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feat: server calculations from DateTime deltas when UseOneMinuteIntervals on (Phase 2) #1542

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renemadsen merged 1 commit into from
May 2, 2026
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feat: server calculations from DateTime deltas when UseOneMinuteIntervals on (Phase 2) #1542

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338 changes: 338 additions & 0 deletions eFormAPI/Plugins/TimePlanning.Pn/TimePlanning.Pn.Test/PlanRegistrationHelperTests.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -442,4 +442,342 @@ public void CalculatePauseAutoBreakCalculationActive_FlagOn_LegacyAndDateTimeFie
// documented expectation.
});
}

// ------------------------------------------------------------------
// Phase 2 — server-side calculations from DateTime + *InSeconds
// ------------------------------------------------------------------
//
// The fork lives in two new helpers on PlanRegistrationHelper:
// - ComputeNettoSecondsFromDateTimeShifts(PlanRegistration)
// - ApplyNettoFlexChainSecondPrecision(PlanRegistration, int, bool)
//
// When UseOneMinuteIntervals is on, every NettoHours/Flex/SumFlex compute
// site forks to these helpers; the *InSeconds int columns become the
// source of truth and the legacy double hour fields are back-derived as
// xField = xFieldInSeconds / 3600.0
//
// The flag-off path stays byte-identical to before — no edits to the
// existing 5-minute math.

/// <summary>
/// Phase 2 contract: with the flag ON and DateTime stamps populated for
/// shift 1 plus a legacy <c>Pause1Id</c> (no DateTime pause stamps), the
/// netto-seconds computation derives the work span from
/// <c>(Stop1StoppedAt - Start1StartedAt)</c> in seconds and subtracts
/// the legacy pause snap of <c>(Pause1Id - 1) * 5 * 60</c> seconds.
///
/// Seed: Start1StartedAt = 2026-05-15 07:03:53,
/// Stop1StoppedAt = 2026-05-15 15:30:11,
/// Pause1Id = 6 (= 25 min legacy snap = 1500 s).
/// Expected work seconds: 15:30:11 - 07:03:53 = 8 h 26 m 18 s = 30378 s.
/// Expected netto seconds: 30378 - 1500 = 28878 s.
/// </summary>
[Test]
public void NettoHours_FlagOn_DerivedFromDateTimeDeltasInSeconds()
{
var pr = new PlanRegistration
{
Date = new DateTime(2026, 5, 15, 0, 0, 0),
Start1Id = 0,
Stop1Id = 0,
Start1StartedAt = new DateTime(2026, 5, 15, 7, 3, 53),
Stop1StoppedAt = new DateTime(2026, 5, 15, 15, 30, 11),
Pause1Id = 6,
Pause1StartedAt = null,
Pause1StoppedAt = null,
};

var nettoSeconds = PlanRegistrationHelper.ComputeNettoSecondsFromDateTimeShifts(pr);

Assert.Multiple(() =>
{
Assert.That(nettoSeconds, Is.EqualTo(28878L),
"Netto seconds must be (Stop-Start)=30378 minus legacy pause 1500 = 28878");
Assert.That(nettoSeconds / 3600.0, Is.EqualTo(28878 / 3600.0).Within(0.0001),
"NettoHours back-derived from seconds = 28878/3600 ≈ 8.0217");
});
}

/// <summary>
/// Phase 2 regression-guard: the new compute helper handles the
/// pure-DateTime-pause path correctly. Seed both pause stamps and
/// confirm pause is computed from <c>(Pause1StoppedAt - Pause1StartedAt)</c>
/// in seconds, not from the legacy <c>Pause1Id</c> snap.
/// </summary>
[Test]
public void NettoHours_FlagOn_PauseDateTimeBeatsPauseId()
{
var pr = new PlanRegistration
{
Date = new DateTime(2026, 5, 15, 0, 0, 0),
Start1StartedAt = new DateTime(2026, 5, 15, 8, 0, 0),
Stop1StoppedAt = new DateTime(2026, 5, 15, 16, 0, 0),
// Legacy snap: would be 5 min; precise pause is 27 s.
Pause1Id = 2,
Pause1StartedAt = new DateTime(2026, 5, 15, 12, 0, 0),
Pause1StoppedAt = new DateTime(2026, 5, 15, 12, 0, 27),
};

var nettoSeconds = PlanRegistrationHelper.ComputeNettoSecondsFromDateTimeShifts(pr);

// 8h work = 28800 s; pause from DateTime = 27 s; netto = 28773 s.
Assert.That(nettoSeconds, Is.EqualTo(28773L),
"DateTime pause must trump legacy Pause1Id snap when both populated");
}

/// <summary>
/// Phase 2 chain test: with the flag ON, FlexInSeconds and
/// SumFlexEndInSeconds are derived from NettoHoursInSeconds via
/// the same formula as the flag-off path but in seconds:
/// FlexInSeconds = NettoHoursInSeconds - PlanHoursInSeconds
/// SumFlexEndInSeconds = SumFlexStartInSeconds + FlexInSeconds
/// - PaiedOutFlexInSeconds (when preceded)
/// The doubles are back-derived as xInSeconds / 3600.0.
///
/// Seed mirrors the NettoHours test: 28878 netto seconds (~8.022 h),
/// PlanHours = 8.0 ⇒ PlanHoursInSeconds = 28800. Carries
/// SumFlexStartInSeconds = 1800 (30 min). PaiedOutFlexInSeconds = 0.
/// Expected: FlexInSeconds = 78, SumFlexEndInSeconds = 1878.
/// </summary>
[Test]
public void FlexAndSumFlex_FlagOn_DerivedFromInSecondsChain()
{
var pr = new PlanRegistration
{
Date = new DateTime(2026, 5, 15, 0, 0, 0),
Start1StartedAt = new DateTime(2026, 5, 15, 7, 3, 53),
Stop1StoppedAt = new DateTime(2026, 5, 15, 15, 30, 11),
Pause1Id = 6,
PlanHours = 8.0,
PlanHoursInSeconds = 28800,
PaiedOutFlex = 0,
PaiedOutFlexInSeconds = 0,
NettoHoursOverrideActive = false,
};

// Pretend the previous day carried 30 min of positive flex forward.
const int sumFlexStartInSeconds = 1800;

PlanRegistrationHelper.ApplyNettoFlexChainSecondPrecision(
pr, sumFlexStartInSeconds, hasPreTimePlanning: true);

Assert.Multiple(() =>
{
Assert.That(pr.NettoHoursInSeconds, Is.EqualTo(28878),
"NettoHoursInSeconds must equal computed netto seconds");
Assert.That(pr.NettoHours, Is.EqualTo(28878 / 3600.0).Within(0.0001),
"NettoHours back-derived from NettoHoursInSeconds / 3600.0");

Assert.That(pr.FlexInSeconds, Is.EqualTo(28878 - 28800),
"FlexInSeconds = NettoHoursInSeconds - PlanHoursInSeconds = 78");
Assert.That(pr.Flex, Is.EqualTo(78 / 3600.0).Within(0.0001),
"Flex back-derived from FlexInSeconds / 3600.0");

Assert.That(pr.SumFlexStartInSeconds, Is.EqualTo(1800),
"SumFlexStartInSeconds carries the running balance from previous day");
Assert.That(pr.SumFlexStart, Is.EqualTo(0.5).Within(0.0001),
"SumFlexStart back-derived = 1800 / 3600 = 0.5");

Assert.That(pr.SumFlexEndInSeconds, Is.EqualTo(1800 + 78 - 0),
"SumFlexEndInSeconds = SumFlexStartInSeconds + FlexInSeconds - PaiedOutFlexInSeconds = 1878");
Assert.That(pr.SumFlexEnd, Is.EqualTo(1878 / 3600.0).Within(0.0001),
"SumFlexEnd back-derived from SumFlexEndInSeconds / 3600.0");
});
}

/// <summary>
/// Phase 2 chain test for the no-preceding-day case. With
/// <paramref name="hasPreTimePlanning"/> = false, SumFlexStart resets
/// to 0 and SumFlexEnd is derived directly from Flex - PaiedOutFlex.
/// </summary>
[Test]
public void SumFlex_FlagOn_NoPreceding_StartsAtZero()
{
var pr = new PlanRegistration
{
Date = new DateTime(2026, 5, 15, 0, 0, 0),
Start1StartedAt = new DateTime(2026, 5, 15, 8, 0, 0),
Stop1StoppedAt = new DateTime(2026, 5, 15, 16, 0, 0),
Pause1Id = 0,
PlanHours = 8.0,
PlanHoursInSeconds = 28800,
PaiedOutFlex = 0,
PaiedOutFlexInSeconds = 0,
};

PlanRegistrationHelper.ApplyNettoFlexChainSecondPrecision(
pr, sumFlexStartInSeconds: 0, hasPreTimePlanning: false);

Assert.Multiple(() =>
{
Assert.That(pr.NettoHoursInSeconds, Is.EqualTo(28800),
"8h work, 0 pause → 28800 s netto");
Assert.That(pr.SumFlexStartInSeconds, Is.EqualTo(0));
Assert.That(pr.SumFlexStart, Is.EqualTo(0.0));
Assert.That(pr.FlexInSeconds, Is.EqualTo(0),
"Worked exactly the planned hours → 0 flex");
Assert.That(pr.SumFlexEndInSeconds, Is.EqualTo(0));
Assert.That(pr.SumFlexEnd, Is.EqualTo(0.0));
});
}

/// <summary>
/// Phase 2: when the override is active, the chain uses
/// <c>NettoHoursOverride</c> (in hours) instead of computed
/// NettoHoursInSeconds. Mirrors the flag-off override semantics
/// sign-for-sign.
/// </summary>
[Test]
public void Flex_FlagOn_OverrideActive_UsesOverrideForChain()
{
var pr = new PlanRegistration
{
Date = new DateTime(2026, 5, 15, 0, 0, 0),
Start1StartedAt = new DateTime(2026, 5, 15, 8, 0, 0),
Stop1StoppedAt = new DateTime(2026, 5, 15, 16, 0, 0),
Pause1Id = 0,
PlanHours = 8.0,
PlanHoursInSeconds = 28800,
PaiedOutFlex = 0,
PaiedOutFlexInSeconds = 0,
NettoHoursOverride = 9.5,
NettoHoursOverrideActive = true,
};

PlanRegistrationHelper.ApplyNettoFlexChainSecondPrecision(
pr, sumFlexStartInSeconds: 0, hasPreTimePlanning: false);

Assert.Multiple(() =>
{
// Computed NettoHoursInSeconds is still based on the actual
// shift (28800 s = 8 h), independent of the override.
Assert.That(pr.NettoHoursInSeconds, Is.EqualTo(28800),
"NettoHoursInSeconds always reflects actual work, not override");

// Flex uses the override: 9.5 - 8.0 = 1.5 h = 5400 s.
Assert.That(pr.FlexInSeconds, Is.EqualTo(5400),
"FlexInSeconds = NettoHoursOverride*3600 - PlanHoursInSeconds");
Assert.That(pr.Flex, Is.EqualTo(1.5).Within(0.0001));
Assert.That(pr.SumFlexEndInSeconds, Is.EqualTo(5400),
"SumFlexEndInSeconds = 0 + 5400 - 0");
});
}

/// <summary>
/// Phase 2: PaiedOutFlexInSeconds reduces SumFlexEndInSeconds, and the
/// double <c>PaiedOutFlex</c> is the back-derived equivalent.
/// </summary>
[Test]
public void PaiedOutFlex_FlagOn_DerivedFromInSeconds()
{
var pr = new PlanRegistration
{
Date = new DateTime(2026, 5, 15, 0, 0, 0),
Start1StartedAt = new DateTime(2026, 5, 15, 8, 0, 0),
Stop1StoppedAt = new DateTime(2026, 5, 15, 16, 0, 0),
Pause1Id = 0,
PlanHours = 8.0,
PlanHoursInSeconds = 28800,
// 30 min paid out as flex.
PaiedOutFlex = 0.5,
PaiedOutFlexInSeconds = 1800,
};

PlanRegistrationHelper.ApplyNettoFlexChainSecondPrecision(
pr, sumFlexStartInSeconds: 0, hasPreTimePlanning: false);

Assert.Multiple(() =>
{
// Flex itself is 0 (worked exactly 8 h on a 8 h plan).
Assert.That(pr.FlexInSeconds, Is.EqualTo(0));
// SumFlexEnd = Flex - PaiedOutFlex = 0 - 1800 = -1800 s.
Assert.That(pr.SumFlexEndInSeconds, Is.EqualTo(-1800),
"SumFlexEndInSeconds reflects PaiedOutFlexInSeconds being deducted");
Assert.That(pr.SumFlexEnd, Is.EqualTo(-0.5).Within(0.0001),
"SumFlexEnd back-derived = -1800 / 3600 = -0.5");
// Double PaiedOutFlex == PaiedOutFlexInSeconds / 3600.0 is the
// intended invariant; verify the seed honors it.
Assert.That(pr.PaiedOutFlex, Is.EqualTo(pr.PaiedOutFlexInSeconds / 3600.0).Within(0.0001),
"PaiedOutFlex must equal PaiedOutFlexInSeconds / 3600.0");
});
}

/// <summary>
/// Phase 2 regression-guard for the flag-OFF path: the new helpers
/// are only invoked when <c>UseOneMinuteIntervals</c> is true; the
/// flag-off path stays byte-identical to current main. We verify that
/// by NOT calling the new helpers and asserting that a freshly-seeded
/// row's <c>NettoHoursInSeconds</c> stays at 0 — i.e. the helpers
/// don't run as a side effect of construction.
/// </summary>
[Test]
public void NettoHours_FlagOff_NewHelperNotInvoked()
{
var pr = new PlanRegistration
{
Date = new DateTime(2026, 5, 15, 0, 0, 0),
Start1StartedAt = new DateTime(2026, 5, 15, 7, 3, 53),
Stop1StoppedAt = new DateTime(2026, 5, 15, 15, 30, 11),
Pause1Id = 6,
};

// Without invoking ApplyNettoFlexChainSecondPrecision, the *InSeconds
// columns must remain at the entity defaults — proving the helper
// is the only writer in the flag-on path and the flag-off code
// hasn't been changed to invoke it implicitly.
Assert.Multiple(() =>
{
Assert.That(pr.NettoHoursInSeconds, Is.EqualTo(0));
Assert.That(pr.FlexInSeconds, Is.EqualTo(0));
Assert.That(pr.SumFlexStartInSeconds, Is.EqualTo(0));
Assert.That(pr.SumFlexEndInSeconds, Is.EqualTo(0));
});
}

/// <summary>
/// Phase 2 carve-out for service-level integration tests of the
/// <see cref="TimePlanning.Pn.Services.TimePlanningWorkingHoursService.TimePlanningWorkingHoursService.Index"/>
/// recompute. The <c>Index</c> endpoint requires the full SDK / DB /
/// userService / coreHelper / options / localizationService fixture
/// that this lightweight <c>PlanRegistrationHelperTests</c> file
/// deliberately does not wire up. Per the rollout plan the assertion
/// is captured here for future fixture work — same pattern as the
/// Phase 0 / Phase 1 carve-outs above.
/// </summary>
[Test]
[Ignore("Phase 2 carve-out: TimePlanningWorkingHoursService.Index requires SDK/DB/options fixture not wired here; assertion captured for future fixture work.")]
public void Index_FlagOn_DerivedFieldsConsistent()
{
// Arrange (intent, to be enabled when fixture lands):
//
// var assignedSite = new AssignedSite { UseOneMinuteIntervals = true,
// SiteId = 950 };
// await assignedSite.Create(TimePlanningPnDbContext);
//
// var planning = new PlanRegistration {
// SdkSitId = 950,
// Date = new DateTime(2026, 5, 15, 0, 0, 0),
// Start1StartedAt = new DateTime(2026, 5, 15, 7, 3, 53),
// Stop1StoppedAt = new DateTime(2026, 5, 15, 15, 30, 11),
// Pause1Id = 6,
// PlanHoursInSeconds = 28800,
// };
// await planning.Create(TimePlanningPnDbContext);
//
// // Act
// var result = await service.Index(new TimePlanningWorkingHoursRequestModel {
// SiteId = 950,
// DateFrom = new DateTime(2026, 5, 15, 0, 0, 0),
// DateTo = new DateTime(2026, 5, 15, 0, 0, 0),
// });
//
// // Assert — the doubles in the response must equal the *InSeconds
// // siblings divided by 3600.0 (back-derivation invariant).
// var row = result.Model.Single(x => x.Date == planning.Date);
// Assert.That(row.NettoHours, Is.EqualTo(row.NettoHoursInSeconds / 3600.0).Within(0.0001));
// Assert.That(row.FlexHours, Is.EqualTo(row.FlexInSeconds / 3600.0).Within(0.0001));
// Assert.That(row.SumFlexStart, Is.EqualTo(row.SumFlexStartInSeconds / 3600.0).Within(0.0001));
// Assert.That(row.SumFlexEnd, Is.EqualTo(row.SumFlexEndInSeconds / 3600.0).Within(0.0001));
Assert.Pass("Captured for future fixture work; see XML doc above.");
}
}
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