//
//  Conversation.swift
//  oAI
//
//  Model for saved conversations
//
// 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 Conversation: Identifiable, Codable {
    let id: UUID
    var name: String
    var messages: [Message]
    let createdAt: Date
    var updatedAt: Date
    var primaryModel: String? // Primary model used in this conversation

    nonisolated init(
        id: UUID = UUID(),
        name: String,
        messages: [Message] = [],
        createdAt: Date = Date(),
        updatedAt: Date = Date(),
        primaryModel: String? = nil
    ) {
        self.id = id
        self.name = name
        self.messages = messages
        self.createdAt = createdAt
        self.updatedAt = updatedAt
        self.primaryModel = primaryModel
    }
    
    var messageCount: Int {
        messages.count
    }
    
    var lastMessageDate: Date {
        messages.last?.timestamp ?? updatedAt
    }
}