#ifndef TRANSACTION_H
#define TRANSACTION_H

#include <QString>
#include <QDate>
#include <QMetaType>

enum class TransactionType {
    Estimated,
    Actual,
    Reconciliation
};

enum class RecurrenceFrequency {
    None,
    Daily,
    Weekly,
    BiWeekly,
    Monthly,
    Yearly
};

struct Transaction {
    int id;
    QDate date;
    double amount;
    QString account;
    QString category;
    QString description;
    TransactionType type;
    int recurringId; // -1 if not part of recurring series
    int sortOrder;   // For ordering on same date
    bool reconciled; // true if converted from projection to actual
    QString occurrenceKey; // e.g. "2025-01" for monthly, "2025-W03" for weekly
    double expectedAmount; // original projected amount (for variance tracking)
    QDate expectedDate; // original projected date (for variance tracking)
    double expectedBalance; // for reconciliation checkpoints - what bank says
    double calculatedBalance; // for reconciliation checkpoints - what we calculated
    
    Transaction() : id(-1), amount(0.0), type(TransactionType::Estimated), recurringId(-1), sortOrder(0), reconciled(false), expectedAmount(0.0), expectedBalance(0.0), calculatedBalance(0.0) {}
    
    double getBalance() const { return amount; }
};

struct RecurringRule {
    int id;
    QString name;
    RecurrenceFrequency frequency;
    QDate startDate;
    QDate endDate; // Can be null for indefinite
    double amount;
    QString account;
    QString category;
    QString description;
    int dayOfWeek;    // 1-7 for weekly (1=Monday), -1 if not applicable
    int dayOfMonth;   // 1-31 for monthly, -1 if not applicable
    int occurrences;  // Number of times to repeat, -1 for indefinite
    int sortOrder;    // For ordering transactions on same date
    QDate projectionEndDate; // How far into future to generate projections
    
    RecurringRule() : id(-1), frequency(RecurrenceFrequency::None), 
                      amount(0.0), dayOfWeek(-1), dayOfMonth(-1), occurrences(-1), sortOrder(0) {}
};

// Register Transaction for use in QVariant
Q_DECLARE_METATYPE(Transaction)

#endif // TRANSACTION_H