using MagicCarpetContracts.Exceptions;
using MagicCarpetContracts.Extensions;
using MagicCarpetContracts.Infrastructure;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;

namespace MagicCarpetContracts.DataModels;

public class EmployeeDataModel(string id, string fio, string email, string postId, DateTime birthDate, DateTime employmentDate, bool isDeleted) : IValidation
{
    public string Id { get; private set; } = id;

    public string FIO { get; private set; } = fio;

    public string Email { get; private set; } = email;

    public string PostId { get; private set; } = postId;

    public DateTime BirthDate { get; private set; } = birthDate;

    public DateTime EmploymentDate { get; private set; } = employmentDate;

    public bool IsDeleted { get; private set; } = isDeleted;

    public void Validate()
    {
        if (Id.IsEmpty())
            throw new ValidationException("Field Id is empty");

        if (!Id.IsGuid())
            throw new ValidationException("The value in the field Id is not a unique identifier");

        if (FIO.IsEmpty())
            throw new ValidationException("Field FIO is empty");

        if (Email.IsEmpty())
            throw new ValidationException("Field Email is empty");

        if (!Regex.IsMatch(Email, @"^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$"))
            throw new ValidationException("Field Email is not a valid email address");

        if (PostId.IsEmpty())
            throw new ValidationException("Field PostId is empty");

        if (!PostId.IsGuid())
            throw new ValidationException("The value in the field PostId is not a unique identifier");

        if (BirthDate.Date > DateTime.Now.AddYears(-18).Date)
            throw new ValidationException($"Only adults can be hired (BirthDate = {BirthDate.ToShortDateString()})");

        if (EmploymentDate.Date < BirthDate.Date)
            throw new ValidationException("The date of employment cannot be less than the date of birth");

        if ((EmploymentDate - BirthDate).TotalDays / 365 < 18) 
            throw new ValidationException($"Only adults can be hired (EmploymentDate - {EmploymentDate.ToShortDateString()}, BirthDate - {BirthDate.ToShortDateString()})");
    }
}