Feat/improve shif layouts

[pepordev]

fixes #1352

Summary by CodeRabbit

• Bug Fixes
  • Improved data format handling to ensure backward compatibility with legacy configuration data, enabling smooth upgrades from previous versions.

_{✏️ Tip: You can customize this high-level summary in your review settings.}

[coderabbitai]

Walkthrough

Added a JSON converter for the ShiftSlot field to support migration from integer-based to flag-based representation during deserialization. The converter handles null values, string enum inputs, and legacy integer values with explicit mappings, while serializing all outputs as string enum representations.

Changes

Cohort / File(s)	Summary
ShiftSlot JSON serialization HandheldCompanion/Actions/IActions.cs, HandheldCompanion/Converters/ShiftSlotConverter.cs	Added JsonConverter attribute to ShiftSlot field and created new ShiftSlotConverter class implementing deserialization logic for integer-to-flag migration (e.g., 3→ShiftC, 4→ShiftD, 5→Any) with string enum and null fallback support

Estimated Code Review Effort

🎯 2 (Simple) | ⏱️ ~15 minutes

• Key areas for attention:
  • Verify integer-to-flag mappings in ReadJson are semantically correct (especially 3→ShiftC, 4→ShiftD, 5→Any)
  • Confirm null handling defaults to Any as intended
  • Validate that string enum deserialization properly handles format variations (e.g., "ShiftA" vs other casing)

Possibly related PRs

• feat: correct shift logic and add support for shift combiantions #1352: Main PR introducing the shift logic redesign and flag-based ShiftSlot representation that this converter supports for backward compatibility

Poem

🐰 A rabbit hops through integer seas,
Converting flags with such ease,
Old shifts mapped to new with care,
JSON strings dance in the air—
Migration magic, clean and fair! ✨

Pre-merge checks and finishing touches

❌ Failed checks (1 warning, 2 inconclusive)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	You can run @coderabbitai generate docstrings to improve docstring coverage.
Title check	❓ Inconclusive	The title contains a typo ('shif' instead of 'shift') and is vague about the actual changes, which involve JSON converter implementation and field annotation.	Correct the typo and make the title more specific about the core change, e.g., 'Add ShiftSlotConverter for JSON serialization with backward compatibility.'
Linked Issues check	❓ Inconclusive	The PR implements JSON serialization infrastructure (ShiftSlotConverter) with migration logic, which supports the shift logic redesign objectives but lacks UI changes and shift validation logic mentioned in issue #1352.	Clarify whether this PR is a prerequisite for UI/validation changes or if those changes should be included. The converter alone is incomplete relative to the full issue scope.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Out of Scope Changes check	✅ Passed	All changes are directly related to supporting the shift system redesign through JSON serialization and backward compatibility handling, with no unrelated modifications detected.

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment

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[coderabbitai]

Actionable comments posted: 1

📜 Review details

Configuration used: defaults

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between fddba80 and 51dd2d2.

📒 Files selected for processing (2)

• HandheldCompanion/Actions/IActions.cs (2 hunks)
• HandheldCompanion/Converters/ShiftSlotConverter.cs (1 hunks)

🧰 Additional context used

🧠 Learnings (1)

📚 Learning: 2024-07-27T07:08:12.731Z

Learnt from: romracer
Repo: Valkirie/HandheldCompanion PR: 1012
File: HandheldCompanion/Devices/MSI/ClawA1M.cs:0-0
Timestamp: 2024-07-27T07:08:12.731Z
Learning: The `ClawA1M` class in the `HandheldCompanion` project has been refactored to improve readability and maintainability. Changes include the removal of `scope` as a private field, simplification by removing thread logic, encapsulation of WMI event monitoring setup and teardown in separate methods with proper exception handling, and marking `specialKeyWatcher` as nullable.

Applied to files:

• HandheldCompanion/Actions/IActions.cs

🧬 Code graph analysis (1)

HandheldCompanion/Actions/IActions.cs (1)

HandheldCompanion/Converters/ShiftSlotConverter.cs (1)

• ShiftSlotConverter (13-45)

⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (1)

• GitHub Check: Build and Release

🔇 Additional comments (4)

HandheldCompanion/Converters/ShiftSlotConverter.cs (2)

40-44: LGTM!

Writing as a string representation ensures forward compatibility and clearly distinguishes the new format from legacy integer values. The ToString() method on a flags enum will correctly produce comma-separated values for combinations.

---

15-27: ShiftSlot enum is correctly configured for flag combinations.

The ShiftSlot enum in HandheldCompanion/Actions/ShiftActions.cs is properly decorated with the [Flags] attribute and uses power-of-2 values (via bit shift notation: 1 << 0, 1 << 1, etc.). The Enum.TryParse call in the ReadJson method will correctly handle flag combinations like "ShiftA, ShiftB".

HandheldCompanion/Actions/IActions.cs (2)

139-140: Verify default shift behavior aligns with PR objectives.

The PR objectives state: "Change default shift behavior from 'Disabled' to 'Shift A.'" However, the field is initialized to ShiftSlot.Any, which according to the IsShiftAllowed logic means "always enabled regardless of shift state."

Please confirm whether:

• ShiftSlot.Any is the intended default (always enabled), or
• The default should be ShiftSlot.ShiftA to align with the stated objective.

---

415-426: LGTM! Exact matching logic correctly implemented.

The shift validation now uses exact matching (current == required) instead of permissive overlap checks, which aligns with the PR objectives. The special handling for Any (always enabled) and None (only when no shifts pressed) is appropriate.

[coderabbitai]

🛠️ Refactor suggestion | 🟠 Major

Add exception handling for Convert.ToInt32.

Convert.ToInt32(reader.Value) can throw FormatException, InvalidCastException, or OverflowException if the JSON contains unexpected values. Consider wrapping this in a try-catch block and returning a sensible default (e.g., ShiftSlot.Any) on failure to prevent deserialization crashes.

🔎 Proposed fix with exception handling

 // Old format: integer - needs migration
-int rawValue = Convert.ToInt32(reader.Value);
-return rawValue switch
+try
 {
-    3 => ShiftSlot.ShiftC,  // Old ShiftC (3) -> New ShiftC (4)
-    4 => ShiftSlot.ShiftD,  // Old ShiftD (4) -> New ShiftD (8)
-    5 => ShiftSlot.Any,     // Old Any (5) -> New Any (128)
-    _ => (ShiftSlot)rawValue // 0, 1, 2 unchanged; higher values are already new format
-};
+    int rawValue = Convert.ToInt32(reader.Value);
+    return rawValue switch
+    {
+        3 => ShiftSlot.ShiftC,  // Old ShiftC (3) -> New ShiftC (4)
+        4 => ShiftSlot.ShiftD,  // Old ShiftD (4) -> New ShiftD (8)
+        5 => ShiftSlot.Any,     // Old Any (5) -> New Any (128)
+        _ => (ShiftSlot)rawValue // 0, 1, 2 unchanged; higher values are already new format
+    };
+}
+catch (Exception)
+{
+    return ShiftSlot.Any; // Safe default on conversion failure
+}

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change

	// Old format: integer - needs migration
	int rawValue = Convert.ToInt32(reader.Value);
	return rawValue switch
	{
	3 => ShiftSlot.ShiftC, // Old ShiftC (3) -> New ShiftC (4)
	4 => ShiftSlot.ShiftD, // Old ShiftD (4) -> New ShiftD (8)
	5 => ShiftSlot.Any, // Old Any (5) -> New Any (128)
	_ => (ShiftSlot)rawValue // 0, 1, 2 unchanged; higher values are already new format
	};
	}
	// Old format: integer - needs migration
	try
	{
	int rawValue = Convert.ToInt32(reader.Value);
	return rawValue switch
	{
	3 => ShiftSlot.ShiftC, // Old ShiftC (3) -> New ShiftC (4)
	4 => ShiftSlot.ShiftD, // Old ShiftD (4) -> New ShiftD (8)
	5 => ShiftSlot.Any, // Old Any (5) -> New Any (128)
	_ => (ShiftSlot)rawValue // 0, 1, 2 unchanged; higher values are already new format
	};
	}
	catch (Exception)
	{
	return ShiftSlot.Any; // Safe default on conversion failure
	}
	}

🤖 Prompt for AI Agents

In HandheldCompanion/Converters/ShiftSlotConverter.cs around lines 29 to 38, the
direct call to Convert.ToInt32(reader.Value) can throw FormatException,
InvalidCastException, or OverflowException when encountering unexpected JSON;
wrap the conversion and switch in a try-catch that catches those specific
exceptions (or Exception as a fallback) and return a sensible default (e.g.,
ShiftSlot.Any) on failure to avoid deserialization crashes, ensuring the method
continues to map known legacy integer values to the new enum in the try block
and returns ShiftSlot.Any in the catch.

[Valkirie]

Good job