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

namespace MsgCenterClient.WechatMpTplMsg
{
    public class MiniAppMsgBase
    {
        /// <summary>
        /// 
        /// </summary>
        /// <param name="templateId">模板Id</param>
        /// <param name="ownerId">物业Id</param>
        /// <param name="appId">公众号AppId</param>
        /// <param name="openId">用户OpenId</param>
        public MiniAppMsgBase(string templateId, int ownerId, string appId, string openId)
        {
            TemplateId = templateId;
            OwnerId = ownerId;
            AppId = appId;
            OpenId = openId;
        }

        /// <summary>
        /// 模板Id
        /// </summary>
        public string TemplateId { get; }

        /// <summary>
        /// 物业Id
        /// </summary>
        public int OwnerId { get; }

        /// <summary>
        /// 公众号AppId
        /// </summary>
        public string AppId { get; }

        /// <summary>
        /// 用户openId
        /// </summary>
        public string OpenId { get; }

        /// <summary>
        /// 跳转的小程序页面
        /// </summary>       
        public string Page { get; set; }

        /// <summary>
        /// 表单id
        /// </summary>
        public string FormId { get; set; }

        /// <summary>
        /// 强调的字，可以为空
        /// </summary>
        public string EmphasisKeyword { get; set; }

        public object ToRequestObject()
        {
            SortedDictionary<int, DataItem> bodyDic = new SortedDictionary<int, DataItem>();

            var type = GetType();
            var properties = type.GetProperties();

            foreach (var property in properties)
            {
                var bodyAttr = property.GetCustomAttributes(typeof(DataBodyAttribute), false);

                if (!bodyAttr.Any())
                {
                    continue;
                }

                int order = ((DataBodyAttribute) bodyAttr[0]).Order;

                DataItem value = property.GetValue(this, null) as DataItem;

                if (value == null)
                {
                    value = new DataItem();
                }

                bodyDic[order] = value;
            }

            return new
            {              
                key = TemplateId,
                OwnerId = OwnerId,
                From = AppId,
                To = OpenId,
                Content = new
                {
                    page=this.Page,
                    form_id=this.FormId,
                    emphasis_keyword=this.EmphasisKeyword,
                    items = bodyDic.Values.Select(t => new {value = t.Value, color = t.Color}).ToList()
                }               
            };
        }
    }
}