using ZB.MOM.WW.OtOpcUa.Driver.AbLegacy.PlcFamilies;

namespace ZB.MOM.WW.OtOpcUa.Driver.AbLegacy;

/// <summary>
///     AB Legacy (PCCC) driver configuration. One instance supports N devices (SLC 500 /
///     MicroLogix / PLC-5 / LogixPccc). Per plan decision #41 AbLegacy ships separately from
///     AbCip because PCCC's file-based addressing (<c>N7:0</c>) and Logix's symbolic addressing
///     (<c>Motor1.Speed</c>) pull the abstraction in different directions.
/// </summary>
public sealed class AbLegacyDriverOptions
{
    public IReadOnlyList<AbLegacyDeviceOptions> Devices { get; init; } = [];
    public IReadOnlyList<AbLegacyTagDefinition> Tags { get; init; } = [];
    public AbLegacyProbeOptions Probe { get; init; } = new();
    public TimeSpan Timeout { get; init; } = TimeSpan.FromSeconds(2);
}

public sealed record AbLegacyDeviceOptions(
    string HostAddress,
    AbLegacyPlcFamily PlcFamily = AbLegacyPlcFamily.Slc500,
    string? DeviceName = null);

/// <summary>
///     One PCCC-backed OPC UA variable. <c>Address</c> is the canonical PCCC file-address
///     string that parses via <see cref="AbLegacyAddress.TryParse(string?)"/>.
/// </summary>
/// <remarks>
///     PR 8 deadband fields:
///     <list type="bullet">
///       <item><c>AbsoluteDeadband</c> — when set, suppresses <c>OnDataChange</c> for numeric
///         tags unless <c>|new - prev| &gt;= AbsoluteDeadband</c>.</item>
///       <item><c>PercentDeadband</c> — when set, suppresses unless
///         <c>|new - prev| &gt;= |prev * Percent / 100|</c>; <c>prev == 0</c> always publishes.</item>
///     </list>
///     Booleans bypass deadband entirely (every transition publishes); strings + status
///     changes always publish; first-seen always publishes; both set → logical-OR (Kepware
///     semantics).
/// </remarks>
public sealed record AbLegacyTagDefinition(
    string Name,
    string DeviceHostAddress,
    string Address,
    AbLegacyDataType DataType,
    bool Writable = true,
    bool WriteIdempotent = false,
    int? ArrayLength = null,
    double? AbsoluteDeadband = null,
    double? PercentDeadband = null);

public sealed class AbLegacyProbeOptions
{
    public bool Enabled { get; init; } = true;
    public TimeSpan Interval { get; init; } = TimeSpan.FromSeconds(5);
    public TimeSpan Timeout { get; init; } = TimeSpan.FromSeconds(2);

    /// <summary>Probe address — defaults to <c>S:0</c> (status file, first word) when null.</summary>
    public string? ProbeAddress { get; init; } = "S:0";
}