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43 lines
1.3 KiB
43 lines
1.3 KiB
import { isSemaEvent, isSemaEventLabel, isSemaIntent, isSemaIntentBinding } from './event'
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import type { SemaActionEvent, SemaIntentBinding } from './types'
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export class SemaInvariantError extends Error {
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constructor(message: string) {
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super(message)
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this.name = 'SemaInvariantError'
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}
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}
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export function validateSemaIntentBinding(binding: SemaIntentBinding, ctx = 'sema.intent'): void {
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if (!isSemaIntentBinding(binding)) {
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throw new SemaInvariantError(`${ctx} is not a valid SemaIntentBinding`)
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}
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const supported = binding.supported ?? []
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if (supported.length === 0) return
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for (const intent of supported) {
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if (!isSemaIntent(intent)) {
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throw new SemaInvariantError(`${ctx}: intent "${String(intent)}" is not a valid SemaIntent`)
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}
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}
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if (!supported.includes(binding.default)) {
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throw new SemaInvariantError(
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`${ctx}: default intent "${binding.default}" must be included in supported intents`
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)
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}
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}
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export function validateSemaEvent(event: SemaActionEvent, ctx = 'sema.event'): void {
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if (isSemaEventLabel(event)) return
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if (!isSemaEvent(event)) {
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throw new SemaInvariantError(`${ctx} is not a valid canonical semantic event`)
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}
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if (!('intent' in event) || typeof event.intent === 'string') return
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validateSemaIntentBinding(event.intent, `${ctx}.intent`)
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}
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