Cache alot more so now it is usable

Fixes: #4

src/Channel/SVT/__init__.py

@@ -58,7 +58,7 @@ class SVT(Channel):
                 if not resolved_link:
                     continue
                 thumbnail = make_bitmap_from_url(
-                    thumbnail_link, wx.Size(int(self.m_screen_width), 150))
+                    thumbnail_link, wx.Size(int(self.m_screen_width), 150), video_id)
                 item = Item(description, resolved_link, self.m_provider_name,
                             published_parsed, thumbnail, title)
                 self.m_items.append(item)
@@ -90,7 +90,7 @@ class SVT(Channel):
                 if not resolved_link:
                     continue
                 thumbnail = make_bitmap_from_url(
-                    thumbnail_link, wx.Size(int(self.m_screen_width), 150))
+                    thumbnail_link, wx.Size(int(self.m_screen_width), 150), video_id)
                 item = Item(description,
                             resolved_link,
                             self.m_provider_name,
@@ -106,6 +106,8 @@ class SVT(Channel):
             entries = get_svt_category(self.m_id)
             for entry in entries:
                 elem = entry["item"]
+                url = elem["urls"]["svtplay"]
+                video_id = hash_string(url.split('/')[1])
                 svt_id = elem["videoSvtId"]
                 resolved_link = self.resolve_link(svt_id)
                 if not resolved_link:
@@ -118,7 +120,7 @@ class SVT(Channel):
                     elem['images']["wide"]["changed"],
                     size=self.m_screen_width)
                 thumbnail = make_bitmap_from_url(
-                    thumbnail_link, wx.Size(int(self.m_screen_width), 150))
+                    thumbnail_link, wx.Size(int(self.m_screen_width), 150), video_id)
                 item = Item(description, resolved_link, self.m_provider_name,
                             published_parsed, thumbnail, title)
                 self.m_items.append(item)

src/Utils/__init__.py

@@ -22,6 +22,7 @@ BASEPATH = path.join(str(environ.get("HOME")), '.config/cast')
 DB_FILE_NAME = 'cast.db'
 SUB_TABLE = 'subscriptions'
 VIDEO_TABLE = 'videos'
+USE_CACHED_CATEGORIES = False
 
 
 def add_video(video_id: str,
@@ -76,7 +77,16 @@ def get_svt_thumb_from_id_changed(id: str,
         size, id, changed)
 
 
-def get_all_svt_categories() -> list:
+def get_all_svt_categories(basepath=BASEPATH) -> list:
+    global USE_CACHED_CATEGORIES
+    categoryfile = path.join(basepath,"categories.json")
+    if USE_CACHED_CATEGORIES:
+        if path.isfile(categoryfile):
+            with open(categoryfile, 'r') as jfile:
+                return(json.loads(jfile.read()))
+
+
+
     categories: list = list()
     url = "https://www.svtplay.se/kategori"
     data = get_svt_data(url)
@@ -84,6 +94,9 @@ def get_all_svt_categories() -> list:
         if 'genres' in entry.keys():
             categories = entry['genres']
             break
+    with open(categoryfile, 'w') as jfile:
+        jfile.write(json.dumps(categories))
+    USE_CACHED_CATEGORIES = True
     return categories
 
 
@@ -295,7 +308,14 @@ def make_sized_button(parent_pnl: wx.Panel, bitmap_or_str: Union[wx.Bitmap,
     return btn_sizer
 
 
-def make_bitmap_from_url(logo_url: str, size: wx.Size = SIZE) -> wx.Bitmap:
+def make_bitmap_from_url(logo_url: str, size: wx.Size = SIZE, video_id: str = "") -> wx.Bitmap:
+    if not video_id:
+        video_id = hash_string(logo_url)
+    thumbpath = path.join(BASEPATH, 'thumbnails')
+    thumbnail = path.join(thumbpath, video_id)
+    if path.isfile(thumbnail):
+        return make_bitmap_from_file(thumbnail, size)
+
     res = requests.get(logo_url)
     content = res.content
     content_bytes = io.BytesIO(content)
@@ -305,7 +325,12 @@ def make_bitmap_from_url(logo_url: str, size: wx.Size = SIZE) -> wx.Bitmap:
     height = image.GetHeight()
     size.SetHeight(int(height / scale_factor))
     image.Rescale(size.GetWidth(), size.GetHeight())
-    return wx.Bitmap(image)
+    bitmap = wx.Bitmap(image)
+    if not path.isdir(thumbpath):
+        makedirs(thumbpath)
+    if not path.isfile(thumbnail):
+        bitmap.SaveFile(thumbnail, wx.BITMAP_TYPE_PNG)
+    return bitmap
 
 
 def make_bitmap_from_file(path, size: wx.Size = SIZE) -> wx.Bitmap: