//
//  AuthManager.swift
//  Nextcloud Cookbook iOS Client
//
//  Created by Vincent Meilinger on 30.05.25.
//

import Foundation
import KeychainSwift

class AuthManager {
    static let shared = AuthManager()
    let keychain = KeychainSwift()
    
    var authString: String? = nil
    
    private let nextcloudUsernameKey = "nextcloud_username"
    private let nextcloudAuthStringKey = "nextcloud_auth_string" // Stored as base64
    
    func saveNextcloudCredentials(username: String, appPassword: String) {
        keychain.set(username, forKey: nextcloudUsernameKey)

        let loginString = "\(username):\(appPassword)"
        if let loginData = loginString.data(using: .utf8) {
            keychain.set(loginData.base64EncodedString(), forKey: nextcloudAuthStringKey)
        }
    }

    func getNextcloudCredentials() -> (username: String?, authString: String?) {
        let username = keychain.get(nextcloudUsernameKey)
        let authString = keychain.get(nextcloudAuthStringKey)
        
        return (username, authString)
    }
    
    func loadAuthString() {
        authString = keychain.get(nextcloudAuthStringKey)
    }
    
    func deleteNextcloudCredentials() {
        keychain.delete(nextcloudUsernameKey)
        keychain.delete(nextcloudAuthStringKey)
    }
}