Attractor/SBrowser/Browser View/BrowserViewController.swift

//
//  BrowserViewController.swift
//  SBrowser
//
//  Created by James Magahern on 7/21/20.
//

import UIKit

class BrowserViewController: UIViewController, SBRProcessBundleBridgeDelegate
{
    let bridge = SBRProcessBundleBridge()
    let browserView = BrowserView()
    
    private let policyManager = ResourcePolicyManager()
    private var blockedScriptOrigins = Set<String>()
    private var scriptBlockerButtonItem: UIBarButtonItem
    
    init()
    {
        scriptBlockerButtonItem = UIBarButtonItem(title: "0", image: nil, primaryAction: UIAction(handler: { action in
            // present
        }), menu: nil)
        
        super.init(nibName: nil, bundle: nil)
    }
    
    required init?(coder: NSCoder) { fatalError("init(coder:) has not been implemented") }
    
    override func loadView()
    {
        bridge.delegate = self
        bridge.policyDataSource = policyManager
        
        let webView = bridge.webView
        webView.allowsBackForwardNavigationGestures = true
        
        browserView.webView = webView
        
        self.view = browserView
    }
    
    override func viewDidLoad()
    {
        let request = URLRequest(url: URL(string: "https://yahoo.com")!)
        browserView.webView?.load(request)
        
        setToolbarItems([ scriptBlockerButtonItem ], animated: false)
    }
    
    private func updateScriptBlockerButton()
    {
        scriptBlockerButtonItem.title = "\(blockedScriptOrigins.count)"
    }
    
    // MARK: SBRProcessBundleBridgeDelegate
    
    func webProcess(_ bridge: SBRProcessBundleBridge, didBlockScriptResourceFromOrigin origin: String)
    {
        print("Blocked script resource from origin: \(origin)")
        
        blockedScriptOrigins.formUnion([ origin ])
        updateScriptBlockerButton()
    }
}