/// <summary>
/// Loads the view model from octokit models.
/// </summary>
/// <param name="pullRequest">The pull request model.</param>
/// <param name="files">The pull request's changed files.</param>
public async Task Load(IPullRequestModel pullRequest)
{
Model = pullRequest;
SourceBranchDisplayName = GetBranchDisplayName(pullRequest.Head?.Label);
TargetBranchDisplayName = GetBranchDisplayName(pullRequest.Base.Label);
Body = !string.IsNullOrWhiteSpace(pullRequest.Body) ? pullRequest.Body : "*No description provided.*";
ChangedFilesTree.Clear();
ChangedFilesList.Clear();
// WPF doesn't support AddRange here so iterate through the changes.
foreach (var change in CreateChangedFilesList(pullRequest.ChangedFiles))
{
ChangedFilesList.Add(change);
}
foreach (var change in CreateChangedFilesTree(ChangedFilesList).Children)
{
ChangedFilesTree.Add(change);
}
var localBranches = await pullRequestsService.GetLocalBranches(repository, pullRequest).ToList();
if (localBranches.Contains(repository.CurrentBranch))
{
var divergence = await pullRequestsService.CalculateHistoryDivergence(repository, Model.Number);
if (divergence.BehindBy == null)
{
CheckoutMode = CheckoutMode.InvalidState;
}
else if (divergence.AheadBy > 0)
{
CheckoutMode = pullRequestsService.IsPullRequestFromFork(repository, pullRequest) ?
CheckoutMode.InvalidState : CheckoutMode.Push;
}
else if (divergence.BehindBy == 0)
{
CheckoutMode = CheckoutMode.UpToDate;
}
else
{
CheckoutMode = CheckoutMode.NeedsPull;
CommitsBehind = divergence.BehindBy.Value;
}
}
else if (localBranches.Count > 0)
{
CheckoutMode = CheckoutMode.Switch;
}
else
{
CheckoutMode = CheckoutMode.Fetch;
}
var clean = await pullRequestsService.IsCleanForCheckout(repository);
CheckoutDisabledMessage = (!clean && CheckoutMode != CheckoutMode.UpToDate && CheckoutMode != CheckoutMode.Push) ?
$"Cannot {GetCheckoutModeDescription(CheckoutMode)} as your working directory has uncommitted changes." :
null;
IsBusy = false;
}