hyf

commit 5f0f5cae73c4a8226fc246a8b86adf92f1d3f5fc
parent 5af92a6e358724f456ab0fcd600ec33635b9d005
Author: triesap <tyson@radroots.org>
Date:   Mon, 21 Sep 2026 13:50:49 +0000

core: interpret buyer condition strength and negation

Diffstat:
A
src/hyf_application/buyer_conditions.mojo
 | 
33
+++++++++++++++++++++++++++++++++
M
tests/test_application.mojo
 | 
22
++++++++++++++++++++++

2 files changed, 55 insertions(+), 0 deletions(-)
diff --git a/src/hyf_application/buyer_conditions.mojo b/src/hyf_application/buyer_conditions.mojo
@@ -0,0 +1,33 @@
+from std.collections import Optional
+
+from hyf_core.domain.demand import Condition, condition
+
+
+def interpret_condition_strength(phrase: String) -> String:
+    var lowered = phrase.lower()
+    if lowered == "required" or lowered == "must" or lowered == "need":
+        return "mandatory"
+    if lowered == "ideally" or lowered == "prefer" or lowered == "preferred":
+        return "preferred"
+    if lowered == "not" or lowered == "no" or lowered == "exclude":
+        return "excluded"
+    if lowered == "fine" or lowered == "ok" or lowered == "permitted":
+        return "permitted"
+    return "preferred"
+
+
+def interpret_buyer_condition(
+    kind: String, phrase: String, value: Optional[String]
+) raises -> Condition:
+    var strength = interpret_condition_strength(phrase)
+    if strength == "excluded" and not value:
+        return condition(kind, strength, None)
+    return condition(kind, strength, value)
+
+
+def delivery_exclusion_means_pickup() -> Bool:
+    return False
+
+
+def missing_information_is_prohibition() -> Bool:
+    return False
diff --git a/tests/test_application.mojo b/tests/test_application.mojo
@@ -221,3 +221,25 @@ def test_buyer_discovers_multiple_demand_lines() raises:
     assert_equal(lines[0].product_phrase, "tomatoes")
     assert_equal(lines[1].product_phrase, "basil")
     assert_equal(lines[0].line_id, "line-1")
+
+
+from hyf_application.buyer_conditions import (
+    delivery_exclusion_means_pickup,
+    interpret_buyer_condition,
+    interpret_condition_strength,
+    missing_information_is_prohibition,
+)
+from std.collections import Optional
+
+
+def test_buyer_condition_strength_and_negation() raises:
+    assert_equal(interpret_condition_strength("required"), "mandatory")
+    assert_equal(interpret_condition_strength("ideally"), "preferred")
+    assert_equal(interpret_condition_strength("not"), "excluded")
+    assert_equal(interpret_condition_strength("fine"), "permitted")
+    var required = interpret_buyer_condition("fulfillment", "required", Optional[String]("delivery"))
+    assert_equal(required.strength, "mandatory")
+    var excluded = interpret_buyer_condition("fulfillment", "not", Optional[String]("pickup"))
+    assert_equal(excluded.strength, "excluded")
+    assert_true(not delivery_exclusion_means_pickup())
+    assert_true(not missing_information_is_prohibition())