import { useEffect, useRef, useState } from "react";
import Sidebar from "./components/layout/Sidebar";
import TopBar from "./components/layout/TopBar";
import PlaySection from "./components/PlaySection";
import ModsSection from "./components/ModsSection";
import SettingsSection from "./components/SettingsSection";
import { versions } from "./lib/launcher";
import { GameVersion } from "./lib/types";
import { MinecraftAccount } from "./lib/auth";
import { getVersion, installPaths, updateVersion } from "./lib/saturn";
import { getCurrentWindow } from "@tauri-apps/api/window";
import { listen } from "@tauri-apps/api/event";
import toast, { Toaster } from "react-hot-toast";

type Section = "play" | "mods" | "settings";

export default function App() {
  const [active, setActive] = useState<Section>("play");
  const [selectedVersion, setSelectedVersion] = useState<GameVersion | null>(
    null,
  );

  const [isVersionDropdownOpen, setIsVersionDropdownOpen] = useState(false);
  const [isAccountDropdownOpen, setIsAccountDropdownOpen] = useState(false);

  const versionRef = useRef<HTMLDivElement | null>(null);
  const accountRef = useRef<HTMLDivElement | null>(null);

  const [accounts, setAccounts] = useState<MinecraftAccount[]>([]);
  const [activeAccount, setActiveAccount] = useState<MinecraftAccount | null>(
    null,
  );

  useEffect(() => {
    function handleClickOutside(event: MouseEvent) {
      const target = event.target as Node;

      // Close version dropdown if clicked outside
      if (versionRef.current && !versionRef.current.contains(target)) {
        setIsVersionDropdownOpen(false);
      }

      // Close account dropdown if clicked outside
      if (accountRef.current && !accountRef.current.contains(target)) {
        setIsAccountDropdownOpen(false);
      }
    }

    document.addEventListener("mousedown", handleClickOutside);

    return () => {
      document.removeEventListener("mousedown", handleClickOutside);
    };
  }, []);

  useEffect(() => {
    (async () => {
      const version = await getVersion();
      setSelectedVersion(versions.find((v) => v.id == version) || null);
    })();
  }, []);

  useEffect(() => {
    if (selectedVersion?.id) updateVersion(selectedVersion?.id);
  }, [selectedVersion]);

  useEffect(() => {
    const window = getCurrentWindow();

    window.show();
  }, []);

  useEffect(() => {
    if (!selectedVersion?.id) return;

    const version = selectedVersion?.id;

    const unlistenInstalls = listen<string[]>("install-paths", (event) => {
      event.payload.forEach((path) => {
        const fileName = path.split(/[\\/]/).pop();

        toast.promise(installPaths(version, [path]), {
          loading: `${fileName}`,
          success: `${fileName}`,
          error: (e) => `${fileName} Failed: ${e}`
        }).catch(console.error);
      });
    });

    return () => {
      unlistenInstalls.then((f) => f());
    };
  }, [selectedVersion]);

  return (
    <>
      <Toaster position="bottom-right" toastOptions={{
        loading: {
          style: {
            backgroundColor: 'var(--color-saturn-panel)',
            color: 'var(--color-saturn-text-primary)'
          }
        },
        success: {
          style: {
            backgroundColor: 'var(--color-saturn-panel)',
            color: 'var(--color-saturn-text-primary)'
          }
        },
        error: {
          style: {
            backgroundColor: 'var(--color-saturn-panel)',
            color: 'var(--color-saturn-text-primary)'
          }
        }
      }} />

      <div className="flex h-screen">
        <Sidebar active={active} setActive={setActive} />

        <main className="flex-1 flex flex-col">
          <TopBar
            versions={versions}
            selectedVersion={selectedVersion}
            setSelectedVersion={setSelectedVersion}
            isVersionDropdownOpen={isVersionDropdownOpen}
            setIsVersionDropdownOpen={setIsVersionDropdownOpen}
            isAccountDropdownOpen={isAccountDropdownOpen}
            setIsAccountDropdownOpen={setIsAccountDropdownOpen}
            versionRef={versionRef}
            accountRef={accountRef}
            accounts={accounts}
            setAccounts={setAccounts}
            activeAccount={activeAccount}
            setActiveAccount={setActiveAccount}
          />

          <div className="flex-1 p-8 overflow-y-scroll">
            {active === "play" && (
              <PlaySection version={selectedVersion} account={activeAccount} />
            )}
            {active === "mods" && selectedVersion && (
              <ModsSection version={selectedVersion} />
            )}
            {active === "settings" && <SettingsSection />}
          </div>
        </main>
      </div>
    </>
  );
}