From fa1e2b68fdc8426b0e6239c65361b605eba5fe7b Mon Sep 17 00:00:00 2001
From: Bryan Newbold <bnewbold@archive.org>
Date: Fri, 22 Oct 2021 19:04:16 -0700
Subject: initial CSL conversion test

---
 grobid_tei_xml/types.py | 34 +++++++++++++++++++++++++++++++++-
 tests/test_csl.py       | 40 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 73 insertions(+), 1 deletion(-)
 create mode 100644 tests/test_csl.py

diff --git a/grobid_tei_xml/types.py b/grobid_tei_xml/types.py
index b78b236..199e746 100644
--- a/grobid_tei_xml/types.py
+++ b/grobid_tei_xml/types.py
@@ -99,7 +99,8 @@ class GrobidCitation:
 
     def to_csl_dict(self, default_type: str = "article-journal") -> dict:
         """
-        Transforms in to Citation Style Language (CSL) JSON schema
+        Transforms in to Citation Style Language (CSL) JSON schema, as a dict
+        (not an actual JSON string)
         """
         csl = dict(
             type=default_type,
@@ -148,6 +149,27 @@ class GrobidHeader:
     doi: Optional[str] = None
     journal: Optional[GrobidJournal] = None
 
+    def to_csl_dict(self, default_type: str = "article-journal") -> dict:
+
+        csl = dict(
+            type=default_type,
+            author=[a.to_csl_dict() for a in self.authors or []],
+            issued=_csl_date(self.date),
+            title=self.title,
+            DOI=self.doi,
+        )
+
+        if self.journal:
+            csl['publisher'] = self.journal.publisher
+            if self.journal.name:
+                csl['container-title'] = self.journal.name
+            if self.journal.issue and self.journal.issue.isdigit():
+                csl['issue'] = int(self.issue)
+            if self.journal.volume and self.journal.volume.isdigit():
+                csl['volume'] = int(self.volume)
+
+        return _simplify_dict(csl)
+
 
 @dataclass
 class GrobidDocument:
@@ -209,6 +231,16 @@ class GrobidDocument:
         self.acknowledgement = None
         self.annex = None
 
+    def to_csl_dict(self, default_type: str = "article-journal") -> dict:
+        """
+        Transforms in to Citation Style Language (CSL) JSON schema, as a dict
+        (not an actual JSON string)
+        """
+        if not self.header:
+            return {}
+        else:
+            return self.header.to_csl_dict(default_type=default_type)
+
 
 def _simplify_dict(d: dict) -> dict:
     """
diff --git a/tests/test_csl.py b/tests/test_csl.py
new file mode 100644
index 0000000..9c8bd5f
--- /dev/null
+++ b/tests/test_csl.py
@@ -0,0 +1,40 @@
+from grobid_tei_xml import parse_document_xml
+
+
+def test_small_xml_csl() -> None:
+
+    with open('tests/files/small.xml', 'r') as f:
+        tei_xml = f.read()
+
+    d = parse_document_xml(tei_xml)
+    assert d.to_csl_dict() == {
+        "type": "article-journal",
+        "title": "Dummy Example File",
+        "author": [
+            {
+                "given": "Brewster",
+                "family": "Kahle"
+            },
+            {
+                "given": "J",
+                "family": "Doe",
+            },
+        ],
+        "container-title": "Dummy Example File. Journal of Fake News. pp. 1-2. ISSN 1234-5678",
+        "issued": [[2000]],
+    }
+
+    assert d.citations[0].to_csl_dict() == {
+        "type": "article-journal",
+        "title": "Everything is Wonderful",
+        "author": [
+            {
+                "given": "A",
+                "family": "Seaperson"
+            },
+        ],
+        "container-title": "Letters in the Alphabet",
+        "issued": [[2001]],
+        "volume": 20,
+        "page": "1-11",
+    }
-- 
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