import type { APIRoute } from 'astro';
import { db } from '../../db/index';
import { priceHistory, skus } from '../../db/schema';
import { eq, inArray } from 'drizzle-orm';

export const prerender = false;

export const GET: APIRoute = async ({ url }) => {
  const cardId = Number(url.searchParams.get('cardId')) || 0;

  // Get all skus for this card
  const cardSkus = await db
    .select()
    .from(skus)
    .where(eq(skus.cardId, cardId));

  if (!cardSkus.length) {
    return new Response(JSON.stringify([]), { headers: { 'Content-Type': 'application/json' } });
  }

  const skuIds = cardSkus.map(s => s.skuId);

  // Fetch price history for all skus
  const history = await db
    .select({
      skuId: priceHistory.skuId,
      calculatedAt: priceHistory.calculatedAt,
      marketPrice: priceHistory.marketPrice,
      condition: skus.condition,
    })
    .from(priceHistory)
    .innerJoin(skus, eq(priceHistory.skuId, skus.skuId))
    .where(inArray(priceHistory.skuId, skuIds))
    .orderBy(priceHistory.calculatedAt);

  return new Response(JSON.stringify(history), {
    headers: { 'Content-Type': 'application/json' }
  });
};