import { useState, useEffect } from "react";
import { Game, Source, GameList as GameListProto } from "../items";
import { apiFetch } from "./api";

export function GameList() {
  const [games, setGames] = useState<Game[]>([]);
  const [title, setTitle] = useState("");
  const [source, setSource] = useState<Source>(Source.STEAM);
  const [multiplayer, setMultiplayer] = useState(false);
  const [minPlayers, setMinPlayers] = useState(1);
  const [maxPlayers, setMaxPlayers] = useState(1);
  const [price, setPrice] = useState(0);
  const [remoteId, setRemoteId] = useState(0);
  const [message, setMessage] = useState("");

  const fetchGames = () => {
    apiFetch("/api/games")
      .then((res) => res.arrayBuffer())
      .then((buffer) => {
        try {
          const list = GameListProto.decode(new Uint8Array(buffer));
          setGames(list.games);
        } catch (e) {
          console.error("Failed to decode games:", e);
        }
      })
      .catch(console.error);
  };

  useEffect(() => {
    fetchGames();
  }, []);

  const handleSubmit = async (e: React.FormEvent) => {
    e.preventDefault();
    const game = {
      title,
      source,
      multiplayer,
      minPlayers,
      maxPlayers,
      price,
      remoteId,
    };

    try {
      const encoded = Game.encode(game).finish();
      const res = await apiFetch("/api/game", {
        method: "POST",
        headers: {
          "Content-Type": "application/octet-stream",
        },
        body: encoded,
      });

      if (res.ok) {
        setMessage("Game added successfully!");
        setTitle("");
        fetchGames();
        // Reset other fields if needed
      } else {
        setMessage("Failed to add game.");
      }
    } catch (err) {
      console.error(err);
      setMessage("Error adding game.");
    }
  };

  return (
    <div>
      <h2>Add New Game</h2>
      {message && <p>{message}</p>}
      <form
        onSubmit={handleSubmit}
        style={{
          display: "flex",
          flexDirection: "column",
          gap: "1rem",
          maxWidth: "400px",
        }}
      >
        <label>
          Title:
          <input
            type="text"
            value={title}
            onChange={(e) => setTitle(e.target.value)}
            required
          />
        </label>
        <label>
          Source:
          <select
            value={source}
            onChange={(e) => setSource(Number(e.target.value))}
          >
            <option value={Source.STEAM}>Steam</option>
            <option value={Source.ROBLOX}>Roblox</option>
          </select>
        </label>
        <label>
          Multiplayer:
          <input
            type="checkbox"
            checked={multiplayer}
            onChange={(e) => setMultiplayer(e.target.checked)}
          />
        </label>
        <label>
          Min Players:
          <input
            type="number"
            value={minPlayers}
            onChange={(e) => setMinPlayers(Number(e.target.value))}
          />
        </label>
        <label>
          Max Players:
          <input
            type="number"
            value={maxPlayers}
            onChange={(e) => setMaxPlayers(Number(e.target.value))}
          />
        </label>
        <label>
          Price:
          <input
            type="number"
            value={price}
            onChange={(e) => setPrice(Number(e.target.value))}
          />
        </label>
        <label>
          Remote ID:
          <input
            type="number"
            value={remoteId}
            onChange={(e) => setRemoteId(Number(e.target.value))}
          />
        </label>
        <button type="submit">Add Game</button>
      </form>

      <div style={{ marginTop: "2rem" }}>
        <h3>Existing Games</h3>
        <ul>
          {games.map((game) => (
            <li key={game.title}>
              {game.title} ({game.source === Source.STEAM ? "Steam" : "Roblox"})
            </li>
          ))}
        </ul>
      </div>
    </div>
  );
}