using Fake.Application;
using Fake.Domain.Exceptions;
using Fake.Users;
using Oms.Domain.CustomersAggregate.Entities;
using Oms.Domain.CustomersAggregate.Repositories;

namespace Oms.Application.Shared;

/// <summary>
/// 营销门户会话解析。
/// </summary>
public static class MarketingPortalSessionHelper
{
    public static void EnsureCustomerLogin(ICurrentUser currentUser)
    {
        if (!OmsSessionHelper.IsCustomerLogin(currentUser))
        {
            throw new BusinessException("仅客户门户可访问");
        }
    }

    public static async Task<Customer> ResolveMainCustomerAsync(
        ICustomerRepository customerRepository,
        ICurrentUser currentUser,
        CancellationToken cancellationToken = default)
    {
        EnsureCustomerLogin(currentUser);
        var sessionCustomer = await OmsSessionHelper.ResolveSessionCustomerAsync(
            customerRepository,
            currentUser);
        return await MarketingCustomerHelper.ResolveMarketingMainCustomerAsync(
            customerRepository,
            sessionCustomer,
            cancellationToken);
    }

    public static string MaskPhone(string? phone)
    {
        if (string.IsNullOrWhiteSpace(phone) || phone.Length < 7)
        {
            return phone ?? string.Empty;
        }

        return phone[..3] + "****" + phone[^4..];
    }

    public static string MaskName(string? name)
    {
        if (string.IsNullOrWhiteSpace(name))
        {
            return string.Empty;
        }

        if (name.Length == 1)
        {
            return "*";
        }

        if (name.Length == 2)
        {
            return name[0] + "*";
        }

        return name[0] + new string('*', name.Length - 2) + name[^1];
    }
}