//
//  PersonaStore.swift
//  Zyquo Agent
//
//  Author: Simon-Pierre Boucher
//  Mail: contact@spboucher.ai
//
//  Personas (Phase 6): system-prompt addition + preferred agent model +
//  default safety mode, persisted to personas.json. A task adopting a
//  persona gets its addendum appended to the agent system prompt on every
//  run (AgentConfiguration.personaAddendum).
//

import Combine
import Foundation

@MainActor
final class PersonaStore: ObservableObject {
    static let fileName = "personas.json"

    @Published private(set) var personas: [Persona] {
        didSet { persistence.save(personas, to: Self.fileName) }
    }

    private let persistence: PersistenceService

    init(persistence: PersistenceService = .shared) {
        self.persistence = persistence
        self.personas = persistence.load([Persona].self, from: Self.fileName) ?? []
    }

    func persona(id: UUID?) -> Persona? {
        guard let id else { return nil }
        return personas.first { $0.id == id }
    }

    // MARK: - CRUD

    func add(_ persona: Persona) {
        personas.append(persona)
    }

    func update(_ persona: Persona) {
        guard let index = personas.firstIndex(where: { $0.id == persona.id }) else { return }
        personas[index] = persona
    }

    func delete(_ id: Persona.ID) {
        personas.removeAll { $0.id == id }
    }
}