//
//  PersistenceService.swift
//  Zyquo Atlas
//
//  Author: Simon-Pierre Boucher
//  Mail: contact@spboucher.ai
//
//  Owns Zyquo Atlas's on-disk root and the browsing-data subfolders. The
//  encrypted key vault (SecureKeyStore) and, in later phases, bookmarks /
//  history / sessions / profiles live under this root. Deliberately minimal in
//  Phase 3 — it exists so SecureKeyStore has a stable rootDirectory
//  (`~/Library/Application Support/ZyquoAtlas/`), separate from Zyquo Cloud's.
//

import Foundation

final class PersistenceService {
    static let shared = PersistenceService()

    /// `~/Library/Application Support/ZyquoAtlas/`, created on first access.
    let rootDirectory: URL
    /// `…/ZyquoAtlas/Profiles/` — per-profile browsing data (Phase 4/6).
    let profilesDirectory: URL

    private init() {
        let appSupport = FileManager.default.urls(
            for: .applicationSupportDirectory, in: .userDomainMask
        ).first ?? URL(fileURLWithPath: NSHomeDirectory())
            .appendingPathComponent("Library/Application Support")

        rootDirectory = appSupport.appendingPathComponent("ZyquoAtlas", isDirectory: true)
        profilesDirectory = rootDirectory.appendingPathComponent("Profiles", isDirectory: true)

        for dir in [rootDirectory, profilesDirectory] {
            try? FileManager.default.createDirectory(
                at: dir, withIntermediateDirectories: true
            )
        }
    }
}