Parser functional for initial epub details

parser.py

@@ -6,59 +6,90 @@ import collections
 import ebooklib.epub
 
 
-def get_book_essentials(filename):
-    book = ebooklib.epub.read_epub(filename)
+class ParseEPUB:
+    def __init__(self, filename):
+        self.filename = filename
+        self.book_title = None
+        try:
+            self.book = ebooklib.epub.read_epub(filename)
+        except (KeyError, AttributeError):
+            print('Cannot parse ' + self.filename)
+            return
 
-    # Get book title
-    title = book.title.strip()
+    def get_title(self):
+        return self.book.title.strip()
 
-    # Get cover image
-    # This seems hack-ish, but that's never stopped me before
-    image_path = None
-    try:
-        cover = book.metadata['http://www.idpf.org/2007/opf']['cover'][0][1]['content']
-        cover_item = book.get_item_with_id(cover)
+    def get_cover_image(self):
+        # Get cover image
+        # This seems hack-ish, but that's never stopped me before
+        image_path = None
+        try:
+            cover = self.book.metadata['http://www.idpf.org/2007/opf']['cover'][0][1]['content']
+            cover_item = self.book.get_item_with_id(cover)
+            if cover_item:
+                return cover_item.get_content()
 
-        # In case no cover_item is returned, we search the items
-        # in the book and get the first referenced image
-        if not cover_item:
-            for j in book.guide:
+            # In case no cover_item is returned,
+            # we look for a cover in the guide
+            for j in self.book.guide:
                 try:
-                    if (j['title'].lower in ['cover', 'cover-image', 'coverimage'] or j['type'] == 'coverimagestandard'):
+                    if (j['title'].lower in ['cover', 'cover-image', 'coverimage'] or
+                            j['type'] == 'coverimagestandard'):
                         image_path = j['href']
                     break
                 except KeyError:
                     pass
 
+            # And if all else fails, we find
+            # the first image referenced in the book
+            # Fuck everything
             if not image_path:
-                for j in book.items:
+                for j in self.book.items:
                     if j.media_type == 'application/xhtml+xml':
                         _regex = re.search(r"src=\"(.*)\"\/", j.content.decode('utf-8'))
                         if _regex:
                             image_path = _regex[1]
                         break
 
-            for k in book.get_items_of_type(ebooklib.ITEM_IMAGE):
+            for k in self.book.get_items_of_type(ebooklib.ITEM_IMAGE):
                 if os.path.basename(k.file_name) == os.path.basename(image_path):
                     image_content = k.get_content()
+                    break
 
-        else:
-            image_content = cover_item.get_content()
+            return image_content
 
-    except KeyError:
-        print('Cannot parse ' + filename)
+        except KeyError:
+            print('Cannot parse ' + self.filename)
+            return
 
-    # Get ISBN ID
-    isbn_id = None
-    try:
-        identifier = book.metadata['http://purl.org/dc/elements/1.1/']['identifier']
-        for i in identifier:
-            identifier_provider = i[1]['{http://www.idpf.org/2007/opf}scheme']
-            if identifier_provider.lower() == 'isbn':
-                isbn_id = i[0]
-                break
-    except KeyError:
-        pass
+    def get_isbn(self):
+        try:
+            identifier = self.book.metadata['http://purl.org/dc/elements/1.1/']['identifier']
+            for i in identifier:
+                identifier_provider = i[1]['{http://www.idpf.org/2007/opf}scheme']
+                if identifier_provider.lower() == 'isbn':
+                    isbn = i[0]
+                    return isbn
+        except KeyError:
+            return
 
-    with open('/home/akhil/aa.jpg', 'bw') as myimg:
-        myimg.write(image_content)
+
+class BookSorter:
+    def __init__(self, file_list):
+        # Have the GUI pass a list of files straight to here
+        # Then, on the basis of what is needed, pass the
+        # filenames to the requisite functions
+        # This includes getting file info for the database
+        # Parsing for the reader proper
+        # Caching upon closing
+        self.file_list = file_list
+
+    def add_to_database(self):
+        # Consider multithreading this
+        for i in self.file_list:
+            book_ref = ParseEPUB(i)
+            title = book_ref.get_title()
+            cover_image = book_ref.get_cover_image()
+            isbn = book_ref.get_isbn()
+
+            print(title, isbn)