using MeterVault.Core.Domain;
using MeterVault.Core.Normalization;
using MeterVault.Infrastructure.Import;
using static MeterVault.Integration.Tests.Reconciliation.ReconciliationSupport;

namespace MeterVault.Integration.Tests.Reconciliation;

/// <summary>
/// Reconciles the heating-oil tank against the Heizöl sheet (SDD §2.4). The sheet's
/// <c>Differenz Tank</c> (col 9) is the negated actual consumption, already netting deliveries —
/// exactly what the consumable-balance normalizer computes (prevLevel + deliveries − currLevel).
/// The burner runtime meter's Δhours is reconciled against <c>Differenz Betrieb</c> (col 2).
/// </summary>
public sealed class OilReconciliationTests
{
    [Fact]
    public void Tank_consumption_matches_differenz_tank_including_deliveries()
    {
        var staged = Stage(ReferenceProfiles.HeatingOil(), Oil);
        var config = new MeterConfig
        {
            MeterId = ReferenceProfiles.OilTank,
            Mode = MeterMode.ConsumableBalance,
            Unit = "L",
            Tank = new TankConfig
            {
                Capacity = 7000,
                Calibration = new CalibrationCurve(ReferenceProfiles.OilLitresPerCm),
            },
        };

        var computed = ByDate(Normalize(staged, config));
        // Differenz Tank is negative consumption → negate to compare with positive draw.
        var oracle = OracleByDate(ReadRows(Oil), dateColumn: 0, valueColumn: 9, firstDataRow: 4, v => -v);

        // ±2 L covers cm→litre rounding on both ends of each interval.
        AssertReconciles(computed, oracle, tolerance: 2.0, "oil tank", minMatches: 30);
    }

    [Fact]
    public void Burner_delta_hours_match_differenz_betrieb()
    {
        var staged = Stage(ReferenceProfiles.HeatingOil(), Oil);
        var config = new MeterConfig
        {
            MeterId = ReferenceProfiles.Burner,
            Mode = MeterMode.RuntimeCounter,
            Unit = "h",
        };

        var computed = ByDate(Normalize(staged, config));
        var oracle = OracleByDate(ReadRows(Oil), dateColumn: 0, valueColumn: 2, firstDataRow: 4);

        AssertReconciles(computed, oracle, tolerance: 0.5, "burner hours", minMatches: 30);
    }
}