import { readFileSync, writeFileSync } from "fs";

import { join } from "path";

const csvPath = join(import.meta.dir, "../MyEBirdData.csv");

const outPath = join(import.meta.dir, "../src/data/birds.ts");

const csv = readFileSync(csvPath, "utf-8");

const lines = csv.trim().split("\n");

const headers = lines[0].split(",");

const idx = (name: string) => headers.indexOf(name);

const seen = new Set<string>();

const birds: {

	commonName: string;

	scientificName: string;

	date: string;

	location: string;

	state: string;

	photo: string | null;

	summary: string | null;

	wikiUrl: string | null;

}[] = [];

for (const line of lines.slice(1)) {

	const cols: string[] = [];

	let inQuote = false;

	let cur = "";

	for (const ch of line) {

		if (ch === '"') { inQuote = !inQuote; }

		else if (ch === "," && !inQuote) { cols.push(cur); cur = ""; }

		else { cur += ch; }

	}

	cols.push(cur);

	const commonName = cols[idx("Common Name")]?.trim();

	const scientificName = cols[idx("Scientific Name")]?.trim();

	const date = cols[idx("Date")]?.trim();

	const location = cols[idx("Location")]?.trim();

	const state = cols[idx("State/Province")]?.trim();

	if (!commonName || seen.has(commonName)) continue;

	seen.add(commonName);

	birds.push({ commonName, scientificName, date, location, state, photo: null, summary: null, wikiUrl: null });

}

birds.sort((a, b) => a.commonName.localeCompare(b.commonName));

console.log(`Fetching iNaturalist data for ${birds.length} species...`);

for (const bird of birds) {

	const query = encodeURIComponent(bird.commonName);

	const url = `https://api.inaturalist.org/v1/taxa?q=${query}&rank=species&per_page=1`;

	try {

		const res = await fetch(url);

		if (res.ok) {

			const data = await res.json() as any;

			const taxon = data.results?.[0];

			if (taxon) {

				bird.photo = taxon.default_photo?.medium_url ?? null;

				const raw: string | null = taxon.wikipedia_summary ?? null;

				bird.summary = raw ? (raw.length > 220 ? raw.slice(0, 220).replace(/\s\S*$/, "") + "…" : raw) : null;

				bird.wikiUrl = taxon.wikipedia_url ?? null;

			}

		}

	} catch (e) {

		console.warn(`  Failed to fetch ${bird.commonName}: ${e}`);

	}

	console.log(`  ${bird.photo ? "✓" : "✗"} ${bird.commonName}`);

	await new Promise(r => setTimeout(r, 100));

}

const ts = `export type BirdEntry = {

	commonName: string;

	scientificName: string;

	date: string;

	location: string;

	state: string;

	photo: string | null;

	summary: string | null;

	wikiUrl: string | null;

};

export const birds: BirdEntry[] = ${JSON.stringify(birds, null, "\t")};

`;

writeFileSync(outPath, ts);

console.log(`\nWrote ${birds.length} species to ${outPath}`);