GitHawk/FreetimeWatch Extension/RepoInboxController.swift

//
//  RepoInboxController.swift
//  FreetimeWatch Extension
//
//  Created by Ryan Nystrom on 4/27/18.
//  Copyright © 2018 Ryan Nystrom. All rights reserved.
//

import WatchKit
import Foundation
import GitHubAPI
import DateAgo
import StringHelpers

final class RepoInboxController: WKInterfaceController {

    struct Context {
        let client: Client
        let repo: V3Repository
        let notifications: [V3Notification]
        let dataController: InboxDataController
    }
    
    @IBOutlet var table: WKInterfaceTable!
    private var context: Context?

    override func awake(withContext context: Any?) {
        super.awake(withContext: context)

        guard let context = context as? Context else { return }
        self.context = context

        setTitle(context.repo.name)

        reload()
    }

    override func table(_ table: WKInterfaceTable, didSelectRowAt rowIndex: Int) {
        // only handle selections on the "mark read" button
        guard rowIndex == 0, let context = self.context else { return }

        let repo = context.repo
        let dataController = context.dataController
        dataController.read(repository: repo)

        context.client.send(V3MarkRepositoryNotificationsRequest(
            owner: repo.owner.login,
            repo: repo.name
        )) { result in
            // will unwind the read even though the controller is pushed
            if case .failure = result {
                dataController.unread(repository: repo)
            }
        }

        pop()
    }

    // MARK: Private API

    func reload() {
        guard let context = self.context else { return }

        table.insertRows(at: IndexSet(integer: 0), withRowType: ReadAllRowController.rowControllerIdentifier)
        let controller = table.rowController(at: 0) as? ReadAllRowController
        controller?.setup()

        table.insertRows(at: IndexSet(integersIn: 1 ..< context.notifications.count + 1), withRowType: RepoInboxRowController.rowControllerIdentifier)
        for (i, n) in context.notifications.enumerated() {
            guard let row = table.rowController(at: i+1) as? RepoInboxRowController else { continue }
            row.setup(with: n)
        }
    }

}