//
//  UserActivities.swift
//  Reader
//
//  Created by Shadowfacts on 1/15/22.
//

import Foundation

extension NSUserActivity {
    
    static let preferencesType = "net.shadowfacts.Reader.activity.preferences"
    static let addAccountType = "net.shadowfacts.Reader.activity.add-account"
    static let activateAccountType = "net.shadowfacts.Reader.activity.activate-account"
    static let readUnreadType = "net.shadowfacts.Reader.activity.read-unread"
    static let readAllType = "net.shadowfacts.Reader.activity.read-all"
    
    func accountID() -> Data? {
        let types = [
            NSUserActivity.activateAccountType,
            NSUserActivity.readUnreadType,
            NSUserActivity.readAllType,
        ]
        if types.contains(self.activityType),
           let id = self.userInfo?["accountID"] as? Data {
            return id
        } else {
            return nil
        }
    }
    
    static func preferences() -> NSUserActivity {
        return NSUserActivity(activityType: preferencesType)
    }
    
    static func addAccount() -> NSUserActivity {
        return NSUserActivity(activityType: addAccountType)
    }
    
    static func activateAccount(_ account: LocalData.Account) -> NSUserActivity {
        let activity = NSUserActivity(activityType: activateAccountType)
        activity.userInfo = [
            "accountID": account.id,
        ]
        return activity
    }
    
    static func readUnread(account: LocalData.Account) -> NSUserActivity {
        let activity = NSUserActivity(activityType: readUnreadType)
        activity.isEligibleForHandoff = true
        activity.isEligibleForPrediction = true
        activity.title = "Show unread articles"
        activity.userInfo = [
            "accountID": account.id
        ]
        activity.targetContentIdentifier = account.id.base64EncodedString()
        return activity
    }
    
    static func readAll(account: LocalData.Account) -> NSUserActivity {
        let activity = NSUserActivity(activityType: readAllType)
        activity.isEligibleForHandoff = true
        activity.isEligibleForPrediction = true
        activity.title = "Show all articles"
        activity.userInfo = [
            "accountID": account.id
        ]
        activity.targetContentIdentifier = account.id.base64EncodedString()
        return activity
    }
    
}