Add all-time usage statistics tab

Extends the existing Stats sheet (⌘⇧S) with a Session/All-Time segmented picker. All-Time aggregates tokens, cost, and message counts across every saved conversation, broken down by model and by conversation, using the modelId already stored per message — no schema change needed.
2026-07-28 12:35:45 +02:00
parent 71e8a49d77
commit 0642f3746f
4 changed files with 489 additions and 71 deletions
@@ -0,0 +1,95 @@
+//
+//  UsageStats.swift
+//  oAI
+//
+//  All-time usage statistics (aggregated from the messages table)
+//
+// SPDX-License-Identifier: PolyForm-Noncommercial-1.0.0
+// Copyright (C) 2026 Rune Olsen
+//
+// This file is part of oAI.
+//
+// oAI is licensed under the PolyForm Noncommercial License 1.0.0.
+// You may use, study, modify, and share it for any noncommercial
+// purpose. Commercial use — including selling oAI or any part of
+// it, standalone or bundled into another product or service —
+// requires a separate commercial license from the copyright holder.
+//
+// See the LICENSE file or
+// <https://polyformproject.org/licenses/noncommercial/1.0.0> for
+// the full license text. For commercial licensing, contact Rune
+// Olsen via <https://oai.pm>.
+
+
+import Foundation
+
+struct UsageStats: Sendable {
+    var totalMessages: Int = 0
+    var totalTokens: Int = 0
+    var totalCost: Double = 0.0
+    var hasCostData: Bool = false
+    var firstMessageDate: Date?
+    var lastMessageDate: Date?
+
+    var totalTokensDisplay: String {
+        if totalTokens >= 1_000_000 {
+            return String(format: "%.1fM", Double(totalTokens) / 1_000_000)
+        } else if totalTokens >= 1000 {
+            return String(format: "%.1fK", Double(totalTokens) / 1000)
+        } else {
+            return "\(totalTokens)"
+        }
+    }
+
+    var totalCostDisplay: String {
+        hasCostData ? String(format: "$%.4f", totalCost) : "N/A"
+    }
+}
+
+struct ModelUsageStat: Identifiable, Sendable {
+    var id: String { modelId }
+    let modelId: String
+    var messageCount: Int
+    var totalTokens: Int
+    var totalCost: Double
+    var hasCostData: Bool
+    var lastUsed: Date
+
+    var totalTokensDisplay: String {
+        if totalTokens >= 1_000_000 {
+            return String(format: "%.1fM", Double(totalTokens) / 1_000_000)
+        } else if totalTokens >= 1000 {
+            return String(format: "%.1fK", Double(totalTokens) / 1000)
+        } else {
+            return "\(totalTokens)"
+        }
+    }
+
+    var totalCostDisplay: String {
+        hasCostData ? String(format: "$%.4f", totalCost) : "N/A"
+    }
+}
+
+struct ConversationUsageStat: Identifiable, Sendable {
+    let conversationId: UUID
+    var id: UUID { conversationId }
+    var name: String
+    var messageCount: Int
+    var totalTokens: Int
+    var totalCost: Double
+    var hasCostData: Bool
+
+    var totalTokensDisplay: String {
+        if totalTokens >= 1_000_000 {
+            return String(format: "%.1fM", Double(totalTokens) / 1_000_000)
+        } else if totalTokens >= 1000 {
+            return String(format: "%.1fK", Double(totalTokens) / 1000)
+        } else {
+            return "\(totalTokens)"
+        }
+    }
+
+    var totalCostDisplay: String {
+        hasCostData ? String(format: "$%.4f", totalCost) : "N/A"
+    }
+}