using Biskilog_Accounting.Server.POSModels;
using Biskilog_Accounting.Shared.CustomModels;
using Biskilog_Accounting.Shared.Enums;
using Biskilog_Accounting.Shared.Interfaces;
using Biskilog_Accounting.Shared.POSModels;
using Microsoft.EntityFrameworkCore;
using Microsoft.Net.Http.Headers;
using MySqlConnector;
using System.Text.Json;

namespace Biskilog_Accounting.Server.Services
{
    public class CustomerService : ICustomer
    {
        private readonly BiskAcdbContext m_context;
        private readonly ITokenService m_tokenService;
        private readonly HttpContext m_httpContext;

        public CustomerService(BiskAcdbContext a_context, ITokenService a_tokenService, IHttpContextAccessor a_httpContextAccessor)
        {
            m_context = a_context;
            m_tokenService = a_tokenService;
            m_httpContext = a_httpContextAccessor?.HttpContext;
        }
        public IEnumerable<CustomerAccounts> FetchCustomers()
        {
            string token = m_httpContext.Request.Headers[HeaderNames.Authorization]!;

            if (AuthEnums.Valid == m_tokenService.ValidateToken(token))
            {
                IEnumerable<string> accessiblebranches = m_tokenService.BranchIds(token);

                using (var command = m_context.Database.GetDbConnection().CreateCommand())
                {
                    command.CommandText = "CALL GetCustomers(@p0)";
                    command.Parameters.Add(new MySqlParameter("@p0", string.Join(", ", accessiblebranches.ToArray())));

                    m_context.Database.OpenConnection();

                    using (var reader = command.ExecuteReader())
                    {
                        while (reader.Read())
                        {
                            yield return new CustomerAccounts
                            {
                                Customer = new Shared.POSModels.Tblcustomer
                                {
                                    CustomerId = reader.GetString(0),
                                    BranchId = reader.GetString(1),
                                    Firstname = reader.GetString(2),
                                    Surname = reader.GetString(3),
                                    Address = reader.GetString(4),
                                    Telephone = reader.GetString(5),
                                    DateAdded = reader.GetDateTime(6),
                                    Status = reader.GetString(7),
                                    Email = reader.GetString(8),
                                    FinancialStatus = reader.GetString(9),
                                },
                                Debt = reader.GetDecimal(10)
                            };
                        }
                    }
                }
            }
        }

        public Task<IEnumerable<CustomerAccounts>> GetCustomers()
        {
            throw new NotImplementedException();
        }

        public async Task SyncCustomers(List<Tblcustomer> a_details)
        {
            string token = m_httpContext.Request.Headers[HeaderNames.Authorization]!;
            if (AuthEnums.Valid == m_tokenService.ValidateToken(token))
            {
                string jsonString = JsonSerializer.Serialize(a_details);
                using (var command = m_context.Database.GetDbConnection().CreateCommand())
                {
                    m_context.Database.OpenConnection();

                    command.CommandText = "CALL CustomerSync(@p0)";
                    command.Parameters.Add(new MySqlParameter("@p0", jsonString));
                    command.ExecuteNonQuery();
                }
            }
        }
    }
}