@using Sandbox.UI
@inherits Panel

<style>
    PlayerKillFeed {
        position: absolute;
        top: 80px;
        right: 100px;
        z-index: 50;
        flex-direction: column-reverse;
        width: 500px;
        align-items: flex-end;

        .entries {
            flex-direction: column-reverse;
            align-items: flex-end;
        }
    }

    PlayerKillFeedEntry {
        flex-direction: row;
        align-items: center;
        justify-content: flex-end;
        background-color: rgba(78, 75, 66, 0.5);
        border-left: 5px solid rgba(0, 0, 0, 0.2);
        border-right: 5px solid rgba(0, 0, 0, 0.2);
        margin-bottom: 5px;
        color: white;
        transition: all 0.2s ease-out;
        opacity: 1;
        flex-shrink: 0;
        flex-grow: 0;
        padding: 12px;
        height: 45px;
        font-family: "AzeretMono-Medium";
        font-size: 24px;

        &:intro {
            transform: scale(2);
            padding-top: 0;
            padding-bottom: 0;
            margin-bottom: 0;
            height: 0;
            opacity: 0;
        }

        &:outro {
            top: -20px;
            opacity: 0;
            transform: scale(1.1);
            transition: all 0.2s ease-in;
        }

        .killer { padding: 0 12px; }
        .victim { padding: 0 12px; }
        .method { opacity: 0.3; }

        &.faded { opacity: 0; }
    }
</style>

<root>
    <div @ref="_entries" class="entries">
        <div style="flex-grow: 1;"></div>
    </div>
</root>

@code
{
    private Panel _entries;

    public static PlayerKillFeed Current { get; private set; }

    public PlayerKillFeed() => Current = this;

    protected override void OnAfterTreeRender( bool firstTime )
    {
        base.OnAfterTreeRender( firstTime );
        if ( !firstTime ) return;
        if ( _entries != null ) _entries.PreferScrollToBottom = true;
        KillFeedEvent.OnKill += AddEntry;
    }

    public override void OnDeleted()
    {
        KillFeedEvent.OnKill -= AddEntry;
        if ( Current == this ) Current = null;
    }

    public void AddEntry( string killer, string victim, string method )
    {
        _entries?.AddChild( new PlayerKillFeedEntry( killer, victim, method ) );
    }
}