using EAIAdminDAL.DTO;
using EAIAdminDAL.Query;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.GenerateAutoNumber;
using GB5Shared.QueryExecutor;
using Microsoft.Extensions.Logging;
using System;
using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
using static GB5Shared.GB5Constant.Constant;

namespace EAIAdminDAL.CustomCode
{
    public class EAICapabilityAdminDAL : IEAICapabilityAdminDAL
    {
        private readonly IQueryExecutor _qe;
        private readonly AutoNumber _autoNumber;
        private readonly ILogger<EAICapabilityAdminDAL> _logger;

        public EAICapabilityAdminDAL(IQueryExecutor qe, AutoNumber autoNumber, ILogger<EAICapabilityAdminDAL> logger)
        {
            _qe         = qe         ?? throw new ArgumentNullException(nameof(qe));
            _autoNumber = autoNumber ?? throw new ArgumentNullException(nameof(autoNumber));
            _logger     = logger     ?? throw new ArgumentNullException(nameof(logger));
        }

        public async Task<IEnumerable<EAICapabilityAdminDTO>> GetCapabilityListAsync(
            string? search, LoginDTO login, CancellationToken ct = default)
        {
            ct.ThrowIfCancellationRequested();

            try
            {
                var searchPattern = string.IsNullOrWhiteSpace(search) ? null : $"%{search}%";

                var result = await _qe.QueryAsync<EAICapabilityAdminDTO>(
                    login,
                    EAICapabilityAdminQB.GET_CAPABILITY_LIST,
                    new { TenantId = login.ClientId, SearchPattern = searchPattern },
                    cancellationToken: ct).ConfigureAwait(false);

                return result ?? [];
            }
            catch (OperationCanceledException)
            {
                _logger.LogWarning("DAL | GetCapabilityList | Cancelled | Tenant={TenantId}", login.ClientId);
                throw;
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "DAL | GetCapabilityList | Error | Tenant={TenantId}", login.ClientId);
                throw;
            }
        }

        public async Task<EAICapabilityAdminDTO?> GetCapabilityAsync(
            int capabilityId, LoginDTO login, CancellationToken ct = default)
        {
            ct.ThrowIfCancellationRequested();

            try
            {
                return await _qe.QuerySingleAsync<EAICapabilityAdminDTO>(
                    login,
                    EAICapabilityAdminQB.GET_CAPABILITY,
                    new { CapabilityId = capabilityId, TenantId = login.ClientId },
                    cancellationToken: ct).ConfigureAwait(false);
            }
            catch (OperationCanceledException)
            {
                _logger.LogWarning("DAL | GetCapability | Cancelled | CapabilityId={Id}", capabilityId);
                throw;
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "DAL | GetCapability | Error | CapabilityId={Id}", capabilityId);
                throw;
            }
        }

        public async Task<int> InsertCapabilityAsync(
            EAICapabilityAdminDTO dto, LoginDTO login, CancellationToken ct = default)
        {
            ct.ThrowIfCancellationRequested();

            try
            {
                // AICAPABILITYID is a plain INT PK (not IDENTITY) — must be generated here.
                var auto = await _autoNumber.GetNumberAsync(1, AUTONUMBERCONSTANT.EAICAPABILITY, login)
                    .ConfigureAwait(false);
                var newId = auto.StartNumber;
                var now = DateTime.UtcNow;

                await _qe.ExecuteAsync(
                    login,
                    EAICapabilityAdminQB.INSERT_CAPABILITY,
                    new
                    {
                        CapabilityId   = newId,
                        TenantId       = login.ClientId,
                        dto.CapabilityCode,
                        dto.CapabilityName,
                        dto.MaxMaturityLevel,
                        dto.Keywords,
                        dto.EAIRemoteId,
                        dto.Version,
                        CreatedById    = login.UserId,
                        CreatedOn      = now
                    },
                    cancellationToken: ct).ConfigureAwait(false);

                _logger.LogInformation("DAL | InsertCapability | Completed | NewId={NewId}", newId);
                return newId;
            }
            catch (OperationCanceledException)
            {
                _logger.LogWarning("DAL | InsertCapability | Cancelled | CapabilityCode={Code}", dto.CapabilityCode);
                throw;
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "DAL | InsertCapability | Error | CapabilityCode={Code}", dto.CapabilityCode);
                throw;
            }
        }

        public async Task UpdateCapabilityAsync(
            EAICapabilityAdminDTO dto, LoginDTO login, CancellationToken ct = default)
        {
            ct.ThrowIfCancellationRequested();

            try
            {
                await _qe.ExecuteAsync(
                    login,
                    EAICapabilityAdminQB.UPDATE_CAPABILITY,
                    new
                    {
                        dto.CapabilityId,
                        TenantId         = login.ClientId,
                        dto.CapabilityName,
                        dto.MaxMaturityLevel,
                        dto.Keywords,
                        dto.EAIRemoteId,
                        dto.Version,
                        ModifiedById     = login.UserId,
                        ModifiedOn       = DateTime.UtcNow
                    },
                    cancellationToken: ct).ConfigureAwait(false);
            }
            catch (OperationCanceledException)
            {
                _logger.LogWarning("DAL | UpdateCapability | Cancelled | CapabilityId={Id}", dto.CapabilityId);
                throw;
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "DAL | UpdateCapability | Error | CapabilityId={Id}", dto.CapabilityId);
                throw;
            }
        }

        public async Task UpdateEAIRemoteIdAsync(
            int capabilityId, long eaiRemoteId, LoginDTO login, CancellationToken ct = default)
        {
            ct.ThrowIfCancellationRequested();

            await _qe.ExecuteAsync(
                login,
                EAICapabilityAdminQB.UPDATE_EAIREMOTEID,
                new { CapabilityId = capabilityId, TenantId = login.ClientId, EAIRemoteId = eaiRemoteId },
                cancellationToken: ct).ConfigureAwait(false);
        }

        public async Task DeleteCapabilityAsync(
            int capabilityId, LoginDTO login, CancellationToken ct = default)
        {
            ct.ThrowIfCancellationRequested();

            try
            {
                await _qe.ExecuteAsync(
                    login,
                    EAICapabilityAdminQB.DELETE_CAPABILITY,
                    new
                    {
                        CapabilityId = capabilityId,
                        TenantId     = login.ClientId,
                        ModifiedById = login.UserId,
                        ModifiedOn   = DateTime.UtcNow
                    },
                    cancellationToken: ct).ConfigureAwait(false);
            }
            catch (OperationCanceledException)
            {
                _logger.LogWarning("DAL | DeleteCapability | Cancelled | CapabilityId={Id}", capabilityId);
                throw;
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "DAL | DeleteCapability | Error | CapabilityId={Id}", capabilityId);
                throw;
            }
        }

        public async Task<bool> CapabilityCodeExistsAsync(
            string capabilityCode, int excludeCapabilityId, LoginDTO login, CancellationToken ct = default)
        {
            ct.ThrowIfCancellationRequested();

            var count = await _qe.ExecuteScalarAsync<int>(
                login,
                EAICapabilityAdminQB.EXISTS_CAPABILITYCODE,
                new { CapabilityCode = capabilityCode, CapabilityId = excludeCapabilityId },
                cancellationToken: ct).ConfigureAwait(false);

            return count == 1;
        }
    }
}