import { CompareEnginesOptions, CompareEnginesResult } from "./types.js";
import { fetchGoogleData, fetchBingData } from "./adapters.js";
import { normalizeGoogleRows, normalizeBingRows } from "./normalizer.js";
import { compareRows } from "./comparator.js";
import { generateSignals } from "./signals.js";
export async function compareEngines(options: CompareEnginesOptions): Promise<CompareEnginesResult> {
// 1. Fetch raw data in parallel
const [googleRaw, bingRaw] = await Promise.all([
fetchGoogleData(options),
fetchBingData(options)
]);
// 2. Normalize
const googleNormalized = normalizeGoogleRows(googleRaw);
const bingNormalized = normalizeBingRows(bingRaw);
// 3. Compare
const { rows, summary } = compareRows(googleNormalized, bingNormalized);
// 4. Generate Signals and Filter
const minImpressions = options.minImpressions || 0;
const minClicks = options.minClicks || 0;
const enrichedRows = rows
.filter(row => {
const maxImpressions = Math.max(row.google.impressions, row.bing.impressions);
const maxClicks = Math.max(row.google.clicks, row.bing.clicks);
return maxImpressions >= minImpressions && maxClicks >= minClicks;
})
.map(row => {
row.signals = generateSignals(row);
return row;
});
return {
siteUrl: options.siteUrl,
dimension: options.dimension,
startDate: options.startDate,
endDate: options.endDate,
summary,
rows: enrichedRows
};
}
