#!/usr/bin/env node
/**
 * Seed demo data into a running vmall-api (dev).
 * Usage: node scripts/seed-demo.mjs [baseUrl]
 * Idempotent: existing slugs/emails are reused, products are re-published.
 */
const base = process.argv[2] ?? "http://localhost:8080/api";

async function call(method, path, { token, body } = {}) {
  const res = await fetch(base + path, {
    method,
    headers: {
      "content-type": "application/json",
      ...(token ? { authorization: `Bearer ${token}` } : {}),
    },
    body: body ? JSON.stringify(body) : undefined,
  });
  const text = await res.text();
  let data;
  try {
    data = JSON.parse(text);
  } catch {
    data = text;
  }
  return { status: res.status, data };
}

const fail = (what, r) => {
  console.error(`FAILED ${what}: ${r.status}`, r.data);
  process.exit(1);
};

// 1. admin login
let r = await call("POST", "/auth/login", {
  body: { email: "admin@vmall.local", password: "admin1234" },
});
if (r.status !== 200) fail("admin login", r);
const admin = r.data.token;

// 2. demo shop
let shopId;
r = await call("POST", "/admin/shops", {
  token: admin,
  body: {
    name: { en: "Demo Store", zh: "演示店铺" },
    slug: "demo-store",
  },
});
if (r.status === 201) shopId = r.data.id;
else if (r.status === 409) {
  const shops = await call("GET", "/admin/shops", { token: admin });
  shopId = shops.data.find((s) => s.slug === "demo-store").id;
} else fail("create shop", r);

// 3. demo shop owner (register may 409 if exists)
const ownerEmail = "shop@vmall.local";
await call("POST", "/auth/register", {
  body: { email: ownerEmail, password: "shop12345", display_name: "Demo Owner" },
});
r = await call("POST", "/auth/login", {
  body: { email: ownerEmail, password: "shop12345" },
});
if (r.status !== 200) fail("owner login", r);
let owner = r.data.token;
if (r.data.user.role !== "shop_owner") {
  r = await call("PUT", `/admin/users/${r.data.user.id}/role`, {
    token: admin,
    body: { role: "shop_owner", shop_id: shopId },
  });
  if (r.status !== 200) fail("assign owner", r);
  r = await call("POST", "/auth/login", {
    body: { email: ownerEmail, password: "shop12345" },
  });
  owner = r.data.token;
}

// 4. demo customer
await call("POST", "/auth/register", {
  body: { email: "customer@vmall.local", password: "customer123", display_name: "Demo Customer" },
});

// 5. categories
const cats = (await call("GET", "/categories")).data;
const catBy = (slug) => cats.find((c) => c.slug === slug)?.id ?? null;

// 6. products
const products = [
  {
    slug: "wireless-headphones",
    name: { en: "Wireless Headphones", zh: "无线耳机" },
    description: {
      en: "Noise-cancelling over-ear headphones with 40h battery.",
      zh: "降噪头戴式耳机，40 小时续航。",
    },
    category: "electronics",
    price: 7999,
    stock: 25,
    img: "https://picsum.photos/seed/headphones/600/600",
  },
  {
    slug: "mechanical-keyboard",
    name: { en: "Mechanical Keyboard", zh: "机械键盘" },
    description: {
      en: "Hot-swappable 75% keyboard, gasket mount.",
      zh: "热插拔 75% 配列机械键盘，Gasket 结构。",
    },
    category: "electronics",
    price: 12900,
    stock: 40,
    img: "https://picsum.photos/seed/keyboard/600/600",
  },
  {
    slug: "linen-shirt",
    name: { en: "Linen Shirt", zh: "亚麻衬衫" },
    description: { en: "Breathable 100% linen shirt.", zh: "透气纯亚麻衬衫。" },
    category: "fashion",
    price: 4599,
    stock: 60,
    img: "https://picsum.photos/seed/shirt/600/600",
  },
  {
    slug: "ceramic-mug",
    name: { en: "Ceramic Mug", zh: "陶瓷马克杯" },
    description: { en: "Hand-glazed 350ml mug.", zh: "手工上釉 350ml 马克杯。" },
    category: "home-living",
    price: 1999,
    stock: 100,
    img: "https://picsum.photos/seed/mug/600/600",
  },
];

for (const p of products) {
  r = await call("POST", "/shop/products", {
    token: owner,
    body: {
      slug: p.slug,
      name: p.name,
      description: p.description,
      category_id: catBy(p.category),
      images: [p.img],
    },
  });
  let id;
  if (r.status === 201) id = r.data.id;
  else if (r.status === 409) {
    const list = await call("GET", "/shop/products?per_page=100", { token: owner });
    id = list.data.items.find((x) => x.slug === p.slug).id;
  } else fail(`create product ${p.slug}`, r);
  r = await call("POST", `/shop/products/${id}/skus`, {
    token: owner,
    body: {
      sku_code: `${p.slug}-std`,
      price_minor: p.price,
      currency: "USD",
      stock: p.stock,
    },
  });
  if (r.status !== 200) fail(`sku ${p.slug}`, r);
  r = await call("POST", `/shop/products/${id}/publish`, { token: owner });
  if (r.status !== 200) fail(`publish ${p.slug}`, r);
  console.log(`product ready: ${p.slug}`);
}

console.log("\nDemo data seeded.");
console.log("  platform admin : admin@vmall.local / admin1234   (apps/admin :3002)");
console.log("  shop owner     : shop@vmall.local / shop12345    (apps/shop-admin :3001)");
console.log("  customer       : customer@vmall.local / customer123 (apps/mall :3000)");