From 08da0f5665089de3b3efcd8be67ecd6911b2e34c Mon Sep 17 00:00:00 2001
From: Oscar Najera <hi@oscarnajera.com>
Date: Sat, 19 Oct 2024 23:46:01 +0200
Subject: grocy update product

---
 elisp/grocy.el | 59 ++++++++++++++++++++++++++++++++++++++++++++++++++++++----
 1 file changed, 55 insertions(+), 4 deletions(-)

(limited to 'elisp/grocy.el')

diff --git a/elisp/grocy.el b/elisp/grocy.el
index 90d96a7..6001a70 100644
--- a/elisp/grocy.el
+++ b/elisp/grocy.el
@@ -15,10 +15,13 @@
 ;;
 ;;; Commentary:
 ;;
-;;  Grocy emacs frontend
+;;  Grocy Emacs frontend
 ;;
 ;;; Code:
 
+(require 'url)
+(require 'dash)
+
 ;; Silence byte-compiler.
 (defvar url-http-end-of-headers)
 
@@ -26,18 +29,18 @@
 (defvar grocy-locations)
 
 (defcustom grocy-server ""
-  "Grocy main domain"
+  "Grocy main domain."
   :type 'string
   :group 'grocy)
 
 (defcustom grocy-api-key ""
-  "API key to authenticate to grocy server"
+  "API key to authenticate to grocy server."
   :type 'string
   :group 'grocy)
 
 (defun grocy--request (endpoint callback &optional method data)
   "Do a GET request to api ENDPOINT and call CALLBACK on the resulting buffer.
-Set METHOD to other request types and include the alredy encoded DATA."
+Set METHOD to other request types and include the already encoded DATA."
   (let ((url-request-method (or method "GET"))
         (url-request-extra-headers
          `(("GROCY-API-KEY" . ,grocy-api-key)
@@ -49,6 +52,7 @@ Set METHOD to other request types and include the alredy encoded DATA."
      callback)))
 
 (defun grocy-update-units ()
+  "Update localdb with units."
   (grocy--request
    "objects/quantity_units"
    (lambda (_status)
@@ -64,6 +68,7 @@ Set METHOD to other request types and include the alredy encoded DATA."
        (setq grocy-units result)))))
 
 (defun grocy-update-locations ()
+  "Update localdb with locations."
   (grocy--request
    "objects/locations"
    (lambda (_status)
@@ -77,7 +82,11 @@ Set METHOD to other request types and include the alredy encoded DATA."
         (json-parse-buffer :object-type 'plist))
        (setq grocy-locations result)))))
 
+(grocy-update-units)
+(grocy-update-locations)
+
 (defun grocy-stock--row (row)
+  "Compose ROW into tabulated entry for stock view."
   (-let* (((&alist 'amount 'amount_opened 'product 'best_before_date) row)
           ((&alist 'name 'qu_id_stock) product)
           (amount
@@ -116,6 +125,8 @@ Set METHOD to other request types and include the alredy encoded DATA."
          (display-buffer (current-buffer)))))))
 
 (defun grocy-products ()
+  "Render tabulated list view of products."
+  (interactive)
   (grocy--request
    "objects/products"
    (lambda (_status)
@@ -141,9 +152,49 @@ Set METHOD to other request types and include the alredy encoded DATA."
                                      (number-to-string min_stock_amount)))))
                    result)
            (setq tabulated-list-entries))
+         (local-set-key "e" #'grocy-update-product)
          (tabulated-list-init-header)
          (tabulated-list-print)
          (display-buffer (current-buffer)))))))
 
+(defun grocy-update-product ()
+  "Update form for currently selected product."
+  (interactive)
+  (let* ((product (tabulated-list-get-id))
+         (id (gethash "id" product)))
+    (with-current-buffer (get-buffer-create "* Grocy update product *")
+      (erase-buffer)
+      (thread-first
+        product
+        (map-into 'alist)
+        (pp (current-buffer)))
+      (emacs-lisp-mode)
+      (keymap-local-set "C-c C-c"
+                        (lambda () (interactive)
+                          (grocy-update-object (format "products/%d" id))
+                          (kill-buffer)))
+      (switch-to-buffer (current-buffer)))))
+
+(defun grocy-buffer-obj->json (buffer)
+  "On the BUFFER read Lisp object and encode it into json."
+  (let ((json-null :null))
+    (with-current-buffer buffer
+      (goto-char (point-min))
+      (thread-first
+        (current-buffer)
+        (read)
+        (json-encode)
+        (encode-coding-string 'utf-8)))))
+
+(defun grocy-update-object (object-endpoint)
+  "Update on the OBJECT-ENDPOINT with the Lisp object on buffer."
+  (grocy--request
+   (format "objects/%s" object-endpoint)
+   (lambda (status)
+     (when status
+       (message "%S\n%S" status (buffer-string))))
+   "PUT"
+   (grocy-buffer-obj->json (current-buffer))))
+
 (provide 'grocy)
 ;;; grocy.el ends here
-- 
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