//
//  AppDelegate.swift
//  Gemini
//
//  Created by Shadowfacts on 7/12/20.
//

import Cocoa
import SwiftUI
import GeminiProtocol

@NSApplicationMain
class AppDelegate: NSObject, NSApplicationDelegate {

    var window: NSWindow!

    var connection: GeminiConnection!
    let url = URL(string: "gemini://localhost:1965/overview.gmi")!
    
    func applicationDidFinishLaunching(_ aNotification: Notification) {
        // Create the SwiftUI view that provides the window contents.
        let contentView = ContentView()

        // Create the window and set the content view.
        window = NSWindow(
            contentRect: NSRect(x: 0, y: 0, width: 480, height: 300),
            styleMask: [.titled, .closable, .miniaturizable, .resizable, .fullSizeContentView],
            backing: .buffered, defer: false)
        window.isReleasedWhenClosed = false
        window.center()
        window.setFrameAutosaveName("Main Window")
        window.contentView = NSHostingView(rootView: contentView)
        window.title = "Gemini"
        window.makeKeyAndOrderFront(nil)
        
        connection = GeminiConnection(endpoint: .url(url), delegate: self)
    }

    func applicationWillTerminate(_ aNotification: Notification) {
        // Insert code here to tear down your application
    }

    var alreadyReceived = false

}

extension AppDelegate: GeminiConnectionDelegate {
    func connectionReady(_ connection: GeminiConnection) {
        print("!! Ready")
        let req = try! GeminiRequest(url: url)
        connection.sendRequest(req)
    }
    
    func connection(_ connection: GeminiConnection, receivedData data: Data?, header: GeminiResponseHeader) {
        if !alreadyReceived {
            alreadyReceived = true
            print("!! Status: \(header.status)")
            print("!! Meta: '\(header.meta)'")
        }
        if let data = data {
            print("Received: \(data)")
            print(String(data: data, encoding: .utf8)!.debugDescription)
        }
    }
    
    func connection(_ connection: GeminiConnection, handleError error: GeminiConnection.Error) {
        print("!! connection error: \(error)")
    }
    
    func connectionCompleted(_ connection: GeminiConnection) {
        print("!! completed")
    }
}