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| 1 | +using OpenClaw.Chat; |
| 2 | +using System; |
| 3 | +using System.Collections.Generic; |
| 4 | + |
| 5 | +namespace OpenClawTray.Chat; |
| 6 | + |
| 7 | +public static class ChatUsageFormatter |
| 8 | +{ |
| 9 | + public static string? Format(ChatThread? thread) |
| 10 | + { |
| 11 | + if (thread is null) return null; |
| 12 | + |
| 13 | + var usedTokens = thread.TotalTokens; |
| 14 | + if (usedTokens <= 0) |
| 15 | + usedTokens = thread.InputTokens + thread.OutputTokens; |
| 16 | + |
| 17 | + return Format(usedTokens, thread.ContextTokens); |
| 18 | + } |
| 19 | + |
| 20 | + public static string? Format( |
| 21 | + IReadOnlyList<ChatTimelineItem>? entries, |
| 22 | + IReadOnlyDictionary<string, ChatEntryMetadata>? metadata) |
| 23 | + { |
| 24 | + if (entries is null || metadata is null) return null; |
| 25 | + |
| 26 | + for (var i = entries.Count - 1; i >= 0; i--) |
| 27 | + { |
| 28 | + var entry = entries[i]; |
| 29 | + if (entry.Kind != ChatTimelineItemKind.Assistant) |
| 30 | + continue; |
| 31 | + |
| 32 | + if (!metadata.TryGetValue(entry.Id, out var meta)) |
| 33 | + continue; |
| 34 | + |
| 35 | + var summary = Format(meta); |
| 36 | + if (!string.IsNullOrWhiteSpace(summary)) |
| 37 | + return summary; |
| 38 | + } |
| 39 | + |
| 40 | + return null; |
| 41 | + } |
| 42 | + |
| 43 | + public static string? Format(ChatEntryMetadata? metadata) |
| 44 | + => metadata is null |
| 45 | + ? null |
| 46 | + : Format(metadata.InputTokens, metadata.OutputTokens, metadata.ResponseTokens, metadata.ContextPercent, metadata.ContextTokens ?? 0); |
| 47 | + |
| 48 | + public static string? Format(int? inputTokens, int? outputTokens, int? responseTokens, int? contextPercent) |
| 49 | + => Format(inputTokens, outputTokens, responseTokens, contextPercent, 0); |
| 50 | + |
| 51 | + public static string? Format(int? inputTokens, int? outputTokens, int? responseTokens, int? contextPercent, long fallbackContextTokens) |
| 52 | + { |
| 53 | + long? usedTokens = null; |
| 54 | + if (fallbackContextTokens > 0 && contextPercent is int pct) |
| 55 | + usedTokens = (long)Math.Round(fallbackContextTokens * Math.Clamp(pct, 0, 100) / 100d, MidpointRounding.AwayFromZero); |
| 56 | + usedTokens ??= responseTokens |
| 57 | + ?? (inputTokens is int input && outputTokens is int output ? input + output : null); |
| 58 | + |
| 59 | + return usedTokens is long used |
| 60 | + ? Format(used, fallbackContextTokens, contextPercent) |
| 61 | + : null; |
| 62 | + } |
| 63 | + |
| 64 | + public static string? Format(long usedTokens, long contextTokens, int? contextPercent = null) |
| 65 | + { |
| 66 | + if (usedTokens < 0) usedTokens = 0; |
| 67 | + if (contextTokens < 0) contextTokens = 0; |
| 68 | + |
| 69 | + var percent = contextPercent; |
| 70 | + if (percent is null && contextTokens > 0) |
| 71 | + percent = (int)Math.Min(100d, (double)usedTokens / contextTokens * 100d); |
| 72 | + |
| 73 | + if (contextTokens <= 0 && usedTokens > 0 && percent is > 0) |
| 74 | + contextTokens = (long)Math.Round(usedTokens * 100d / percent.Value, MidpointRounding.AwayFromZero); |
| 75 | + |
| 76 | + if (percent is not null) |
| 77 | + percent = Math.Clamp(percent.Value, 0, 100); |
| 78 | + |
| 79 | + if (usedTokens == 0 && contextTokens == 0) |
| 80 | + return null; |
| 81 | + |
| 82 | + if (contextTokens > 0) |
| 83 | + return $"{FormatCount(usedTokens)}/{FormatCount(contextTokens)} ({percent ?? 0}%)"; |
| 84 | + |
| 85 | + return percent is int pct |
| 86 | + ? $"{FormatCount(usedTokens)} ({pct}%)" |
| 87 | + : null; |
| 88 | + } |
| 89 | + |
| 90 | + private static string FormatCount(long value) |
| 91 | + { |
| 92 | + if (value >= 1_000_000) |
| 93 | + { |
| 94 | + var millions = value / 1_000_000d; |
| 95 | + return millions % 1d == 0d |
| 96 | + ? $"{millions:0}M" |
| 97 | + : $"{millions:0.#}M"; |
| 98 | + } |
| 99 | + |
| 100 | + if (value >= 1_000) |
| 101 | + return $"{value / 1_000d:0.0}K"; |
| 102 | + |
| 103 | + return value.ToString(); |
| 104 | + } |
| 105 | +} |
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