using System;
using System.ComponentModel.DataAnnotations.Schema;
using System.Linq;
using SimApi.Helpers;

namespace SimApi.Models;

public class SimApiBaseModel
{
    [Column(Order = 1)]
    public string Id { get; set; } = Guid.NewGuid().ToString();

    [Column(Order = 9998)]
    public DateTime UpdatedAt { get; set; } = SimApiUtil.CstNow;

    [Column(Order = 9999)]
    public DateTime CreatedAt { get; set; } = SimApiUtil.CstNow;

    protected virtual string[] MapperIgnoreField { get; set; } = { "Id", "CreatedAt", "UpdatedAt" };

    protected virtual string UpdatedTimeField { get; set; } = "UpdatedAt";

    public void MapData<TS>(TS source, bool mapAll = false)
    {
        //获取要赋值的源数据不为null的项目
        var sourceProps = source.GetType().GetProperties().Where(x => x.GetValue(source) != null)
            .Select(x => new
            {
                x.Name,
                x.PropertyType
            })
            .ToDictionary(x => x.Name, x => x.PropertyType);

        //获取目标对象的属性信息
        var targetProps = GetType().GetProperties().Select(x => new
            {
                x.Name,
                x.PropertyType
            })
            .ToDictionary(x => x.Name, x => x.PropertyType);
        foreach (var sp in sourceProps.Where(sp =>
                     targetProps.ContainsKey(sp.Key) && sp.Value == targetProps[sp.Key] &&
                     (!MapperIgnoreField.Contains(sp.Key) || mapAll)))
        {
            GetType().GetProperty(sp.Key)?
                .SetValue(this, source.GetType().GetProperty(sp.Key)?.GetValue(source));
        }

        UpdateTime();
    }

    public void MapData<TS>(TS source, string[] mapFields)
    {
        //获取要赋值的源数据不为null的项目
        var sourceProps = source.GetType().GetProperties().Where(x => x.GetValue(source) != null)
            .Select(x => new
            {
                x.Name,
                x.PropertyType
            })
            .ToDictionary(x => x.Name, x => x.PropertyType);

        //获取目标对象的属性信息
        var targetProps = GetType().GetProperties().Select(x => new
            {
                x.Name,
                x.PropertyType
            })
            .ToDictionary(x => x.Name, x => x.PropertyType);
        foreach (var sp in sourceProps.Where(sp =>
                     targetProps.ContainsKey(sp.Key) && sp.Value == targetProps[sp.Key] &&
                     mapFields.Contains(sp.Key)))
        {
            GetType().GetProperty(sp.Key)?
                .SetValue(this, source.GetType().GetProperty(sp.Key)?.GetValue(source));
        }

        UpdateTime();
    }

    /// <summary>
    /// 更新update时间
    /// </summary>
    /// <returns></returns>
    public void UpdateTime()
    {
        GetType().GetProperty(UpdatedTimeField)?.SetValue(this, SimApiUtil.CstNow);
    }
}