feat: 安全应用采购规格解析结果 (#257)

client/src/pdd_u2_purchase_adapter.py

@@ -54,6 +54,7 @@ from .pdd_purchase_adapter import (
     PddPurchaseError,
     PddPurchaseSpecResolutionRequired,
     PurchaseSizeObservation,
+    PurchaseSpecCandidate,
     PurchaseSpecCandidateSnapshot,
     PurchasePageState,
 )
@@ -1262,6 +1263,97 @@ class U2PddPurchaseAdapter(PddPurchaseAdapter):
         )
         return service.collect_second_dimension_candidates(device)
 
+    def apply_resolved_size(
+        self,
+        expected_snapshot: PurchaseSpecCandidateSnapshot,
+        candidate: PurchaseSpecCandidate,
+    ) -> None:
+        """重读并复算候选快照，只按响应中的页面原文选择一次尺码。"""
+
+        self._check_cancelled("purchase_resolve_options")
+        if (
+            expected_snapshot.goods_id != self._goods_id
+            or candidate not in expected_snapshot.candidates
+            or candidate.options.get("color") != expected_snapshot.selected_color
+            or candidate.options.get("size") != candidate.raw_text
+        ):
+            raise PddPurchaseError(
+                "PURCHASE_SPEC_RESOLUTION_INVALID",
+                "规格解析结果不属于本次商品和候选快照",
+                step="purchase_resolve_options",
+            )
+
+        current_xml = self._dump_hierarchy()
+        root = _parse_xml(current_xml)
+        if _page_kind(root, "") != "order_confirmation" or not _selected(
+            root, expected_snapshot.selected_color
+        ):
+            raise PddPurchaseError(
+                "PURCHASE_SPEC_CONTEXT_CHANGED",
+                "等待规格解析期间页面或已选颜色发生变化",
+                step="purchase_resolve_options",
+            )
+
+        current_xml = self._restore_purchase_panel_color_region(current_xml)
+        try:
+            dimension = self._size_candidate_collector(self._require_device())
+        except PddCollectError as exc:
+            raise PddPurchaseError(
+                "PURCHASE_SPEC_CANDIDATES_CHANGED",
+                f"无法重新完整读取尺码候选：{exc.message}",
+                step="purchase_resolve_options",
+                diagnostics={"candidate_scan_error": exc.code},
+            ) from exc
+        if dimension is None:
+            raise PddPurchaseError(
+                "PURCHASE_SPEC_CANDIDATES_CHANGED",
+                "等待规格解析期间尺码候选已经消失",
+                step="purchase_resolve_options",
+            )
+        self._validate_size_candidate_dimension(dimension)
+        current_snapshot = PurchaseSpecCandidateSnapshot.build(
+            goods_id=self._goods_id,
+            selected_color=expected_snapshot.selected_color,
+            target_size=expected_snapshot.target_size,
+            dimension_name=dimension.name,
+            observations=tuple(
+                PurchaseSizeObservation(item.text, item.available)
+                for item in dimension.values
+            ),
+            observed_at=expected_snapshot.observed_at,
+        )
+        if (
+            current_snapshot.dimension_name != expected_snapshot.dimension_name
+            or current_snapshot.candidate_snapshot_hash
+            != expected_snapshot.candidate_snapshot_hash
+            or current_snapshot.candidates != expected_snapshot.candidates
+        ):
+            raise PddPurchaseError(
+                "PURCHASE_SPEC_CANDIDATES_CHANGED",
+                "等待规格解析期间真机尺码候选已经变化",
+                step="purchase_resolve_options",
+            )
+
+        latest_xml = self._restore_purchase_panel_color_region(
+            self._dump_hierarchy()
+        )
+        if not self._select_size(
+            self._require_device(), latest_xml, candidate.raw_text, action_delay=0.2
+        ):
+            raise PddPurchaseError(
+                "PURCHASE_RESOLVED_SIZE_NOT_SELECTED",
+                "解析得到的原始尺码没有可靠选中",
+                step="purchase_resolve_options",
+            )
+        selected_xml = self._dump_hierarchy()
+        if not _selected(_parse_xml(selected_xml), candidate.raw_text):
+            raise PddPurchaseError(
+                "PURCHASE_RESOLVED_SIZE_NOT_SELECTED",
+                "点击解析尺码后页面没有确认选中",
+                step="purchase_resolve_options",
+            )
+        self._requested_options["size"] = candidate.raw_text
+
     def set_quantity(self, quantity: int) -> None:
         device = self._require_device()
         if isinstance(quantity, bool) or not isinstance(quantity, int) or quantity <= 0: