ant-design-blazor/site/AntDesign.Docs/Services/IconListService.cs

using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace AntDesign.Docs.Services
{
    public class IconListService
    {
        private IList<IconItem> _icons;
        private readonly IconService _iconService;

        public IconListService(IconService iconService)
        {
            _iconService = iconService;
        }

        public IList<IconItem> GetIcons()
        {
            _icons ??= Icons();
            return _icons;
        }

        private IList<IconItem> Icons()
        {
            IList<IconItem> icons = new List<IconItem>();

            var item1 = new IconItem()
            {
                Category = "direction",
                IconNames = new List<string>
                    {
                        "step-backward",
                        "step-forward",
                        "fast-backward",
                        "fast-forward",
                        "shrink",
                        "arrows-alt",
                        "down",
                        "up",
                        "left",
                        "right",
                        "caret-up",
                        "caret-down",
                        "caret-left",
                        "caret-right",
                        "up-circle",
                        "down-circle",
                        "left-circle",
                        "right-circle",
                        "double-right",
                        "double-left",
                        "vertical-left",
                        "vertical-right",
                        "vertical-align-top",
                        "vertical-align-middle",
                        "vertical-align-bottom",
                        "forward",
                        "backward",
                        "rollback",
                        "enter",
                        "retweet",
                        "swap",
                        "swap-left",
                        "swap-right",
                        "arrow-up",
                        "arrow-down",
                        "arrow-left",
                        "arrow-right",
                        "play-circle",
                        "up-square",
                        "down-square",
                        "left-square",
                        "right-square",
                        "login",
                        "logout",
                        "menu-fold",
                        "menu-unfold",
                        "border-bottom",
                        "border-horizontal",
                        "border-inner",
                        "border-outer",
                        "border-left",
                        "border-right",
                        "border-top",
                        "border-verticle",
                        "pic-center",
                        "pic-left",
                        "pic-right",
                        "radius-bottomleft",
                        "radius-bottomright",
                        "radius-upleft",
                        "radius-upright",
                        "fullscreen",
                        "fullscreen-exit"
                    }
            };

            var item2 = new IconItem()
            {
                Category = "suggestion",
                IconNames = new List<string>
                    {
                        "question",
                        "question-circle",
                        "plus",
                        "plus-circle",
                        "pause",
                        "pause-circle",
                        "minus",
                        "minus-circle",
                        "plus-square",
                        "minus-square",
                        "info",
                        "info-circle",
                        "exclamation",
                        "exclamation-circle",
                        "close",
                        "close-circle",
                        "close-square",
                        "check",
                        "check-circle",
                        "check-square",
                        "clock-circle",
                        "warning",
                        "issues-close",
                        "stop"
                    }
            };

            var item3 = new IconItem()
            {
                Category = "editor",
                IconNames = new List<string>
                    {
                        "edit",
                        "form",
                        "copy",
                        "scissor",
                        "delete",
                        "snippets",
                        "diff",
                        "highlight",
                        "align-center",
                        "align-left",
                        "align-right",
                        "bg-colors",
                        "bold",
                        "italic",
                        "underline",
                        "strikethrough",
                        "redo",
                        "undo",
                        "zoom-in",
                        "zoom-out",
                        "font-colors",
                        "font-size",
                        "line-height",
                        "colum-height",
                        "colum-width",
                        "dash",
                        "small-dash",
                        "sort-ascending",
                        "sort-descending",
                        "drag",
                        "ordered-list",
                        "unordered-list",
                        "radius-setting",
                        "column-width"
                    }
            };

            var item4 = new IconItem()
            {
                Category = "data",
                IconNames = new List<string>
                    {
                        "area-chart",
                        "pie-chart",
                        "bar-chart",
                        "dot-chart",
                        "line-chart",
                        "radar-chart",
                        "heat-map",
                        "fall",
                        "rise",
                        "stock",
                        "box-plot",
                        "fund",
                        "sliders"
                    }
            };

            var item5 = new IconItem()
            {
                Category = "logo",
                IconNames = new List<string>
                    {
                        "android",
                        "apple",
                        "windows",
                        "ie",
                        "chrome",
                        "github",
                        "aliwangwang",
                        "dingding",
                        "weibo-square",
                        "weibo-circle",
                        "taobao-circle",
                        "html5",
                        "weibo",
                        "twitter",
                        "wechat",
                        "youtube",
                        "alipay-circle",
                        "taobao",
                        "skype",
                        "qq",
                        "medium-workmark",
                        "gitlab",
                        "medium",
                        "linkedin",
                        "google-plus",
                        "dropbox",
                        "facebook",
                        "codepen",
                        "code-sandbox",
                        "code-sandbox-circle",
                        "amazon",
                        "google",
                        "codepen-circle",
                        "alipay",
                        "ant-design",
                        "ant-cloud",
                        "aliyun",
                        "zhihu",
                        "slack",
                        "slack-square",
                        "behance",
                        "behance-square",
                        "dribbble",
                        "dribbble-square",
                        "instagram",
                        "yuque",
                        "alibaba",
                        "yahoo",
                        "reddit",
                        "sketch"
                    }
            };

            var item6 = new IconItem()
            {
                Category = "other",
                IconNames = (List<string>)GetOtherItems()
            };
            //remove the exist icon from existed catogory if duplicated
            var it1 = item6.IconNames.RemoveAll(it => item5.IconNames.Contains(it));
            var it2 = item6.IconNames.RemoveAll(it => item4.IconNames.Contains(it));
            var it3 = item6.IconNames.RemoveAll(it => item3.IconNames.Contains(it));
            var it4 = item6.IconNames.RemoveAll(it => item2.IconNames.Contains(it));
            var it5 = item6.IconNames.RemoveAll(it => item1.IconNames.Contains(it));

            icons.Add(item1);
            icons.Add(item2);
            icons.Add(item3);
            icons.Add(item4);
            icons.Add(item5);
            icons.Add(item6);

            return icons;
        }

        private IList<string> GetOtherItems()
        {
            List<string> icons = new List<string>();

            IDictionary<string, string[]> iconfiles = _iconService.GetAllIcons();

            foreach (var item in iconfiles)
            {
                icons.AddRange(item.Value);
            }

            return icons.Distinct().OrderBy(x => x).ToList();
        }

        public List<IconItem> Search(string word)
        {
            var listOfIcons = GetIcons();
            List<IconItem> lstNewIcons = new List<IconItem>();

            foreach (var item in listOfIcons)
            {
                var icons = item.IconNames.FindAll(a => a.ToLower().Contains(word));
                if (icons?.Count == 0) continue;

                lstNewIcons.Add(new IconItem
                {
                    Category = item.Category,
                    IconNames = icons
                });
            }

            return lstNewIcons;
        }
    }

    public class IconItem
    {
        public string Category { get; set; }
        public List<string> IconNames { get; set; }
    }
}