using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;

namespace Sarand.Net.Mobile.Maui.App
{
	// Colour references:
	//   http://www.html-color-names.com/skyblue.php
	//   http://www.html-color-names.com/lightsteelblue.php

	public static class Sam
	{
		// --- Configuration ---
		// Values in this class are intended to be configured during application
		// startup. Controls normally copy visual defaults when they are created;
		// changing a value later does not automatically update existing controls.

		// --- Definitions ---
		public enum Platform
		{
			Unknown = 0,
			Android,
			IOS,
			MacCatalyst,
			Windows
		}
		/// <summary>Shared random-number generator for common MAUI code.</summary>
		public static Random Random { get; set; } = new Random();

		// --- Localisation ---
		/// <summary>Application-wide culture settings used by consumers that opt in.</summary>
		public static class Locale
		{
			/// <summary>The culture used for application-level formatting.</summary>
			public static CultureInfo CultureInfo { get; set; } = CultureInfo.CurrentCulture;
			/// <summary>Text rules associated with <see cref="CultureInfo"/>.</summary>
			public static TextInfo TextInfo { get; set; } = CultureInfo.TextInfo;
		}

		// --- Visuals ---
		/// <summary>Supported positions for optional page content.</summary>
		public enum DisplayPosition { None, Left, Middle, Right }

		/// <summary>Shared visual defaults for common MAUI components.</summary>
		public static class Visuals
		{
			// --- Application styling ---
			public static class Application
			{
				// --- Application bar ---
				public static class Bar
				{
					public static double Height { get; set; } = 28;
					public static Color BackgroundColor { get; set; } = Color.FromArgb("#558395");
					public static Color TextColor { get; set; } = Color.FromArgb("#f8f8f8");
					public static double TextSizeRatio { get; set; } = 1.5;
					public static Color BorderColor { get; set; } = Colors.DarkSlateBlue;
					public static double BorderBottom { get; set; } = 1.0;
				}
				// --- Menu ---
				public static class Menu
				{
					public static Color BorderColor { get; set; } = Colors.DarkSlateBlue;
					public static double Border { get; set; } = 1.0;
					public static Color BackgroundColor { get; set; } = Color.FromArgb("#F0F0F0");
					public static Color HeaderBackgroundColor { get; set; } = Color.FromArgb("#E0E0E0");
				}
			}
			// --- Page layout ---
			public static class Page
			{
				public static Color BaseColor { get; set; } = Color.FromArgb("#c8e8f5");
				public static Color BackgroundColor { get; set; } = Color.FromArgb("#e9f6fb");
				// --- Header ---
				public static class Header
				{
					// --- Text ---
					public static String TextLeft { get; set; } = "";
					public static String TextRight { get; set; } = "";
					// --- Toolbar ---
					public static DisplayPosition ToolbarDisplay { get; set; } = Sam.DisplayPosition.None;
					public static bool Display_ToolbarItem_Back { get; set; } = false;
					// --- Styling ---
					public static Color BackgroundColor { get; set; } = Colors.Honeydew;
					public static Color BorderColor { get; set; } = Colors.LightSlateGray;
					public static double BorderStrokeWidthTop { get; set; } = 2.0;
					public static double BorderStrokeWidthBottom { get; set; } = 1.0;
					public static Thickness Padding { get; set; } = new Thickness(8, 4);
				}
				// --- Caption ---
				public static class Caption
				{
					public static Color BackgroundColor { get; set; } = Color.FromArgb("#558395");
					public static double PaddingHorizontal { get; set; } = 4.0;
					public static double PaddingVertical { get; set; } = 8.0;
					public static Color TextColor { get; set; } = Color.FromArgb("#f8f8f8");
					public static double TextSizeRatio { get; set; } = 1.25;
				}
				// --- Navigation ---
				public static class Navigation
				{
					public static double BorderTopWidth { get; set; } = 0.75;
					public static double PaddingVertical { get; set; } = 4.0;
					public static Color BorderColor { get; set; } = Color.FromArgb("#808080");
					public static Color BackgroundColor { get; set; } = Color.FromArgb("#e9f6fb");
				}
				// --- Body ---
				public static class Body
				{
					public static double PaddingVerticalMin { get; set; } = 4.0;
					public static double PaddingHorizontalMin { get; set; } = 4.0;
				}
				// --- Footer ---
				public static class Footer
				{
					public static String TextLeft { get; set; } = "";
					public static String TextMiddle { get; set; } = "";
					public static String TextRight { get; set; } = "";
					public static String DateTimeFormat { get; set; } = "ddd d-MMM-yyyy HH:mm:ss";
					public static DisplayPosition DateTimeDisplay { get; set; } = DisplayPosition.None;
					public static Color BackgroundColor { get; set; } = Colors.Honeydew;
					public static Color BorderColor { get; set; } = Colors.LightSlateGray;
					public static double BorderStrokeWidthTop { get; set; } = 1.0;
					public static double BorderStrokeWidthBottom { get; set; } = 2.0;
					public static Thickness Padding { get; set; } = new Thickness(8, 4);
				}
			}
			// --- Fonts ---
			public static class Fonts
			{
				// Values are calculated from the current device dimensions and are not
				// copied from a mutable setting.
				// --- Dynamic font sizing ---
				public static string HtmlFontSize
				{
					get
					{
						if (SamApplication.MinDeviceDimensionPx > 2000) return "14pt";
						if (SamApplication.MinDeviceDimensionPx > 1600) return "13pt";
						if (SamApplication.MinDeviceDimensionPx > 1200) return "12pt";
						if (SamApplication.MinDeviceDimensionPx > 1000) return "11pt";
						return "10pt";
					}
				}
				public static double FontSizeRatio
				{
					get
					{
						if (SamApplication.MinDeviceDimensionPx > 2000) return 1.75;
						if (SamApplication.MinDeviceDimensionPx > 1600) return 1.50;
						if (SamApplication.MinDeviceDimensionPx > 1200) return 1.25;
						return 1.0;
					}
				}
			}
			// --- Data display visuals ---
			public static class Data
			{
				// --- Item list ---
				public static class ItemList
				{
					public static double HeaderBorderWidth { get; set; } = 2.0;
					public static float HeaderBorderRadius { get; set; } = 6.0f;
					public static Color HeaderBorderColor { get; set; } = Sam.Visuals.Application.Bar.BackgroundColor;
					public static Color HeaderBackgroundColor { get; set; } = Color.FromArgb("#F0F0F0");
				}
				// --- Associated items panel ---
				public static class AssociatedItems
				{
					public static Color CaptionBackgroundColor { get; set; } = Color.FromArgb("#becee4");
					public static Color CaptionTextColor { get; set; } = Color.FromArgb("#f8f8f8");
					public static double CaptionTextSizeRatio { get; set; } = 1.2;
					public static Color BackgroundColor { get; set; } = Color.FromArgb("#dbe4f0");
				}
			}
			// --- Form ---
			public static class Form
			{
				public static Color BackgroundColor { get; set; } = Color.FromArgb("#e9f6fb");
				public static double GridRowSpacing { get; set; } = 4.0;
				public static double GridColumnSpacing { get; set; } = 4.0;
				// --- Label ---
				public static class Label
				{
					public static Thickness Margin { get; set; } = new Thickness(8.0, 4.0, 8.0, 2.0);
				}
				// --- Controls ---
				public static class Controls
				{
					public static Thickness Padding { get; set; } = new Thickness(4.0, 2.0, 4.0, 1.0);
					public static Color BackgroundColor { get; set; } = Color.FromArgb("#F8F8F8");
					public static Color BorderColor { get; set; } = Color.FromArgb("#E0E0E0");
					public static double BorderWidth { get; set; } = 0.5;
					// --- Native behaviour modified by SamHandler ---
					public static bool NativeNoBorder { get; set; } = false;
					public static bool NativeNoUnderline { get; set; } = false;
					public static bool NativeBackgroundClear { get; set; } = false;
				}
				// --- Tab controls ---
				public static class TabControl
				{
					public static Color HeaderBackgroundColor { get; set; } = Colors.Transparent;
					public static Color CaptionBackgroundColor { get; set; } = Color.FromArgb("#E0E0E0");
					public static Color BodyBackgroundColor { get; set; } = Color.FromArgb("#F8F8F8");
					public static Thickness BodyPadding { get; set; } = new Thickness(4.0);
				}
			}
		}

		// --- The End ---
	}
}