using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using Domain.Entities.Developers.ValueObject;
using Domain.Entities.Members;

namespace Domain.Entities.Developers;

/// <summary>
/// 개발자 포털 가입 법인 정보 (Member 1:1).
/// API 키 사용 회사의 회사정보 + 본인인증/승인 상태 메타.
/// </summary>
public class Developer
{
    [ForeignKey(nameof(MemberID))]
    public virtual Member? Member { get; private set; }

    [Key]
    public int ID { get; private set; }

    public int MemberID { get; private set; }

    public string CompanyName { get; private set; } = default!;

    public string BusinessNumber { get; private set; } = default!;

    public string CeoName { get; private set; } = default!;

    public string ContactName { get; private set; } = default!;

    public string ContactPhone { get; private set; } = default!;

    public KycStatus KycStatus { get; private set; } = KycStatus.None;

    public string? KycCi { get; private set; }

    public string? KycDi { get; private set; }

    public DateTime? KycVerifiedAt { get; private set; }

    public DeveloperApprovalStatus ApprovalStatus { get; private set; } = DeveloperApprovalStatus.Pending;

    public string? ApprovalReason { get; private set; }

    public DateTime? ApprovedAt { get; private set; }

    public string? ApprovedByAdminID { get; private set; }

    public DateTime CreatedAt { get; private set; } = DateTime.UtcNow;

    public DateTime? UpdatedAt { get; private set; }

    private Developer() { }

    public static Developer Create(
        int memberID,
        string companyName,
        string businessNumber,
        string ceoName,
        string contactName,
        string contactPhone
    ) {
        if (string.IsNullOrWhiteSpace(companyName))
        {
            throw new ArgumentException("Company name is required.", nameof(companyName));
        }
        if (string.IsNullOrWhiteSpace(businessNumber))
        {
            throw new ArgumentException("Business number is required.", nameof(businessNumber));
        }
        if (string.IsNullOrWhiteSpace(ceoName))
        {
            throw new ArgumentException("CEO name is required.", nameof(ceoName));
        }
        if (string.IsNullOrWhiteSpace(contactName))
        {
            throw new ArgumentException("Contact name is required.", nameof(contactName));
        }
        if (string.IsNullOrWhiteSpace(contactPhone))
        {
            throw new ArgumentException("Contact phone is required.", nameof(contactPhone));
        }

        return new Developer
        {
            MemberID = memberID,
            CompanyName = companyName,
            BusinessNumber = businessNumber,
            CeoName = ceoName,
            ContactName = contactName,
            ContactPhone = contactPhone
        };
    }

    public void UpdateCompanyInfo(
        string companyName,
        string businessNumber,
        string ceoName,
        string contactName,
        string contactPhone
    ) {
        CompanyName = companyName;
        BusinessNumber = businessNumber;
        CeoName = ceoName;
        ContactName = contactName;
        ContactPhone = contactPhone;
        UpdatedAt = DateTime.UtcNow;
    }

    public void MarkKycPending()
    {
        KycStatus = KycStatus.Pending;
        UpdatedAt = DateTime.UtcNow;
    }

    public void MarkKycVerified(string? ci, string? di)
    {
        KycStatus = KycStatus.Verified;
        KycCi = ci;
        KycDi = di;
        KycVerifiedAt = DateTime.UtcNow;
        UpdatedAt = DateTime.UtcNow;
    }

    public void MarkKycRejected()
    {
        KycStatus = KycStatus.Rejected;
        UpdatedAt = DateTime.UtcNow;
    }

    public void Approve(string adminID)
    {
        ApprovalStatus = DeveloperApprovalStatus.Approved;
        ApprovalReason = null;
        ApprovedAt = DateTime.UtcNow;
        ApprovedByAdminID = adminID;
        UpdatedAt = DateTime.UtcNow;
    }

    public void Reject(string adminID, string? reason)
    {
        ApprovalStatus = DeveloperApprovalStatus.Rejected;
        ApprovalReason = reason;
        ApprovedAt = DateTime.UtcNow;
        ApprovedByAdminID = adminID;
        UpdatedAt = DateTime.UtcNow;
    }

    public void Suspend(string adminID, string? reason)
    {
        ApprovalStatus = DeveloperApprovalStatus.Suspended;
        ApprovalReason = reason;
        ApprovedByAdminID = adminID;
        UpdatedAt = DateTime.UtcNow;
    }
}