import React, { useEffect } from "react";
import useModuleStore, { useThreeDStore } from "../../store/useModuleStore";
import { usePlayerStore, useToggleStore } from "../../store/useUIToggleStore";
import {
  useActiveSubTool,
  useActiveTool,
  useAddAction,
  useDeleteTool,
  useSaveVersion,
  useSelectedWallItem,
  useShortcutStore,
  useToggleView,
  useToolMode,
  useViewSceneStore,
} from "../../store/builder/store";
import useCameraModeStore, {
  usePlayButtonStore,
} from "../../store/usePlayButtonStore";
import { detectModifierKeys } from "./detectModifierKeys";
import { useSelectedZoneStore } from "../../store/visualization/useZoneStore";
import { useLogger } from "../../components/ui/log/LoggerContext";

const KeyPressListener: React.FC = () => {
  const { activeModule, setActiveModule } = useModuleStore();
  const { setActiveSubTool } = useActiveSubTool();
  const { toggleUILeft, toggleUIRight, setToggleUI } = useToggleStore();
  const { setToggleThreeD } = useThreeDStore();
  const { setToolMode } = useToolMode();
  const { isPlaying, setIsPlaying } = usePlayButtonStore();
  const { toggleView, setToggleView } = useToggleView();
  const { setDeleteTool } = useDeleteTool();
  const { setAddAction } = useAddAction();
  const { setSelectedWallItem } = useSelectedWallItem();
  const { setActiveTool } = useActiveTool();
  const { clearSelectedZone } = useSelectedZoneStore();
  const { showShortcuts, setShowShortcuts } = useShortcutStore();
  const { setWalkMode } = useCameraModeStore();
  const { setIsVersionSaved } = useSaveVersion();
  const { isLogListVisible, setIsLogListVisible } = useLogger();
  const { hidePlayer, setHidePlayer } = usePlayerStore();
  const { viewSceneLabels, setViewSceneLabels } = useViewSceneStore();

  const isTextInput = (element: Element | null): boolean =>
    element instanceof HTMLInputElement ||
    element instanceof HTMLTextAreaElement ||
    element?.getAttribute("contenteditable") === "true";

  const handleModuleSwitch = (keyCombination: string) => {
    const modules: Record<string, string> = {
      "1": "builder",
      "2": "simulation",
      "3": "visualization",
      "4": "market",
    };
    const module = modules[keyCombination];
    if (module && !toggleView) {
      console.log("hi");
      setActiveTool("cursor");
      setActiveSubTool("cursor");
      if (module === "market") setToggleUI(false, false);
      setActiveModule(module);
    }
  };

  const handlePrimaryTools = (key: string) => {
    const toolMap: Record<string, string> = {
      V: "cursor",
      X: "delete",
      H: "free-hand",
    };
    const tool = toolMap[key];
    if (tool) {
      setActiveTool(tool);
      setActiveSubTool(tool);
    }
  };

  const handleBuilderShortcuts = (key: string) => {
    if (activeModule !== "builder" || isPlaying) return;

    if (key === "TAB") {
      const toggleTo2D = toggleView;
      setToggleView(!toggleTo2D);
      setToggleThreeD(toggleTo2D);
      setToggleUI(toggleTo2D, toggleTo2D);
      if (toggleTo2D) {
        setSelectedWallItem(null);
        setDeleteTool(false);
        setAddAction(null);
      }
      setActiveTool("cursor");
      setActiveSubTool("cursor");
      return;
    }

    // These should only apply in 2D view
    const twoDToolConfigs: Record<string, { tool: string; mode: string }> = {
      Q: { tool: "draw-wall", mode: "Wall" },
      "6": { tool: "draw-wall", mode: "Wall" },
      R: { tool: "draw-aisle", mode: "Aisle" },
      "7": { tool: "draw-aisle", mode: "Aisle" },
      E: { tool: "draw-zone", mode: "Zone" },
      "8": { tool: "draw-zone", mode: "Zone" },
      T: { tool: "draw-floor", mode: "Floor" },
      "9": { tool: "draw-floor", mode: "Floor" },
    };

    const config = twoDToolConfigs[key];
    if (toggleView && config) {
      setActiveTool(config.tool);
      setToolMode(config.mode);
    }

    // Measurement tool should work in both 2D and 3D
    if (key === "M") {
      setActiveTool("measure");
      setToolMode("MeasurementScale");
    }
  };

  const handleSidebarShortcuts = (key: string) => {
    if (activeModule === "market") return;

    const updateLocalStorage = (left: boolean, right: boolean) => {
      localStorage.setItem("navBarUiLeft", JSON.stringify(left));
      localStorage.setItem("navBarUiRight", JSON.stringify(right));
    };

    switch (key) {
      case "Ctrl+\\":
        if (toggleUILeft === toggleUIRight) {
          const newState = !toggleUILeft;
          setToggleUI(newState, newState);
          updateLocalStorage(newState, newState);
        } else {
          setToggleUI(true, true);
          updateLocalStorage(true, true);
        }
        break;

      case "Ctrl+]":
        setToggleUI(toggleUILeft, !toggleUIRight);
        updateLocalStorage(toggleUILeft, !toggleUIRight);
        break;

      case "Ctrl+[":
        setToggleUI(!toggleUILeft, toggleUIRight);
        updateLocalStorage(!toggleUILeft, toggleUIRight);
        break;

      default:
        break;
    }
  };

  const handleKeyPress = (event: KeyboardEvent) => {
    console.log(
      "isTextInput(document.activeElement): ",
      isTextInput(document.activeElement)
    );
    if (isTextInput(document.activeElement)) return;

    const keyCombination = detectModifierKeys(event);
    if (
      !keyCombination ||
      ["F5", "F11", "F12"].includes(event.key) ||
      keyCombination === "Ctrl+R"
    )
      return;
    console.log("keyCombination: ", keyCombination);

    event.preventDefault();

    // Shortcuts specific for sidebar visibility toggle and others specific to sidebar if added
    handleSidebarShortcuts(keyCombination);
    // Active module selection (builder, simulation, etc.)
    handleModuleSwitch(keyCombination);
    // Common editing tools: cursor | delete | free-hand
    handlePrimaryTools(keyCombination);
    // Shortcuts specific to the builder module (e.g., drawing and measurement tools)
    handleBuilderShortcuts(keyCombination);

    // Shortcut to enter play mode
    if (keyCombination === "Ctrl+P" && !toggleView) {
      setIsPlaying(true);
    }

    if (keyCombination === "L") {
      setIsLogListVisible(!isLogListVisible);
    }

    if (keyCombination === "H") {
      setHidePlayer(!hidePlayer);
    }

    if (keyCombination === "ESCAPE") {
      setWalkMode(false);
      setActiveTool("cursor");
      setActiveSubTool("cursor");
      setIsPlaying(false);
      clearSelectedZone();
      setShowShortcuts(false);
      setIsVersionSaved(false);
      setIsLogListVisible(false);
    }

    if (keyCombination === "Ctrl+Shift+?") {
      setShowShortcuts(!showShortcuts);
    }
    if (keyCombination === "U") {
      console.log("viewSceneLabels: ", viewSceneLabels);
      setViewSceneLabels((prev) => !prev);
    }
    // Placeholder for future implementation
    if (
      ["Ctrl+Z", "Ctrl+Y", "Ctrl+Shift+Z", "Ctrl+F"].includes(keyCombination)
    ) {
      // Implement undo/redo/help/find/shortcuts
    }
  };

  useEffect(() => {
    window.addEventListener("keydown", handleKeyPress);
    return () => window.removeEventListener("keydown", handleKeyPress);
    // eslint-disable-next-line react-hooks/exhaustive-deps
  }, [
    activeModule,
    toggleUIRight,
    toggleUILeft,
    toggleView,
    showShortcuts,
    isPlaying,
    isLogListVisible,
    hidePlayer,
  ]);

  return null;
};

export default KeyPressListener;