//
//  EmailLog.swift
//  Confab
//
//  Email processing log entry model
//
// SPDX-License-Identifier: PolyForm-Noncommercial-1.0.0
// Copyright (C) 2026 Rune Olsen
//
// This file is part of Confab.
//
// Confab 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 Confab 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://confab.no>.


import Foundation

enum EmailLogStatus: String, Codable {
    case success
    case error
}

struct EmailLog: Identifiable, Codable, Equatable {
    let id: UUID
    let timestamp: Date
    let sender: String
    let subject: String
    let emailContent: String // Preview of email body
    let aiResponse: String? // The AI's response (nil if error before response)
    let status: EmailLogStatus
    let errorMessage: String? // Error details if status == .error
    let tokens: Int?
    let cost: Double?
    let responseTime: TimeInterval? // Time to generate response in seconds
    let modelId: String? // Model that handled the email

    nonisolated init(
        id: UUID = UUID(),
        timestamp: Date = Date(),
        sender: String,
        subject: String,
        emailContent: String,
        aiResponse: String? = nil,
        status: EmailLogStatus,
        errorMessage: String? = nil,
        tokens: Int? = nil,
        cost: Double? = nil,
        responseTime: TimeInterval? = nil,
        modelId: String? = nil
    ) {
        self.id = id
        self.timestamp = timestamp
        self.sender = sender
        self.subject = subject
        self.emailContent = emailContent
        self.aiResponse = aiResponse
        self.status = status
        self.errorMessage = errorMessage
        self.tokens = tokens
        self.cost = cost
        self.responseTime = responseTime
        self.modelId = modelId
    }

    static func == (lhs: EmailLog, rhs: EmailLog) -> Bool {
        lhs.id == rhs.id &&
        lhs.sender == rhs.sender &&
        lhs.subject == rhs.subject &&
        lhs.status == rhs.status
    }
}

// MARK: - Display Helpers

extension EmailLogStatus {
    var displayName: String {
        switch self {
        case .success: return "Success"
        case .error: return "Error"
        }
    }

    var iconName: String {
        switch self {
        case .success: return "checkmark.circle.fill"
        case .error: return "xmark.circle.fill"
        }
    }

    var color: String {
        switch self {
        case .success: return "green"
        case .error: return "red"
        }
    }
}
