using System;
using System.Collections.Generic;
using System.Web;

namespace Web12306.Models
{
	using System.Data.Entity;
	using System.Linq;
	using Web12306.Models.Entity;

	public class ChatRoomDb : DbContext
	{
		public ChatRoomDb()
			: base("chatroom")
		{

			//I want this:
			//AbuseReports.FirstOrDefault();

			
		}

		/// <summary>
		/// This method is called when the model for a derived context has been initialized, but
		///             before the model has been locked down and used to initialize the context.  The default
		///             implementation of this method does nothing, but it can be overridden in a derived class
		///             such that the model can be further configured before it is locked down.
		/// </summary>
		/// <remarks>
		/// Typically, this method is called only once when the first instance of a derived context
		///             is created.  The model for that context is then cached and is for all further instances of
		///             the context in the app domain.  This caching can be disabled by setting the ModelCaching
		///             property on the given ModelBuidler, but note that this can seriously degrade performance.
		///             More control over caching is provided through use of the DbModelBuilder and DbContextFactory
		///             classes directly.
		/// </remarks>
		/// <param name="modelBuilder">The builder that defines the model for the context being created. </param>
		protected override void OnModelCreating(DbModelBuilder modelBuilder)
		{
			base.OnModelCreating(modelBuilder);

			var cfg = modelBuilder.Configurations;
			cfg.Add(new AbuseReportConfiguration());
			cfg.Add(new ForbiddenUserConfiguration());
		}


		public DbSet<AbuseReport> AbuseReports { get; set; }

		public DbSet<ForbiddenUser> ForbiddenUsers { get; set; }

		public IList<AbuseReport> QueryAbuseReports(int type, int page, int? pagesize = null)
		{
			var offset = page > 1 ? (page - 1) * pagesize : 0;
			var sql = "SELECT * FROM message_abusereport WHERE 1=1 ";
			if (type != 0)
			{
				sql += " AND is_check=" + type;
			}
			sql += " ORDER BY ID DESC ";
			if (pagesize.HasValue)
			{
				sql += "LIMIT " + offset + "," + pagesize;
			}
			sql += ";";

			return Database.SqlQuery<AbuseReport>(sql).ToList();
		}

		public void MarkAllCheckedByReporter(string reporter)
		{
			Database.ExecuteSqlCommand("UPDATE `message_abusereport` set `is_check`=1 WHERE `reporting_account`='" + reporter + "'");
		}

		public void MarkAllCheckedByTarget(string reporter)
		{
			Database.ExecuteSqlCommand("UPDATE `message_abusereport` set `is_check`=1 WHERE `alleged_wrongdoer_account`='" + reporter + "'");
		}
	}
}