PluralKit/PluralKit.Bot/Commands/SystemList.cs

73 lines
2.7 KiB
C#

using System.Linq;
using System.Text;
using System.Threading.Tasks;
using NodaTime;
using PluralKit.Core;
namespace PluralKit.Bot
{
public class SystemList
{
private readonly IDatabase _db;
public SystemList(IDatabase db)
{
_db = db;
}
public async Task MemberList(Context ctx, PKSystem target)
{
if (target == null) throw Errors.NoSystemError;
ctx.CheckSystemPrivacy(target, target.MemberListPrivacy);
// Must match full before calling the other flag parsers to make sure we consume the token before trying to match search terms, etc
var isFull = ctx.Match("f", "full", "big", "details", "long") || ctx.MatchFlag("f", "full");
var opts = GetOptions(ctx, target);
var renderer = GetRendererFor(ctx, isFull, opts);
var members = (await _db.Execute(c => opts.Execute(c, target, ctx.LookupContextFor(target)))).ToList();
await ctx.Paginate(
members.ToAsyncEnumerable(),
members.Count,
renderer.MembersPerPage,
GetEmbedTitle(target, opts),
(eb, ms) =>
{
eb.WithFooter($"{opts.CreateFilterString()}. {members.Count} results.");
renderer.RenderPage(eb, ctx.System?.Zone ?? DateTimeZone.Utc, ms, ctx.LookupContextFor(target));
return Task.CompletedTask;
});
}
private string GetEmbedTitle(PKSystem target, SortFilterOptions opts)
{
var title = new StringBuilder("Members of ");
if (target.Name != null) title.Append($"{target.Name} (`{target.Hid}`)");
else title.Append($"`{target.Hid}`");
if (opts.Filter != null) title.Append($" matching **{opts.Filter}**");
return title.ToString();
}
private SortFilterOptions GetOptions(Context ctx, PKSystem target)
{
var opts = SortFilterOptions.FromFlags(ctx);
opts.Filter = ctx.RemainderOrNull();
// If we're *explicitly* trying to access non-public members of another system, error
if (opts.PrivacyFilter != PrivacyFilter.PublicOnly && ctx.LookupContextFor(target) != LookupContext.ByOwner)
throw new PKError("You cannot look up private members of another system.");
return opts;
}
private IListRenderer GetRendererFor(Context ctx, bool isLongList, SortFilterOptions opts)
{
if (isLongList)
return new LongRenderer(LongRenderer.MemberFields.FromFlags(ctx, opts));
return new ShortRenderer();
}
}
}