//
//  ContentView.swift
//  Bill Watch Demo Watch App
//
//  Created by Bill Hoo on 2024/4/1.
//

import SwiftUI

struct ContentView: View {
    
    @State var txt = "Hello World!"
    
    var body: some View {
        VStack {
            Image(systemName: "globe")
                .imageScale(.large)
                .foregroundStyle(.tint)	
            
            Text(txt)
            
            Button("Click") {
                startLoad()
            }
        }.padding()
    }
    
    func startLoad() {
        let config = URLSessionConfiguration.default
        config.waitsForConnectivity = false
        config.allowsCellularAccess = true
        config.allowsExpensiveNetworkAccess = true
        config.allowsConstrainedNetworkAccess = true

        let sesh = URLSession(configuration: config)
        let url = URL(string: "https://www.example.com")!
        
        sesh.dataTask(with: url) { data, response, error in
            if let error = error {
                self.txt = error.localizedDescription
                // self.handleClientError(error)
                return
            }
            
            guard let httpResponse = response as? HTTPURLResponse,
                (200...299).contains(httpResponse.statusCode) else {
                self.txt = response.debugDescription
                // self.handleServerError(response)
                return
            }
            
            if let mimeType = httpResponse.mimeType, mimeType == "text/html",
                let data = data,
                let string = String(data: data, encoding: .utf8) {
                
                DispatchQueue.main.async {
                    self.txt = string
                    // self.webView.loadHTMLString(string, baseURL: url)
                }
            }
        }.resume()
    }
}

#Preview {
    ContentView()
}