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Schedule.cs
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Schedule.cs
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using System;
using System.Linq;
using Common;
namespace CompressImagesFunction
{
public class Schedule
{
/// <summary>
/// Using the repo and the repoConfiguration determine whether
/// the schedule permits an optimization at this time.
/// </summary>
/// <param name="repoConfiguration">The configuration for the repository.</param>
/// <param name="repo">The repository.</param>
/// <returns>True when the images can be optimized.</returns>
public static bool ShouldOptimizeImages(RepoConfiguration repoConfiguration, LibGit2Sharp.IRepository repo)
{
if (string.IsNullOrEmpty(repoConfiguration.Schedule))
{
// no schedule specified - let's optimize those images
return true;
}
// determine backofftime from keywords
TimeSpan backofftime;
switch (repoConfiguration.Schedule)
{
case KnownScheduleSettings.Daily:
backofftime = TimeSpan.FromDays(1);
break;
case KnownScheduleSettings.Weekly:
backofftime = TimeSpan.FromDays(7);
break;
case KnownScheduleSettings.Monthly:
backofftime = TimeSpan.FromDays(30);
break;
default:
backofftime = TimeSpan.Zero;
break;
}
// find the last time imgbot committed here
var imgbotCommit = repo.Commits.FirstOrDefault(x => x.Author.Email == KnownGitHubs.ImgBotEmail);
if (imgbotCommit == null)
{
// no imgbot commit in history - let's optimize those images
return true;
}
if (DateTimeOffset.Now - imgbotCommit.Author.When > backofftime)
{
// Now minus the last imgbot commit is greater than the backoff time - let's optimize those images
return true;
}
return false;
}
}
}