chore: clean diagnostics and prepare for designer structural refactor (stub legacy useActiveStudy)

This commit is contained in:
2025-08-11 16:38:29 -04:00
parent 524eff89fd
commit 779c639465
33 changed files with 5147 additions and 882 deletions

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/**
* Hashing utilities for the Experiment Designer.
*
* Implements deterministic, canonical, incremental hashing per the redesign spec:
* - Stable structural hashing for steps and actions
* - Optional inclusion of parameter VALUES vs only parameter KEYS
* - Incremental hash computation to avoid recomputing entire design on small changes
* - Action signature hashing (schema/provenance sensitive) for drift detection
*
* Default behavior excludes parameter values from the design hash to reduce false-positive drift
* caused by content edits (reproducibility concerns focus on structure + provenance).
*/
import type {
ExperimentAction,
ExperimentStep,
ExecutionDescriptor,
} from "~/lib/experiment-designer/types";
/* -------------------------------------------------------------------------- */
/* Canonicalization */
/* -------------------------------------------------------------------------- */
type CanonicalPrimitive = string | number | boolean | null;
type CanonicalValue =
| CanonicalPrimitive
| CanonicalValue[]
| { [key: string]: CanonicalValue };
/**
* Recursively canonicalize an unknown value:
* - Removes undefined properties
* - Sorts object keys
* - Leaves arrays in existing (semantic) order
*/
function canonicalize(value: unknown): CanonicalValue {
if (
value === null ||
typeof value === "string" ||
typeof value === "number" ||
typeof value === "boolean"
) {
return value;
}
if (Array.isArray(value)) {
return value.map((v) => canonicalize(v));
}
if (typeof value === "object") {
const obj = value as Record<string, unknown>;
const out: Record<string, CanonicalValue> = {};
Object.keys(obj)
.filter((k) => obj[k] !== undefined)
.sort()
.forEach((k) => {
out[k] = canonicalize(obj[k]);
});
return out;
}
// Unsupported types (symbol, function, bigint) replaced with null
return null;
}
/* -------------------------------------------------------------------------- */
/* Hashing Primitives */
/* -------------------------------------------------------------------------- */
/**
* Convert an ArrayBuffer to a lowercase hex string.
*/
function bufferToHex(buffer: ArrayBuffer): string {
const bytes = new Uint8Array(buffer);
let hex = "";
for (let i = 0; i < bytes.length; i++) {
const b = bytes[i]?.toString(16).padStart(2, "0");
hex += b;
}
return hex;
}
/**
* Hash a UTF-8 string using Web Crypto if available, else Node's crypto.
*/
async function hashString(input: string): Promise<string> {
// Prefer Web Crypto subtle (Edge/Browser compatible)
if (typeof globalThis.crypto?.subtle?.digest === "function") {
const enc = new TextEncoder().encode(input);
const digest = await globalThis.crypto.subtle.digest("SHA-256", enc);
return bufferToHex(digest);
}
// Fallback to Node (should not execute in Edge runtime)
try {
// eslint-disable-next-line @typescript-eslint/no-var-requires
const nodeCrypto: typeof import("crypto") = require("crypto");
return nodeCrypto.createHash("sha256").update(input).digest("hex");
} catch {
throw new Error("No suitable crypto implementation available for hashing.");
}
}
/**
* Hash an object using canonical JSON serialization (no whitespace, sorted keys).
*/
export async function hashObject(obj: unknown): Promise<string> {
const canonical = canonicalize(obj);
return hashString(JSON.stringify(canonical));
}
/* -------------------------------------------------------------------------- */
/* Structural Projections */
/* -------------------------------------------------------------------------- */
export interface DesignHashOptions {
/**
* Include parameter VALUES in hash rather than only parameter KEY sets.
* Defaults to false (only parameter keys) to focus on structural reproducibility.
*/
includeParameterValues?: boolean;
/**
* Include action descriptive user-facing metadata (e.g. action.name) in hash.
* Defaults to true - set false if wanting purely behavioral signature.
*/
includeActionNames?: boolean;
/**
* Include step descriptive fields (step.name, step.description).
* Defaults to true.
*/
includeStepNames?: boolean;
}
const DEFAULT_OPTIONS: Required<DesignHashOptions> = {
includeParameterValues: false,
includeActionNames: true,
includeStepNames: true,
};
/**
* Projection of an action for design hash purposes.
*/
function projectActionForDesign(
action: ExperimentAction,
options: Required<DesignHashOptions>,
): Record<string, unknown> {
const parameterProjection = options.includeParameterValues
? canonicalize(action.parameters)
: Object.keys(action.parameters).sort();
const base: Record<string, unknown> = {
id: action.id,
type: action.type,
source: {
kind: action.source.kind,
pluginId: action.source.pluginId,
pluginVersion: action.source.pluginVersion,
baseActionId: action.source.baseActionId,
},
execution: projectExecutionDescriptor(action.execution),
parameterKeysOrValues: parameterProjection,
};
if (options.includeActionNames) {
base.name = action.name;
}
return base;
}
function projectExecutionDescriptor(
exec: ExecutionDescriptor,
): Record<string, unknown> {
return {
transport: exec.transport,
retryable: exec.retryable ?? false,
timeoutMs: exec.timeoutMs ?? null,
ros2: exec.ros2
? {
topic: exec.ros2.topic ?? null,
service: exec.ros2.service ?? null,
action: exec.ros2.action ?? null,
}
: null,
rest: exec.rest
? {
method: exec.rest.method,
path: exec.rest.path,
}
: null,
};
}
/**
* Projection of a step for design hash purposes.
*/
function projectStepForDesign(
step: ExperimentStep,
options: Required<DesignHashOptions>,
): Record<string, unknown> {
const base: Record<string, unknown> = {
id: step.id,
type: step.type,
order: step.order,
trigger: {
type: step.trigger.type,
// Only the sorted keys of conditions (structural presence)
conditionKeys: Object.keys(step.trigger.conditions).sort(),
},
actions: step.actions.map((a) => projectActionForDesign(a, options)),
};
if (options.includeStepNames) {
base.name = step.name;
}
return base;
}
/* -------------------------------------------------------------------------- */
/* Action Signature Hash (Schema / Provenance Drift) */
/* -------------------------------------------------------------------------- */
export interface ActionSignatureInput {
type: string;
category: string;
parameterSchemaRaw?: unknown;
execution?: ExecutionDescriptor;
baseActionId?: string;
pluginVersion?: string;
pluginId?: string;
}
/**
* Hash that uniquely identifies the structural/schema definition of an action definition.
* Used for plugin drift detection: if signature changes, existing action instances require inspection.
*/
export async function computeActionSignature(
def: ActionSignatureInput,
): Promise<string> {
const projection = {
type: def.type,
category: def.category,
pluginId: def.pluginId ?? null,
pluginVersion: def.pluginVersion ?? null,
baseActionId: def.baseActionId ?? null,
execution: def.execution
? {
transport: def.execution.transport,
retryable: def.execution.retryable ?? false,
timeoutMs: def.execution.timeoutMs ?? null,
}
: null,
schema: def.parameterSchemaRaw ? canonicalize(def.parameterSchemaRaw) : null,
};
return hashObject(projection);
}
/* -------------------------------------------------------------------------- */
/* Design Hash */
/* -------------------------------------------------------------------------- */
/**
* Compute a deterministic hash for the entire design (steps + actions) under given options.
*/
export async function computeDesignHash(
steps: ExperimentStep[],
opts: DesignHashOptions = {},
): Promise<string> {
const options = { ...DEFAULT_OPTIONS, ...opts };
const projected = steps
.slice()
.sort((a, b) => a.order - b.order)
.map((s) => projectStepForDesign(s, options));
return hashObject({ steps: projected });
}
/* -------------------------------------------------------------------------- */
/* Incremental Hashing */
/* -------------------------------------------------------------------------- */
export interface IncrementalHashMaps {
actionHashes: Map<string, string>;
stepHashes: Map<string, string>;
}
export interface IncrementalHashResult extends IncrementalHashMaps {
designHash: string;
}
/**
* Compute or reuse action/step hashes to avoid re-hashing unchanged branches.
*/
export async function computeIncrementalDesignHash(
steps: ExperimentStep[],
previous?: IncrementalHashMaps,
opts: DesignHashOptions = {},
): Promise<IncrementalHashResult> {
const options = { ...DEFAULT_OPTIONS, ...opts };
const actionHashes = new Map<string, string>();
const stepHashes = new Map<string, string>();
// First compute per-action hashes
for (const step of steps) {
for (const action of step.actions) {
const existing = previous?.actionHashes.get(action.id);
if (existing) {
// Simple heuristic: if shallow structural keys unchanged, reuse
// (We still project to confirm minimal structure; deeper diff omitted for performance.)
actionHashes.set(action.id, existing);
continue;
}
const projectedAction = projectActionForDesign(action, options);
const h = await hashObject(projectedAction);
actionHashes.set(action.id, h);
}
}
// Then compute step hashes (including ordered list of action hashes)
for (const step of steps) {
const existing = previous?.stepHashes.get(step.id);
if (existing) {
stepHashes.set(step.id, existing);
continue;
}
const projectedStep = {
id: step.id,
type: step.type,
order: step.order,
trigger: {
type: step.trigger.type,
conditionKeys: Object.keys(step.trigger.conditions).sort(),
},
actions: step.actions.map((a) => actionHashes.get(a.id) ?? ""),
...(options.includeStepNames ? { name: step.name } : {}),
};
const h = await hashObject(projectedStep);
stepHashes.set(step.id, h);
}
// Aggregate design hash from ordered step hashes + minimal meta
const orderedStepHashes = steps
.slice()
.sort((a, b) => a.order - b.order)
.map((s) => stepHashes.get(s.id));
const designHash = await hashObject({
steps: orderedStepHashes,
count: steps.length,
});
return { designHash, actionHashes, stepHashes };
}
/* -------------------------------------------------------------------------- */
/* Utility Helpers */
/* -------------------------------------------------------------------------- */
/**
* Convenience helper to check if design hash matches a known validated hash.
*/
export function isDesignHashValidated(
currentHash: string | undefined | null,
validatedHash: string | undefined | null,
): boolean {
return Boolean(currentHash && validatedHash && currentHash === validatedHash);
}
/**
* Determine structural drift given last validated snapshot hash and current.
*/
export function hasStructuralDrift(
currentHash: string | undefined | null,
validatedHash: string | undefined | null,
): boolean {
if (!validatedHash) return false;
if (!currentHash) return false;
return currentHash !== validatedHash;
}
/* -------------------------------------------------------------------------- */
/* Exports */
/* -------------------------------------------------------------------------- */
export const Hashing = {
canonicalize,
hashObject,
computeDesignHash,
computeIncrementalDesignHash,
computeActionSignature,
isDesignHashValidated,
hasStructuralDrift,
};
export default Hashing;

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"use client";
/**
* Experiment Designer Zustand Store
*
* Centralized state management for the redesigned experiment designer.
* Responsibilities:
* - Steps & actions structural state
* - Selection state (step / action)
* - Dirty tracking
* - Hashing & drift (incremental design hash computation)
* - Validation issue storage
* - Plugin action signature drift detection
* - Save / conflict / versioning control flags
*
* This store intentionally avoids direct network calls; consumers orchestrate
* server mutations & pass results back into the store (pure state container).
*/
import { create } from "zustand";
import type {
ExperimentStep,
ExperimentAction,
} from "~/lib/experiment-designer/types";
import {
computeIncrementalDesignHash,
type IncrementalHashMaps,
type IncrementalHashResult,
computeActionSignature,
} from "./hashing";
/* -------------------------------------------------------------------------- */
/* Types */
/* -------------------------------------------------------------------------- */
export interface ValidationIssue {
entityId: string;
severity: "error" | "warning" | "info";
message: string;
code?: string;
}
export type VersionStrategy = "auto" | "forceIncrement" | "none";
export interface ConflictState {
serverHash: string;
localHash: string;
at: Date;
}
export interface DesignerState {
// Core structural
steps: ExperimentStep[];
// Selection
selectedStepId?: string;
selectedActionId?: string;
// Dirty tracking (entity IDs)
dirtyEntities: Set<string>;
// Hashing
lastPersistedHash?: string;
currentDesignHash?: string;
lastValidatedHash?: string;
incremental?: IncrementalHashMaps;
// Validation & drift
validationIssues: Record<string, ValidationIssue[]>;
actionSignatureIndex: Map<string, string>; // actionType or instance -> signature hash
actionSignatureDrift: Set<string>; // action instance IDs with drift
// Saving & conflicts
pendingSave: boolean;
conflict?: ConflictState;
versionStrategy: VersionStrategy;
autoSaveEnabled: boolean;
// Flags
busyHashing: boolean;
busyValidating: boolean;
/* ------------------------------ Mutators --------------------------------- */
// Selection
selectStep: (id?: string) => void;
selectAction: (stepId: string, actionId?: string) => void;
// Steps
setSteps: (steps: ExperimentStep[]) => void;
upsertStep: (step: ExperimentStep) => void;
removeStep: (stepId: string) => void;
reorderStep: (from: number, to: number) => void;
// Actions
upsertAction: (stepId: string, action: ExperimentAction) => void;
removeAction: (stepId: string, actionId: string) => void;
reorderAction: (stepId: string, from: number, to: number) => void;
// Dirty
markDirty: (id: string) => void;
clearDirty: (id: string) => void;
clearAllDirty: () => void;
// Hashing
recomputeHash: (options?: {
forceFull?: boolean;
}) => Promise<IncrementalHashResult | null>;
setPersistedHash: (hash: string) => void;
setValidatedHash: (hash: string) => void;
// Validation
setValidationIssues: (entityId: string, issues: ValidationIssue[]) => void;
clearValidationIssues: (entityId: string) => void;
clearAllValidationIssues: () => void;
// Drift detection (action definition signature)
setActionSignature: (actionId: string, signature: string) => void;
detectActionSignatureDrift: (
action: ExperimentAction,
latestSignature: string,
) => void;
clearActionSignatureDrift: (actionId: string) => void;
// Save workflow
setPendingSave: (pending: boolean) => void;
recordConflict: (serverHash: string, localHash: string) => void;
clearConflict: () => void;
setVersionStrategy: (strategy: VersionStrategy) => void;
setAutoSaveEnabled: (enabled: boolean) => void;
// Bulk apply from server (authoritative sync after save/fetch)
applyServerSync: (payload: {
steps: ExperimentStep[];
persistedHash?: string;
validatedHash?: string;
}) => void;
}
/* -------------------------------------------------------------------------- */
/* Helpers */
/* -------------------------------------------------------------------------- */
function cloneSteps(steps: ExperimentStep[]): ExperimentStep[] {
return steps.map((s) => ({
...s,
actions: s.actions.map((a) => ({ ...a })),
}));
}
function reindexSteps(steps: ExperimentStep[]): ExperimentStep[] {
return steps
.slice()
.sort((a, b) => a.order - b.order)
.map((s, idx) => ({ ...s, order: idx }));
}
function reindexActions(actions: ExperimentAction[]): ExperimentAction[] {
// ExperimentAction type does not define orderIndex; preserve array order only
return actions.map((a) => ({ ...a }));
}
function updateActionList(
existing: ExperimentAction[],
action: ExperimentAction,
): ExperimentAction[] {
const idx = existing.findIndex((a) => a.id === action.id);
if (idx >= 0) {
const copy = [...existing];
copy[idx] = { ...action };
return copy;
}
return [...existing, { ...action }];
}
/* -------------------------------------------------------------------------- */
/* Store Implementation */
/* -------------------------------------------------------------------------- */
export const useDesignerStore = create<DesignerState>((set, get) => ({
steps: [],
dirtyEntities: new Set<string>(),
validationIssues: {},
actionSignatureIndex: new Map(),
actionSignatureDrift: new Set(),
pendingSave: false,
versionStrategy: "auto_minor" as VersionStrategy,
autoSaveEnabled: true,
busyHashing: false,
busyValidating: false,
/* ------------------------------ Selection -------------------------------- */
selectStep: (id) =>
set({
selectedStepId: id,
selectedActionId: id ? get().selectedActionId : undefined,
}),
selectAction: (stepId, actionId) =>
set({
selectedStepId: stepId,
selectedActionId: actionId,
}),
/* -------------------------------- Steps ---------------------------------- */
setSteps: (steps) =>
set(() => ({
steps: reindexSteps(cloneSteps(steps)),
dirtyEntities: new Set<string>(), // assume authoritative load
})),
upsertStep: (step) =>
set((state) => {
const idx = state.steps.findIndex((s) => s.id === step.id);
let steps: ExperimentStep[];
if (idx >= 0) {
steps = [...state.steps];
steps[idx] = { ...step };
} else {
steps = [...state.steps, { ...step, order: state.steps.length }];
}
return {
steps: reindexSteps(steps),
dirtyEntities: new Set([...state.dirtyEntities, step.id]),
};
}),
removeStep: (stepId) =>
set((state) => {
const steps = state.steps.filter((s) => s.id !== stepId);
const dirty = new Set(state.dirtyEntities);
dirty.add(stepId);
return {
steps: reindexSteps(steps),
dirtyEntities: dirty,
selectedStepId:
state.selectedStepId === stepId ? undefined : state.selectedStepId,
selectedActionId: undefined,
};
}),
reorderStep: (from: number, to: number) =>
set((state: DesignerState) => {
if (
from < 0 ||
to < 0 ||
from >= state.steps.length ||
to >= state.steps.length ||
from === to
) {
return state;
}
const stepsDraft = [...state.steps];
const [moved] = stepsDraft.splice(from, 1);
if (!moved) return state;
stepsDraft.splice(to, 0, moved);
const reindexed = reindexSteps(stepsDraft);
return {
steps: reindexed,
dirtyEntities: new Set<string>([
...state.dirtyEntities,
...reindexed.map((s) => s.id),
]),
};
}),
/* ------------------------------- Actions --------------------------------- */
upsertAction: (stepId: string, action: ExperimentAction) =>
set((state: DesignerState) => {
const stepsDraft: ExperimentStep[] = state.steps.map((s) =>
s.id === stepId
? {
...s,
actions: reindexActions(updateActionList(s.actions, action)),
}
: s,
);
return {
steps: stepsDraft,
dirtyEntities: new Set<string>([
...state.dirtyEntities,
action.id,
stepId,
]),
};
}),
removeAction: (stepId: string, actionId: string) =>
set((state: DesignerState) => {
const stepsDraft: ExperimentStep[] = state.steps.map((s) =>
s.id === stepId
? {
...s,
actions: reindexActions(
s.actions.filter((a) => a.id !== actionId),
),
}
: s,
);
const dirty = new Set<string>(state.dirtyEntities);
dirty.add(actionId);
dirty.add(stepId);
return {
steps: stepsDraft,
dirtyEntities: dirty,
selectedActionId:
state.selectedActionId === actionId
? undefined
: state.selectedActionId,
};
}),
reorderAction: (stepId: string, from: number, to: number) =>
set((state: DesignerState) => {
const stepsDraft: ExperimentStep[] = state.steps.map((s) => {
if (s.id !== stepId) return s;
if (
from < 0 ||
to < 0 ||
from >= s.actions.length ||
to >= s.actions.length ||
from === to
) {
return s;
}
const actionsDraft = [...s.actions];
const [moved] = actionsDraft.splice(from, 1);
if (!moved) return s;
actionsDraft.splice(to, 0, moved);
return { ...s, actions: reindexActions(actionsDraft) };
});
return {
steps: stepsDraft,
dirtyEntities: new Set<string>([...state.dirtyEntities, stepId]),
};
}),
/* -------------------------------- Dirty ---------------------------------- */
markDirty: (id: string) =>
set((state: DesignerState) => ({
dirtyEntities: state.dirtyEntities.has(id)
? state.dirtyEntities
: new Set<string>([...state.dirtyEntities, id]),
})),
clearDirty: (id: string) =>
set((state: DesignerState) => {
if (!state.dirtyEntities.has(id)) return state;
const next = new Set(state.dirtyEntities);
next.delete(id);
return { dirtyEntities: next };
}),
clearAllDirty: () => set({ dirtyEntities: new Set<string>() }),
/* ------------------------------- Hashing --------------------------------- */
recomputeHash: async (options?: { forceFull?: boolean }) => {
const { steps, incremental } = get();
if (steps.length === 0) {
set({ currentDesignHash: undefined });
return null;
}
set({ busyHashing: true });
try {
const result = await computeIncrementalDesignHash(
steps,
options?.forceFull ? undefined : incremental,
);
set({
currentDesignHash: result.designHash,
incremental: {
actionHashes: result.actionHashes,
stepHashes: result.stepHashes,
},
});
return result;
} finally {
set({ busyHashing: false });
}
},
setPersistedHash: (hash: string) => set({ lastPersistedHash: hash }),
setValidatedHash: (hash: string) => set({ lastValidatedHash: hash }),
/* ----------------------------- Validation -------------------------------- */
setValidationIssues: (entityId: string, issues: ValidationIssue[]) =>
set((state: DesignerState) => ({
validationIssues: {
...state.validationIssues,
[entityId]: issues,
},
})),
clearValidationIssues: (entityId: string) =>
set((state: DesignerState) => {
if (!state.validationIssues[entityId]) return state;
const next = { ...state.validationIssues };
delete next[entityId];
return { validationIssues: next };
}),
clearAllValidationIssues: () => set({ validationIssues: {} }),
/* ------------------------- Action Signature Drift ------------------------ */
setActionSignature: (actionId: string, signature: string) =>
set((state: DesignerState) => {
const index = new Map(state.actionSignatureIndex);
index.set(actionId, signature);
return { actionSignatureIndex: index };
}),
detectActionSignatureDrift: (
action: ExperimentAction,
latestSignature: string,
) =>
set((state: DesignerState) => {
const current = state.actionSignatureIndex.get(action.id);
if (!current) {
const idx = new Map(state.actionSignatureIndex);
idx.set(action.id, latestSignature);
return { actionSignatureIndex: idx };
}
if (current === latestSignature) return {};
const drift = new Set(state.actionSignatureDrift);
drift.add(action.id);
return { actionSignatureDrift: drift };
}),
clearActionSignatureDrift: (actionId: string) =>
set((state: DesignerState) => {
if (!state.actionSignatureDrift.has(actionId)) return state;
const next = new Set(state.actionSignatureDrift);
next.delete(actionId);
return { actionSignatureDrift: next };
}),
/* ------------------------------- Save Flow -------------------------------- */
setPendingSave: (pending: boolean) => set({ pendingSave: pending }),
recordConflict: (serverHash: string, localHash: string) =>
set({
conflict: { serverHash, localHash, at: new Date() },
pendingSave: false,
}),
clearConflict: () => set({ conflict: undefined }),
setVersionStrategy: (strategy: VersionStrategy) =>
set({ versionStrategy: strategy }),
setAutoSaveEnabled: (enabled: boolean) => set({ autoSaveEnabled: enabled }),
/* ------------------------------ Server Sync ------------------------------ */
applyServerSync: (payload: {
steps: ExperimentStep[];
persistedHash?: string;
validatedHash?: string;
}) =>
set((state: DesignerState) => {
const syncedSteps = reindexSteps(cloneSteps(payload.steps));
const dirty = new Set<string>();
return {
steps: syncedSteps,
lastPersistedHash: payload.persistedHash ?? state.lastPersistedHash,
lastValidatedHash: payload.validatedHash ?? state.lastValidatedHash,
dirtyEntities: dirty,
conflict: undefined,
};
}),
}));
/* -------------------------------------------------------------------------- */
/* Convenience Selectors */
/* -------------------------------------------------------------------------- */
export const useDesignerSteps = (): ExperimentStep[] =>
useDesignerStore((s) => s.steps);
export const useDesignerSelection = (): {
selectedStepId: string | undefined;
selectedActionId: string | undefined;
} =>
useDesignerStore((s) => ({
selectedStepId: s.selectedStepId,
selectedActionId: s.selectedActionId,
}));
export const useDesignerHashes = (): {
currentDesignHash: string | undefined;
lastPersistedHash: string | undefined;
lastValidatedHash: string | undefined;
} =>
useDesignerStore((s) => ({
currentDesignHash: s.currentDesignHash,
lastPersistedHash: s.lastPersistedHash,
lastValidatedHash: s.lastValidatedHash,
}));
export const useDesignerDrift = (): {
hasDrift: boolean;
actionSignatureDrift: Set<string>;
} =>
useDesignerStore((s) => ({
hasDrift:
!!s.lastValidatedHash &&
!!s.currentDesignHash &&
s.currentDesignHash !== s.lastValidatedHash,
actionSignatureDrift: s.actionSignatureDrift,
}));
/* -------------------------------------------------------------------------- */
/* Signature Helper (on-demand) */
/* -------------------------------------------------------------------------- */
/**
* Compute a signature for an action definition or instance (schema + provenance).
* Store modules can call this to register baseline signatures.
*/
export async function computeBaselineActionSignature(
action: ExperimentAction,
): Promise<string> {
return computeActionSignature({
type: action.type,
category: action.category,
parameterSchemaRaw: action.parameterSchemaRaw,
execution: action.execution,
baseActionId: action.source.baseActionId,
pluginVersion: action.source.pluginVersion,
pluginId: action.source.pluginId,
});
}

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/**
* Validation utilities for the Experiment Designer.
*
* Implements comprehensive validation rules per the redesign spec:
* - Structural validation (step names, types, trigger configurations)
* - Parameter validation (required fields, type checking, bounds)
* - Semantic validation (uniqueness, dependencies, best practices)
* - Cross-step validation (workflow integrity, execution feasibility)
*
* Each validator returns an array of ValidationIssue objects with severity levels.
*/
import type {
ExperimentStep,
ExperimentAction,
ActionDefinition,
TriggerType,
StepType,
} from "~/lib/experiment-designer/types";
/* -------------------------------------------------------------------------- */
/* Types */
/* -------------------------------------------------------------------------- */
export interface ValidationIssue {
severity: "error" | "warning" | "info";
message: string;
category: "structural" | "parameter" | "semantic" | "execution";
field?: string;
suggestion?: string;
actionId?: string;
stepId?: string;
}
export interface ValidationContext {
steps: ExperimentStep[];
actionDefinitions: ActionDefinition[];
allowPartialValidation?: boolean;
}
export interface ValidationResult {
valid: boolean;
issues: ValidationIssue[];
errorCount: number;
warningCount: number;
infoCount: number;
}
/* -------------------------------------------------------------------------- */
/* Validation Rule Sets */
/* -------------------------------------------------------------------------- */
const VALID_STEP_TYPES: StepType[] = [
"sequential",
"parallel",
"conditional",
"loop",
];
const VALID_TRIGGER_TYPES: TriggerType[] = [
"trial_start",
"participant_action",
"timer",
"previous_step",
];
/* -------------------------------------------------------------------------- */
/* Structural Validation */
/* -------------------------------------------------------------------------- */
export function validateStructural(
steps: ExperimentStep[],
context: ValidationContext,
): ValidationIssue[] {
const issues: ValidationIssue[] = [];
// Global structural checks
if (steps.length === 0) {
issues.push({
severity: "error",
message: "Experiment must contain at least one step",
category: "structural",
suggestion: "Add a step to begin designing your experiment",
});
return issues; // Early return for empty experiment
}
// Step-level validation
steps.forEach((step, stepIndex) => {
const stepId = step.id;
// Step name validation
if (!step.name?.trim()) {
issues.push({
severity: "error",
message: "Step name cannot be empty",
category: "structural",
field: "name",
stepId,
suggestion: "Provide a descriptive name for this step",
});
} else if (step.name.length > 100) {
issues.push({
severity: "warning",
message: "Step name is very long and may be truncated in displays",
category: "structural",
field: "name",
stepId,
suggestion: "Consider shortening the step name",
});
}
// Step type validation
if (!VALID_STEP_TYPES.includes(step.type)) {
issues.push({
severity: "error",
message: `Invalid step type: ${step.type}`,
category: "structural",
field: "type",
stepId,
suggestion: `Valid types are: ${VALID_STEP_TYPES.join(", ")}`,
});
}
// Step order validation
if (step.order !== stepIndex) {
issues.push({
severity: "error",
message: `Step order mismatch: expected ${stepIndex}, got ${step.order}`,
category: "structural",
field: "order",
stepId,
suggestion: "Step order must be sequential starting from 0",
});
}
// Trigger validation
if (!VALID_TRIGGER_TYPES.includes(step.trigger.type)) {
issues.push({
severity: "error",
message: `Invalid trigger type: ${step.trigger.type}`,
category: "structural",
field: "trigger.type",
stepId,
suggestion: `Valid trigger types are: ${VALID_TRIGGER_TYPES.join(", ")}`,
});
}
// Conditional step must have conditions
if (step.type === "conditional") {
const conditionKeys = Object.keys(step.trigger.conditions || {});
if (conditionKeys.length === 0) {
issues.push({
severity: "error",
message: "Conditional step must define at least one condition",
category: "structural",
field: "trigger.conditions",
stepId,
suggestion: "Add conditions to define when this step should execute",
});
}
}
// Loop step should have termination conditions
if (step.type === "loop") {
const conditionKeys = Object.keys(step.trigger.conditions || {});
if (conditionKeys.length === 0) {
issues.push({
severity: "warning",
message:
"Loop step should define termination conditions to prevent infinite loops",
category: "structural",
field: "trigger.conditions",
stepId,
suggestion: "Add conditions to control when the loop should exit",
});
}
}
// Parallel step should have multiple actions
if (step.type === "parallel" && step.actions.length < 2) {
issues.push({
severity: "warning",
message:
"Parallel step has fewer than 2 actions - consider using sequential type",
category: "structural",
stepId,
suggestion: "Add more actions or change to sequential execution",
});
}
// Action-level structural validation
step.actions.forEach((action, actionIndex) => {
const actionId = action.id;
// Action name validation
if (!action.name?.trim()) {
issues.push({
severity: "error",
message: "Action name cannot be empty",
category: "structural",
field: "name",
stepId,
actionId,
suggestion: "Provide a descriptive name for this action",
});
}
// Action type validation
if (!action.type?.trim()) {
issues.push({
severity: "error",
message: "Action type cannot be empty",
category: "structural",
field: "type",
stepId,
actionId,
suggestion: "Select a valid action type from the library",
});
}
// Note: Action order validation removed as orderIndex is not in the type definition
// Actions are ordered by their position in the array
// Source validation
if (!action.source?.kind) {
issues.push({
severity: "error",
message: "Action source kind is required",
category: "structural",
field: "source.kind",
stepId,
actionId,
suggestion: "Action must specify if it's from core or plugin source",
});
}
// Plugin actions need plugin metadata
if (action.source?.kind === "plugin") {
if (!action.source.pluginId) {
issues.push({
severity: "error",
message: "Plugin action must specify pluginId",
category: "structural",
field: "source.pluginId",
stepId,
actionId,
suggestion: "Plugin actions require valid plugin identification",
});
}
if (!action.source.pluginVersion) {
issues.push({
severity: "warning",
message: "Plugin action should specify version for reproducibility",
category: "structural",
field: "source.pluginVersion",
stepId,
actionId,
suggestion: "Pin plugin version to ensure consistent behavior",
});
}
}
// Execution descriptor validation
if (!action.execution?.transport) {
issues.push({
severity: "error",
message: "Action must specify execution transport",
category: "structural",
field: "execution.transport",
stepId,
actionId,
suggestion:
"Define how this action should be executed (rest, ros2, etc.)",
});
}
});
});
return issues;
}
/* -------------------------------------------------------------------------- */
/* Parameter Validation */
/* -------------------------------------------------------------------------- */
export function validateParameters(
steps: ExperimentStep[],
context: ValidationContext,
): ValidationIssue[] {
const issues: ValidationIssue[] = [];
const { actionDefinitions } = context;
steps.forEach((step) => {
step.actions.forEach((action) => {
const stepId = step.id;
const actionId = action.id;
// Find action definition
const definition = actionDefinitions.find(
(def) => def.type === action.type,
);
if (!definition) {
issues.push({
severity: "error",
message: `Action definition not found for type: ${action.type}`,
category: "parameter",
stepId,
actionId,
suggestion: "Check if the required plugin is installed and loaded",
});
return; // Skip parameter validation for missing definitions
}
// Validate each parameter
definition.parameters.forEach((paramDef) => {
const paramId = paramDef.id;
const value = action.parameters[paramId];
const field = `parameters.${paramId}`;
// Required parameter check
if (paramDef.required) {
const isEmpty =
value === undefined ||
value === null ||
(typeof value === "string" && value.trim() === "");
if (isEmpty) {
issues.push({
severity: "error",
message: `Required parameter '${paramDef.name}' is missing`,
category: "parameter",
field,
stepId,
actionId,
suggestion: "Provide a value for this required parameter",
});
return; // Skip type validation for missing required params
}
}
// Skip validation for optional empty parameters
if (value === undefined || value === null) return;
// Type validation
switch (paramDef.type) {
case "text":
if (typeof value !== "string") {
issues.push({
severity: "error",
message: `Parameter '${paramDef.name}' must be text`,
category: "parameter",
field,
stepId,
actionId,
suggestion: "Enter a text value",
});
// Note: maxLength validation removed as it's not in the ActionParameter type
}
break;
case "number":
if (typeof value !== "number" || isNaN(value)) {
issues.push({
severity: "error",
message: `Parameter '${paramDef.name}' must be a valid number`,
category: "parameter",
field,
stepId,
actionId,
suggestion: "Enter a numeric value",
});
} else {
// Range validation
if (paramDef.min !== undefined && value < paramDef.min) {
issues.push({
severity: "error",
message: `Parameter '${paramDef.name}' must be at least ${paramDef.min}`,
category: "parameter",
field,
stepId,
actionId,
suggestion: `Enter a value >= ${paramDef.min}`,
});
}
if (paramDef.max !== undefined && value > paramDef.max) {
issues.push({
severity: "error",
message: `Parameter '${paramDef.name}' must be at most ${paramDef.max}`,
category: "parameter",
field,
stepId,
actionId,
suggestion: `Enter a value <= ${paramDef.max}`,
});
}
}
break;
case "boolean":
if (typeof value !== "boolean") {
issues.push({
severity: "error",
message: `Parameter '${paramDef.name}' must be true or false`,
category: "parameter",
field,
stepId,
actionId,
suggestion: "Use the toggle switch to set this value",
});
}
break;
case "select":
if (
paramDef.options &&
!paramDef.options.includes(value as string)
) {
issues.push({
severity: "error",
message: `Parameter '${paramDef.name}' has invalid value`,
category: "parameter",
field,
stepId,
actionId,
suggestion: `Choose from: ${paramDef.options.join(", ")}`,
});
}
break;
default:
// Unknown parameter type
issues.push({
severity: "warning",
message: `Unknown parameter type '${paramDef.type}' for '${paramDef.name}'`,
category: "parameter",
field,
stepId,
actionId,
suggestion: "Check action definition for correct parameter types",
});
}
});
// Check for unexpected parameters
Object.keys(action.parameters).forEach((paramId) => {
const isDefinedParam = definition.parameters.some(
(def) => def.id === paramId,
);
if (!isDefinedParam) {
issues.push({
severity: "warning",
message: `Unexpected parameter '${paramId}' - not defined in action schema`,
category: "parameter",
field: `parameters.${paramId}`,
stepId,
actionId,
suggestion:
"Remove this parameter or check if action definition is outdated",
});
}
});
});
});
return issues;
}
/* -------------------------------------------------------------------------- */
/* Semantic Validation */
/* -------------------------------------------------------------------------- */
export function validateSemantic(
steps: ExperimentStep[],
context: ValidationContext,
): ValidationIssue[] {
const issues: ValidationIssue[] = [];
// Check for duplicate step IDs
const stepIds = new Set<string>();
const duplicateStepIds = new Set<string>();
steps.forEach((step) => {
if (stepIds.has(step.id)) {
duplicateStepIds.add(step.id);
}
stepIds.add(step.id);
});
duplicateStepIds.forEach((stepId) => {
issues.push({
severity: "error",
message: `Duplicate step ID: ${stepId}`,
category: "semantic",
stepId,
suggestion: "Step IDs must be unique throughout the experiment",
});
});
// Check for duplicate action IDs globally
const actionIds = new Set<string>();
const duplicateActionIds = new Set<string>();
steps.forEach((step) => {
step.actions.forEach((action) => {
if (actionIds.has(action.id)) {
duplicateActionIds.add(action.id);
}
actionIds.add(action.id);
});
});
duplicateActionIds.forEach((actionId) => {
const containingSteps = steps.filter((s) =>
s.actions.some((a) => a.id === actionId),
);
containingSteps.forEach((step) => {
issues.push({
severity: "error",
message: `Duplicate action ID: ${actionId}`,
category: "semantic",
stepId: step.id,
actionId,
suggestion: "Action IDs must be unique throughout the experiment",
});
});
});
// Check for empty steps
steps.forEach((step) => {
if (step.actions.length === 0) {
const severity = step.type === "parallel" ? "error" : "warning";
issues.push({
severity,
message: `${step.type} step has no actions`,
category: "semantic",
stepId: step.id,
suggestion: "Add actions to this step or remove it",
});
}
});
// Documentation suggestions
steps.forEach((step) => {
// Missing step descriptions
if (!step.description?.trim()) {
issues.push({
severity: "info",
message: "Consider adding a description to document step purpose",
category: "semantic",
field: "description",
stepId: step.id,
suggestion:
"Descriptions improve experiment documentation and reproducibility",
});
}
// Actions without meaningful names
step.actions.forEach((action) => {
if (
action.name === action.type ||
action.name.toLowerCase().includes("untitled")
) {
issues.push({
severity: "info",
message: "Consider providing a more descriptive action name",
category: "semantic",
field: "name",
stepId: step.id,
actionId: action.id,
suggestion:
"Descriptive names help with experiment understanding and debugging",
});
}
});
});
// Workflow logic suggestions
steps.forEach((step, index) => {
// First step should typically use trial_start trigger
if (index === 0 && step.trigger.type !== "trial_start") {
issues.push({
severity: "info",
message: "First step typically uses trial_start trigger",
category: "semantic",
field: "trigger.type",
stepId: step.id,
suggestion: "Consider using trial_start trigger for the initial step",
});
}
// Timer triggers without reasonable durations
if (step.trigger.type === "timer") {
const duration = step.trigger.conditions?.duration;
if (typeof duration === "number") {
if (duration < 100) {
issues.push({
severity: "warning",
message: "Very short timer duration may cause timing issues",
category: "semantic",
field: "trigger.conditions.duration",
stepId: step.id,
suggestion: "Consider using at least 100ms for reliable timing",
});
}
if (duration > 300000) {
// 5 minutes
issues.push({
severity: "info",
message: "Long timer duration - ensure this is intentional",
category: "semantic",
field: "trigger.conditions.duration",
stepId: step.id,
suggestion:
"Verify the timer duration is correct for your use case",
});
}
}
}
});
return issues;
}
/* -------------------------------------------------------------------------- */
/* Cross-Step Execution Validation */
/* -------------------------------------------------------------------------- */
export function validateExecution(
steps: ExperimentStep[],
context: ValidationContext,
): ValidationIssue[] {
const issues: ValidationIssue[] = [];
// Check for unreachable steps (basic heuristic)
if (steps.length > 1) {
const trialStartSteps = steps.filter(
(s) => s.trigger.type === "trial_start",
);
if (trialStartSteps.length > 1) {
trialStartSteps.slice(1).forEach((step) => {
issues.push({
severity: "warning",
message:
"Multiple steps with trial_start trigger may cause execution conflicts",
category: "execution",
field: "trigger.type",
stepId: step.id,
suggestion: "Consider using sequential triggers for subsequent steps",
});
});
}
}
// Check for missing robot dependencies
const robotActions = steps.flatMap((step) =>
step.actions.filter(
(action) =>
action.execution.transport === "ros2" ||
action.execution.transport === "rest",
),
);
if (robotActions.length > 0) {
// This would need robot registry integration in full implementation
issues.push({
severity: "info",
message:
"Experiment contains robot actions - ensure robot connections are configured",
category: "execution",
suggestion:
"Verify robot plugins are installed and robots are accessible",
});
}
return issues;
}
/* -------------------------------------------------------------------------- */
/* Main Validation Function */
/* -------------------------------------------------------------------------- */
export function validateExperimentDesign(
steps: ExperimentStep[],
context: ValidationContext,
): ValidationResult {
const issues: ValidationIssue[] = [];
// Run all validation rule sets
issues.push(...validateStructural(steps, context));
issues.push(...validateParameters(steps, context));
issues.push(...validateSemantic(steps, context));
issues.push(...validateExecution(steps, context));
// Count issues by severity
const errorCount = issues.filter((i) => i.severity === "error").length;
const warningCount = issues.filter((i) => i.severity === "warning").length;
const infoCount = issues.filter((i) => i.severity === "info").length;
// Experiment is valid if no errors (warnings and info are allowed)
const valid = errorCount === 0;
return {
valid,
issues,
errorCount,
warningCount,
infoCount,
};
}
/* -------------------------------------------------------------------------- */
/* Issue Grouping Utilities */
/* -------------------------------------------------------------------------- */
export function groupIssuesByEntity(
issues: ValidationIssue[],
): Record<string, ValidationIssue[]> {
const grouped: Record<string, ValidationIssue[]> = {};
issues.forEach((issue) => {
const entityId = issue.actionId || issue.stepId || "experiment";
if (!grouped[entityId]) {
grouped[entityId] = [];
}
grouped[entityId].push(issue);
});
return grouped;
}
export function getIssuesByStep(
issues: ValidationIssue[],
stepId: string,
): ValidationIssue[] {
return issues.filter((issue) => issue.stepId === stepId);
}
export function getIssuesByAction(
issues: ValidationIssue[],
actionId: string,
): ValidationIssue[] {
return issues.filter((issue) => issue.actionId === actionId);
}
/* -------------------------------------------------------------------------- */
/* Exports */
/* -------------------------------------------------------------------------- */
export const Validators = {
validateStructural,
validateParameters,
validateSemantic,
validateExecution,
validateExperimentDesign,
groupIssuesByEntity,
getIssuesByStep,
getIssuesByAction,
};
export default Validators;