import {
  $answerResult,
  $copyRoomCode,
  $createRoom,
  $guessArtist,
  $guessTitle,
  $joinRoom,
  $lobby,
  $nameDisplay,
  $nameLobby,
  $nextBtn,
  $pauseBtn,
  $placeBtn,
  $readyChk,
  $room,
  $roomCode,
  $roomId,
  $slotSelect,
  $startGame,
  $leaveRoom,
  $playBtn,
  $volumeSlider,
  $saveName,
} from "./dom.js";
import { state } from "./state.js";
import { initAudioUI, stopAudioPlayback } from "./audio.js";
import { sendMsg } from "./ws.js";
import { showToast, wire } from "./utils.js";

export function wireUi() {
  initAudioUI();

  // --- Name autosave helpers
  let nameDebounce;
  const SAVE_DEBOUNCE_MS = 800;
  // Button was removed; no state management needed.

  function saveNameIfChanged(raw) {
    const name = (raw || "").trim();
    if (!name) return;
    try {
      const prev = localStorage.getItem("playerName") || "";
      if (prev === name) return; // no-op
      localStorage.setItem("playerName", name);
      if ($nameDisplay) $nameDisplay.textContent = name;
      sendMsg({ type: "set_name", name });
      showToast("Name gespeichert!");
    } catch {
      // best-effort
    }
  }

  // Manual save button
  if ($saveName) {
    wire($saveName, "click", () => {
      if (nameDebounce) {
        clearTimeout(nameDebounce);
        nameDebounce = null;
      }
      const val = ($nameLobby?.value || "").trim();
      if (!val) {
        showToast("⚠️ Bitte gib einen Namen ein!");
        return;
      }
      const prev = localStorage.getItem("playerName") || "";
      if (prev === val) {
        showToast("✓ Name bereits gespeichert!");
        return;
      }
      saveNameIfChanged(val);
    });
  }

  // Autosave on input with debounce
  if ($nameLobby) {
    wire($nameLobby, "input", () => {
      if (nameDebounce) clearTimeout(nameDebounce);
      const val = ($nameLobby.value || "").trim();
      if (!val) return;
      nameDebounce = setTimeout(() => {
        saveNameIfChanged($nameLobby.value);
        nameDebounce = null;
      }, SAVE_DEBOUNCE_MS);
    });
    // Save immediately on blur
    wire($nameLobby, "blur", () => {
      if (nameDebounce) {
        clearTimeout(nameDebounce);
        nameDebounce = null;
      }
      const val = ($nameLobby.value || "").trim();
      if (val) saveNameIfChanged(val);
    });
    // Save on Enter
    wire($nameLobby, "keydown", (e) => {
      if (e.key === "Enter") {
        e.preventDefault();
        if (nameDebounce) {
          clearTimeout(nameDebounce);
          nameDebounce = null;
        }
        const val = ($nameLobby.value || "").trim();
        if (val) saveNameIfChanged(val);
      }
    });
  }

  // Auto-uppercase room code input for better UX
  if ($roomCode) {
    wire($roomCode, "input", () => {
      const pos = $roomCode.selectionStart;
      $roomCode.value = $roomCode.value.toUpperCase();
      $roomCode.setSelectionRange(pos, pos);
    });
  }

  wire($createRoom, "click", () => sendMsg({ type: "create_room" }));

  wire($joinRoom, "click", () => {
    const code = $roomCode.value.trim().toUpperCase();
    if (code) sendMsg({ type: "join_room", roomId: code });
  });

  wire($leaveRoom, "click", () => {
    sendMsg({ type: "leave_room" });
    try {
      localStorage.removeItem("playerId");
      localStorage.removeItem("sessionId");
      localStorage.removeItem("dashboardHintSeen");
      localStorage.removeItem("lastRoomId");
    } catch { }
    stopAudioPlayback();
    state.room = null;
    if ($nameLobby) {
      try {
        const storedName = localStorage.getItem("playerName") || "";
        $nameLobby.value = storedName;
      } catch {
        $nameLobby.value = "";
      }
    }
    if ($nameDisplay) $nameDisplay.textContent = "";
    if ($readyChk) {
      try {
        $readyChk.checked = false;
      } catch { }
    }
    $lobby.classList.remove("hidden");
    $room.classList.add("hidden");
  });

  wire($startGame, "click", () => {
    // Validate playlist selection before starting
    if (!state.room?.state?.playlist) {
      showToast("⚠️ Bitte wähle zuerst eine Playlist aus!");
      return;
    }
    sendMsg({ type: "start_game" });
  });

  wire($readyChk, "change", (e) => {
    const val = !!e.target.checked;
    state.pendingReady = val;
    sendMsg({ type: "ready", ready: val });
  });

  // Playlist selection
  const $playlistSelect = document.getElementById("playlistSelect");
  if ($playlistSelect) {
    wire($playlistSelect, "change", (e) => {
      const playlistId = e.target.value;
      sendMsg({ type: "select_playlist", playlist: playlistId });
    });
  }

  // Goal/score selection
  const $goalSelect = document.getElementById("goalSelect");
  if ($goalSelect) {
    wire($goalSelect, "change", (e) => {
      const goal = parseInt(e.target.value, 10);
      sendMsg({ type: "set_goal", goal });
    });
  }


  wire($placeBtn, "click", () => {
    const slot = parseInt($slotSelect.value, 10);
    sendMsg({ type: "place_guess", slot });
  });

  wire($playBtn, "click", () => sendMsg({ type: "resume_play" }));
  wire($pauseBtn, "click", () => sendMsg({ type: "pause" }));
  wire($nextBtn, "click", () => sendMsg({ type: "skip_track" }));

  // Volume slider is now handled in audio.js initAudioUI()

  if ($copyRoomCode) {
    $copyRoomCode.style.display = "inline-block";
    wire($copyRoomCode, "click", () => {
      if (state.room?.id) {
        navigator.clipboard.writeText(state.room.id).then(() => {
          $copyRoomCode.textContent = "✔️";
          showToast("Code kopiert!");
          setTimeout(() => {
            $copyRoomCode.textContent = "📋";
          }, 1200);
        });
      }
    });
  }

  if ($roomId) {
    wire($roomId, "click", () => {
      if (state.room?.id) {
        navigator.clipboard.writeText(state.room.id).then(() => {
          $roomId.title = "Kopiert!";
          showToast("Code kopiert!");
          setTimeout(() => {
            $roomId.title = "Klicken zum Kopieren";
          }, 1200);
        });
      }
    });
    $roomId.style.cursor = "pointer";
  }

  const form = document.getElementById("answerForm");
  if (form) {
    form.addEventListener("submit", (e) => {
      e.preventDefault();
      const title = ($guessTitle?.value || "").trim();
      const artist = ($guessArtist?.value || "").trim();
      if (!title || !artist) {
        if ($answerResult) {
          $answerResult.textContent = "Bitte Titel und Künstler eingeben";
          $answerResult.className = "mt-1 text-sm text-amber-600";
        }
        return;
      }
      sendMsg({ type: "submit_answer", guess: { title, artist } });
    });
  }

  // Dashboard one-time hint
  const dashboard = document.getElementById("dashboard");
  const dashboardHint = document.getElementById("dashboardHint");
  if (dashboard && dashboardHint) {
    try {
      const seen = localStorage.getItem("dashboardHintSeen");
      if (!seen) {
        dashboardHint.classList.remove("hidden");
        const hide = () => {
          dashboardHint.classList.add("hidden");
          try {
            localStorage.setItem("dashboardHintSeen", "1");
          } catch { }
          dashboard.removeEventListener("toggle", hide);
          dashboard.removeEventListener("click", hide);
        };
        dashboard.addEventListener("toggle", hide);
        dashboard.addEventListener("click", hide, { once: true });
        setTimeout(() => {
          if (!localStorage.getItem("dashboardHintSeen")) hide();
        }, 6000);
      }
    } catch { }
  }
}