "time")
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mark-read))
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(message (concat "IDEC: Message " id " stored in db"))
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(message (concat "IDEC: Problem to store message " id))))
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))
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(defun total-db-messages (echo)
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"Return count of local ECHO messages."
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(length (emacsql (open-echo-db echo)
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[:select [id]
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:from messages])))
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(defun make-hash-from-msg-list (msg-list)
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"Return hash table maded from MSG-LIST."
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(let (msg-hash)
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(setq msg-hash (make-hash-table :test 'equal))
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(if (and
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(listp msg-list)
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(> (length msg-list) 0))
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(let ()
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(puthash "id" (nth 0 msg-list) msg-hash)
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(puthash "tags" (nth 1 msg-list) msg-hash)
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(puthash "author" (nth 2 msg-list) msg-hash)
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(puthash "address" (nth 3 msg-list) msg-hash)
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(puthash "recipient" (nth 4 msg-list) msg-hash)
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(puthash "repto" (nth 5 msg-list) msg-hash)
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(puthash "echo" (nth 6 msg-list) msg-hash)
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(puthash "subj" (nth 7 msg-list) msg-hash)
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(puthash "body" (nth 8 msg-list) msg-hash)
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(puthash "time" (nth 9 msg-list) msg-hash)
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(puthash "unread" (nth 10 msg-list) msg-hash)))
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msg-hash))
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(defun get-echo-messages (echo)
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"Get ECHO messages ordered by time."
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(let (msgs)
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(setq msgs (make-list 0 (make-hash-table :test 'equal)))
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(dolist (l (if idec-desc-local-echo-sort
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(and (message "Desc select")
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(idec-db-desc-echo-select echo))
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(and (message "Normal select")
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(idec-db-normal-echo-select echo))))
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(if (> (length l) 0)
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(setq msgs (append msgs (make-list 1 (make-hash-from-msg-list l))))))
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msgs))
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(defun idec-db-normal-echo-select (echo)
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"Select from ECHO in normal order."
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(emacsql (open-echo-db echo)
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[:select [id, tags, author, address, recipient, repto, echo, subj, body, time, unread]
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:from messages
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:order-by rowid]))
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(defun idec-db-desc-echo-select (echo)
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"Select from ECHO in desc order."
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(emacsql (open-echo-db echo)
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[:select [id, tags, author, address, recipient, repto, echo, subj, body, time, unread]
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:from messages
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:order-by rowid
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:desc]))
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(defun get-echo-subjects (echo)
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"Get list of subjects from ECHO."
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(let (subjects)
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(setq subjects (make-list 0 ""))
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(dolist (l (emacsql (open-echo-db echo)
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[:select [subj]
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:from messages]))
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(setq subjects (append subjects (make-list 1 (nth 0 l)))))
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subjects))
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(defun get-echo-unread-messages (echo)
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"Get count of unread messages from ECHO database."
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(car (car (emacsql (open-echo-db echo)
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[:select (funcall count id)
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:from messages
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:where (= unread 1)]))))
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(defun get-echo-messages-count (echo)
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"Get count of all messages in ECHO."
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(car (car (emacsql (open-echo-db echo)
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[:select (funcall count id)
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:from messages]))))
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(defun idec-db-get-message-by-id (msgid &optional echo)
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"Retrieve message by MSGID from ECHO database."
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(make-hash-from-msg-list (car (emacsql (open-echo-db echo)
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[:select [id, tags, author, address, recipient, repto, echo, subj, body, time, unread]
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:from messages
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:where (= id $s1)]
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msgid))))
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(defun delete-message-from-db (msgid echo)
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"Delete message by MSGID from ECHO database."
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(when (not
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(emacsql (open-echo-db echo) [:delete :from messages :where (= id $s1)] msgid))
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(message (concat "IDEC: Message " msgid " deleted"))))
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(defun check-message-in-db (msgid echo)
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"Check message MSGID in ECHO database."
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(init-echo-db echo)
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(if (not (emacsql (open-echo-db echo)
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[:select [id]
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:from messages
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:where (= id $s1)]
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msgid))
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t
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nil))
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(defun mark-message-read (msgid echo)
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"Mark message MSGID as read in ECHO database."
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(message (concat "Mark read message " msgid " in " echo))
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(emacsql (open-echo-db echo)
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[:update messages
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:set (= unread 0)
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:where (= id $s1)]
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msgid))
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(defun mark-all-messages-as-read (echo)
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"Mark all messages in ECHO as read."
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(message (concat "IDEC: RECEIVE ECHO: " echo))
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(if (not (string= "" echo))
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(emacsql (open-echo-db echo)
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[:update messages :set (= unread 0)])
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(message "IDEC: empty echo receive in `mark-all-messages-as-read'")))
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(provide 'idec-db)
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;;; idec-db.el ends here
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