-- shop/main.wo — the bootstrap (app-routing.module's analog): seed the
-- store on first boot, wire routes to the feature controllers, serve.
-- No rendering and no queries here beyond the seed.
--
--   WO_DATA=./data ./target/shop 8080     (run from the shop directory:
--   /assets/* serves from ./assets)
use framework
use framework/router
use product_list
use product_page
use orders
use static_files

fn seed_if_empty() {
  let n = 0;
  for p in from x in Product take 1 select x {
    n = n + 1;
  }
  if n > 0 {
    return;
  }
  insert Product { sku: "keyb-75", name: "75% mechanical keyboard", price: 89.0, stock: 12 };
  insert Product { sku: "mug-wal", name: "WAL-backed coffee mug", price: 14.5, stock: 40 };
  insert Product { sku: "tee-own", name: "Ownership-checked t-shirt", price: 24.9, stock: 25 };
  insert Product { sku: "desk-pad", name: "Deskmat (one binary edition)", price: 19.0, stock: 0 };
}

fn main(args: multi Text) -> Int {
  if len(args) < 1 {
    print_err("usage: shop <port>   (WO_DATA=<dir> makes the store durable)");
    return 2;
  }
  let port = parse_int(args[0]);
  if port == nil {
    print_err("shop: <port> must be a number");
    return 2;
  }

  seed_if_empty();

  let app = App { middleware: [], routes: [] };
  app.use_mw(Mw { m: Logging { pad: 0 } });
  app.get("/",                ListProducts { pad: 0 });
  app.get("/p/:sku",          ShowProduct { pad: 0 });
  app.post("/orders/:sku",    CreateOrder { pad: 0 });
  app.get("/orders",          ListOrders { pad: 0 });
  app.get("/assets/*path",    StaticFiles { dir: "assets" });
  return app.serve("127.0.0.1", port);
}