//
//  SelfTest.swift
//  Pocket Poster
//
//  Launch-time diagnostics, enabled with POCKET_POSTER_SELFTEST=1.
//  Used to verify worse_query and container discovery on-device.
//

import Foundation
import UIKit

enum SelfTest {
    static var isEnabled: Bool {
        ProcessInfo.processInfo.environment["POCKET_POSTER_SELFTEST"] == "1"
    }

    static func run() {
        print("=== Pocket Poster self-test ===")
        print("OS: \(ProcessInfo.processInfo.operatingSystemVersionString)")
        print("Bundle: \(Bundle.main.bundleIdentifier ?? "?")")
        print("App Group: \(SandboxEscape.appGroupIdentifier ?? "nil")")
        print("Backend: \(String(describing: SandboxEscape.backend))")

        guard SandboxEscape.isAvailable else {
            print("self-test: sandbox escape unavailable")
            print("=== self-test done ===")
            return
        }

        // 1. Can worse_query grant access to each search root?
        for root in SandboxEscape.defaultSearchRoots {
            do {
                let handle = try SandboxEscape.consume(path: root, create: true)
                print("access OK: \(root) (handle \(handle.handle))")
                handle.release()
            } catch {
                print("access FAIL: \(root): \(error.localizedDescription)")
            }
        }

        // 2. Can we find PosterBoard's data container?
        let start = Date()
        do {
            let hash = try SandboxEscape.findPosterBoardHash()
            print("PosterBoard hash: \(hash) (scan \(String(format: "%.1f", Date().timeIntervalSince(start)))s)")
            let container = SandboxEscape.applicationContainerPath(appHash: hash)
            print("PosterBoard container: \(container)")

            // 3. Can we open the CollectionsPoster descriptors directory?
            let descriptors = SandboxEscape.descriptorsPath(
                appHash: hash,
                ext: "com.apple.WallpaperKit.CollectionsPoster"
            )
            do {
                let handle = try SandboxEscape.consume(path: descriptors, create: true)
                print("descriptors OK: \(descriptors) (handle \(handle.handle))")
                handle.release()
            } catch {
                print("descriptors FAIL: \(descriptors): \(error.localizedDescription)")
            }
        } catch {
            print("PosterBoard detect FAIL: \(error.localizedDescription)")
        }

        // 4. CarPlay container (phones only).
        if UIDevice.current.userInterfaceIdiom == .phone {
            do {
                let hash = try SandboxEscape.findCarPlayHash()
                print("CarPlayWallpaper hash: \(hash)")
            } catch {
                print("CarPlayWallpaper detect FAIL: \(error.localizedDescription)")
            }
        }

        print("=== self-test done ===")
    }
}