namespace ComplianceDAL.DTO.Analytics;

public class GSTR9DataDTO
{
    public string GSTIN { get; set; } = string.Empty;
    public string LegalName { get; set; } = string.Empty;
    public int FinancialYear { get; set; }  // e.g. 2025 for FY 2025-26
    public GSTR9Section4DTO OutwardSupplies { get; set; } = new();
    public GSTR9Section6DTO ITCAvailed { get; set; } = new();
    public GSTR9Section7DTO ITCReversals { get; set; } = new();
    public GSTR9Section9DTO TaxPaid { get; set; } = new();
    public GSTR9Section14DTO DifferentialTax { get; set; } = new();
}

// Table 4: Details of outward and inward supplies (annual)
public class GSTR9Section4DTO
{
    public decimal TaxableValueB2B { get; set; }
    public decimal TaxableValueB2CL { get; set; }
    public decimal TaxableValueB2CS { get; set; }
    public decimal TaxableValueNilExempt { get; set; }
    public decimal TaxableValueExports { get; set; }
    public decimal TaxableValueCDNR { get; set; }
    public decimal TotalTaxableValue { get; set; }
    public decimal TotalIGST { get; set; }
    public decimal TotalCGST { get; set; }
    public decimal TotalSGST { get; set; }
    public decimal TotalCess { get; set; }
}

// Table 6: ITC availed during the financial year
public class GSTR9Section6DTO
{
    public decimal ITCIGSTOnInputs { get; set; }
    public decimal ITCCGSTOnInputs { get; set; }
    public decimal ITCSGSTOnInputs { get; set; }
    public decimal ITCIGSTOnCapitalGoods { get; set; }
    public decimal ITCCGSTOnCapitalGoods { get; set; }
    public decimal ITCSGSTOnCapitalGoods { get; set; }
    public decimal ITCIGSTOnServices { get; set; }
    public decimal ITCCGSTOnServices { get; set; }
    public decimal ITCSGSTOnServices { get; set; }
    public decimal TotalITCIGST { get; set; }
    public decimal TotalITCCGST { get; set; }
    public decimal TotalITCSGST { get; set; }
}

// Table 7: ITC reversals (aggregate)
public class GSTR9Section7DTO
{
    public decimal ReversalIGST { get; set; }
    public decimal ReversalCGST { get; set; }
    public decimal ReversalSGST { get; set; }
    public decimal NetITCIGST { get; set; }
    public decimal NetITCCGST { get; set; }
    public decimal NetITCSGST { get; set; }
}

// Table 9: Tax paid
public class GSTR9Section9DTO
{
    public decimal TaxPaidIGST { get; set; }
    public decimal TaxPaidCGST { get; set; }
    public decimal TaxPaidSGST { get; set; }
    public decimal InterestIGST { get; set; }
    public decimal InterestCGST { get; set; }
    public decimal InterestSGST { get; set; }
    public decimal LateFeeIGST { get; set; }
    public decimal LateFeeCGST { get; set; }
    public decimal LateFeeSGST { get; set; }
}

// Table 14: Differential tax paid (HSN-wise)
public class GSTR9Section14DTO
{
    public List<GSTR9HSNRowDTO> HSNRows { get; set; } = new();
}

public class GSTR9HSNRowDTO
{
    public string HSNCode { get; set; } = string.Empty;
    public string Description { get; set; } = string.Empty;
    public string UOM { get; set; } = string.Empty;
    public decimal TotalQuantity { get; set; }
    public decimal TaxableValue { get; set; }
    public decimal IGSTAmount { get; set; }
    public decimal CGSTAmount { get; set; }
    public decimal SGSTAmount { get; set; }
    public decimal CessAmount { get; set; }
}

public class GSTR9AnnualRawDTO
{
    public int PeriodMonth { get; set; }
    public string SummaryType { get; set; } = string.Empty;
    public decimal TotalTaxableValue { get; set; }
    public decimal TotalIGST { get; set; }
    public decimal TotalCGST { get; set; }
    public decimal TotalSGST { get; set; }
    public decimal TotalCess { get; set; }
    public decimal TotalITCIGST { get; set; }
    public decimal TotalITCCGST { get; set; }
    public decimal TotalITCSGST { get; set; }
    public int TotalDocuments { get; set; }
}