//
//  AppEnvironment.swift
//  Zyquo Atlas
//
//  Author: Simon-Pierre Boucher
//  Mail: contact@spboucher.ai
//
//  App-wide shared services injected into the view tree: the model catalog
//  (all Zyquo Cloud models) and the encrypted key vault. Held once at the app
//  root so every window/tab shares one catalog and one vault.
//

import Foundation
import SwiftUI

@MainActor
final class AppEnvironment: ObservableObject {
    let catalog = ModelCatalog()
    let vault = KeyVaultStore()
    let bookmarks = BookmarksService()
    let history = HistoryService()

    /// The user's default browsing model (recommended-first from the catalog).
    var defaultModel: AIModel? { catalog.defaultModel }

    /// Resolves the model for an action class, honoring per-action overrides.
    func model(for action: AIActionClass) -> AIModel? {
        if let id = actionModelIDs[action],
           let m = catalog.all.first(where: { $0.id == id }) { return m }
        switch action {
        case .fast:
            return catalog.builtIn.first { !$0.isLegacy && !$0.capabilities.reasoning } ?? defaultModel
        case .standard, .deep:
            return defaultModel
        }
    }

    /// Per-action-class default model overrides (fast hovers vs deep chat).
    @Published var actionModelIDs: [AIActionClass: String] = [:]
}

/// Model tiers for per-action default selection (docs/AI-BROWSER-RESEARCH.md §3).
enum AIActionClass: String, Codable, CaseIterable {
    case fast      // hover/auto summaries — cheap & quick
    case standard  // summarize, translate, selection actions
    case deep      // chat-with-page, multi-tab reasoning
}