using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.IO;
using System.Linq;
using System.Xml.Linq;

namespace YLPublishTool.Actions
{
    /// <summary>
    /// 配置文件
    /// </summary>
    [Description("配置文件")]
    class ConfigAction : IPublishAction
    {
        public string FilePath { get; set; }

        public string ReplaceContent { get; set; }

        public void Execute(IPublishContext context)
        {
            if (string.IsNullOrWhiteSpace(ReplaceContent))
            {
                return;
            }

            if (string.IsNullOrWhiteSpace(FilePath))
            {
                throw new Exception("文件路径未设置");
            }

            if (!File.Exists(FilePath))
            {
                throw new Exception("配置文件不存在:" + FilePath);
            }

            Console.WriteLine("替换配置文件:" + FilePath);

            var xml = string.Format("<?xml version=\"1.0\" encoding=\"utf-8\" ?>\n<root>\n{0}\n</root>\n", ReplaceContent);
            var xdoc = XDocument.Parse(xml);

            xml = File.ReadAllText(FilePath);
            var xdoc2 = XDocument.Parse(xml);

            var dic = new Dictionary<string, XElement>(StringComparer.OrdinalIgnoreCase);

            foreach (var xe in xdoc.Root.Elements())
            {
                dic[xe.Name.LocalName] = xe;
            }
            var arr = xdoc2.Root.Elements().ToArray();
            foreach (var xe in arr)
            {
                if (dic.TryGetValue(xe.Name.LocalName, out var xe1))
                {
                    xe.ReplaceWith(xe1);
                }
            }

            xdoc2.Root.Nodes().OfType<XComment>().Remove();

            xdoc2.Save(FilePath);
        }

        public void SetProperty(string name, string value)
        {
            switch (name?.ToLowerInvariant())
            {
                case "文件路径":
                case "filepath":
                    FilePath = value;
                    break;
                case "替换内容":
                    ReplaceContent = value;
                    break;
            }
        }
    }
}