288 lines
11 KiB
Swift
288 lines
11 KiB
Swift
import Foundation
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#if canImport(FoundationNetworking)
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import FoundationNetworking
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#endif
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public enum PoeUsageError: LocalizedError, Sendable {
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case missingCredentials
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case networkError(String)
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case apiError(String)
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case unauthorized
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case parseFailed(String)
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public var errorDescription: String? {
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switch self {
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case .missingCredentials:
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"Missing Poe API token."
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case let .networkError(message):
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"Poe network error: \(message)"
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case let .apiError(message):
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"Poe API error: \(message)"
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case .unauthorized:
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"Invalid or expired Poe API token."
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case let .parseFailed(message):
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"Failed to parse Poe response: \(message)"
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}
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}
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}
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public struct PoeUsageFetcher: Sendable {
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private static let log = CodexBarLog.logger(LogCategories.poeUsage)
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private static let usageURL = URL(string: "https://api.poe.com/usage/current_balance")!
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private static let historyURL = URL(string: "https://api.poe.com/usage/points_history")!
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private static let timeoutSeconds: TimeInterval = 15
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public static func fetchUsage(apiKey: String) async throws -> PoeUsageSnapshot {
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try await self._fetchUsage(apiKey: apiKey, transport: ProviderHTTPClient.shared)
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}
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static func _fetchUsage(
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apiKey: String,
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transport: any ProviderHTTPTransport) async throws -> PoeUsageSnapshot
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{
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let trimmed = apiKey.trimmingCharacters(in: .whitespacesAndNewlines)
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guard !trimmed.isEmpty else {
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throw PoeUsageError.missingCredentials
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}
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var request = URLRequest(url: self.usageURL)
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request.httpMethod = "GET"
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request.setValue("Bearer \(trimmed)", forHTTPHeaderField: "Authorization")
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request.setValue("application/json", forHTTPHeaderField: "Accept")
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request.timeoutInterval = Self.timeoutSeconds
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let response = try await self.perform(request: request, transport: transport)
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let balance = try self.parseSnapshot(data: response.data).currentPointBalance
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// `points_history` is a best-effort supplement; never let an optional
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// history failure cost the user the current balance display.
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let history: PoeUsageHistorySnapshot?
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do {
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history = try await self.fetchHistory(apiKey: trimmed, transport: transport)
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} catch {
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Self.log.error("Poe points_history fetch failed; returning balance only: \(error)")
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history = nil
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}
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return PoeUsageSnapshot(
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currentPointBalance: balance,
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history: history,
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updatedAt: Date())
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}
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static func _parseSnapshotForTesting(_ data: Data) throws -> PoeUsageSnapshot {
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try self.parseSnapshot(data: data)
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}
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static func _parseHistoryPageForTesting(_ data: Data) throws
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-> (entries: [PoeUsageHistorySnapshot.Entry], nextCursor: String?)
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{
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try self.parseHistoryPage(data: data)
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}
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static func _buildDailyBucketsForTesting(entries: [PoeUsageHistorySnapshot.Entry])
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-> [PoeUsageHistorySnapshot.DailyBucket] {
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self.buildDailyBuckets(entries: entries)
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}
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private static func parseSnapshot(data: Data) throws -> PoeUsageSnapshot {
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guard let root = try? JSONSerialization.jsonObject(with: data) as? [String: Any] else {
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throw PoeUsageError.parseFailed("Invalid JSON")
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}
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let balance = self.double(from: root["current_point_balance"])
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return PoeUsageSnapshot(
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currentPointBalance: balance,
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updatedAt: Date())
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}
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private static func fetchHistory(
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apiKey: String,
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transport: any ProviderHTTPTransport) async throws -> PoeUsageHistorySnapshot?
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{
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var cursor: String?
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var entries: [PoeUsageHistorySnapshot.Entry] = []
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let cutoff = Date().addingTimeInterval(-30 * 24 * 3600)
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var page = 0
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while page < 5 {
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page += 1
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var components = URLComponents(url: self.historyURL, resolvingAgainstBaseURL: false)
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var query: [URLQueryItem] = [URLQueryItem(name: "limit", value: "100")]
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if let cursor, !cursor.isEmpty {
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query.append(URLQueryItem(name: "starting_after", value: cursor))
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}
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components?.queryItems = query
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guard let url = components?.url else {
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throw PoeUsageError.parseFailed("Invalid points_history URL")
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}
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var request = URLRequest(url: url)
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request.httpMethod = "GET"
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request.timeoutInterval = Self.timeoutSeconds
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request.setValue("Bearer \(apiKey)", forHTTPHeaderField: "Authorization")
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request.setValue("application/json", forHTTPHeaderField: "Accept")
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let response = try await self.perform(request: request, transport: transport)
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let parsed = try self.parseHistoryPage(data: response.data)
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entries.append(contentsOf: parsed.entries)
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cursor = parsed.nextCursor
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if parsed.entries.last?.createdAt ?? .distantPast < cutoff { break }
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if cursor == nil { break }
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}
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guard !entries.isEmpty else { return nil }
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let filtered = entries.filter { $0.createdAt >= cutoff }
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guard !filtered.isEmpty else { return nil }
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let daily = self.buildDailyBuckets(entries: filtered)
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return PoeUsageHistorySnapshot(entries: filtered, daily: daily, updatedAt: Date())
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}
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private static func buildDailyBuckets(entries: [PoeUsageHistorySnapshot.Entry])
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-> [PoeUsageHistorySnapshot.DailyBucket] {
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var acc: [String: (points: Double, requests: Int, costUSD: Double)] = [:]
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let formatter = DateFormatter()
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formatter.locale = Locale(identifier: "en_US_POSIX")
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formatter.timeZone = TimeZone(secondsFromGMT: 0)
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formatter.dateFormat = "yyyy-MM-dd"
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for entry in entries {
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let key = formatter.string(from: entry.createdAt)
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var row = acc[key] ?? (points: 0, requests: 0, costUSD: 0)
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row.points += max(0, entry.points)
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row.requests += 1
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row.costUSD += max(0, entry.costUSD ?? 0)
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acc[key] = row
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}
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return acc.keys.sorted().map { day in
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let row = acc[day] ?? (0, 0, 0)
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return PoeUsageHistorySnapshot.DailyBucket(
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day: day,
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points: row.points,
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requests: row.requests,
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costUSD: row.costUSD > 0 ? row.costUSD : nil)
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}
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}
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private static func parseHistoryPage(data: Data) throws
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-> (entries: [PoeUsageHistorySnapshot.Entry], nextCursor: String?)
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{
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guard let root = try? JSONSerialization.jsonObject(with: data) as? [String: Any] else {
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throw PoeUsageError.parseFailed("Invalid history JSON")
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}
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let rawEntries: [[String: Any]] = if let rows = root["data"] as? [[String: Any]] {
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rows
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} else if let rows = root["items"] as? [[String: Any]] {
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rows
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} else if let rows = root["results"] as? [[String: Any]] {
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rows
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} else {
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[]
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}
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let entries = rawEntries.compactMap { row -> PoeUsageHistorySnapshot.Entry? in
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guard let createdAt = self
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.date(fromHistoryValue: row["creation_time"] ?? row["timestamp"] ?? row["created_at"])
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else {
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return nil
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}
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let model = (row["bot_name"] as? String)?
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.trimmingCharacters(in: .whitespacesAndNewlines)
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?? "unknown"
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let usageType = (row["usage_type"] as? String)?
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.trimmingCharacters(in: .whitespacesAndNewlines)
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?? "unknown"
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let points = self.double(from: row["cost_points"])
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?? self.double(from: row["points"])
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?? self.double(from: row["point_cost"])
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?? 0
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let costUSD = self.double(from: row["cost_usd"] ?? row["usd"])
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let id = (row["query_id"] as? String)
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?? (row["message_id"] as? String)
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?? (row["id"] as? String)
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?? "\(createdAt.timeIntervalSince1970)-\(model)"
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return PoeUsageHistorySnapshot.Entry(
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id: id,
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createdAt: createdAt,
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model: model.isEmpty ? "unknown" : model,
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usageType: usageType.isEmpty ? "unknown" : usageType,
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points: max(0, points),
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costUSD: costUSD)
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}
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let nextCursor = (root["next_cursor"] as? String)?
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.trimmingCharacters(in: .whitespacesAndNewlines)
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if let nextCursor, !nextCursor.isEmpty {
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return (entries: entries, nextCursor: nextCursor)
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}
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if let hasMore = root["has_more"] as? Bool, hasMore {
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let fallbackCursor = (rawEntries.last?["query_id"] as? String)?
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.trimmingCharacters(in: .whitespacesAndNewlines)
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if let fallbackCursor, !fallbackCursor.isEmpty {
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return (entries: entries, nextCursor: fallbackCursor)
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}
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}
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return (entries: entries, nextCursor: nil)
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}
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private static func date(fromHistoryValue value: Any?) -> Date? {
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switch value {
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case let number as NSNumber:
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return self.date(fromNumericTimestamp: number.doubleValue)
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case let string as String:
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let trimmed = string.trimmingCharacters(in: .whitespacesAndNewlines)
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if let numeric = Double(trimmed) {
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return self.date(fromNumericTimestamp: numeric)
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}
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let formatter = ISO8601DateFormatter()
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return formatter.date(from: trimmed)
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default:
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return nil
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}
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}
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private static func date(fromNumericTimestamp raw: Double) -> Date? {
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guard raw.isFinite, raw > 0 else { return nil }
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if raw > 1_000_000_000_000 {
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return Date(timeIntervalSince1970: raw / 1_000_000)
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}
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return Date(timeIntervalSince1970: raw)
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}
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private static func perform(
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request: URLRequest,
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transport: any ProviderHTTPTransport) async throws -> ProviderHTTPResponse
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{
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let (data, urlResponse) = try await transport.data(for: request)
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guard let httpResponse = urlResponse as? HTTPURLResponse else {
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throw PoeUsageError.networkError("Non-HTTP response")
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}
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let response = ProviderHTTPResponse(data: data, response: httpResponse)
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guard response.statusCode == 200 else {
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let body = String(data: data, encoding: .utf8) ?? ""
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Self.log.error("Poe API returned \(response.statusCode): \(body)")
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if response.statusCode == 401 || response.statusCode == 403 {
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throw PoeUsageError.unauthorized
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}
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throw PoeUsageError.apiError("HTTP \(response.statusCode)")
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}
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return response
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}
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// MARK: - Value parsing
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private static func double(from value: Any?) -> Double? {
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switch value {
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case let number as NSNumber:
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let raw = number.doubleValue
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return raw.isFinite ? raw : nil
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case let string as String:
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let trimmed = string.trimmingCharacters(in: .whitespacesAndNewlines)
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guard !trimmed.isEmpty, let raw = Double(trimmed), raw.isFinite else { return nil }
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return raw
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default:
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return nil
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}
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}
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}
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