Initialise samples uploads

* Move existing code to new module
* Rework the UI: create new templates
* Rework the routes: Select species and populations before attempting
  an upload.

1 files changed, 21 insertions, 0 deletions

diff --git a/uploader/datautils.py b/uploader/datautils.py
new file mode 100644
index 0000000..b95a9e0
--- /dev/null
+++ b/uploader/datautils.py
@@ -0,0 +1,21 @@
+"""Generic data utilities: Rename module."""
+import math
+from functools import reduce
+
+def order_by_family(items: tuple[dict, ...],
+                    family_key: str = "Family",
+                    order_key: str = "FamilyOrderId") -> list:
+    """Order the populations by their families."""
+    def __family_order__(item):
+        orderval = item[order_key]
+        return math.inf if orderval is None else orderval
+
+    def __order__(ordered, current):
+        _key = (__family_order__(current), current[family_key])
+        return {
+            **ordered,
+            _key: ordered.get(_key, tuple()) + (current,)
+        }
+
+    return sorted(tuple(reduce(__order__, items, {}).items()),
+                  key=lambda item: item[0][0])