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kenneth
bbefd01fe0
Remove priority field from FeedItem and engine-level sorting. Add FeedItemSignals with urgency and timeRelevance fields. Update all source packages to emit signals instead of priority. Ranking is now the post-processing layer's responsibility. Urgency values are unchanged from the old priority values. Co-authored-by: Ona <no-reply@ona.com>
36 lines
1.0 KiB
TypeScript
36 lines
1.0 KiB
TypeScript
import type { Context } from "./context"
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import type { FeedItem } from "./feed"
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/**
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* Produces feed items from an external source.
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*
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* @example
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* ```ts
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* type WeatherItem = FeedItem<"weather", { temp: number }>
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*
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* class WeatherDataSource implements DataSource<WeatherItem> {
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* readonly type = "weather"
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*
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* async query(context: Context): Promise<WeatherItem[]> {
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* const location = contextValue(context, LocationKey)
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* if (!location) return []
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* const data = await fetchWeather(location)
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* return [{
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* id: `weather-${Date.now()}`,
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* type: this.type,
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* timestamp: context.time,
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* data: { temp: data.temperature },
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* signals: { urgency: 0.5, timeRelevance: "ambient" },
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* }]
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* }
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* }
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* ```
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*/
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export interface DataSource<TItem extends FeedItem = FeedItem, TConfig = unknown> {
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/** Unique identifier for this source type */
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readonly type: TItem["type"]
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/** Queries the source and returns feed items */
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query(context: Context, config: TConfig): Promise<TItem[]>
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}
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