engine: realistic config bounds, enforced and served

ConfigBounds (students 10-500, edgesPerNode 1-8, forwardProb 0-0.9,
triangleProb 0-1) caps what RunScenario accepts: a student does not
keep 150 close friendships and a guaranteed forward is not a real
base rate. numEducated gains its missing upper limit (numStudents).
Bounds-side validation also protects the public server from absurd
numStudents values. GET /api/config/default now returns
{config, bounds} so the frontend can drive its controls from the
same numbers; the frontend does not call it yet, so this commit
changes no UI behaviour.
This commit is contained in:
Justin Visser 2026-06-11 15:54:07 +02:00
parent 232faf892e
commit bd890384e5
7 changed files with 194 additions and 15 deletions

View file

@ -1,5 +1,5 @@
// Code generated by tygo. DO NOT EDIT.
import type { Config, Result, Strategy } from "./engine";
import type { Bounds, Config, Result, Strategy } from "./engine";
//////////
// source: api.go
@ -9,6 +9,15 @@ thin on purpose: decode, run the engine, encode. All validation lives in
the engine; the API only translates errors into status codes.
*/
/**
* DefaultConfigResponse is the body of GET /api/config/default: the
* default world plus the engine's field bounds, so the frontend drives
* its controls and clamping from the same numbers the engine enforces.
*/
export interface DefaultConfigResponse {
config: Config;
bounds: Bounds;
}
/**
* ComparisonResponse bundles what the dashboard needs to render one
* comparison: the config that was run, echoed back so frontend state stays

View file

@ -27,6 +27,33 @@ export interface Config {
thresholdSeed: number /* uint64 */;
educationSeed: number /* uint64 */; // used by the random strategy only
}
/**
* IntBounds is an inclusive allowed range for an integer Config field.
*/
export interface IntBounds {
min: number /* int */;
max: number /* int */;
}
/**
* FloatBounds is an inclusive allowed range for a float Config field.
*/
export interface FloatBounds {
min: number /* float64 */;
max: number /* float64 */;
}
/**
* Bounds gives the allowed range for every absolute Config field. These
* are realism limits, not mathematical ones: a student does not keep 150
* close friendships, and a guaranteed forward is not a plausible base
* rate. numEducated and origin are relational (0..numStudents and
* 0..numStudents-1) and therefore not listed; seeds are unrestricted.
*/
export interface Bounds {
numStudents: IntBounds;
edgesPerNode: IntBounds;
triangleProb: FloatBounds;
forwardProb: FloatBounds;
}
/**
* Result is the outcome of one scenario run.
*/