Add explicit per-plan gauge temperature offset

test/bean-bro-context.test.js

@@ -34,3 +34,25 @@ test("streaming JSON decoder exposes only reply text and handles split escapes",
  assert.equal(partialReply('{"reply":"392\\u00'),"392");
  assert.equal(partialReply('{"reply":"392\\u00b0F"}'),"392°F");
 });
+test("a manual gauge offset shifts illustrative events exactly once and reaches Bean Bro",()=>{
+ const p=blankPlan();p.fields["1.4"]="8:45";p.fields["4.4"]="1:20";
+ const original=buildPlanCurve(p,computeLedger(p));
+ p.temperatureOffsetF="-50";
+ const shifted=buildPlanCurve(p,computeLedger(p));
+ for(let i=0;i<original.length;i++){
+  assert.ok(Math.abs((shifted[i].tempC-original[i].tempC)*1.8+50)<1e-8);
+  assert.equal(shifted[i].timeS,original[i].timeS);
+ }
+ const ctx=buildPlanChatContext(p);
+ assert.equal(ctx.temperatureOffsetF,-50);
+ assert.equal(ctx.displayedMilestones.find(p=>p.event==="fc").tempF,342);
+ p.temps.fc.tempC="190";p.preheat.tempC="175";p.planActual.fc.actualBt="171.111111";
+ const entered=buildPlanChatContext(p);
+ assert.equal(entered.displayedMilestones.find(p=>p.event==="fc").tempF,374);
+ assert.equal(entered.preheatSetpointF,347);
+ assert.equal(entered.recordedMilestones.find(p=>p.event==="fc").actualBtF,340);
+ p.temperatureOffsetF="";delete p.temps.fc.tempC;
+ assert.deepEqual(buildPlanCurve(p,computeLedger(p)),original);
+ p.temperatureOffsetF="25";
+ assert.equal(buildPlanChatContext(p).displayedMilestones.find(p=>p.event==="fc").tempF,417);
+});