//
//  FontManagerView.swift
//  ShhShell
//
//  Created by neon443 on 06/07/2025.
//

import SwiftUI

struct FontManagerView: View {
	@ObservedObject var hostsManager: HostsManager
	
	@State var testLine: String = "the lazy brown fox jumps over the lazy dog"
	
	var body: some View {
		ZStack {
			hostsManager.selectedTheme.background.suiColor.opacity(0.7)
				.ignoresSafeArea(.all)
			List {
				VStack {
					HStack {
						Text("Font Size")
						Spacer()
						Text("\(Int(hostsManager.fontSize))")
							.contentTransition(.numericText())
					}
					.padding(.horizontal)
					
					Slider(value: $hostsManager.fontSize, in: 1...20, step: 1) {
						
					} minimumValueLabel: {
						Image(systemName: "textformat.size.smaller")
					} maximumValueLabel: {
						Image(systemName: "textformat.size.larger")
					} onEditingChanged: { bool in
						hostsManager.saveFonts()
					}
				}
				
				ForEach(FontFamilies.allCasesRaw, id: \.self) { fontName in
					let selected = hostsManager.selectedFont == fontName
					Button() {
						hostsManager.selectFont(fontName)
					} label: {
						VStack(alignment: .leading, spacing: 5) {
							Text(fontName)
								.foregroundStyle(.gray)
							HStack {
								Circle()
									.frame(width: 20)
									.opacity(selected ? 1 : 0)
									.foregroundStyle(.green)
									.animation(.spring, value: selected)
									.transition(.scale)
								Text(testLine)
									.font(.custom(fontName, size: 15))
									.bold(selected)
									.opacity(selected ? 1 : 0.8)
									.contentTransition(.numericText())
									.animation(.default, value: testLine)
							}
						}
					}
				}
				
				Section("Test String") {
					TextField("", text: $testLine)
						.fixedSize()
				}
			}
		}
		.navigationTitle("Fonts")
		.scrollContentBackground(.hidden)
	}
}

#Preview {
	FontManagerView(hostsManager: HostsManager())
}