#!/usr/bin/env node
// Opens a Gitea issue when the weekly refresh finds models that need a write-up.
//
//   node scripts/notify-new-models.mjs
//
// Reads site/assets/snapshot.json (written by sync-catalog.mjs) and, if the catalogue
// gained models, files an issue listing them so somebody writes the "targeted for"
// descriptions in site/assets/data.js.
//
// Uses GITHUB_API_URL / GITEA_TOKEN (or GITHUB_TOKEN) from the environment.

import { readFileSync } from "node:fs";
import { dirname, resolve } from "node:path";
import { fileURLToPath } from "node:url";

const ROOT = resolve(dirname(fileURLToPath(import.meta.url)), "..");
const snapshot = JSON.parse(readFileSync(resolve(ROOT, "site/assets/snapshot.json"), "utf8"));

const api = process.env.GITHUB_API_URL || "https://git.wallacenet.ca/api/v1";
const repo = process.env.GITHUB_REPOSITORY || "devadmin/OpenCodeGoEvals";
const token = process.env.GITEA_TOKEN || process.env.GITHUB_TOKEN;

if (!snapshot.newModels?.length) {
  console.log("no new models — nothing to report");
  if (snapshot.deltas?.length) {
    console.log("score changes since last refresh:");
    for (const d of snapshot.deltas) console.log(`  ${d.id}: ${d.from} → ${d.to}`);
  }
  process.exit(0);
}

const { CATALOG } = await import(resolve(ROOT, "site/assets/catalog.js"));
const rows = snapshot.newModels
  .map((id) => CATALOG.find((c) => c.id === id))
  .filter(Boolean)
  .map(
    (c) =>
      `| ${c.name} | ${c.lab || "undisclosed"} | $${c.price.in}/${c.price.out} | ${c.ctx ? (c.ctx / 1e6).toFixed(0) + "M" : "n/a"} | ${c.description || "—"} |`
  );

const body = [
  "The weekly catalogue refresh found model(s) that are live in OpenCode Go but have no",
  "hand-written write-up yet.",
  "",
  "| Model | Lab | Price $/1M | Context | Vendor description |",
  "|---|---|---|---|---|",
  ...rows,
  "",
  "To add them:",
  "",
  "1. Add an entry to `site/assets/data.js` under `GO_MODELS` with `id`, `best` (targeting tags),",
  "   `blurb`, `target` and `caveats`.",
  "2. Run `node scripts/build-models-md.mjs` to regenerate `MODELS.md`.",
  "3. Commit — CI publishes the site.",
  "",
  `Detected ${new Date().toISOString().slice(0, 10)}.`
].join("\n");

if (!token) {
  console.log("no token in environment — would file an issue with:\n");
  console.log(body);
  process.exit(0);
}

const res = await fetch(`${api}/repos/${repo}/issues`, {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    Authorization: `token ${token}`,
    "User-Agent": "opencode-go-evals-bot"
  },
  body: JSON.stringify({ title: `New model(s) need write-ups: ${snapshot.newModels.join(", ")}`, body })
});

if (!res.ok) {
  console.error(`could not create issue: ${res.status} ${await res.text()}`);
  process.exit(1);
}
const issue = await res.json();
console.log(`opened issue #${issue.number}: ${issue.html_url}`);