WillTools 2026-09-09 -- clean snapshot of the development repo for review

History-free snapshot of the private development repository at 77a82eb. Code, docs and the public catalogue only: no plant or job knowledge layers, no client, job or producer names (tools/scrub.py clean against the widened term list; a second word-level grep clean). The intro deck is left out because its slide images cannot be checked for job drawings.
2026-09-09 08:35:15 -05:00
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+# -*- coding: utf-8 -*-
+"""Concrete of the cast piece that is not the panel rectangle.
+
+A slab-seat ledge is modelled as its own family inside the assembly. It is
+real concrete -- on WP371 it carried 8.99 ft3 = 1,349 lb, 7.5% of the piece
+-- and leaving it out made the weight reconciliation accuse a correct model.
+The lump rides at no station, so it is added to the geometric weight whole;
+the statics rescale to the stated weight regardless, and this is what makes
+that reconciliation honest.
+"""
+import pytest
+
+from panellift import cli, section
+
+from conftest import make_panel
+
+
+LEDGE_FT3 = 8.992          # what WP371's LEDGE family actually measured
+LEDGE_LB = LEDGE_FT3 * 150.0
+
+
+def test_extra_cast_is_added_to_the_geometric_weight():
+    """The ledge is weight whether or not it sits at a station."""
+    bare = make_panel()
+    ledged = make_panel()
+    ledged.extra_cast_ft3 = LEDGE_FT3
+
+    expected = section.geometric_weight_lb(bare) + LEDGE_LB
+    assert section.geometric_weight_lb(ledged) == pytest.approx(expected)
+
+
+def test_reconciliation_clears_when_the_ledge_is_counted():
+    """A panel whose stated weight includes the ledge must not be accused."""
+    panel = make_panel()
+    panel.extra_cast_ft3 = LEDGE_FT3
+    panel.weight_lb = section.geometric_weight_lb(panel)
+
+    _geom, _stated, error = section.weight_reconciliation(panel)
+    assert abs(error) < 0.001
+
+
+def test_reconciliation_still_catches_a_missing_ledge():
+    """Without the field, the old wrong answer is still visible.
+
+    The ledge here is sized as a share of THIS panel -- on the smaller
+    WP371 it was 7.5% of the piece, and check_weight warns past 5%.
+    """
+    panel = make_panel()
+    ledge_ft3 = 0.075 * (panel.length_ft * panel.width_ft *
+                         panel.thickness_ft)
+    panel.weight_lb = (section.geometric_weight_lb(panel)
+                       + ledge_ft3 * panel.unit_weight_pcf)
+
+    _geom, _stated, error = section.weight_reconciliation(panel)
+    assert error < -0.05                    # we are light by more than 5%
+
+
+def test_cli_reads_extra_cast_ft3():
+    """The job file carries the ledge, and the reader keeps it."""
+    import json
+
+    panel = make_panel()
+    panel.extra_cast_ft3 = LEDGE_FT3
+    data = json.loads(json.dumps({
+        'mark': panel.mark,
+        'length_ft': panel.length_ft,
+        'width_ft': panel.width_ft,
+        'thickness_in': panel.thickness_in,
+        'unit_weight_pcf': panel.unit_weight_pcf,
+        'extra_cast_ft3': LEDGE_FT3,
+    }))
+
+    assert cli.read_panel(data).extra_cast_ft3 == pytest.approx(LEDGE_FT3)
+
+
+def test_cli_treats_a_missing_field_as_no_ledge():
+    """Old job files without the key keep working, as zero."""
+    import json
+
+    data = json.loads(json.dumps({
+        'mark': 'OLD-1',
+        'length_ft': 32.0,
+        'width_ft': 10.0,
+        'thickness_in': 8.75,
+    }))
+
+    assert cli.read_panel(data).extra_cast_ft3 == 0.0