using System.Data;
using Microsoft.Extensions.Logging;
using NPoco;
using Umbraco.Cms.Core;
using Umbraco.Cms.Core.Cache;
using Umbraco.Cms.Core.Models;
using Umbraco.Cms.Core.Persistence.Querying;
using Umbraco.Cms.Core.Persistence.Repositories;
using Umbraco.Cms.Infrastructure.Persistence.Dtos;
using Umbraco.Cms.Infrastructure.Persistence.Factories;
using Umbraco.Cms.Infrastructure.Scoping;
using Umbraco.Extensions;

namespace Umbraco.Cms.Infrastructure.Persistence.Repositories.Implement;

internal class DomainRepository : EntityRepositoryBase<int, IDomain>, IDomainRepository
{
    public DomainRepository(IScopeAccessor scopeAccessor, AppCaches cache, ILogger<DomainRepository> logger)
        : base(scopeAccessor, cache, logger)
    { }

    public IDomain? GetByName(string domainName)
        => GetMany().FirstOrDefault(x => x.DomainName.InvariantEquals(domainName));

    public bool Exists(string domainName)
        => GetMany().Any(x => x.DomainName.InvariantEquals(domainName));

    public IEnumerable<IDomain> GetAll(bool includeWildcards)
        => GetMany().Where(x => includeWildcards || x.IsWildcard == false);

    public IEnumerable<IDomain> GetAssignedDomains(int contentId, bool includeWildcards)
        => GetMany().Where(x => x.RootContentId == contentId).Where(x => includeWildcards || x.IsWildcard == false);

    protected override IRepositoryCachePolicy<IDomain, int> CreateCachePolicy()
        => new FullDataSetRepositoryCachePolicy<IDomain, int>(GlobalIsolatedCache, ScopeAccessor, GetEntityId, false);

    protected override IDomain? PerformGet(int id)
        // Use the underlying GetAll which will force cache all domains
        => GetMany().FirstOrDefault(x => x.Id == id);

    protected override IEnumerable<IDomain> PerformGetAll(params int[]? ids)
    {
        Sql<ISqlContext> sql = GetBaseQuery(false).Where<DomainDto>(x => x.Id > 0);
        if (ids?.Any() ?? false)
        {
            sql.WhereIn<DomainDto>(x => x.Id, ids);
        }
        sql.OrderBy<DomainDto>(dto => dto.SortOrder);

        return Database.Fetch<DomainDto>(sql).Select(DomainFactory.BuildEntity);
    }

    protected override IEnumerable<IDomain> PerformGetByQuery(IQuery<IDomain> query)
        => throw new NotSupportedException("This repository does not support this method");

    protected override Sql<ISqlContext> GetBaseQuery(bool isCount)
    {
        Sql<ISqlContext> sql = Sql();
        if (isCount)
        {
            sql.SelectCount().From<DomainDto>();
        }
        else
        {
            sql.Select($"{Constants.DatabaseSchema.Tables.Domain}.*, {Constants.DatabaseSchema.Tables.Language}.languageISOCode")
                .From<DomainDto>()
                .LeftJoin<LanguageDto>()
                .On<DomainDto, LanguageDto>(dto => dto.DefaultLanguage, dto => dto.Id);
        }

        return sql;
    }

    protected override string GetBaseWhereClause()
        => $"{Constants.DatabaseSchema.Tables.Domain}.id = @id";

    protected override IEnumerable<string> GetDeleteClauses()
        => new []
        {
            $"DELETE FROM {Constants.DatabaseSchema.Tables.Domain} WHERE id = @id",
        };

    protected override void PersistNewItem(IDomain entity)
    {
        var exists = Database.ExecuteScalar<int>(
            $"SELECT COUNT(*) FROM {Constants.DatabaseSchema.Tables.Domain} WHERE domainName = @domainName",
            new { domainName = entity.DomainName });
        if (exists > 0)
        {
            throw new DuplicateNameException($"The domain name {entity.DomainName} is already assigned.");
        }

        if (entity.RootContentId.HasValue)
        {
            var contentExists = Database.ExecuteScalar<int>(
                $"SELECT COUNT(*) FROM {Constants.DatabaseSchema.Tables.Content} WHERE nodeId = @id",
                new { id = entity.RootContentId.Value });
            if (contentExists == 0)
            {
                throw new NullReferenceException($"No content exists with id {entity.RootContentId.Value}.");
            }
        }

        if (entity.LanguageId.HasValue)
        {
            var languageExists = Database.ExecuteScalar<int>(
                $"SELECT COUNT(*) FROM {Constants.DatabaseSchema.Tables.Language} WHERE id = @id",
                new { id = entity.LanguageId.Value });
            if (languageExists == 0)
            {
                throw new NullReferenceException($"No language exists with id {entity.LanguageId.Value}.");
            }
        }

        entity.AddingEntity();

        // Get sort order
        entity.SortOrder = GetNewSortOrder(entity.RootContentId, entity.IsWildcard);

        DomainDto dto = DomainFactory.BuildDto(entity);

        var id = Convert.ToInt32(Database.Insert(dto));
        entity.Id = id;

        // If the language changed, we need to resolve the ISO code
        if (entity.LanguageId.HasValue)
        {
            ((UmbracoDomain)entity).LanguageIsoCode = Database.ExecuteScalar<string>(
                $"SELECT languageISOCode FROM {Constants.DatabaseSchema.Tables.Language} WHERE id = @langId",
                new { langId = entity.LanguageId });
        }

        entity.ResetDirtyProperties();
    }

    protected override void PersistUpdatedItem(IDomain entity)
    {
        entity.UpdatingEntity();

        // Ensure there is no other domain with the same name on another entity
        var exists = Database.ExecuteScalar<int>(
            $"SELECT COUNT(*) FROM {Constants.DatabaseSchema.Tables.Domain} WHERE domainName = @domainName AND umbracoDomain.id <> @id",
            new { domainName = entity.DomainName, id = entity.Id });
        if (exists > 0)
        {
            throw new DuplicateNameException($"The domain name {entity.DomainName} is already assigned.");
        }

        if (entity.RootContentId.HasValue)
        {
            var contentExists = Database.ExecuteScalar<int>(
                $"SELECT COUNT(*) FROM {Constants.DatabaseSchema.Tables.Content} WHERE nodeId = @id",
                new { id = entity.RootContentId.Value });
            if (contentExists == 0)
            {
                throw new NullReferenceException($"No content exists with id {entity.RootContentId.Value}.");
            }
        }

        if (entity.LanguageId.HasValue)
        {
            var languageExists = Database.ExecuteScalar<int>(
                $"SELECT COUNT(*) FROM {Constants.DatabaseSchema.Tables.Language} WHERE id = @id",
                new { id = entity.LanguageId.Value });
            if (languageExists == 0)
            {
                throw new NullReferenceException($"No language exists with id {entity.LanguageId.Value}.");
            }
        }

        DomainDto dto = DomainFactory.BuildDto(entity);

        Database.Update(dto);

        // If the language changed, we need to resolve the ISO code
        if (entity.WasPropertyDirty("LanguageId"))
        {
            ((UmbracoDomain)entity).LanguageIsoCode = Database.ExecuteScalar<string>(
                $"SELECT languageISOCode FROM {Constants.DatabaseSchema.Tables.Language} WHERE id = @langId",
                new { langId = entity.LanguageId });
        }

        entity.ResetDirtyProperties();
    }

    protected int GetNewSortOrder(int? rootContentId, bool isWildcard)
        => isWildcard
        ? -1
        : Database.ExecuteScalar<int>(
            $"SELECT COALESCE(MAX(sortOrder), -1) + 1 FROM {Constants.DatabaseSchema.Tables.Domain} WHERE domainRootStructureID = @rootContentId AND NOT (domainName = '' OR domainName LIKE '*%')",
            new { rootContentId });
}