HC_APTBS/Models/PumpDefinition.cs

using System.Collections.Generic;
using Peak.Can.Basic;
using TPCANHandle = System.UInt16;

namespace HC_APTBS.Models
{
    /// <summary>
    /// Describes a diesel injection pump model supported by the test bench.
    /// This is the configuration-time definition loaded from the pump database.
    /// Runtime state (current RPM, temperature, test progress) lives in the ViewModel.
    /// </summary>
    public class PumpDefinition
    {
        // ── Identity ──────────────────────────────────────────────────────────────

        /// <summary>Pump identifier code (e.g. "VP44-0460424", loaded from K-Line EEPROM).</summary>
        public string Id { get; set; } = string.Empty;

        /// <summary>Pump model name shown in the UI.</summary>
        public string Model { get; set; } = string.Empty;

        /// <summary>Serial number stamped on the pump body.</summary>
        public string SerialNumber { get; set; } = string.Empty;

        /// <summary>Injector nozzle specification string (parsed from ECU text).</summary>
        public string Injector { get; set; } = string.Empty;

        /// <summary>High-pressure tube specification.</summary>
        public string Tube { get; set; } = string.Empty;

        /// <summary>Solenoid valve specification.</summary>
        public string Valve { get; set; } = string.Empty;

        /// <summary>Electrical supply tension.</summary>
        public string Tension { get; set; } = string.Empty;

        /// <summary>Free-text info line from the pump database.</summary>
        public string Info { get; set; } = string.Empty;

        /// <summary>Raw ECU text returned by ReadEcuInfo over K-Line.</summary>
        public string EcuText { get; set; } = string.Empty;

        /// <summary>Lock-angle (shaft timing reference) in degrees.</summary>
        public string Chaveta { get; set; } = string.Empty;

        // ── Physical parameters ───────────────────────────────────────────────────

        /// <summary>
        /// Injection timing lock angle (degrees) used during the Lock Angle test phase.
        /// </summary>
        public double LockAngle { get; set; }

        /// <summary>Measured lock angle result, populated after the Lock Angle phase completes.</summary>
        public double LockAngleResult { get; set; }

        /// <summary>True if this pump model has a pilot/pre-injection solenoid.</summary>
        public bool HasPreInjection { get; set; }

        /// <summary>True for 4-cylinder pump configurations; false for 6-cylinder.</summary>
        public bool Is4Cylinder { get; set; } = true;

        /// <summary>Unlock protocol variant (0 = none, 1 = type 1, 2 = type 2).</summary>
        public int UnlockType { get; set; }

        /// <summary>
        /// Pump shaft rotation direction.
        /// See <see cref="RotationDirection.LeftName"/> and <see cref="RotationDirection.RightName"/>.
        /// </summary>
        public string Rotation { get; set; } = RotationDirection.RightName;

        // ── CAN configuration ─────────────────────────────────────────────────────

        /// <summary>PCAN channel handle used to communicate with this pump.</summary>
        public TPCANHandle CanChannel { get; set; } = PCANBasic.PCAN_USBBUS1;

        /// <summary>CAN baudrate for this pump (most VP44 units use 500 kbps).</summary>
        public TPCANBaudrate CanBaudrate { get; set; } = TPCANBaudrate.PCAN_BAUD_500K;

        /// <summary>
        /// Parameters specific to this pump, keyed by name for quick lookup.
        /// These are separate from the bench parameters.
        /// </summary>
        public Dictionary<string, CanBusParameter> ParametersByName { get; set; } = new();

        /// <summary>Pump CAN parameters grouped by message ID for frame decoding.</summary>
        public Dictionary<uint, List<CanBusParameter>> ParametersById { get; set; } = new();

        // ── K-Line data ───────────────────────────────────────────────────────────

        /// <summary>
        /// K-Line / KWP2000 data read from the pump ECU EEPROM.
        /// Keys match <see cref="KlineKeys"/> constants.
        /// </summary>
        public Dictionary<string, string> KlineInfo { get; set; } = new();

        /// <summary>
        /// Pump hardware version used to select the correct KWP protocol variant.
        /// 0 = V1 original, 1 = V2, 2 = V3/V4.
        /// </summary>
        public int KwpVersion { get; set; }

        // ── Tests ─────────────────────────────────────────────────────────────────

        /// <summary>Ordered list of test procedures applicable to this pump model.</summary>
        public List<TestDefinition> Tests { get; set; } = new();

        // ── BIP (pre-injection only) ──────────────────────────────────────────────

        /// <summary>
        /// BIP (Begin of Injection Period) status definitions. Non-null only on
        /// pre-injection PSG5-PI pumps (Type 2 T15xxx / Type 3 T18xxx Ford). Null on
        /// standard VP44 pumps. See <see cref="PumpBipDefinition"/>.
        /// </summary>
        public PumpBipDefinition? BipStatus { get; set; }

        // ── Runtime live values ────────────────────────────────────────────────────

        /// <summary>Current fuel quantity feedback value (me) from the pump ECU.</summary>
        public double ValueMe { get; set; }

        /// <summary>Current FBKW (Füllungsbeiwert / fill factor) value from the pump ECU.</summary>
        public double ValueFbkw { get; set; }

        /// <summary>Current pre-injection quantity value from the pump ECU.</summary>
        public double ValuePreIn { get; set; }

        // ── Test helpers ──────────────────────────────────────────────────────────

        /// <summary>
        /// Merges phases from a WL-type test into the first F-type test in the list,
        /// then renames it to WL. This matches the legacy pump database convention
        /// where WL extends the base F test with warm-up phases.
        /// </summary>
        internal void CombineTestWL(TestDefinition wlTest)
        {
            foreach (var existing in Tests)
            {
                if (existing.Name == TestType.F)
                {
                    existing.Phases.AddRange(wlTest.Phases);
                    existing.Name = TestType.Wl;
                    return;
                }
            }
        }

        // ── Helpers ───────────────────────────────────────────────────────────────

        /// <summary>
        /// Parses the injector, tube, valve, and tension fields from the raw ECU text string.
        /// The ECU text format is: "(injector) tube  valve  tension"
        /// </summary>
        public void ParseEcuText()
        {
            if (string.IsNullOrEmpty(EcuText)) return;

            int closeParenPos = EcuText.IndexOf(')') + 1;
            Injector = EcuText[..closeParenPos].Trim();

            var rest = EcuText[closeParenPos..];
            var parts = rest.Split(new[] { "  " }, System.StringSplitOptions.RemoveEmptyEntries);

            if (parts.Length > 0) Tube    = parts[0].Trim();
            if (parts.Length > 1) Valve   = parts[1].Trim();
            if (parts.Length > 2) Tension = parts[2].Trim();
        }
    }
}