import type { PageServerLoad } from './$types';
import { getClient } from '$lib/server/db/client.js';
import { LocalEmbeddingProvider } from '$lib/server/embeddings/local.provider.js';
import { EmbeddingSettingsDtoMapper } from '$lib/server/mappers/embedding-settings.dto.mapper.js';
import { EmbeddingSettingsService } from '$lib/server/services/embedding-settings.service.js';

export const load: PageServerLoad = async () => {
	const db = getClient();
	
	const service = new EmbeddingSettingsService(db);
	const settings = EmbeddingSettingsDtoMapper.toDto(service.getSettings());

	let localProviderAvailable = false;
	try {
		localProviderAvailable = await new LocalEmbeddingProvider().isAvailable();
	} catch {
		localProviderAvailable = false;
	}

	// Read indexing concurrency setting
	let indexingConcurrency = 2;
	const concurrencyRow = db
		.prepare<[], { value: string }>(
			"SELECT value FROM settings WHERE key = 'indexing.concurrency'"
		)
		.get();
	
	if (concurrencyRow && concurrencyRow.value) {
		try {
			const parsed = JSON.parse(concurrencyRow.value);
			if (typeof parsed === 'object' && parsed !== null && typeof parsed.value === 'number') {
				indexingConcurrency = parsed.value;
			} else if (typeof parsed === 'number') {
				indexingConcurrency = parsed;
			}
		} catch {
			indexingConcurrency = 2;
		}
	}

	return {
		settings,
		localProviderAvailable,
		indexingConcurrency
	};
};