From 5dfd1950d1f426f42a367ff9afe8d0d10497c34f Mon Sep 17 00:00:00 2001
From: Marcell Mars <ki.ber@kom.uni.st>
Date: Mon, 4 Apr 2022 13:46:55 +0200
Subject: [PATCH] more parsing of zotero's rdf..

---
 cmd/build.go | 96 ++++++++++++++++++++++++++++++++++++++--------------
 1 file changed, 70 insertions(+), 26 deletions(-)

diff --git a/cmd/build.go b/cmd/build.go
index d6ed048..dc68913 100644
--- a/cmd/build.go
+++ b/cmd/build.go
@@ -4,7 +4,6 @@ import (
 	"encoding/xml"
 	"fmt"
 	"log"
-	"os"
 
 	"accorder/pkg/calibre"
 
@@ -13,16 +12,23 @@ import (
 	"github.com/spf13/viper"
 )
 
-type FileAttachment struct {
-	XMLName xml.Name `xml:"resource"`
-	Path    string   `xml:"resource,attr"`
+// best zotero rdf documentation:
+// https://github.com/zotero/translators/blob/master/Zotero%20RDF.js
+//
+
+type ZoteroItem struct {
+	XMLName     xml.Name       `xml:"zoteroItem"`
+	FilePath    string         `xml:"filePath"`
+	MimeType    string         `xml:"mimeType"`
+	Publisher   string         `xml:"publisher,omitempty"`
+	Authors     []ZoteroAuthor `xml:"authors"`
+	Title       string         `xml:"title"`
+	Description string         `xml:"description,omitempty"`
 }
 
-type ZoteroAttachment struct {
-	XMLName        xml.Name `xml:"Attachment"`
-	ReferenceID    string   `xml:"about,attr"`
-	FileAttachment FileAttachment
-	FileType       string `xml:"type"`
+type ZoteroAuthor struct {
+	XMLName xml.Name `xml:"authors"`
+	Author  string   `xml:"author"`
 }
 
 var buildCmd = &cobra.Command{
@@ -74,32 +80,70 @@ should be enough for the next successful build).`,
 		if err := doc.ReadFromFile(bibtexPath); err != nil {
 			panic(err)
 		}
-		var zoteroAttachment ZoteroAttachment
 		root := doc.SelectElement("rdf:RDF")
-		for _, z := range root.FindElements("[name()='link:type']") {
-			doc := etree.NewDocument()
-			doc.SetRoot(z.Parent().Copy())
-			if z.Text() != "application/pdf" {
+		for _, attachmentNode := range root.FindElements("[name()='link:type']") {
+			var zoteroItem ZoteroItem
+			if attachmentNode.Text() != "application/pdf" {
 				continue
 			}
-			doc.WriteTo(os.Stdout)
-			b, err := doc.WriteToBytes()
+			newDoc := etree.NewDocument()
+			zoteroUnion := newDoc.CreateElement("zoteroItem")
+			filePathElement := zoteroUnion.CreateElement("filePath")
+			filePathQuery := attachmentNode.Parent().FindElement("[name()='rdf:resource']").SelectAttr("rdf:resource").Value
+			filePathElement.CreateText(filePathQuery)
+			mimeTypeElement := zoteroUnion.CreateElement("mimeType")
+			mimeType := attachmentNode.Text()
+			mimeTypeElement.CreateText(mimeType)
+
+			bibliographyNode := root.FindElement(fmt.Sprintf("[@rdf:resource='%s']", attachmentNode.Parent().SelectAttr("rdf:about").Value)).Parent().Copy()
+
+			publisherQuery := bibliographyNode.FindElement("[name()='foaf:name']")
+			if publisherQuery != nil {
+				publisherElement := zoteroUnion.CreateElement("publisher")
+				publisher := publisherQuery.Text()
+				publisherElement.CreateText(publisher)
+			}
+
+			authorsQuery := bibliographyNode.FindElements("[name()='foaf:Person']")
+			authors := zoteroUnion.CreateElement("authors")
+			for _, authorNode := range authorsQuery {
+				var firstName, surName string
+				author := authors.CreateElement("author")
+
+				firstNameNode := authorNode.FindElement("[name()='foaf:givenName']")
+				if firstNameNode != nil {
+					firstName = firstNameNode.Text()
+				}
+				surNameNode := authorNode.FindElement("[name()='foaf:surname']")
+				if surNameNode != nil {
+					surName = surNameNode.Text()
+				}
+				author.CreateText(fmt.Sprintf("%s %s", firstName, surName))
+			}
+
+			titleQuery := bibliographyNode.FindElement("[name()='dc:title']")
+			if titleQuery != nil {
+				titleNode := zoteroUnion.CreateElement("title")
+				title := titleQuery.Text()
+				titleNode.CreateText(title)
+			}
+
+			descriptionQuery := bibliographyNode.FindElement("[name()='dcterms:abstract']")
+			if descriptionQuery != nil {
+				descriptionNode := zoteroUnion.CreateElement("description")
+				description := descriptionQuery.Text()
+				descriptionNode.CreateText(description)
+			}
+			// newDoc.WriteTo(os.Stdout)
+			b, err := newDoc.WriteToBytes()
 			if err != nil {
 				log.Fatal(err)
 			}
-			if err := xml.Unmarshal(b, &zoteroAttachment); err != nil {
+			if err := xml.Unmarshal(b, &zoteroItem); err != nil {
 				log.Fatalln(err)
 			}
-			fmt.Printf("\nZOTEROATTACHMENT: %#v\n", zoteroAttachment)
+			fmt.Printf("\nZoteroItem: %#v\n", zoteroItem)
 
-			fmt.Println(z.Text())
-			fmt.Println("~ ~ ~ ~")
-			fmt.Println(doc.WriteTo(os.Stdout))
-			elm := root.FindElement(fmt.Sprintf("[@rdf:resource='%s']", z.Parent().SelectAttr("rdf:about").Value))
-			doc.SetRoot(elm.Parent().Copy())
-			fmt.Println("+++++")
-			fmt.Println(doc.WriteTo(os.Stdout))
-			fmt.Println("~ ~ ~ ~")
 		}
 		calibre.RenderStandaloneApp(calibrePath, librarianName, libraryUUID, librarySecret, jsonPath)
 	},