using System.Data.Common;
using Omika.Core.Domain.Commands;
using Omika.Data.Configuration;
using Omika.Data.Connection;
using Omika.Data.Repositories.Batik;
using Omika.Data.Repositories.Omika;

namespace Omika.Tests.Repositories;

/// <summary>
/// Vérifie que l'INSERT dans <c>Client_Adresse</c> n'écrit AUCUNE colonne d'audit
/// (CreationDate/User, ModifDate/User) — absentes du schéma canonique Batik et
/// Omika — et que le mapping des colonnes métier est correct dans chaque schéma.
/// </summary>
public class ClientAdresseInsertTests
{
    [Fact]
    public async Task Omika_ClientAdresse_Insert_SansColonneAudit()
    {
        var connection = new SpyingHfsqlConnection();
        var repository = new OmikaClientRepository(connection);

        await Assert.ThrowsAsync<InvalidOperationException>(() =>
            repository.CreateAsync(CreateCommandWithAddress()));

        var insert = connection.Commands.Single(c => c.Sql.StartsWith("INSERT INTO Client_Adresse"));
        Assert.DoesNotContain("CreationDate", insert.Sql);
        Assert.DoesNotContain("CreationUser", insert.Sql);
        Assert.DoesNotContain("ModifDate", insert.Sql);
        Assert.DoesNotContain("ModifUser", insert.Sql);
        Assert.Contains("CA_IDAdresse", insert.Sql);
        Assert.Contains("CA_IDClient", insert.Sql);
        Assert.Contains("CA_IDTypeAdresse", insert.Sql);
        Assert.Contains("CA_Principale", insert.Sql);
        // Clé composée HFSQL auto-calculée : jamais écrite explicitement en Omika.
        Assert.DoesNotContain("CA_IDCli_IDAd", insert.Sql);
    }

    [Fact]
    public async Task Omika_ClientAdresse_ParametresCorrects()
    {
        var connection = new SpyingHfsqlConnection();
        var repository = new OmikaClientRepository(connection);

        await Assert.ThrowsAsync<InvalidOperationException>(() =>
            repository.CreateAsync(CreateCommandWithAddress()));

        var insert = connection.Commands.Single(c => c.Sql.StartsWith("INSERT INTO Client_Adresse"));
        object?[] p = insert.Parameters;
        Assert.Equal(4, p.Length);
        Assert.Equal(1L, p[0]);     // CA_IDAdresse (identité auto-générée = 1)
        Assert.Equal(1L, p[1]);     // CA_IDClient (identité auto-générée = 1)
        Assert.Equal(0, p[2]);      // CA_IDTypeAdresse
        Assert.Equal(true, p[3]);   // CA_Principale
    }

    [Fact]
    public async Task Batik_ClientAdresse_Insert_SansColonneAudit()
    {
        var connection = new SpyingHfsqlConnection();
        var repository = new BatikClientRepository(connection);

        await Assert.ThrowsAsync<InvalidOperationException>(() =>
            repository.CreateAsync(CreateCommandWithAddress()));

        var insert = connection.Commands.Single(c => c.Sql.StartsWith("INSERT INTO Client_Adresse"));
        Assert.DoesNotContain("CreationDate", insert.Sql);
        Assert.DoesNotContain("CreationUser", insert.Sql);
        Assert.DoesNotContain("ModifDate", insert.Sql);
        Assert.DoesNotContain("ModifUser", insert.Sql);
        Assert.Contains("CA_IDAdresse", insert.Sql);
        Assert.Contains("CA_IDClient", insert.Sql);
        Assert.Contains("CA_IDTypeAdresse", insert.Sql);
        Assert.Contains("CA_Principale", insert.Sql);
        // Batik écrit la clé composée explicitement (comportement historique).
        Assert.Contains("CA_IDCli_IDAd", insert.Sql);
    }

    [Fact]
    public async Task Batik_ClientAdresse_ParametresCorrects()
    {
        var connection = new SpyingHfsqlConnection();
        var repository = new BatikClientRepository(connection);

        await Assert.ThrowsAsync<InvalidOperationException>(() =>
            repository.CreateAsync(CreateCommandWithAddress()));

        var insert = connection.Commands.Single(c => c.Sql.StartsWith("INSERT INTO Client_Adresse"));
        object?[] p = insert.Parameters;
        Assert.Equal(5, p.Length);
        Assert.Equal(1L, p[0]);     // CA_IDAdresse
        Assert.Equal(1L, p[1]);     // CA_IDClient
        Assert.Equal("11", p[2]);   // CA_IDCli_IDAd = clientId + adresseId
        Assert.Equal(0, p[3]);      // CA_IDTypeAdresse
        Assert.Equal(true, p[4]);   // CA_Principale
    }

    private static ClientCreateCommand CreateCommandWithAddress() => new()
    {
        Nom = "Test",
        Code = "T-001",
        AdresseLigne1 = "1 rue du Test",
        AdresseCodePostal = "75000",
        AdresseVille = "Paris"
    };

    private sealed record ExecutedCommand(string Sql, object?[] Parameters);

    private sealed class SpyingHfsqlConnection : IHfsqlConnection, IHfsqlWriteConnection
    {
        public HfsqlOptions Options => new();
        public HfsqlConnectionState State { get; private set; } = HfsqlConnectionState.Closed;
        public DbTransaction? ActiveTransaction => null;

        public IReadOnlyList<ExecutedCommand> Commands => _commands;
        private readonly List<ExecutedCommand> _commands = [];

        private void Record(string sql, IReadOnlyList<object?>? parameters)
            => _commands.Add(new ExecutedCommand(sql, parameters?.ToArray() ?? Array.Empty<object?>()));

        public Task OpenAsync(CancellationToken cancellationToken = default)
        {
            State = HfsqlConnectionState.Open;
            return Task.CompletedTask;
        }

        public Task CloseAsync()
        {
            State = HfsqlConnectionState.Closed;
            return Task.CompletedTask;
        }

        public ValueTask DisposeAsync()
        {
            State = HfsqlConnectionState.Closed;
            return ValueTask.CompletedTask;
        }

        public Task<object?> ExecuteScalarAsync(string sql, IReadOnlyList<object?>? parameters = null, CancellationToken cancellationToken = default)
            => Task.FromResult<object?>(null);

        public Task<int> ExecuteNonQueryAsync(string sql, IReadOnlyList<object?>? parameters = null, CancellationToken cancellationToken = default)
        {
            Record(sql, parameters);
            return Task.FromResult(0);
        }

        public Task<IReadOnlyList<IReadOnlyDictionary<string, object?>>> QueryAsync(string sql, IReadOnlyList<object?>? parameters = null, CancellationToken cancellationToken = default)
        {
            Record(sql, parameters);
            return Task.FromResult<IReadOnlyList<IReadOnlyDictionary<string, object?>>>([]);
        }

        public Task<IReadOnlyList<HfsqlColumnMetadata>> GetColumnsAsync(string tableName, CancellationToken cancellationToken = default)
            => Task.FromResult<IReadOnlyList<HfsqlColumnMetadata>>([]);

        public Task BeginTransactionAsync(CancellationToken cancellationToken = default) => Task.CompletedTask;

        public Task CommitAsync(CancellationToken cancellationToken = default) => Task.CompletedTask;

        public Task RollbackAsync(CancellationToken cancellationToken = default) => Task.CompletedTask;

        public Task<IReadOnlyList<long?>> ExecuteInTransactionAsync(IReadOnlyList<HfsqlWriteOperation> operations, CancellationToken cancellationToken = default, DbTransaction? transaction = null)
        {
            foreach (HfsqlWriteOperation operation in operations)
            {
                Record(operation.Sql, operation.Parameters);
            }

            // Une identité auto-générée (1) pour chaque opération.
            return Task.FromResult<IReadOnlyList<long?>>(operations.Select(_ => (long?)1L).ToList());
        }
    }
}