using System;
using System.Collections.Generic;
using System.Text.RegularExpressions;

namespace Masuit.Tools.Strings;

/// <summary>
/// 模版引擎
/// </summary>
public class Template
{
    private string Content { get; set; }

    /// <summary>
    /// 模版引擎
    /// </summary>
    /// <param name="content"></param>
    public Template(string content)
    {
        Content = content;
    }

    /// <summary>
    /// 创建模板
    /// </summary>
    /// <param name="content"></param>
    /// <returns></returns>
    public static Template Create(string content)
    {
        return new Template(content);
    }

    /// <summary>
    /// 设置变量
    /// </summary>
    /// <param name="key"></param>
    /// <param name="value"></param>
    /// <returns></returns>
    public Template Set(string key, string value)
    {
        Content = Content.Replace("{{" + key + "}}", value);
        return this;
    }

    /// <summary>
    /// 设置变量
    /// </summary>
    public Template Set(object obj)
    {
        var dic = obj.ToDictionary();
        Set(dic);
        return this;
    }

    /// <summary>
    /// 设置变量
    /// </summary>
    public Template Set(Dictionary<string, string> dic)
    {
        foreach (var x in dic)
        {
            Content = Content.Replace("{{" + x.Key + "}}", x.Value);
        }

        return this;
    }

    /// <summary>
    /// 设置变量
    /// </summary>
    public Template Set(Dictionary<string, object> dic)
    {
        foreach (var x in dic)
        {
            Content = Content.Replace("{{" + x.Key + "}}", x.Value.ToString());
        }

        return this;
    }

    /// <summary>
    /// 渲染模板
    /// </summary>
    /// <param name="check">是否检查未使用的模板变量</param>
    /// <returns></returns>
    public string Render(bool check = false)
    {
        if (check)
        {
            var mc = Regex.Matches(Content, @"\{\{.+?\}\}");
            foreach (Match m in mc)
            {
                throw new ArgumentException($"模版变量{m.Value}未被使用");
            }
        }

        return Content;
    }
}