backend tag handling

cgi/autodoc.fcgi

 	api_v1_GET_documents_id			=> \&api_v1_GET_documents_id,
 	api_v1_GET_pages_id				=> \&api_v1_GET_pages_id,
 	api_v1_PATCH_documents_id		=> \&api_v1_PATCH_documents_id,
+	api_v1_GET_tags					=> \&api_v1_GET_tags,
+	api_v1_POST_tags				=> \&api_v1_POST_tags,
+	api_v1_PATCH_tags_id			=> \&api_v1_PATCH_tags_id,
+	api_v1_DELETE_tags_id			=> \&api_v1_DELETE_tags_id
 );
 
 my $request = FCGI::Request();
 	return (200);
 }
 
+# handle tags
+sub api_v1_GET_tags {
+	my($id, $qs, $post, $user) = @_;
+	my @tags;
+	my $q = sqlquery($dbh, "SELECT * FROM tags ORDER by tag DESC");
+	while(my $h = $q->fetchrow_array()) {
+		push @tags, {
+			id => $h->{id},
+			name => $h->{tag},
+			color => $h->{color}
+		}
+	}
+	return (200, undef, "application/json", \@tags);
+}
+sub api_v1_POST_tags {
+	my($id, $qs, $post, $user) = @_;
+
+	sqlquery($dbh, "INSERT INTO tags SET id=UUID(), tag=?, color=?", $qs->{tagName}, $qs->{tagColor});
+
+	return (200);
+}
+sub api_v1_PATCH_tags_id {
+	my($id, $qs, $post, $user) = @_;
+
+	sqlquery($dbh, "UPDATE tags SET tag=?, color=? WHERE id=?", $qs->{tagName}, $qs->{tagColor}, $id);
+	
+	return (200);
+}
+sub api_v1_DELETE_tags_id {
+	my($id, $qs, $post, $user) = @_;
+
+	sqlquery($dbh, "DELETE FROM tags WHERE id=?", $id);
+	return (200);
+}
+
+
 sub get_array {
 	my($x) = @_;
 	my @arr;

etc/openapi.json

                 "parameters": [
                     {
                         "name": "tagName",
-                        "in":"query",
+                        "in": "query",
                         "required": true,
                         "schema": {
                             "type": "string"