gramps
41b0cd6e98
ScoreboardTiles decides which of the eight facts appear and shapes their text (money uses the
session's dominant currency and flags a second one rather than converting; watch hours carry
'as of {date}' because Analytics is a daily aggregate). Tiles are OPT-IN, so 'None' really means the
layer draws nothing, and 'Default' is the six session facts.
ScoreboardPresenter owns the raster cache: ScoreboardRecorder.Changed fires only on a visible change,
so the strip rebuilds only then — a per-tick raster would be the compositor's most expensive layer
for identical pixels.
Guard: ScoreboardPresenterTests asserts the cache identity (same instance when nothing moved, a new
frame when a value moved, reuse when a recipient-side gift event arrives) and that an empty selection
returns no frame at all.
88 lines
3.8 KiB
C#
88 lines
3.8 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Globalization;
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namespace ytLive.Models;
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/// <summary>Which of the eight facts the creator put on screen, and how each renders.
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///
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/// <para>Every tile is optional because the strip is an ego wall — the creator chooses the
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/// billboard. Goal tiles carry their targets here so the rendering stays a pure function of the
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/// state plus this selection.</para></summary>
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public sealed class ScoreboardTiles
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{
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/// <summary>Nothing enabled — the layer draws nothing.</summary>
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public static ScoreboardTiles None => new();
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/// <summary>The selection a new layer starts with: the six session facts, no channel polls
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/// (those need the Analytics scope).</summary>
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public static ScoreboardTiles Default => new()
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{
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SuperChats = true, NewMembers = true, Milestones = true,
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LastMember = true, LastSuperChat = true, LastGift = true,
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};
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public bool Subscribers { get; set; }
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public bool WatchHours { get; set; }
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public bool SuperChats { get; set; }
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public bool NewMembers { get; set; }
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public bool Milestones { get; set; }
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public bool LastMember { get; set; }
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public bool LastSuperChat { get; set; }
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public bool LastGift { get; set; }
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/// <summary>Goal targets for the two polled tiles; 0 means "no goal, show the raw number".</summary>
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public int SubscriberGoal { get; set; }
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public int WatchHourGoal { get; set; }
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/// <summary>Channel state fed by the polled side (subscribers, watch hours). Kept here so the
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/// strip is built from ONE source of truth: tallies + channel values + this selection.</summary>
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public int SubscriberCount { get; set; }
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public int WatchHoursValue { get; set; }
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/// <summary>Cache key: the selection alone. Values are folded in by the presenter's fingerprint,
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/// so this only needs to change when the ENABLED SET changes.</summary>
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public string CacheKey =>
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$"{Subscribers}{WatchHours}{SuperChats}{NewMembers}{Milestones}{LastMember}{LastSuperChat}{LastGift}" +
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$"{SubscriberGoal}{WatchHourGoal}";
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/// <summary>The strip's text, in reading order. Empty strings are dropped by the renderer.</summary>
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public IReadOnlyList<string> Build(ScoreboardState state)
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{
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var tiles = new List<string>(8);
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if (Subscribers)
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tiles.Add(SubscriberGoal > 0
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? $"Subs {SubscriberCount:N0}/{SubscriberGoal:N0}"
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: $"Subs {SubscriberCount:N0}");
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if (WatchHours)
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// Analytics is a DAILY aggregate, so the tile must not imply live data.
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tiles.Add(WatchHourGoal > 0
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? $"Hours {WatchHoursValue:N0}/{WatchHourGoal:N0} (as of {DateTime.Now:MMM d})"
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: $"Hours {WatchHoursValue:N0} (as of {DateTime.Now:MMM d})");
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if (SuperChats && state.SessionTotal.Total > 0)
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tiles.Add(state.HasMixedCurrencies
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? $"SC {state.SessionTotal.Currency} {state.SessionTotal.Total:0.00} +{state.MoneyByCurrency.Count - 1}"
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: $"SC {state.SessionTotal.Currency} {state.SessionTotal.Total:0.00}");
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if (NewMembers && state.NewMembers > 0)
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tiles.Add($"Members +{state.NewMembers}");
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if (Milestones && state.MilestoneCount > 0)
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tiles.Add($"Milestones {state.MilestoneCount}");
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if (LastMember && !string.IsNullOrWhiteSpace(state.LastMemberName))
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tiles.Add($"Last member {state.LastMemberName}");
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if (LastSuperChat && !string.IsNullOrWhiteSpace(state.LastSuperChatDisplay))
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tiles.Add($"Last SC {state.LastSuperChatDisplay}");
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if (LastGift && !string.IsNullOrWhiteSpace(state.LastGifterName))
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tiles.Add($"Last gift {state.LastGifterName} ×{Math.Max(1, state.LastGiftCount)}");
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return tiles;
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}
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}
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