@page "/git/{Repository}"
@inherits GitPage

<PageTitle>@Repository — git</PageTitle>

<GitBar Repository="@Repository" Reference="@(Reference ?? Info?.Head)" Tab="log"/>

<main class="git-main">
    @if (Info is not { } info)
    {
        <section class="block">
            <p class="empty">No repository called @Repository.</p>
        </section>
    }
    else
    {
        <section class="block">
            <h2 class="block-head">
                <span>@info.DisplayName</span>
                @if (info.Head is { } head)
                {
                    <span class="block-note">on @head</span>
                }
            </h2>

            <div class="block-body">
                <dl class="pairs">
                    @if (info.Description is { } description)
                    {
                        <dt>about</dt>
                        <dd>@description</dd>
                    }
                    @if (info.Owner is { } owner)
                    {
                        <dt>owner</dt>
                        <dd>@owner</dd>
                    }
                    @if (Service.CloneUrl(info.Name) is { } clone)
                    {
                        <dt>clone</dt>
                        <dd class="copyable">@clone</dd>
                    }
                    @if (Refs is { } refs)
                    {
                        <dt>refs</dt>
                        <dd>
                            <a href="@RefsLink()">@Branches(refs), @Tags(refs)</a>
                        </dd>
                    }
                </dl>
            </div>
        </section>

        @if (info.Tip is null)
        {
            <section class="block">
                <p class="empty">Nothing committed yet.</p>
            </section>
        }
        else
        {
            <section class="block">
                <h2 class="block-head">
                    <span>recent commits</span>
                    <span class="block-note"><a href="@LogLink(info.Head)">full log</a></span>
                </h2>

                <div class="scroll">
                    <table>
                        <tbody>
                        @foreach (var commit in Recent)
                        {
                            <tr>
                                <td class="dim" title="@Exact(commit.Author.When)">@Age(commit.Author.When)</td>
                                <td class="sha dim"><a href="@CommitLink(commit.Sha)">@commit.ShortSha</a></td>
                                <td class="wide">
                                    <a href="@CommitLink(commit.Sha)" class="subject">@commit.Summary</a>
                                    @foreach (var name in commit.Refs)
                                    {
                                        <span class="ref @(name == info.Head ? "head" : null)">@name</span>
                                    }
                                </td>
                                <td class="dim when-wide">@commit.Author.Name</td>
                            </tr>
                        }
                        </tbody>
                    </table>
                </div>
            </section>
        }
    }
</main>

@code {
    private const int Recently = 15;

    private GitRepoSummary? Info { get; set; }

    private GitRefsView? Refs { get; set; }

    private IReadOnlyList<GitCommitInfo> Recent { get; set; } = [];

    protected override void OnParametersSet()
    {
        Info = Service.GetRepository(Repository);

        if (Info is null)
        {
            NotFound();
            return;
        }

        Refs = Service.GetRefs(Repository);
        Recent = Service.GetLog(Repository, Reference, null, 0, Recently)?.Commits ?? [];
    }

    private static string Branches(GitRefsView refs) =>
        refs.Branches.Count == 1 ? "1 branch" : $"{refs.Branches.Count} branches";

    private static string Tags(GitRefsView refs) =>
        refs.Tags.Count == 1 ? "1 tag" : $"{refs.Tags.Count} tags";
}