Build .noSuchItem and .filenameCollision errors correctly

[claucambra]

No description provided.

[Copilot]

Pull Request Overview

This PR revises error‐handling throughout the codebase so that .noSuchItem and .filenameCollision errors are built consistently via new helper methods (primarily using NSError.fileProviderErrorForNonExistentItem and error.fileProviderError(…)). Key changes include:

• Replacing direct NSFileProviderError constructions with calls to NSError helper functions.
• Updating the error conversion paths in modify, fetch, delete, create, and enumeration workflows.
• Adjusting inline comments and logging to align with the new error‐handling approach.

Reviewed Changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
Sources/NextcloudFileProviderKit/Utilities/ThumbnailFetching.swift	Update error creation for thumbnail download failures.
Sources/NextcloudFileProviderKit/Item/Item+Modify.swift	Replace NSFileProviderError(.noSuchItem) with NSError conversions.
Sources/NextcloudFileProviderKit/Item/Item+Fetch.swift	Update error handling for failed fetch operations.
Sources/NextcloudFileProviderKit/Item/Item+Delete*.swift	Adjust error handling in delete and lock file deletion operations.
Sources/NextcloudFileProviderKit/Item/Item+Create*.swift	Use new collision and non-existent item error helper methods.
Sources/NextcloudFileProviderKit/Extensions/NKError+Extensions.swift	Enhance error conversion methods for collision errors.
Sources/NextcloudFileProviderKit/Enumeration/Enumerator.swift	Update enumeration error handling to use new NSError conversions.
Sources/NextcloudFileProviderKit/Database/FilesDatabaseManager.swift	Add account property for improved error context.
README.md	Update sample error responses to reflect changes in error conversion.

Comments suppressed due to low confidence (2)

Sources/NextcloudFileProviderKit/Item/Item+Modify.swift:80

• [nitpick] Consider adding a brief inline comment explaining why the new error conversion is preferred over NSFileProviderError(.noSuchItem) here to aid future maintainability and clarity.

return (nil, NSError.fileProviderErrorForNonExistentItem(withIdentifier: self.itemIdentifier))

Sources/NextcloudFileProviderKit/Extensions/NKError+Extensions.swift:82

• [nitpick] Review that the fallback to NSFileProviderError(.filenameCollision) in the collision handling method meets all expected error condition scenarios; ensuring that the error messages and codes remain consistent across different parts of the app.

func fileProviderError( handlingCollisionAgainstItemInRemotePath problemRemotePath: String, dbManager: FilesDatabaseManager, remoteInterface: RemoteInterface ) -> Error? {

[codecov]

Codecov Report

Attention: Patch coverage is 4.09091% with 211 lines in your changes missing coverage. Please review.

Project coverage is 81.02%. Comparing base (41c1a7f) to head (7b801bd).
Report is 28 commits behind head on main.

Files with missing lines	Patch %	Lines
...es/NextcloudFileProviderKit/Item/Item+Create.swift	4.76%	60 Missing ⚠️
...es/NextcloudFileProviderKit/Item/Item+Modify.swift	0.00%	59 Missing ⚠️
...ces/NextcloudFileProviderKit/Item/Item+Fetch.swift	3.22%	30 Missing ⚠️
...tcloudFileProviderKit/Enumeration/Enumerator.swift	7.14%	26 Missing ⚠️
...ileProviderKit/Extensions/NKError+Extensions.swift	0.00%	24 Missing ⚠️
...dFileProviderKit/Utilities/ThumbnailFetching.swift	0.00%	5 Missing ⚠️
...es/NextcloudFileProviderKit/Item/Item+Delete.swift	0.00%	4 Missing ⚠️
...loudFileProviderKit/Item/Item+DeleteLockFile.swift	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #70      +/-   ##
==========================================
- Coverage   81.60%   81.02%   -0.58%     
==========================================
  Files          62       62              
  Lines       12882    12979      +97     
==========================================
+ Hits        10512    10516       +4     
- Misses       2370     2463      +93     

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