using System;
using System.Collections.Generic;
using System.Linq;

using Spectre.Console;

namespace SpectreConsoleStudy.Shared
{
    /// <summary>
    /// 执行器
    /// </summary>
    public class SpectreConsoleRunner
    {
        private static List<Menu> Menus = new List<Menu>()
        {
            new Menu("入门示例",100,"入门示例",0,Hello),

            new Menu("提示组件",1,"文本提示",1,Hello),
            new Menu("提示组件",1,"选择",2,Hello),
            new Menu("提示组件",1,"多选",3,Hello),

            new Menu("实时组件",20,"实时展示",1,Hello),
            new Menu("实时组件",20,"进度条",2,Hello),
            new Menu("实时组件",20,"状态条",3,UseStatus.Run),

            new Menu("小组件",30,"面板",1,Hello),
            new Menu("小组件",30,"桌面",2,Hello),
            new Menu("小组件",30,"日历",3,Hello),
            new Menu("小组件",30,"网格",4,Hello),
            new Menu("小组件",30,"布局",5,Hello),

            new Menu("符录",40,"颜色",10,Hello),
            new Menu("符录",40,"风格",0,Hello),
            new Menu("符录",40,"边框",0,Hello),
            new Menu("符录",40,"微调器",0,Hello),
        };

        /// <summary>
        /// 启动执行
        /// </summary>
        public static void Run()
        {
            Welcome();

            RunMenu();
        }

        /// <summary>
        /// 欢迎信息
        /// </summary>
        public static void Welcome()
        {
            var hello = new Panel("此为开源多彩控制台项目：[red] Spectre.Console [/]的学习、演示程序。请选择模块，查询效果。")
            .Header(new PanelHeader("[yellow3]  多彩控制台，[/][red]欢迎您  [/]", Justify.Center))
            .Border(BoxBorder.Ascii)
            .BorderStyle(Style.Parse("green"))
            .Padding(new Padding(2, 1))
            .Expand()
            ;

            AnsiConsole.Write(hello);
            AnsiConsole.WriteLine();
        }

        /// <summary>
        /// 执行菜单
        /// </summary>
        public static void RunMenu()
        {
            //声明多选
            var multiSelect = new MultiSelectionPrompt<Menu>()
                   .PageSize(15)
                   //.Title("您想运行哪些 [green]示例[/] ?")
                   //.MoreChoicesText("[grey](按上下键以显示更选项)[/]")
                   .InstructionsText("[grey](按 [blue]<space> 键[/] 切换选中状态, 按[green]<enter> 键[/] 执行选择项)[/]");

            //添加选项
            var menuGroups = Menus.OrderByDescending(x => x.GroupOrder).GroupBy(x => x.Group);
            foreach (var group in menuGroups)
            {
                int itemNuber = group.Count();
                if (itemNuber == 1)
                {
                    multiSelect.AddChoice(group.First());
                }
                else if (itemNuber > 1)
                {
                    var menuList = group.OrderByDescending(x => x.Order).ToList();
                    var firstMenu = menuList.First();
                    multiSelect.AddChoiceGroup(firstMenu, menuList);
                }
            }

            //展示
            var menus = AnsiConsole.Prompt(multiSelect);

            //执行选中项
            foreach (var menu in menus)
            {
                menu?.Runner(menu);
            }
        }

        /// <summary>
        /// 执行模块(start)
        /// </summary>
        /// <param name="menu"></param>
        private static void Hello(Menu menu)
        {
            Rule rule = new Rule(menu.ToString());
            AnsiConsole.Write(rule);
            AnsiConsole.WriteLine();
        }
    }
}