IPTC tag extraction

1 files changed, 15 insertions, 0 deletions

diff --git a/bsie/lib/naming_policy.py b/bsie/lib/naming_policy.py
index 9b9a45d..3e7c940 100644
--- a/bsie/lib/naming_policy.py
+++ b/bsie/lib/naming_policy.py
@@ -4,6 +4,9 @@ import abc
 import os
 import typing
 
+# external imports
+import urllib.parse
+
 # bsie imports
 from bsie.utils import bsfs, errors, ns
 from bsie.utils.node import Node
@@ -84,6 +87,8 @@ class DefaultNamingPolicy(NamingPolicy):
             return self.name_file(node)
         if node.node_type == ns.bsn.Preview:
             return self.name_preview(node)
+        if node.node_type == ns.bsn.Tag:
+            return self.name_tag(node)
         raise errors.ProgrammingError('no naming policy available for {node.node_type}')
 
     def name_file(self, node: Node) -> Node:
@@ -112,4 +117,14 @@ class DefaultNamingPolicy(NamingPolicy):
         node.uri = getattr(self._prefix.preview(), fragment)
         return node
 
+    def name_tag(self, node: Node) -> Node:
+        # NOTE: Must ensure to produce the same name for that tags with the same label.
+        if 'label' in node.hints: # tag label
+            fragment = urllib.parse.quote(node.hints['label'])
+        else: # random name
+            fragment = self._uuid()
+        # FIXME: match to existing tags in bsfs storage!
+        node.uri = getattr(self._prefix.tag(), fragment)
+        return node
+
 ## EOF ##