using Dapper;
using FSO.Common.Enum;
using FSO.Server.Common;
using FSO.Server.Database.DA.Roommates;
using FSO.Server.Database.DA.Utils;
using System;
using System.Collections.Generic;
using System.Linq;

namespace FSO.Server.Database.DA.Lots
{
    public class SqlLots : AbstractSqlDA, ILots
    {
        public SqlLots(ISqlContext context) : base(context){
        }

        public DbLot Get(int id){
            return Context.Connection.Query<DbLot>("SELECT * FROM fso_lots WHERE lot_id = @id", new { id = id }).FirstOrDefault();
        }
        public List<DbLot> GetMultiple(int[] id)
        {
            String inClause = "IN (";
            for (int i = 0; i < id.Length; i++)
            {
                inClause = inClause + "'" + id.ElementAt(i) + "'" + ",";
            }
            inClause = inClause.Substring(0, inClause.Length - 1);
            inClause = inClause + ")";

            return Context.Connection.Query<DbLot>(
                "SELECT * FROM fso_lots WHERE lot_id " + inClause
            ).ToList();
        }

        public List<DbLot> Get(IEnumerable<int> ids)
        {
            return Context.Connection.Query<DbLot>("SELECT * FROM fso_lots WHERE lot_id in @ids", new { ids = ids }).ToList();
        }

        /// <summary>
        /// Special. We need to create the lot and assign an owner level roommate entry immediately, so we need to use a transaction.
        /// </summary>
        /// <param name="lot"></param>
        /// <returns></returns>
        public uint Create(DbLot lot)
        {
            string failReason = "NAME";
            var t = Context.Connection.BeginTransaction();
            try
            {
                var result = (uint)Context.Connection.Query<int>("INSERT INTO fso_lots (shard_id, name, description, " +
                                        "owner_id, location, neighborhood_id, created_date, category_change_date, category, buildable_area) " +
                                        " VALUES (@shard_id, @name, @description, @owner_id, @location, " +
                                        " @neighborhood_id, @created_date, @category_change_date, @category, @buildable_area); SELECT LAST_INSERT_ID();", new
                                        {
                                            shard_id = lot.shard_id,
                                            name = lot.name,
                                            description = lot.description,
                                            owner_id = lot.owner_id,
                                            location = lot.location,
                                            neighborhood_id = lot.neighborhood_id,
                                            created_date = lot.created_date,
                                            category_change_date = lot.category_change_date,
                                            category = lot.category.ToString(),
                                            buildable_area = lot.buildable_area
                                        }).First();
                failReason = "NHOOD";
                UpdateNeighborhood((int)result);
                if (lot.category != LotCategory.community)
                {
                    failReason = "ROOMIE";
                    var roomie = new DbRoommate()
                    {
                        avatar_id = lot.owner_id ?? 0,
                        is_pending = 0,
                        lot_id = (int)result,
                        permissions_level = 2
                    };
                    var result2 = Context.Connection.Execute("INSERT INTO fso_roommates (avatar_id, lot_id, permissions_level, is_pending) " +
                        " VALUES (@avatar_id, @lot_id, @permissions_level, @is_pending);", roomie) > 0;
                    if (result2)
                    {
                        t.Commit();
                        return result;
                    }
                } else
                {
                    t.Commit();
                    return result;
                }
            } catch (Exception)
            {
            }
            t.Rollback();
            throw new Exception(failReason);
        }

        public bool Delete(int id)
        {
            return Context.Connection.Execute("DELETE FROM fso_lots WHERE lot_id = @id", new { id = id }) > 0;
        }

        public DbLot GetByOwner(uint owner_id)
        {
            return Context.Connection.Query<DbLot>("SELECT * FROM fso_lots WHERE owner_id = @id AND category != 'community'", new { id = owner_id }).FirstOrDefault();
        }

        public IEnumerable<DbLot> All(int shard_id)
        {
            return Context.Connection.Query<DbLot>("SELECT * FROM fso_lots WHERE shard_id = @shard_id", new { shard_id = shard_id });
        }
        public PagedList<DbLot> AllByPage(int shard_id, int offset = 1, int limit = 100, string orderBy = "lot_id")
        {
            var total = Context.Connection.Query<int>("SELECT COUNT(*) FROM fso_lots WHERE shard_id = @shard_id", new { shard_id = shard_id }).FirstOrDefault();
            var results = Context.Connection.Query<DbLot>("SELECT * FROM fso_lots WHERE shard_id = @shard_id ORDER BY @order DESC LIMIT @offset, @limit", new { shard_id = shard_id, order = orderBy, offset = offset, limit = limit });
            return new PagedList<DbLot>(results, offset, total);
        }

        public List<DbLot> AllLocations(int shard_id)
        {
            return Context.Connection.Query<DbLot>("SELECT location, name FROM fso_lots WHERE shard_id = @shard_id", new { shard_id = shard_id }).ToList();
        }

        public List<uint> GetLocationsInNhood(uint nhood_id)
        {
            return Context.Connection.Query<uint>("SELECT location FROM fso_lots WHERE neighborhood_id = @nhood_id", new { nhood_id = nhood_id }).ToList();
        }

        public List<uint> GetCommunityLocations(int shard_id)
        {
            return Context.Connection.Query<uint>("SELECT location FROM fso_lots WHERE shard_id = @shard_id AND (category = 'community' OR category = 'recent')", new { shard_id = shard_id }).ToList();
        }

        public List<string> AllNames(int shard_id)
        {
            return Context.Connection.Query<string>("SELECT name FROM fso_lots WHERE shard_id = @shard_id", new { shard_id = shard_id }).ToList();
        }

        public DbLot GetByName(int shard_id, string name)
        {
            return Context.Connection.Query<DbLot>("SELECT * FROM fso_lots WHERE name = @name AND shard_id = @shard_id", new { name, shard_id = shard_id }).FirstOrDefault();
        }

        public DbLot GetByLocation(int shard_id, uint location)
        {
            return Context.Connection.Query<DbLot>("SELECT * FROM fso_lots WHERE location = @location AND shard_id = @shard_id", new { location = location, shard_id = shard_id }).FirstOrDefault();
        }
 
        public List<DbLot> GetAdjToLocation(int shard_id, uint location)
        {
            return Context.Connection.Query<DbLot>("SELECT * FROM fso_lots WHERE "
                + "(ABS(CAST((location&65535) AS SIGNED) - CAST((@location&65535) AS SIGNED)) = 1 OR ABS(CAST((location/65536) AS SIGNED) - CAST((@location/65536) AS SIGNED)) = 1) "
                + "AND shard_id = @shard_id AND move_flags = 0", new { location = location, shard_id = shard_id }).ToList();
        }

        public void RenameLot(int id, string newName)
        {
            Context.Connection.Query("UPDATE fso_lots SET name = @name WHERE lot_id = @id", new { name = newName, id = id });
        }

        public void SetDirty(int id, byte dirty)
        {
            if (dirty == 0)
            {
                Context.Connection.Query("UPDATE fso_lots SET thumb3d_dirty = @dirty, thumb3d_time = @time WHERE lot_id = @id", new { time = Epoch.Now, dirty = dirty, id = id });
            } else
            {
                Context.Connection.Query("UPDATE fso_lots SET thumb3d_dirty = @dirty WHERE lot_id = @id", new { dirty = dirty, id = id });
            }
        }

        public DbLot Get3DWork()
        {
            var item = Context.Connection.Query<DbLot>("SELECT * FROM fso_lots WHERE thumb3d_dirty = 1 AND thumb3d_time < @time ORDER BY thumb3d_time LIMIT 1", new { time = Epoch.Now - 300 }).FirstOrDefault();
            if (item != null)
            {
                SetDirty(item.lot_id, 0);
            }
            return item;
        }

        public List<DbLot> SearchExact(int shard_id, string name, int limit)
        {
            return Context.Connection.Query<DbLot>(
                "SELECT lot_id, location, name FROM fso_lots WHERE shard_id = @shard_id AND name = @name LIMIT @limit",
                new { shard_id = shard_id, name = name, limit = limit }
            ).ToList();
        }

        public List<DbLot> SearchWildcard(int shard_id, string name, int limit)
        {
            name = name
                .Replace("!", "!!")
                .Replace("%", "!%")
                .Replace("_", "!_")
                .Replace("[", "!["); //must sanitize format...
            return Context.Connection.Query<DbLot>(
                "SELECT lot_id, location, name FROM fso_lots WHERE shard_id = @shard_id AND name LIKE @name LIMIT @limit",
                new { shard_id = shard_id, name = "%" + name + "%", limit = limit }
            ).ToList();
        }

        public void UpdateRingBackup(int lot_id, sbyte ring_backup_num)
        {
            Context.Connection.Query("UPDATE fso_lots SET ring_backup_num = @ring_backup_num, move_flags = 0 WHERE lot_id = @id", 
                new { ring_backup_num = ring_backup_num, id = lot_id });
        }


        public void CreateLotServerTicket(DbLotServerTicket ticket)
        {
            Context.Connection.Execute("INSERT INTO fso_lot_server_tickets VALUES (@ticket_id, @user_id, @date, @ip, @avatar_id, @lot_id, @avatar_claim_id, @avatar_claim_owner, @lot_owner)", ticket);
        }

        public void DeleteLotServerTicket(string id)
        {
            Context.Connection.Execute("DELETE FROM fso_lot_server_tickets WHERE ticket_id = @ticket_id", new { ticket_id = id });
        }

        public DbLotServerTicket GetLotServerTicket(string id)
        {
            return Context.Connection.Query<DbLotServerTicket>("SELECT * FROM fso_lot_server_tickets WHERE ticket_id = @ticket_id", new { ticket_id = id }).FirstOrDefault();
        }

        public List<DbLotServerTicket> GetLotServerTicketsForClaimedAvatar(int claim_id)
        {
            return Context.Connection.Query<DbLotServerTicket>("SELECT * FROM fso_lot_server_tickets WHERE avatar_claim_id = @claim_id", new { claim_id = claim_id }).ToList();
        }

        public void UpdateDescription(int lot_id, string description)
        {
            Context.Connection.Query("UPDATE fso_lots SET description = @desc WHERE lot_id = @id", new { id = lot_id, desc = description });
        }

        public void UpdateOwner(int lot_id, uint? avatar_id)
        {
            Context.Connection.Query("UPDATE fso_lots SET owner_id = @owner_id WHERE lot_id = @id", new { id = lot_id, owner_id = avatar_id });
        }

        public void ReassignOwner(int lot_id)
        {
            Context.Connection.Query("UPDATE fso_lots SET owner_id = (SELECT avatar_id FROM fso_roommates WHERE is_pending = 0 AND lot_id = @id LIMIT 1) WHERE lot_id = @id", new { id = lot_id });
            Context.Connection.Query("UPDATE fso_roommates SET permissions_level = 2 WHERE avatar_id = (SELECT owner_id FROM fso_lots WHERE lot_id = @id LIMIT 1) AND lot_id = @id", new { id = lot_id });
        }

        public void UpdateLotSkillMode(int lot_id, uint skillMode)
        {
            Context.Connection.Query("UPDATE fso_lots SET skill_mode = @skillMode WHERE lot_id = @id",
                new { id = lot_id, skillMode = skillMode });
        }

        public void UpdateLotCategory(int lot_id, LotCategory category, uint skillMode)
        {
            Context.Connection.Query("UPDATE fso_lots SET category = @category, category_change_date = @time, skill_mode = @skillMode WHERE lot_id = @id", 
                new { id = lot_id, category = category.ToString(), time = Epoch.Now, skillMode = skillMode });
        }

        public void UpdateLotAdmitMode(int lot_id, byte admit_mode)
        {
            Context.Connection.Query("UPDATE fso_lots SET admit_mode = @admit_mode WHERE lot_id = @id", new { id = lot_id, admit_mode = admit_mode });
        }

        public bool UpdateLocation(int lot_id, uint location, bool startFresh)
        {
            var success = Context.Connection.Execute("UPDATE fso_lots SET location = @location, move_flags = @move WHERE lot_id = @id", new { id = lot_id, location = location, move = (byte)(startFresh?2:1) }) > 0;
            if (success)
                UpdateNeighborhood(lot_id);
            return success;
        }

        private static string NHoodQuery = 
                "UPDATE fso.fso_lots l " +
                "SET neighborhood_id = " +
                "COALESCE((SELECT neighborhood_id " +
                "FROM fso.fso_neighborhoods n " +
                "ORDER BY(POWER(((l.location & 65535) + 0.0) - ((n.location & 65535) + 0.0), 2) + " +
                "POWER((FLOOR(l.location / 65536) + 0.0) - (FLOOR(n.location / 65536) + 0.0), 2)) " +
                "LIMIT 1), 0) ";

        public int UpdateAllNeighborhoods(int shard_id)
        {
            return Context.Connection.Execute(
                NHoodQuery +
                "WHERE l.shard_id = @shard_id"
                , new { shard_id = shard_id });
        }

        public bool UpdateNeighborhood(int lot_id)
        {
            return (Context.Connection.Execute(
                NHoodQuery +
                "WHERE l.lot_id = @lot_id"
                , new { lot_id = lot_id })) > 0;
        }
    }
}