import { json, error } from '@sveltejs/kit';
import { and, asc, eq } from 'drizzle-orm';
import { db } from '$lib/server/db';
import { pokemon, pokemonEncounters } from '$lib/server/db/schema';

export async function GET({ url }) {
	const gameId = Number(url.searchParams.get('game'));
	const locationId = Number(url.searchParams.get('location'));
	if (![gameId, locationId].every((n) => Number.isSafeInteger(n) && n > 0 && n <= 2147483647))
		error(400, 'Invalid game or location');
	const rows = await db
		.select({
			pokemonId: pokemon.id,
			number: pokemon.number,
			name: pokemon.name,
			type1: pokemon.type1,
			type2: pokemon.type2,
			area: pokemonEncounters.area,
			method: pokemonEncounters.method,
			minLevel: pokemonEncounters.minLevel,
			maxLevel: pokemonEncounters.maxLevel,
			rarity: pokemonEncounters.rarity,
			conditions: pokemonEncounters.conditions,
			form: pokemonEncounters.form,
			note: pokemonEncounters.note
		})
		.from(pokemonEncounters)
		.innerJoin(pokemon, eq(pokemon.id, pokemonEncounters.pokemonId))
		.where(and(eq(pokemonEncounters.gameId, gameId), eq(pokemonEncounters.locationId, locationId)))
		.orderBy(asc(pokemon.number), asc(pokemonEncounters.method), asc(pokemonEncounters.minLevel));
	return json(rows, { headers: { 'Cache-Control': 'public, max-age=3600' } });
}