gramps
1a6a549e17
595 green, 0 warnings. Completes TASK 55 (slice 1, log rotation, shipped 2026-10-22).
- **`AlertClipCleanup`**: the default alert clip is materialised into `%TEMP%` for ffmpeg to read, and
nothing ever deleted it — one orphan per profile that ever played an alert. Now: delete this session's
file in `Shutdown`, and sweep `ytLive-alert-*.mp4` at startup for anything a crash left behind. Only
the prefix we own is touched; a directory is never deleted.
- **`DiskSpaceGuard`**: a recording that dies of a full disk is a trust breach, so the numbers are a
pure policy — refuse to start under **1 GB** (toast; the stream still starts, recording does not),
warn under **5 GB** at start ("about eighty minutes" at 8 Mbps ≈ 3.6 GB/h), and one mid-show warning
under **2 GB** — the last useful moment before the encoder fails for a reason it won't explain.
Unreadable drives (a USB stick that just left) return null and never block a running recording.
Tests are policy-level on purpose: filling a real drive is not a test. `DiskHygieneTests` proves the
sweep only removes our own files and that the thresholds behave at both ends.
61 lines
1.9 KiB
C#
61 lines
1.9 KiB
C#
using System;
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using System.IO;
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namespace ytLive.Services;
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/// <summary>
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/// TASK 55·2: the default alert clip is materialised into <c>%TEMP%</c> so ffmpeg can read it as a file.
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/// Nothing used to delete it, so every profile that ever played an alert left an orphan behind.
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///
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/// <para>Two touches, deliberately simple: delete this session's file on close, and sweep anything the
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/// prefix matches at startup (a crash leaves the same debris a clean exit does not). Only files this app
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/// created are touched — the prefix is the contract, and the sweep never deletes a directory.</para>
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/// </summary>
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public static class AlertClipCleanup
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{
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public const string Prefix = "ytLive-alert-";
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/// <summary>Deletes stale alert clips left in <paramref name="directory"/>. Returns how many went.
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/// Missing directory is not an error.</summary>
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public static int Sweep(string directory)
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{
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try
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{
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if (!Directory.Exists(directory)) return 0;
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var removed = 0;
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foreach (var path in Directory.EnumerateFiles(directory, Prefix + "*.mp4"))
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{
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if (TryDelete(path)) removed++;
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}
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return removed;
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}
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catch (Exception ex)
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{
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Helpers.AppLog.Write(ex, "Alert clip sweep failed");
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return 0;
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}
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}
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/// <summary>Deletes one clip if it exists. Safe on null/blank and on a locked file.</summary>
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public static bool Delete(string? path)
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{
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if (string.IsNullOrWhiteSpace(path)) return false;
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return TryDelete(path);
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}
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private static bool TryDelete(string path)
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{
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try
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{
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if (!File.Exists(path)) return false;
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File.Delete(path);
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return true;
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}
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catch (Exception ex)
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{
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Helpers.AppLog.Write(ex, $"Alert clip delete failed: {path}");
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return false;
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}
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}
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}
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