using System;
using System.Collections.Generic;
using System.Linq;
using System.Linq.Expressions;
using Luticate2.Utils.DataAccess;
using Luticate2.Utils.Dbo.Filter;
using Microsoft.EntityFrameworkCore;
using WebApiWebSem.DataAccess.Models;
using WebApiWebSem.Dbo.Articles;

namespace WebApiWebSem.DataAccess
{
    public class ArticlesDataAccess : LuEfCrudDataAccess<articles, ArticlesAddDbo, ArticlesDbo, ArticlesEditDbo, WsDbContext, string>
    {
        protected static IList<string> Types = new List<string>{"persons", "locations", "countries"};

        public ArticlesDataAccess(IServiceProvider serviceProvider) : base(serviceProvider)
        {
        }

        protected override object GetId(string id)
        {
            return id;
        }

        protected override IQueryable<articles> GetGetQueryable(WsDbContext db, IQueryable<articles> table)
        {
            return table.Include(articles => articles.articles_fields_fk);
        }

        protected override DbSet<articles> GetTable(WsDbContext db)
        {
            return db.articles;
        }

        protected string GetFilterType(LuFilterDbo filter)
        {
            var type = filter.GetFilterString("type", null);
            if (type == null || !Types.Contains(type.ToLower()))
            {
                return null;
            }
            return type.ToLower();
        }

        protected override Expression<Func<articles, bool>> GetFilterExpression(LuFilterDbo filter)
        {
            var type = GetFilterType(filter);
            return articles => type == null || articles.type == type;
        }

        protected override articles GetModelFromTCreate(ArticlesAddDbo obj)
        {
            return new articles
            {
                id = obj.Id,
                picture_caption = obj.PictureCaption,
                picture_url = obj.PictureUrl,
                type = obj.Type,
                articles_fields_fk = obj.Fields.Select(dbo => new articles_fields
                {
                    property = dbo.Property,
                    type = dbo.Type,
                    value = dbo.Value
                }).ToList(),
                text = obj.Text
            };
        }

        protected override void EditModelFromTUpdate(ArticlesEditDbo obj, articles model)
        {
            model.picture_caption = obj.PictureCaption;
            model.picture_url = obj.PictureUrl;
            model.articles_fields_fk = obj.Fields.Select(dbo => new articles_fields
                {
                    value = dbo.Value,
                    property = dbo.Property,
                    type = dbo.Type
                }).ToList();
            model.text = obj.Text;
        }

        protected override ArticlesDbo GetDboFromModel(articles model)
        {
            return model.ToDbo();
        }
    }
}