From aea875bcdeb8e706f2a6c441c4abc1604913ae78 Mon Sep 17 00:00:00 2001
From: Erik Hetzner <egh@e6h.org>
Date: Fri, 7 May 2021 18:00:30 -0700
Subject: [PATCH] Extract from @graph in json-ld

Fix for #58
---
 org-chef-json-ld.el             |  4 ++++
 tests/json-ld-sample-graph.json | 37 +++++++++++++++++++++++++++++++++
 tests/org-chef-json-ld-test.el  |  8 +++++++
 3 files changed, 49 insertions(+)
 create mode 100644 tests/json-ld-sample-graph.json

diff --git a/org-chef-json-ld.el b/org-chef-json-ld.el
index 456b7fd..bcb2c93 100644
--- a/org-chef-json-ld.el
+++ b/org-chef-json-ld.el
@@ -91,6 +91,10 @@
                 (and (stringp type)
                      (string= type "Recipe"))))
          json)
+        ((and (json-alist-p json)
+              (assq '@graph json)
+              (sequencep (cdr (assq '@graph json))))
+         (cl-some #'org-chef-json-ld-extract-recipe (cdr (assq '@graph json))))
         ((and (not (json-alist-p json))
               (sequencep json))
          (cl-some #'org-chef-json-ld-extract-recipe json))
diff --git a/tests/json-ld-sample-graph.json b/tests/json-ld-sample-graph.json
new file mode 100644
index 0000000..5cbefe7
--- /dev/null
+++ b/tests/json-ld-sample-graph.json
@@ -0,0 +1,37 @@
+{
+  "@context": "https://schema.org",
+  "@graph": [
+    {
+      "@context": "https://schema.org",
+      "@type": "Recipe",
+      "author": "Jake Smith",
+      "cookTime": "PT2H",
+      "datePublished": "2015-05-18",
+      "description": "Your recipe description goes here",
+      "image": "http://www.example.com/images.jpg",
+      "recipeIngredient": [
+        "ingredient 1",
+        "ingredient 2",
+        "ingredient 3",
+        "ingredient 4",
+        "ingredient 5"
+      ],
+      "interactionStatistic": {
+        "@type": "InteractionCounter",
+        "interactionType": "http://schema.org/Comment",
+        "userInteractionCount": "5"
+      },
+      "name": "Rand's Cookies",
+      "nutrition": {
+        "@type": "NutritionInformation",
+        "calories": "1200 calories",
+        "carbohydrateContent": "12 carbs",
+        "proteinContent": "9 grams of protein",
+        "fatContent": "9 grams fat"
+      },
+      "prepTime": "PT15M",
+      "recipeInstructions": "This is the long part, etc.",
+      "recipeYield": "12 cookies"
+    }
+  ]
+}
diff --git a/tests/org-chef-json-ld-test.el b/tests/org-chef-json-ld-test.el
index 790cbc7..f705a62 100644
--- a/tests/org-chef-json-ld-test.el
+++ b/tests/org-chef-json-ld-test.el
@@ -16,6 +16,14 @@
     (should (eq 5 (length ingredients)))
     (should (string= "ingredient 1" (elt ingredients 0)))))
 
+(ert-deftest org-chef-json-ld-extract-recipe-graph ()
+  (let* ((json (json-read-file "json-ld-sample-graph.json"))
+         (recipe (org-chef-json-ld-extract-recipe json))
+         (ingredients (cdr (assq 'recipeIngredient recipe))))
+    (should (string= "PT2H" (cdr (assq 'cookTime recipe))))
+    (should (eq 5 (length ingredients)))
+    (should (string= "ingredient 1" (elt ingredients 0)))))
+
 (ert-deftest org-chef-json-ld-parse-duration ()
   (should (string= "1 hour" (org-chef-json-ld-parse-duration "PT1H")))
   (should (string= "1 hour" (org-chef-json-ld-parse-duration "PT01H")))