Tusker/Tusker/Screens/Utilities/Previewing.swift

//
//  PreviewViewControllerProvider.swift
//  Tusker
//
//  Created by Shadowfacts on 10/10/18.
//  Copyright © 2018 Shadowfacts. All rights reserved.
//

import UIKit
import SafariServices
import Pachyderm

protocol MenuPreviewProvider {
    
    typealias PreviewProviders = (content: UIContextMenuContentPreviewProvider, actions: () -> [UIAction])
    
    func getPreviewProviders(for location: CGPoint, sourceViewController: UIViewController) -> PreviewProviders?
    
}

extension MenuPreviewProvider {
    
    fileprivate func present(_ vc: UIViewController) {
        UIApplication.shared.keyWindow!.rootViewController!.present(vc, animated: true)
    }
    
    func actionsForProfile(accountID: String) -> [UIAction] {
        guard let account = MastodonCache.account(for: accountID) else { return [] }
        return [
            UIAction(__title: "Open in Safari", image: UIImage(systemName: "safari")) { (_) in
                self.present(SFSafariViewController(url: account.url))
            },
            UIAction(__title: "Send Message", image: UIImage(systemName: "envelope")) { (_) in
                self.present(UINavigationController(rootViewController: ComposeViewController(mentioningAcct: account.acct)))
            },
            UIAction(__title: "Share...", image: UIImage(systemName: "square.and.arrow.up")) { (_) in
                self.present(UIActivityViewController(activityItems: [account.url], applicationActivities: nil))
            }
        ]
    }
    
    func actionsForURL(_ url: URL) -> [UIAction] {
        return [
            UIAction(__title: "Open in Safari", image: UIImage(systemName: "safari")) { (_) in
                self.present(SFSafariViewController(url: url))
            },
            UIAction(__title: "Share...", image: UIImage(systemName: "square.and.arrow.up")) { (_) in
                self.present(UIActivityViewController(activityItems: [url], applicationActivities: nil))
            }
        ]
    }
    
    func actionsForHashtag(_ hashtag: Hashtag) -> [UIAction] {
        return actionsForURL(hashtag.url)
    }
    
    func actionsForStatus(statusID: String) -> [UIAction] {
        guard let status = MastodonCache.status(for: statusID) else { return [] }
        return [
            UIAction(__title: "Reply", image: UIImage(systemName: "arrowshape.turn.up.left")) { (_) in
                self.present(UINavigationController(rootViewController: ComposeViewController(inReplyTo: statusID)))
            },
            UIAction(__title: "Open in Safari", image: UIImage(systemName: "safari")) { (_) in
                self.present(SFSafariViewController(url: status.url!))
            },
            UIAction(__title: "Share...", image: UIImage(systemName: "square.and.arrow.up")) { (_) in
                self.present(UIActivityViewController(activityItems: [status.url!], applicationActivities: nil))
            }
        ]
    }
    
}