using Microsoft.EntityFrameworkCore;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using System.Data.Common;

#nullable disable

namespace AsbCloudDb.Model
{
    //Scaffold-DbContext "Host=localhost;Database=postgres;Username=postgres;Password=q;Persist Security Info=True" Npgsql.EntityFrameworkCore.PostgreSQL -OutputDir Model -DataAnnotations
    public partial class AsbCloudDbContext : DbContext, IAsbCloudDbContext
    {
        public virtual DbSet<Cluster> Clusters { get; set; }
        public virtual DbSet<Company> Companies { get; set; }
        public virtual DbSet<DataSaubBase> DataSaubBases { get; set; }
        public virtual DbSet<Deposit> Deposits { get; set; }
        public virtual DbSet<FileCategory> FileCategories { get; set; }
        public virtual DbSet<FileInfo> Files { get; set; }
        public virtual DbSet<Measure> Measures { get; set; }
        public virtual DbSet<MeasureCategory> MeasureCategories { get; set; }
        public virtual DbSet<ReportProperty> ReportProperties { get; set; }
        public virtual DbSet<Telemetry> Telemetries { get; set; }
        public virtual DbSet<TelemetryAnalysis> TelemetryAnalysis { get; set; }
        public virtual DbSet<TelemetryEvent> TelemetryEvents { get; set; }
        public virtual DbSet<TelemetryMessage> TelemetryMessages { get; set; }
        public virtual DbSet<TelemetryUser> TelemetryUsers { get; set; }
        public virtual DbSet<User> Users { get; set; }
        public virtual DbSet<UserRole> UserRoles { get; set; }
        public virtual DbSet<Well> Wells { get; set; }
        public virtual DbSet<WellOperation> WellOperations { get; set; }
        public virtual DbSet<WellOperationCategory> TelemetryOperations { get; set; }
        public virtual DbSet<WellSectionType> WellSectionTypes { get; set; }
        public virtual DbSet<WellType> WellTypes { get; set; }

        //var options = new DbContextOptionsBuilder<AsbCloudDbContext>()
        //    .UseNpgsql("Host=localhost;Database=postgres;Username=postgres;Password=q;Persist Security Info=True")
        //    .Options;
        //var context = new AsbCloudDbContext(options);

        public AsbCloudDbContext() : base()
        { }

        public AsbCloudDbContext(DbContextOptions<AsbCloudDbContext> options)
            : base(options)
        { }

        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
        {
            if (!optionsBuilder.IsConfigured)
                optionsBuilder.UseNpgsql("Host=localhost;Database=postgres;Username=postgres;Password=q;Persist Security Info=True");
        }

        protected override void OnModelCreating(ModelBuilder modelBuilder)
        {
            modelBuilder.HasPostgresExtension("adminpack")
                .HasAnnotation("Relational:Collation", "Russian_Russia.1251");

            modelBuilder.Entity<Cluster>(entity =>
            {
                entity.HasOne(d => d.Deposit)
                    .WithMany(p => p.Clusters)
                    .HasForeignKey(d => d.IdDeposit)
                    .HasConstraintName("t_cluster_t_deposit_id_fk");
            });

            modelBuilder.Entity<DataSaubBase>(entity =>
            {
                entity.HasOne(d => d.Telemetry)
                    .WithMany(p => p.DataSaubBases)
                    .HasForeignKey(d => d.IdTelemetry)
                    .OnDelete(DeleteBehavior.ClientSetNull)
                    .HasConstraintName("t_data_saub_base_t_telemetry_id_fk");
            });

            modelBuilder.Entity<TelemetryMessage>(entity =>
            {
                entity.HasOne(d => d.Telemetry)
                    .WithMany(p => p.Messages)
                    .HasForeignKey(d => d.IdTelemetry)
                    .HasConstraintName("t_messages_t_telemetry_id_fk");
            });

            modelBuilder.Entity<TelemetryUser>(entity =>
            {
                entity.HasKey(nameof(TelemetryUser.IdTelemetry), nameof(TelemetryUser.IdUser));
                entity.HasOne(d => d.Telemetry)
                    .WithMany(p => p.Users)
                    .HasForeignKey(d => d.IdTelemetry)
                    .OnDelete(DeleteBehavior.ClientSetNull)
                    .HasConstraintName("t_telemetry_user_t_telemetry_id_fk");
            });

            modelBuilder.Entity<TelemetryAnalysis>(entity =>
            {
                entity.HasOne(d => d.Telemetry)
                    .WithMany(p => p.Analysis)
                    .HasForeignKey(d => d.IdTelemetry)
                    .HasConstraintName("t_analysis_t_telemetry_id_fk");

                entity.HasOne(d => d.Operation)
                    .WithMany(p => p.Analysis)
                    .HasForeignKey(d => d.IdOperation)
                    .OnDelete(DeleteBehavior.SetNull)
                    .HasConstraintName("t_analysis_t_operation_id_fk");
            });

            modelBuilder.Entity<TelemetryEvent>(entity =>
            {
                entity.HasKey(nameof(TelemetryEvent.IdTelemetry), nameof(TelemetryEvent.IdEvent));
                entity.HasOne(d => d.Telemetry)
                    .WithMany(p => p.Events)
                    .HasForeignKey(d => d.IdTelemetry)
                    .HasConstraintName("t_event_t_telemetry_id_fk");
            });

            modelBuilder.Entity<User>(entity =>
            {
                entity.HasOne(d => d.Company)
                    .WithMany(p => p.Users)
                    .HasForeignKey(d => d.IdCompany)
                    .HasConstraintName("t_user_t_company_id_fk");

                entity.HasIndex(d => d.Login)
                    .IsUnique();
            });

            modelBuilder.Entity<Well>(entity =>
            {
                entity.HasOne(d => d.Cluster)
                    .WithMany(p => p.Wells)
                    .HasForeignKey(d => d.IdCluster)
                    .HasConstraintName("t_well_t_cluster_id_fk");

                entity.HasOne(d => d.Telemetry)
                    .WithOne(p => p.Well)
                    .HasForeignKey<Well>(d => d.IdTelemetry)
                    .HasConstraintName("t_well_t_telemetry_id_fk");
            });

            modelBuilder.Entity<RelationCompanyWell>(entity =>
            {

                entity.HasKey(nameof(RelationCompanyWell.IdCompany), nameof(RelationCompanyWell.IdWell));

                entity.HasOne(r => r.Well)
                    .WithMany(w => w.RelationCompaniesWells)
                    .HasForeignKey(r => r.IdWell)
                    .HasConstraintName("t_relation_company_well_t_well_id_fk");

                entity.HasOne(r => r.Company)
                    .WithMany(w => w.RelationCompaniesWells)
                    .HasForeignKey(r => r.IdCompany)
                    .HasConstraintName("t_relation_company_well_t_company_id_fk");
            });

            modelBuilder.Entity<WellOperation>(entity =>
            {
                entity.HasIndex(d => d.WellDepth);
                entity.HasIndex(d => d.StartDate);
            });

            FillData(modelBuilder);
        }

        private static void FillData(ModelBuilder modelBuilder)
        {
            modelBuilder.Entity<UserRole>(entity =>
            {
                entity.HasData(new List<UserRole>{
                    new UserRole{ Id = 1, Caption = "Администратор", },
                    new UserRole{ Id = 2, Caption = "Пользователь", },
                });
            });

            modelBuilder.Entity<User>(entity =>
            {
                entity.HasData(new List<User>{
                    new User{
                        Id = 1,
                        IdCompany = 1,
                        IdRole = 1,
                        Level = int.MaxValue,
                        Login = "dev",
                        PasswordHash = "Vlcj|4fa529103dde7ff72cfe76185f344d4aa87931f8e1b2044e8a7739947c3d18923464eaad93843e4f809c5e126d013072", // dev
                        Name = "Разработчик",
                    },
                });
            });

            modelBuilder.Entity<Company>(entity =>
            {
                entity.HasData(new List<Company>{
                    new Company{ Id = 1, Caption = "ООО \"АСБ\"", IdCompanyType = 3},
                });
            });

            modelBuilder.Entity<WellOperationCategory>(entity =>
            {
                entity.HasData(new List<WellOperationCategory> {
                    // Автоматически опеределяемые операции
                    new WellOperationCategory {Id = 1, Name = "Невозможно определить операцию", Code = 0},
                    new WellOperationCategory {Id = 2, Name = "Роторное бурение", Code = 0 },
                    new WellOperationCategory {Id = 3, Name = "Слайдирование", Code = 0 },
                    new WellOperationCategory {Id = 4, Name = "Подъем с проработкой", Code = 0 },
                    new WellOperationCategory {Id = 5, Name = "Спуск с проработкой", Code = 0 },
                    new WellOperationCategory {Id = 6, Name = "Подъем с промывкой", Code = 0 },
                    new WellOperationCategory {Id = 7, Name = "Спуск с промывкой", Code = 0 },
                    new WellOperationCategory {Id = 8, Name = "Спуск в скважину", Code = 0 },
                    new WellOperationCategory {Id = 9,  Name = "Спуск с вращением", Code = 0 },
                    new WellOperationCategory {Id = 10, Name = "Подъем из скважины", Code = 0 },
                    new WellOperationCategory {Id = 11, Name = "Подъем с вращением", Code = 0 },
                    new WellOperationCategory {Id = 12, Name = "Промывка в покое", Code = 0 },
                    new WellOperationCategory {Id = 13, Name = "Промывка с вращением", Code = 0 },
                    new WellOperationCategory {Id = 14, Name = "Удержание в клиньях", Code = 0 },
                    new WellOperationCategory {Id = 15, Name = "Неподвижное состояние", Code = 0 },
                    new WellOperationCategory {Id = 16, Name = "Вращение без циркуляции", Code = 0 },
                    new WellOperationCategory {Id = 17, Name = "На поверхности", Code = 0 },
                    // Операции ручного ввода
                    new WellOperationCategory {Id = 1001, Name = "Бурение в интервале", Code = 0 },
                    new WellOperationCategory {Id = 1002, Name = "ГИС", Code = 0 },
                    new WellOperationCategory {Id = 1003, Name = "ГФР", Code = 0 },
                    new WellOperationCategory {Id = 1004, Name = "Монтаж ПВО", Code = 0 },
                    new WellOperationCategory {Id = 1005, Name = "Демонтаж ПВО", Code = 0 },
                    new WellOperationCategory {Id = 1006, Name = "Установка ФА", Code = 0 },
                    new WellOperationCategory {Id = 1007, Name = "Оборудование устья", Code = 0 },
                    new WellOperationCategory {Id = 1008, Name = "ОЗЦ", Code = 0 },
                    new WellOperationCategory {Id = 1009, Name = "Оборудование устья", Code = 0 },
                    new WellOperationCategory {Id = 1010, Name = "ОЗЦ", Code = 0 },
                    new WellOperationCategory {Id = 1011, Name = "Начало цикла строительства скважины", Code = 0 },
                    new WellOperationCategory {Id = 1012, Name = "Окончание цикла строительства скважины", Code = 0 },
                    new WellOperationCategory {Id = 1013, Name = "Опрессовка ПВО", Code = 0 },
                    new WellOperationCategory {Id = 1014, Name = "Опресовка Ц.К.", Code = 0 },
                    new WellOperationCategory {Id = 1015, Name = "Опрессовка ВЗД", Code = 0 },
                    new WellOperationCategory {Id = 1016, Name = "Перевод скв на другой тип промывочной жидкости", Code = 0 },
                    new WellOperationCategory {Id = 1017, Name = "Перезапись каротажа", Code = 0 },
                    new WellOperationCategory {Id = 1018, Name = "Перетяжка талевого каната", Code = 0 },
                    new WellOperationCategory {Id = 1019, Name = "Перетяжка тальканата", Code = 0 },
                    new WellOperationCategory {Id = 1020, Name = "Подъем инструмента", Code = 0 },
                    new WellOperationCategory {Id = 1021, Name = "Подъем инструмента с промывкой", Code = 0 },
                    new WellOperationCategory {Id = 1022, Name = "Обратная проработка", Code = 0 },
                    new WellOperationCategory {Id = 1023, Name = "Сборка инструмента", Code = 0 },
                    new WellOperationCategory {Id = 1024, Name = "Подготовительные работы", Code = 0 },
                    new WellOperationCategory {Id = 1025, Name = "Сборка КНБК", Code = 0 },
                    new WellOperationCategory {Id = 1026, Name = "Разборка КНБК", Code = 0 },
                    new WellOperationCategory {Id = 1027, Name = "Промывка", Code = 0 },
                    new WellOperationCategory {Id = 1028, Name = "Промежуточная промывка", Code = 0 },
                    new WellOperationCategory {Id = 1029, Name = "Прокачка пачек", Code = 0 },
                    new WellOperationCategory {Id = 1030, Name = "Разбуривание тех.оснастки", Code = 0 },
                    new WellOperationCategory {Id = 1031, Name = "Ремонт", Code = 0 },
                    new WellOperationCategory {Id = 1032, Name = "Спуск инструмента", Code = 0 },
                    new WellOperationCategory {Id = 1033, Name = "Спуск инструмента с промывкой", Code = 0 },
                    new WellOperationCategory {Id = 1034, Name = "Прямая проработка", Code = 0 },
                    new WellOperationCategory {Id = 1035, Name = "Принудительная проработка", Code = 0 },
                    new WellOperationCategory {Id = 1036, Name = "Спуск обсадной колонны", Code = 0 },
                    new WellOperationCategory {Id = 1037, Name = "Тех СПО-подъем", Code = 0 },
                    new WellOperationCategory {Id = 1038, Name = "Тех СПО-спуск", Code = 0 },
                    new WellOperationCategory {Id = 1039, Name = "Техническое обслуживание", Code = 0 },
                    new WellOperationCategory {Id = 1040, Name = "Цементаж", Code = 0 },
                    new WellOperationCategory {Id = 1041, Name = "Шаблонировка ствола", Code = 0 },
                    new WellOperationCategory {Id = 1042, Name = "Геологическое осложнение", Code = 0 },
                    new WellOperationCategory {Id = 1043, Name = "НПВ", Code = 0 },
                    new WellOperationCategory {Id = 1044, Name = "ВМР", Code = 0 },
                    new WellOperationCategory {Id = 1045, Name = "Прочее", Code = 0 },
                    new WellOperationCategory {Id = 1046, Name = "Спуск КНБК", Code = 0 },
                    new WellOperationCategory {Id = 1047, Name = "Подъем КНБК", Code = 0 },
                    new WellOperationCategory {Id = 1048, Name = "Спуск ОК", Code = 0 }
                });
            });

            modelBuilder.Entity<FileCategory>(entity =>
            {
                entity.HasData(new List<FileCategory> {
                    new FileCategory {Id = 1, Name = "Растворный сервис", ShortName = "fluidService"},
                    new FileCategory {Id = 2, Name = "Цементирование", ShortName = "cement"},
                    new FileCategory {Id = 3, Name = "ННБ", ShortName = "nnb"},
                    new FileCategory {Id = 4, Name = "ГТИ", ShortName = "gti"},
                    new FileCategory {Id = 5, Name = "Документы по скважине", ShortName = "wellDocuments"},
                    new FileCategory {Id = 6, Name = "Супервайзер", ShortName = "supervisor"},
                    new FileCategory {Id = 7, Name = "Мастер", ShortName = "master"},
                    new FileCategory {Id = 8, Name = "Последний замер бурового раствора ПЛАН", ShortName = "fluidPlanLastData"},
                    new FileCategory {Id = 9, Name = "Последний замер бурового раствора ФАКТ", ShortName = "fluidFactLastData"},
                    new FileCategory {Id = 10, Name = "Последние данные Шламограммы", ShortName = "mudLastData"},
                    new FileCategory {Id = 11, Name = "Последние данные ННБ", ShortName = "nnbLastData"},
                    new FileCategory {Id = 12, Name = "Рапорт", ShortName = "report"},
                    new FileCategory {Id = 13, Name = "Программа бурения, части", ShortName = "ПБч"},
                    new FileCategory {Id = 14, Name = "Программа бурения", ShortName = "ПБ"},
                });
            });

            modelBuilder.Entity<WellSectionType>(entity => {
                entity.HasData(new List<WellSectionType>{
                    new WellSectionType{ Id = 1, Caption = "Пилотный ствол"},
                    new WellSectionType{ Id = 2, Caption = "Направление"},
                    new WellSectionType{ Id = 3, Caption = "Кондуктор"},
                    new WellSectionType{ Id = 4, Caption = "Эксплуатационная колонна"},
                    new WellSectionType{ Id = 5, Caption = "Транспортный ствол"},
                    new WellSectionType{ Id = 6, Caption = "Хвостовик"},
                });
            });

            modelBuilder.Entity<WellType>(entity => {
                entity.HasData(new List<WellType> { 
                    new WellType{ Id = 1, Caption = "Наклонно-направленная"},
                    new WellType{ Id = 2, Caption = "Горизонтальная"},
                });
            });

            modelBuilder.Entity<MeasureCategory>(entity => {
                entity.HasData(new List<MeasureCategory> { 
                    new MeasureCategory{ Id = 1, Name = "Показатели бурового раствора", ShortName = "Раствор"},
                    new MeasureCategory{ Id = 2, Name = "Шламограмма", ShortName = "Шламограмма"},
                    new MeasureCategory{ Id = 3, Name = "ННБ", ShortName = "ННБ"},
                });
            });

            modelBuilder.Entity<CompanyType>(entity =>
            {
                entity.HasData(new List<CompanyType>{
                    new CompanyType{ Id = 1, Caption = "Недрапользователь", },
                    new CompanyType{ Id = 2, Caption = "Буровой подрядчик", },
                    new CompanyType{ Id = 3, Caption = "Сервис автоматизации бурения", },
                });
            });
        }

        public IQueryable<Well> GetWellsForCompany(int idCompany)
        {
            return from well in Wells
                   .Include(w => w.RelationCompaniesWells)
                   .ThenInclude(r => r.Company)
                   .Include(w => w.Cluster)
                   .ThenInclude(c => c.Deposit)
                   where well.RelationCompaniesWells.Any(c => c.IdCompany == idCompany)
                   select well;
        }

        public IQueryable<User> GetUsersByLogin(string login)
            => Users
            .Include(e => e.Role)
            .Include(e => e.Company)
            .Where(e => e.Login == login);

        public async Task<(DateTime From, DateTime To)> GetDatesRangeAsync<TEntity>(int idTelemetry,
            CancellationToken token = default)
            where TEntity : class, IIdTelemetryDate
        {
            var dbSet = Set<TEntity>();

            var datesRange = await (from m in dbSet
                                    where m.IdTelemetry == idTelemetry
                                    group m by m.IdTelemetry into g
                                    select new
                                    {
                                        From = g.Min(d => d.Date),
                                        To = g.Max(d => d.Date)
                                    }).AsNoTracking().FirstOrDefaultAsync(token);

            if (datesRange is null)
                return (DateTime.MinValue, DateTime.MaxValue);

            return (datesRange.From, datesRange.To);
        }

        public async Task<IEnumerable<(double? MinDepth, double? MaxDepth, DateTime BeginPeriodDate)>> GetDepthToIntervalAsync(int telemetryId,
            int intervalHoursTimestamp, int workStartTimestamp, double timezoneOffset, CancellationToken token)
        {
            //TODO: Сменить на LINQ группирование
            using var command = Database.GetDbConnection().CreateCommand();

            command.CommandText = $@"SELECT Min(t.bit_depth) AS MinDepth, Max(t.bit_depth) AS MaxDepth, Min(t.Date) AS dateStart
                                     FROM t_data_saub_base AS t
                                     WHERE id_telemetry = {telemetryId} AND t.Id % 10 = 0
                                     GROUP BY floor((extract(epoch from t.date) - {workStartTimestamp}  + {timezoneOffset}) / {intervalHoursTimestamp});";

            Database.OpenConnection();
            using var reader = await command.ExecuteReaderAsync(token);

            IEnumerable<(double? MinDepth, double? MaxDepth, DateTime BeginPeriodDate)> GetResult(DbDataReader rd)
            {
                if (rd.HasRows)
                {
                    while (reader.Read())
                    {
                        yield return
                        (
                            (double?)reader.GetValue(0),
                            (double?)reader.GetValue(1),
                            (DateTime)reader.GetValue(2)
                        );
                    }
                }
            }

            return GetResult(reader);
        }

        public async Task<int> CreatePartitionAsync<TEntity>(string propertyName, int id, CancellationToken token = default)
            where TEntity : class
        {
            var dbSet = Set<TEntity>();
            var baseTableName = dbSet.EntityType.GetTableName();
            var schema = dbSet.EntityType.GetSchema();
            var tableObject = Microsoft.EntityFrameworkCore.Metadata.StoreObjectIdentifier.Table(baseTableName, schema);
            var tableName = baseTableName.Replace("_base", "");
            var property = dbSet.EntityType.GetProperty(propertyName).GetColumnName(tableObject);

            var query = $"CREATE TABLE {tableName}_{id} (like {baseTableName} including all, constraint partitioning_check check ({property} = 1)) INHERITS ({baseTableName});";

            return await Database.ExecuteSqlRawAsync(query, token).ConfigureAwait(false);
        }
    }
}