Add timestamp on spectral density page

[dthaler]

Add timestamp on spectral density page
Change label of "Last Sample" (fixes #246)

Summary by CodeRabbit

• New Features

  • Added ability to retrieve the last modified date of resources.
  • Enhanced Spectral Density page to display the last modified timestamp of audio data.

• Bug Fixes

  • Updated dataset label for clarity in the Spectral Density chart.

These changes improve resource tracking and provide more informative metadata for users regarding audio sample timestamps.

[coderabbitai]

Walkthrough

This pull request introduces a new method GetLastModifiedAsync in the Fetcher class to retrieve the last modified date of a resource via HTTP HEAD request. The changes extend to the SpectralDensityModel class, which now includes a LastModified property to display the timestamp of the audio sample. The SpectralDensity.cshtml page is updated to show this last modified date and modify the dataset label from 'Last Sample' to 'Audio Sample'.

Changes

File	Change Summary
OrcanodeMonitor/Core/Fetcher.cs	Added GetLastModifiedAsync method to retrieve last modified date of a resource
OrcanodeMonitor/Pages/SpectralDensity.cshtml	Updated to display last modified date and change dataset label
OrcanodeMonitor/Pages/SpectralDensity.cshtml.cs	Added LastModified property and logic to set its value

Assessment against linked issues

Objective	Addressed	Explanation
Change "Last Sample" label [#246]	✅

Possibly related PRs

• Show max silence and min signal lines #238: Introduces audio data magnitude properties.
• Tweak labels on spectral density page #243: Modifies dataset labels.
• Add Play button to spectral density page #244: Adds audio playback functionality.

Poem

🐰 Hop, hop, through code so bright,
Last modified dates now shine with might!
From Fetcher's quest to timestamp's gleam,
Our audio sample tells its dream!
A rabbit's code, precise and clean! 🎵

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📥 Commits

Reviewing files that changed from the base of the PR and between 978d892 and 645e88c.

📒 Files selected for processing (1)

• OrcanodeMonitor/Core/Fetcher.cs (1 hunks)

🚧 Files skipped from review as they are similar to previous changes (1)

• OrcanodeMonitor/Core/Fetcher.cs

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[coderabbitai]

Actionable comments posted: 0

🧹 Nitpick comments (1)

OrcanodeMonitor/Core/Fetcher.cs (1)

944-951: LGTM! Efficient implementation using HEAD request.

The method efficiently retrieves the last modified timestamp using a HEAD request instead of downloading the entire resource. Good use of 'using' statements for proper resource disposal.

Consider adding XML documentation comments for better API documentation:

+        /// <summary>
+        /// Retrieves the last modified date of a resource via HTTP HEAD request.
+        /// </summary>
+        /// <param name="uri">The URI of the resource to check.</param>
+        /// <returns>The last modified date in UTC, or null if not available.</returns>
         public async static Task<DateTime?> GetLastModifiedAsync(Uri uri)

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between b2735f4 and 978d892.

📒 Files selected for processing (3)

• OrcanodeMonitor/Core/Fetcher.cs (1 hunks)
• OrcanodeMonitor/Pages/SpectralDensity.cshtml (2 hunks)
• OrcanodeMonitor/Pages/SpectralDensity.cshtml.cs (2 hunks)

⏰ Context from checks skipped due to timeout of 90000ms (3)

• GitHub Check: build_windows (Release)
• GitHub Check: build_windows (Debug)
• GitHub Check: Analyze (csharp)

🔇 Additional comments (3)

OrcanodeMonitor/Pages/SpectralDensity.cshtml (2)

10-10: LGTM! Clear presentation of the timestamp.

The timestamp display is well-placed and uses a simple, clear format.

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25-25: LGTM! More descriptive dataset label.

The change from 'Last Sample' to 'Audio Sample' provides a clearer description of the data being displayed.

OrcanodeMonitor/Pages/SpectralDensity.cshtml.cs (1)

34-34: LGTM! Well-encapsulated property.

The LastModified property is correctly implemented with a private setter for encapsulation.