using System.ComponentModel.DataAnnotations;

namespace Domain.Entities.Stocks;

/// <summary>
/// SEIBro 대금지급일정 정보 (getCostPaySchedul) — 배당금/단주대금 지급일정 (Wave 3).
/// 날짜 스윕(대금지급일 TH1_PAY_TERM_BEGIN_DT × 지급구분 PAY_COST_TPCD{1배당금,3단주대금}) → 지급일 window delete+insert.
/// ⚠️ 응답엔 TH1_PAY_TERM_BEGIN_DT·PAY_COST_TPCD 가 없어(요청 파라미터) 수집 배치가 스탬핑한다.
/// 단주대금(PayCostTpcd=3) 지급건은 OddLotPayment(getOddLotInfo) 수집 트리거가 된다.
/// </summary>
public class PaymentSchedule
{
    [Key]
    public int ID { get; private set; }

    /// <summary>발행회사 고객번호 (ISSUCO_CUSTNO)</summary>
    public int IssucoCustno { get; private set; }

    /// <summary>종목번호 (ISIN)</summary>
    public string Isin { get; private set; } = default!;

    /// <summary>한글종목명 (KOR_SECN_NM)</summary>
    public string? KorSecnNm { get; private set; }

    /// <summary>종목종류코드 (SECN_KACD) — 101보통주 201우선주</summary>
    public string? SecnKacd { get; private set; }

    /// <summary>권리기준일자 (RGT_STD_DT)</summary>
    public DateOnly? RgtStdDt { get; private set; }

    /// <summary>권리사유명 (RGT_RACD_NM) — 예 국내CB행사·국내BW행사 (실샘플 확인, 가이드 xlsx 누락분)</summary>
    public string? RgtRacdNm { get; private set; }

    /// <summary>권리사유세부유형코드 (RGT_RSN_DTAIL_SORT_CD)</summary>
    public string? RgtRsnDetailSortCd { get; private set; }

    /// <summary>지급대금구분코드 (PAY_COST_TPCD, 요청 스탬핑) — 1배당금 3단주대금</summary>
    public string PayCostTpcd { get; private set; } = default!;

    /// <summary>대금지급일 (TH1_PAY_TERM_BEGIN_DT, 요청 스탬핑) — 1차지급기간시작일</summary>
    public DateOnly Th1PayTermBeginDt { get; private set; }

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

    private PaymentSchedule() { }

    public static PaymentSchedule Create(
        int issucoCustno,
        string isin,
        string? korSecnNm,
        string? secnKacd,
        DateOnly? rgtStdDt,
        string? rgtRacdNm,
        string? rgtRsnDetailSortCd,
        string payCostTpcd,
        DateOnly th1PayTermBeginDt)
    {
        if (string.IsNullOrWhiteSpace(isin))
        {
            throw new ArgumentException("isin required", nameof(isin));
        }

        if (string.IsNullOrWhiteSpace(payCostTpcd))
        {
            throw new ArgumentException("payCostTpcd required", nameof(payCostTpcd));
        }

        return new PaymentSchedule
        {
            IssucoCustno = issucoCustno,
            Isin = isin.Trim(),
            KorSecnNm = Trimmed(korSecnNm),
            SecnKacd = Trimmed(secnKacd),
            RgtStdDt = rgtStdDt,
            RgtRacdNm = Trimmed(rgtRacdNm),
            RgtRsnDetailSortCd = Trimmed(rgtRsnDetailSortCd),
            PayCostTpcd = payCostTpcd.Trim(),
            Th1PayTermBeginDt = th1PayTermBeginDt
        };
    }

    private static string? Trimmed(string? value)
    {
        return string.IsNullOrWhiteSpace(value) ? null : value.Trim();
    }
}