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⚡ Bolt: Memoize physics calculation #22

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⚡ Bolt: Memoize physics calculation #22

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178 changes: 91 additions & 87 deletions app/page.tsx
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Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
"use client";

import { useState, useEffect } from "react";
import { aircraftList, Aircraft, SavedAircraft } from "../data/aircraft";
import { useState, useEffect, useMemo } from "react";
import { aircraftList, Aircraft, SavedAircraft, EnvelopePoint, Station } from "../data/aircraft";
import ManifestReport from "../components/ManifestReport";
import HangarList from "../components/HangarList";
import SettingsModal from "../components/SettingsModal";
Expand Down Expand Up @@ -177,95 +177,99 @@ export default function Home() {
}, [customEmptyWeight, customEmptyArm, armOverrides, selectedPlane, savedPlanes, view]);

// --- CALCULATION LOGIC ---
let results = {
rampWeight: 0,
rampMoment: 0, // FIX: Initialize rampMoment
takeoffWeight: 0, takeoffMoment: 0, takeoffCG: 0,
landingWeight: 0, landingCG: 0,
isTakeoffSafe: true, isLandingSafe: true,
takeoffIssue: null as string | null, landingIssue: null as string | null,
isGo: true, enduranceHours: 0, enduranceMinutes: 0,
activeEnvelope: [] as any[], maxGross: 0,
fuelArm: 0
};
// ⚡ Bolt: Memoize physics calculation to prevent re-running on unrelated UI updates
const results = useMemo(() => {
let res = {
rampWeight: 0,
rampMoment: 0,
takeoffWeight: 0, takeoffMoment: 0, takeoffCG: 0,
landingWeight: 0, landingCG: 0,
isTakeoffSafe: true, isLandingSafe: true,
takeoffIssue: null as string | null, landingIssue: null as string | null,
isGo: true, enduranceHours: 0, enduranceMinutes: 0,
activeEnvelope: [] as EnvelopePoint[], maxGross: 0,
fuelArm: 0
};

if (selectedPlane) {
let rampWeight = customEmptyWeight;
let rampMoment = customEmptyWeight * customEmptyArm;
let fuelArm = 0;
let totalFuelWeight = 0;

selectedPlane.stations.forEach((station: any) => {
let w = weights[station.id] || 0;
const isFuel = station.id.toLowerCase().includes("fuel");
if (isFuel) {
if (useGallons) w = w * 6;
totalFuelWeight = w;
fuelArm = armOverrides[station.id] !== undefined ? armOverrides[station.id] : station.arm;
}
const arm = armOverrides[station.id] !== undefined ? armOverrides[station.id] : station.arm;
rampWeight += w;
rampMoment += w * arm;
});

customStations.forEach((s) => {
rampWeight += s.weight;
rampMoment += s.weight * s.arm;
});

const taxiWeight = fuel.taxi * 6;
const takeoffWeight = rampWeight - taxiWeight;
const takeoffMoment = rampMoment - (taxiWeight * fuelArm);
const takeoffCG = takeoffMoment / (takeoffWeight || 1);

let landingWeight = takeoffWeight;
let landingCG = takeoffCG;

if (fuel.trip > 0) {
const tripWeight = fuel.trip * 6;
landingWeight = takeoffWeight - tripWeight;
const landingMoment = takeoffMoment - (tripWeight * fuelArm);
landingCG = landingMoment / (landingWeight || 1);
}
if (selectedPlane) {
let rampWeight = customEmptyWeight;
let rampMoment = customEmptyWeight * customEmptyArm;
let fuelArm = 0;
let totalFuelWeight = 0;

selectedPlane.stations.forEach((station: Station) => {
let w = weights[station.id] || 0;
const isFuel = station.id.toLowerCase().includes("fuel");
if (isFuel) {
if (useGallons) w = w * 6;
totalFuelWeight = w;
fuelArm = armOverrides[station.id] !== undefined ? armOverrides[station.id] : station.arm;
}
const arm = armOverrides[station.id] !== undefined ? armOverrides[station.id] : station.arm;
rampWeight += w;
rampMoment += w * arm;
});

const usableTakeoffFuelGal = (totalFuelWeight - taxiWeight) / 6;
let enduranceHours = 0;
let enduranceMinutes = 0;
if (fuel.burn > 0 && usableTakeoffFuelGal > 0) {
const totalHours = usableTakeoffFuelGal / fuel.burn;
enduranceHours = Math.floor(totalHours);
enduranceMinutes = Math.floor((totalHours - enduranceHours) * 60);
}
customStations.forEach((s) => {
rampWeight += s.weight;
rampMoment += s.weight * s.arm;
});

const activeEnvelope = (category === 'utility' && selectedPlane.utilityEnvelope) ? selectedPlane.utilityEnvelope : selectedPlane.envelope;
const maxGross = Math.max(...activeEnvelope.map((p: any) => p.weight));
const isTakeoffInside = isPointInPolygon({ cg: takeoffCG, weight: takeoffWeight }, activeEnvelope);
const isLandingInside = isPointInPolygon({ cg: landingCG, weight: landingWeight }, activeEnvelope);

const takeoffLimits = getCGLimitsAtWeight(takeoffWeight, activeEnvelope);
const landingLimits = getCGLimitsAtWeight(landingWeight, activeEnvelope);

const getFailureReason = (weight: number, cg: number, limits: {minCG: number, maxCG: number} | null) => {
if (weight > maxGross) return `Over Max Gross (${(weight - maxGross).toFixed(0)} lbs)`;
if (!limits) return "Outside Envelope";
if (cg < limits.minCG) return `Fwd Limit Exceeded by ${(limits.minCG - cg).toFixed(1)}"`;
if (cg > limits.maxCG) return `Aft Limit Exceeded by ${(cg - limits.maxCG).toFixed(1)}"`;
return "Outside Envelope";
};
const taxiWeight = fuel.taxi * 6;
const takeoffWeight = rampWeight - taxiWeight;
const takeoffMoment = rampMoment - (taxiWeight * fuelArm);
const takeoffCG = takeoffMoment / (takeoffWeight || 1);

results = {
rampWeight,
rampMoment, // FIX: Pass calculated moment to results
takeoffWeight, takeoffMoment, takeoffCG,
landingWeight, landingCG,
isTakeoffSafe: isTakeoffInside, isLandingSafe: isLandingInside,
takeoffIssue: !isTakeoffInside ? getFailureReason(takeoffWeight, takeoffCG, takeoffLimits) : null,
landingIssue: !isLandingInside ? getFailureReason(landingWeight, landingCG, landingLimits) : null,
isGo: isTakeoffInside && (toggles.flightPlan ? isLandingInside : true),
enduranceHours, enduranceMinutes,
activeEnvelope, maxGross, fuelArm
};
}
let landingWeight = takeoffWeight;
let landingCG = takeoffCG;

if (fuel.trip > 0) {
const tripWeight = fuel.trip * 6;
landingWeight = takeoffWeight - tripWeight;
const landingMoment = takeoffMoment - (tripWeight * fuelArm);
landingCG = landingMoment / (landingWeight || 1);
}

const usableTakeoffFuelGal = (totalFuelWeight - taxiWeight) / 6;
let enduranceHours = 0;
let enduranceMinutes = 0;
if (fuel.burn > 0 && usableTakeoffFuelGal > 0) {
const totalHours = usableTakeoffFuelGal / fuel.burn;
enduranceHours = Math.floor(totalHours);
enduranceMinutes = Math.floor((totalHours - enduranceHours) * 60);
}

const activeEnvelope = (category === 'utility' && selectedPlane.utilityEnvelope) ? selectedPlane.utilityEnvelope : selectedPlane.envelope;
const maxGross = Math.max(...activeEnvelope.map((p: EnvelopePoint) => p.weight));
const isTakeoffInside = isPointInPolygon({ cg: takeoffCG, weight: takeoffWeight }, activeEnvelope);
const isLandingInside = isPointInPolygon({ cg: landingCG, weight: landingWeight }, activeEnvelope);

const takeoffLimits = getCGLimitsAtWeight(takeoffWeight, activeEnvelope);
const landingLimits = getCGLimitsAtWeight(landingWeight, activeEnvelope);

const getFailureReason = (weight: number, cg: number, limits: {minCG: number, maxCG: number} | null) => {
if (weight > maxGross) return `Over Max Gross (${(weight - maxGross).toFixed(0)} lbs)`;
if (!limits) return "Outside Envelope";
if (cg < limits.minCG) return `Fwd Limit Exceeded by ${(limits.minCG - cg).toFixed(1)}"`;
if (cg > limits.maxCG) return `Aft Limit Exceeded by ${(cg - limits.maxCG).toFixed(1)}"`;
return "Outside Envelope";
};

res = {
rampWeight,
rampMoment,
takeoffWeight, takeoffMoment, takeoffCG,
landingWeight, landingCG,
isTakeoffSafe: isTakeoffInside, isLandingSafe: isLandingInside,
takeoffIssue: !isTakeoffInside ? getFailureReason(takeoffWeight, takeoffCG, takeoffLimits) : null,
landingIssue: !isLandingInside ? getFailureReason(landingWeight, landingCG, landingLimits) : null,
isGo: isTakeoffInside && (toggles.flightPlan ? isLandingInside : true),
enduranceHours, enduranceMinutes,
activeEnvelope, maxGross, fuelArm
};
}
return res;
}, [selectedPlane, customEmptyWeight, customEmptyArm, weights, armOverrides, customStations, fuel, useGallons, category, toggles.flightPlan]);

// 1. SHOW LANDING PAGE?
if (showLanding) {
Expand Down
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