using Elternbeirat.Contracts;
using Elternbeirat.Web.Shared;
using Microsoft.AspNetCore.Components;

namespace Elternbeirat.Web.Features.Posts;

/// <summary>
///     Renders one post as a card linking to the post, with date, title and teaser.
/// </summary>
/// <remarks>
///     Shared by the posts page and the home-page posts embed, so both show posts the
///     same way. The teaser comes from the body (<see cref="Markdown.Teaser"/>): posts
///     have no summary field of their own.
/// </remarks>
/// <seealso cref="PostDate"/>
public partial class PostCard
{
    /// <summary>
    ///     The post to show.
    /// </summary>
    [Parameter]
    [EditorRequired]
    public Post Value { get; set; } = null!;

    /// <summary>
    ///     <see langword="true"/> for the large card that opens the posts page (the
    ///     newest post); <see langword="false"/> for a regular card.
    /// </summary>
    [Parameter]
    public bool Featured { get; set; }

    /// <summary>
    ///     The card's classes; the featured card adds its modifier.
    /// </summary>
    private string CssClass => Featured ? "post-card post-card-featured" : "post-card";

    /// <summary>
    ///     The address of the post.
    /// </summary>
    private string Href => $"/posts/{Value.Slug}";

    /// <summary>
    ///     The teaser text; empty if the body has no paragraph text.
    /// </summary>
    private string Teaser => Markdown.Teaser(Value.Body);
}