namespace General_Ledger_Service.DTOs.Reports
{
    public class GeneralLedgerLineDto
    {
        public DateOnly EntryDate { get; set; }
        public string JournalNo { get; set; } = string.Empty;
        public string AccountCode { get; set; } = string.Empty;
        public string AccountName { get; set; } = string.Empty;
        public string? Narration { get; set; }
        public decimal DebitAmount { get; set; }
        public decimal CreditAmount { get; set; }
        public decimal RunningBalance { get; set; }
    }

    // Retrofit 2026-07-22 - flat, no depth/indentation (05_LKAS_Report_PDF_Templates.md Section 2).
    public class TrialBalanceRowDto
    {
        public string AccountCode { get; set; } = string.Empty;
        public string AccountName { get; set; } = string.Empty;
        public decimal Debit { get; set; }
        public decimal Credit { get; set; }
    }

    // Retrofit 2026-07-31 - restructured around accounts.balance_sheet_classification
    // (Accounting_System_Design_LKAS.md Section 11.3), replacing the old flat
    // {depth, lineItem, accountType, balance} recursive-rollup array entirely - same
    // leaf-rows-plus-tag pattern as ProfitAndLossLeafRowDto/income_statement_section below.
    public class BalanceSheetLineDto
    {
        public string AccountCode { get; set; } = string.Empty;
        public string AccountName { get; set; } = string.Empty;
        public decimal Balance { get; set; }
    }

    public class BalanceSheetSectionDto
    {
        public List<BalanceSheetLineDto> Lines { get; set; } = [];
        public decimal Total { get; set; }
    }

    public class BalanceSheetReportDto
    {
        public DateOnly AsOfDate { get; set; }
        public BalanceSheetSectionDto NonCurrentAssets { get; set; } = new();
        public BalanceSheetSectionDto CurrentAssets { get; set; } = new();
        public BalanceSheetSectionDto UnclassifiedAssets { get; set; } = new();
        public decimal TotalAssets { get; set; }
        public BalanceSheetSectionDto Equity { get; set; } = new();
        public BalanceSheetSectionDto NonCurrentLiabilities { get; set; } = new();
        public BalanceSheetSectionDto CurrentLiabilities { get; set; } = new();
        public BalanceSheetSectionDto UnclassifiedLiabilities { get; set; } = new();
        public decimal TotalEquityAndLiabilities { get; set; }
    }

    // Leaf-row shape for AccountRepository.GetBalanceSheetLeafRowsAsync - Balance is
    // already sign-adjusted per account type (debit-normal Asset vs credit-normal
    // Liability/Equity), same convention the old recursive-rollup query used. ReportService
    // groups these into BalanceSheetReportDto's sections by AccountTypeId + BalanceSheetClassification
    // (same raw-projection -> public-DTO split as ProfitAndLossLeafRowDto above).
    public class BalanceSheetLeafRowDto
    {
        public string AccountCode { get; set; } = string.Empty;
        public string AccountName { get; set; } = string.Empty;
        public short AccountTypeId { get; set; }
        public string? BalanceSheetClassification { get; set; }
        public decimal Balance { get; set; }
    }

    // Retrofit 2026-07-22 - restructured around accounts.income_statement_section
    // (Accounting_System_Design_LKAS.md Section 11.4), replacing the old flat
    // {depth, lineItem, accountType, amount} array entirely.
    public class ProfitAndLossLineDto
    {
        public string AccountCode { get; set; } = string.Empty;
        public string AccountName { get; set; } = string.Empty;
        public decimal Amount { get; set; }
    }

    public class ProfitAndLossSectionDto
    {
        public List<ProfitAndLossLineDto> Lines { get; set; } = [];
        public decimal Total { get; set; }
    }

    public class ProfitAndLossReportDto
    {
        public DateOnly PeriodStart { get; set; }
        public DateOnly PeriodEnd { get; set; }
        public ProfitAndLossSectionDto Sales { get; set; } = new();
        public ProfitAndLossSectionDto CostOfSales { get; set; } = new();
        public decimal GrossProfit { get; set; }
        public ProfitAndLossSectionDto OtherIncome { get; set; } = new();
        public ProfitAndLossSectionDto DistributionExpenses { get; set; } = new();
        public ProfitAndLossSectionDto AdministrationExpenses { get; set; } = new();
        public ProfitAndLossSectionDto OtherExpenses { get; set; } = new();
        public ProfitAndLossSectionDto FinancialExpenses { get; set; } = new();
        public ProfitAndLossSectionDto Unclassified { get; set; } = new();
        public decimal NetProfitForPeriod { get; set; }
    }

    // Leaf-row shape for AccountRepository.GetProfitAndLossLeafRowsAsync - Amount is
    // the unflipped credit - debit; ReportService applies the sign convention
    // per income_statement_section when building ProfitAndLossReportDto.
    public class ProfitAndLossLeafRowDto
    {
        public string AccountCode { get; set; } = string.Empty;
        public string AccountName { get; set; } = string.Empty;
        public short AccountTypeId { get; set; }
        public string? IncomeStatementSection { get; set; }
        public decimal Amount { get; set; }
    }

    // Full LKAS 7 indirect-method cash flow — Accounting_System_Design_LKAS.md Section 11.5.
    public class CashFlowReportDto
    {
        public DateOnly PeriodStart { get; set; }
        public DateOnly PeriodEnd { get; set; }
        public CashFlowOperatingActivitiesDto OperatingActivities { get; set; } = new();
        public CashFlowInvestingActivitiesDto InvestingActivities { get; set; } = new();
        public CashFlowFinancingActivitiesDto FinancingActivities { get; set; } = new();
        public decimal NetIncreaseDecreaseInCash { get; set; }
        public decimal OpeningCashBalance { get; set; }
        public decimal ClosingCashBalance { get; set; }
    }

    public class CashFlowOperatingActivitiesDto
    {
        public decimal ProfitForPeriod { get; set; }
        public List<CashFlowNonCashAdjustmentDto> NonCashAdjustments { get; set; } = [];
        public List<CashFlowWorkingCapitalChangeDto> WorkingCapitalChanges { get; set; } = [];
        public decimal NetCashFromOperatingActivities { get; set; }
    }

    public class CashFlowNonCashAdjustmentDto
    {
        public string Description { get; set; } = string.Empty;
        public decimal Amount { get; set; }
    }

    public class CashFlowWorkingCapitalChangeDto
    {
        public string AccountCode { get; set; } = string.Empty;
        public string AccountName { get; set; } = string.Empty;
        // Retrofit 2026-07-22 - the account balance's own movement ("Increase"/"Decrease"),
        // independent of ChangeAmount's sign (cash impact, which flips between asset/liability
        // accounts) - see Accounting_System_Design_LKAS.md Section 11.5's retrofit note.
        public string Direction { get; set; } = string.Empty;
        public decimal ChangeAmount { get; set; }
    }

    public class CashFlowLineDto
    {
        public string AccountCode { get; set; } = string.Empty;
        public string AccountName { get; set; } = string.Empty;
        public decimal Amount { get; set; }
    }

    public class CashFlowInvestingActivitiesDto
    {
        public List<CashFlowLineDto> Lines { get; set; } = [];
        public decimal NetCashFromInvestingActivities { get; set; }
    }

    public class CashFlowFinancingActivitiesDto
    {
        public List<CashFlowLineDto> Lines { get; set; } = [];
        public decimal NetCashFromFinancingActivities { get; set; }
    }

    public class BudgetVsActualRowDto
    {
        public long BudgetLineId { get; set; }
        public string AccountCode { get; set; } = string.Empty;
        public string AccountName { get; set; } = string.Empty;
        public int PeriodId { get; set; }
        public decimal BudgetedAmount { get; set; }
        public decimal ActualAmount { get; set; }
        public decimal Variance { get; set; }
    }

    // Retrofit 2026-07-22 - Accounting_System_Design_LKAS.md Section 11.7. Replaces the
    // 2026-07-21 VAT/WHT/NBT per-tax_code summary wholesale, under the same TaxSummary
    // reportType name - a full corporate Income Tax Computation, current tax only (no deferred
    // tax anywhere in this schema). The superseded design is kept in the design doc marked
    // Section 11.7 (dagger) for reference only - not implemented here.
    public class IncomeTaxComputationDto
    {
        public DateOnly PeriodStart { get; set; }
        public DateOnly PeriodEnd { get; set; }
        public decimal ProfitBeforeTax { get; set; }
        public decimal NonDeductibleExpenses { get; set; }
        public decimal AllowableDeductions { get; set; }
        public decimal AdjustedBusinessProfit { get; set; }
        public decimal OtherTaxableIncome { get; set; }
        public decimal AssessableIncome { get; set; }
        public decimal QualifyingPaymentsReliefs { get; set; }
        public decimal TaxableIncome { get; set; }
        public decimal TaxRatePercent { get; set; }
        public decimal CorporateIncomeTax { get; set; }
        public decimal SurchargeAmount { get; set; }
        public decimal GrossTaxLiability { get; set; }
        public decimal ApitCredit { get; set; }
        public decimal WhtCredit { get; set; }
        public decimal QuarterlyTaxPayments { get; set; }
        public decimal BalanceTaxPayable { get; set; }
    }
}