updates

lib/cobblemon_ui/poke_api.ex

@@ -0,0 +1,89 @@
+defmodule CobblemonUi.PokeApi do
+  @moduledoc """
+  Fetches and caches Pokémon type data from PokeAPI.
+
+  Uses an ETS table for fast lookups. Data is fetched once per species
+  and cached for the lifetime of the process.
+  """
+
+  use GenServer
+  require Logger
+
+  @table :poke_api_types_cache
+
+  # ---------------------------------------------------------------------------
+  # Client API
+  # ---------------------------------------------------------------------------
+
+  def start_link(_opts) do
+    GenServer.start_link(__MODULE__, [], name: __MODULE__)
+  end
+
+  @doc """
+  Returns a list of type names (lowercase strings) for the given species.
+
+  Example: `get_types("bulbasaur")` → `["grass", "poison"]`
+  """
+  @spec get_types(String.t()) :: [String.t()]
+  def get_types(species) when is_binary(species) do
+    key = String.downcase(species)
+
+    case :ets.lookup(@table, key) do
+      [{^key, types}] ->
+        types
+
+      [] ->
+        GenServer.call(__MODULE__, {:fetch_types, key}, 15_000)
+    end
+  end
+
+  # ---------------------------------------------------------------------------
+  # Server callbacks
+  # ---------------------------------------------------------------------------
+
+  @impl true
+  def init(_opts) do
+    :ets.new(@table, [:named_table, :set, :public, read_concurrency: true])
+    {:ok, %{}}
+  end
+
+  @impl true
+  def handle_call({:fetch_types, species}, _from, state) do
+    result =
+      case :ets.lookup(@table, species) do
+        [{^species, types}] ->
+          types
+
+        [] ->
+          types = fetch_types(species)
+          :ets.insert(@table, {species, types})
+          types
+      end
+
+    {:reply, result, state}
+  end
+
+  # ---------------------------------------------------------------------------
+  # Private helpers
+  # ---------------------------------------------------------------------------
+
+  defp fetch_types(species) do
+    url = "https://pokeapi.co/api/v2/pokemon/#{species}"
+
+    case Req.get(url) do
+      {:ok, %Req.Response{status: 200, body: %{"types" => types}}} ->
+        types
+        |> Enum.sort_by(fn t -> t["slot"] end)
+        |> Enum.map(fn t -> get_in(t, ["type", "name"]) end)
+        |> Enum.reject(&is_nil/1)
+
+      {:ok, %Req.Response{status: status}} ->
+        Logger.warning("[PokeApi] Type lookup failed for #{species}: HTTP #{status}")
+        []
+
+      {:error, reason} ->
+        Logger.warning("[PokeApi] Type lookup failed for #{species}: #{inspect(reason)}")
+        []
+    end
+  end
+end