refactor(rules): outcome→文案映射移出视图文件，落回 outcome 类型旁

ShadowsocksX-NG2/App/ProxyRuntimeController+CustomRules.swift

@@ -27,6 +27,55 @@ struct RuleDocumentCommit: Sendable {
   let document: CustomRuleDocument?
 }
 
+// MARK: - 结果呈现文案
+
+// outcome→文案映射与 outcome 类型同住，供状态行与编辑器两个视图共享。
+
+extension RulesCommitFeedback {
+  var summary: String {
+    guard outcome.isSuccess else { return outcome.rulesMessage }
+    let count: String
+    switch operation {
+    case .enablement(let enabled):
+      count = String.localizedStringWithFormat(
+        RulesCopy.text(enabled ? "已启用 %lld 条规则" : "已禁用 %lld 条规则"), Int64(changedCount))
+    case .add: count = RulesCopy.text("已新增规则")
+    case .edit: count = RulesCopy.text("已编辑规则")
+    case .delete:
+      count = String.localizedStringWithFormat(
+        RulesCopy.text("已删除 %lld 条自定义规则"), Int64(changedCount))
+    }
+    return count + " · " + RulesCopy.text("已保存")
+  }
+}
+
+extension CustomRuleUpdateOutcome {
+  var rulesMessage: String {
+    switch self {
+    case .saved: RulesCopy.text("已保存")
+    case .persistenceFailed: RulesCopy.text("保存失败，规则未更改")
+    case .busy: RulesCopy.text("正在更新规则…")
+    case .invalidDocument, .rejected: RulesCopy.text("无法更新规则")
+    }
+  }
+
+  var failureDetail: String? {
+    switch self {
+    case .invalidDocument(let detail): detail
+    case .rejected(let rejected): rejected.map(\.explanation).joined(separator: "\n")
+    default: nil
+    }
+  }
+
+  var nextStep: String? {
+    switch self {
+    case .persistenceFailed, .busy: "请重试规则操作。"
+    case .invalidDocument, .rejected: "请检查规则数据后再操作。"
+    default: nil
+    }
+  }
+}
+
 // MARK: - 自定义规则命令面
 
 extension ProxyRuntimeController {

ShadowsocksX-NG2/App/RulesOperationStatusView.swift

@@ -103,48 +103,3 @@ struct RulesCollectionIssuesView: View {
     }
   }
 }
-
-extension RulesCommitFeedback {
-  var summary: String {
-    guard outcome.isSuccess else { return outcome.rulesMessage }
-    let count: String
-    switch operation {
-    case .enablement(let enabled):
-      count = String.localizedStringWithFormat(
-        RulesCopy.text(enabled ? "已启用 %lld 条规则" : "已禁用 %lld 条规则"), Int64(changedCount))
-    case .add: count = RulesCopy.text("已新增规则")
-    case .edit: count = RulesCopy.text("已编辑规则")
-    case .delete:
-      count = String.localizedStringWithFormat(
-        RulesCopy.text("已删除 %lld 条自定义规则"), Int64(changedCount))
-    }
-    return count + " · " + RulesCopy.text("已保存")
-  }
-}
-
-extension CustomRuleUpdateOutcome {
-  var rulesMessage: String {
-    switch self {
-    case .saved: RulesCopy.text("已保存")
-    case .persistenceFailed: RulesCopy.text("保存失败，规则未更改")
-    case .busy: RulesCopy.text("正在更新规则…")
-    case .invalidDocument, .rejected: RulesCopy.text("无法更新规则")
-    }
-  }
-
-  var failureDetail: String? {
-    switch self {
-    case .invalidDocument(let detail): detail
-    case .rejected(let rejected): rejected.map(\.explanation).joined(separator: "\n")
-    default: nil
-    }
-  }
-
-  var nextStep: String? {
-    switch self {
-    case .persistenceFailed, .busy: "请重试规则操作。"
-    case .invalidDocument, .rejected: "请检查规则数据后再操作。"
-    default: nil
-    }
-  }
-}

ShadowsocksX-NG2/Tests/RulesPresentationTests.swift

@@ -58,6 +58,39 @@ final class RulesPresentationTests: XCTestCase {
     XCTAssertNil(workflow.selectedRelationshipRow)
   }
 
+  func testOutcomeCopyMappingCoversEveryCase() throws {
+    XCTAssertEqual(CustomRuleUpdateOutcome.saved.rulesMessage, RulesCopy.text("已保存"))
+    XCTAssertEqual(
+      CustomRuleUpdateOutcome.persistenceFailed.rulesMessage, RulesCopy.text("保存失败，规则未更改"))
+    XCTAssertEqual(
+      CustomRuleUpdateOutcome.persistenceFailed.nextStep, RulesCopy.text("请重试规则操作。"))
+    XCTAssertNil(CustomRuleUpdateOutcome.persistenceFailed.failureDetail)
+    XCTAssertEqual(CustomRuleUpdateOutcome.busy.rulesMessage, RulesCopy.text("正在更新规则…"))
+    let invalid = CustomRuleUpdateOutcome.invalidDocument(detail: "detail-1")
+    XCTAssertEqual(invalid.rulesMessage, RulesCopy.text("无法更新规则"))
+    XCTAssertEqual(invalid.failureDetail, "detail-1")
+    XCTAssertEqual(invalid.nextStep, RulesCopy.text("请检查规则数据后再操作。"))
+    let rejected = CustomRuleUpdateOutcome.rejected([
+      RejectedCustomRule(
+        rule: CustomRule(action: .direct, match: try RuleMatch(domainExact: "a.test")),
+        reason: .duplicate, explanation: "r1"),
+      RejectedCustomRule(
+        rule: CustomRule(action: .direct, match: try RuleMatch(domainExact: "b.test")),
+        reason: .duplicate, explanation: "r2"),
+    ])
+    XCTAssertEqual(rejected.failureDetail, "r1\nr2")
+    XCTAssertEqual(rejected.nextStep, RulesCopy.text("请检查规则数据后再操作。"))
+    XCTAssertNil(CustomRuleUpdateOutcome.saved.failureDetail)
+    XCTAssertNil(CustomRuleUpdateOutcome.saved.nextStep)
+    let success = RulesCommitFeedback(
+      outcome: .saved, operation: .enablement(true), changedCount: 3)
+    XCTAssertEqual(
+      success.summary,
+      RulesCopy.text("已启用 3 条规则") + " · " + RulesCopy.text("已保存"))
+    let failure = RulesCommitFeedback(outcome: .busy, operation: .delete, changedCount: 1)
+    XCTAssertEqual(failure.summary, RulesCopy.text("正在更新规则…"))
+  }
+
 }
 
 private final class ReportFixtureLoader: @unchecked Sendable {