#pragma once

#include <QByteArray>
#include <QString>

namespace diality {

// Payload version and flags
static constexpr quint8 kPayloadVersion = 0x01;
static constexpr quint8 kFlagCompressed = 0x01;

// TLV types (all values are UTF-8 strings)
static constexpr quint8 kT_PartId  = 0x01; // string
static constexpr quint8 kT_Lot     = 0x02; // string
static constexpr quint8 kT_ExpDate = 0x03; // string (recommended: YYYYMMDD)
static constexpr quint8 kT_Serial  = 0x04; // string

struct ParsedFields {
    QString partId;
    QString lot;
    QString exp;    // keep as string (device can validate/format)
    QString serial;
};

QByteArray buildTlvPayload(
    const QString& partId,
    const QString& lot,
    const QString& exp,
    const QString& serial,
    bool enableCompression,
    bool* outCompressed,
    QString* outError
);

bool parseTlvPayload(
    const QByteArray& plaintext,
    ParsedFields* outFields,
    QString* outError
);

// Parse a simple key-value input:
//   PID=...|LOT=...|EXP=...|SN=...
// Accepts any string values (trimmed). Case-insensitive keys.
bool parseKeyValueInput(
    const QString& input,
    QString* outPartId,
    QString* outLot,
    QString* outExp,
    QString* outSerial,
    QString* outError
);

} // namespace diality