import { childLogger } from "../util/logger.js";
const log = childLogger("preview-match");
/**
 * Try to match a photo message to an archive by:
 * 1. Caption contains the archive baseName (without extension)
 * 2. Photo was posted within ±10 messages (time-window: ±6 hours)
 *
 * Returns the best match (closest in time), or null.
 */
export function matchPreviewToArchive(photos, archives) {
    const results = new Map();
    const TIME_WINDOW_MS = 6 * 60 * 60 * 1000; // 6 hours
    for (const archive of archives) {
        // Normalize the archive base name for matching
        const normalizedBase = normalizeForMatch(archive.baseName);
        if (!normalizedBase)
            continue;
        let bestMatch = null;
        let bestTimeDiff = Infinity;
        for (const photo of photos) {
            const timeDiff = Math.abs(photo.date.getTime() - archive.firstMessageDate.getTime());
            // Must be within time window
            if (timeDiff > TIME_WINDOW_MS)
                continue;
            // Check if the photo caption contains the archive base name
            const normalizedCaption = normalizeForMatch(photo.caption);
            if (!normalizedCaption)
                continue;
            const matches = normalizedCaption.includes(normalizedBase) ||
                normalizedBase.includes(normalizedCaption);
            if (matches && timeDiff < bestTimeDiff) {
                bestMatch = photo;
                bestTimeDiff = timeDiff;
            }
        }
        if (bestMatch) {
            log.debug({ baseName: archive.baseName, photoId: bestMatch.id.toString() }, "Matched preview photo to archive");
            results.set(archive.baseName, bestMatch);
        }
    }
    return results;
}
/**
 * Strip extension, punctuation, and normalize for fuzzy matching.
 */
function normalizeForMatch(input) {
    return input
        .toLowerCase()
        .replace(/\.[a-z0-9]{1,5}$/i, "") // strip extension
        .replace(/[_\-.\s]+/g, " ") // normalize separators
        .trim();
}
//# sourceMappingURL=match.js.map