import { useEffect, useRef } from "react";
import type { CharacterProfile } from "../app/types";
import { controlledArenaActor } from "./arenaPlayer";
import { useArenaStore } from "./arenaStore";
import { createArenaCharacterKit } from "./arenaCharacter";
import { actionBindingId, type ActionBindingLayer } from "./actionBindings";
import { activeUiLayout, currentUiDevice } from "./uiLayoutStore";
import { actionKeyForEvent, desktopSlotForKey } from "./uiLayout";
import { endMouseLookDrag, installInput, isDesktopCameraLookPointer } from "./inputManager";
import { useGameStore } from "./store";

export function useArenaInput(options: {
  character: CharacterProfile | null;
  blocked: boolean;
  cast: (id: string) => void;
  togglePause: () => void;
  setLayer: (layer: ActionBindingLayer) => void;
  setInputMode: (mode: "keyboard" | "gamepad") => void;
  groundTargetActive: () => boolean;
  confirmGroundTarget: () => void;
  cancelGroundTarget: () => void;
}) {
  const current = useRef(options);
  current.current = options;
  useEffect(() => {
    const cycle = (direction: 1 | -1, friendly: boolean) => {
      const state = useArenaStore.getState();
      const actor = controlledArenaActor(state.snapshot, current.current.character);
      if (!actor) return;
      const targets = state.snapshot!.actors.filter((candidate) => candidate.alive && (friendly ? candidate.team === actor.team : candidate.team !== actor.team));
      const index = targets.findIndex((candidate) => candidate.id === actor.targetActorId);
      const selected = targets[(index + direction + targets.length) % targets.length];
      if (selected) state.intent({ type: "target", targetActorId: selected.id });
    };
    const noop = () => {};
    const uninstall = installInput({
      desktopActionBarsActive: () => currentUiDevice() === "pc" && activeUiLayout().wowBars,
      castDesktopSlot: (bar, slot) => {
        const id = activeUiLayout().bars[bar]?.slots[slot]?.abilityId;
        if (id) current.current.cast(id);
      },
      handleCustomKey: (event) => {
        if (current.current.blocked || currentUiDevice() !== "pc") return false;
        const slot = desktopSlotForKey(activeUiLayout(), actionKeyForEvent(event));
        if (!slot) return false;
        if (!event.repeat && slot.abilityId) current.current.cast(slot.abilityId);
        current.current.setInputMode("keyboard");
        return true;
      },
      togglePause: () => current.current.togglePause(),
      toggleMap: () => useGameStore.getState().toggleOverlay("map"),
      toggleInventory: () => useGameStore.getState().toggleOverlay("inventory"),
      toggleSpellbook: () => useGameStore.getState().toggleOverlay("spellbook"),
      toggleTalents: () => useGameStore.getState().toggleOverlay("talents"),
      togglePanel: (panel) => useGameStore.getState().toggleOverlay(panel),
      lootActiveBoss: () => false,
      castActionBinding: (layer, control) => {
        const character = current.current.character;
        if (!character) return;
        const actor = controlledArenaActor(useArenaStore.getState().snapshot, character);
        const bindings = actor?.actionBindings ?? createArenaCharacterKit(character).actionBindings;
        const id = bindings[actionBindingId(layer, control)];
        if (id) current.current.cast(id);
      },
      cycleTarget: (direction) => cycle(direction, false),
      cyclePartyTarget: (direction) => cycle(direction, true),
      setPartyCommand: (command) => useArenaStore.getState().intent({ type: "command", command }),
      recallParty: () => useArenaStore.getState().intent({ type: "command", command: "recall" }),
      clearTarget: () => useArenaStore.getState().intent({ type: "target", targetActorId: "" }),
      groundTargetActive: () => current.current.groundTargetActive(),
      confirmGroundTarget: () => current.current.confirmGroundTarget(),
      cancelGroundTarget: () => current.current.cancelGroundTarget(),
      gameplayActionsBlocked: () => current.current.blocked,
      setCameraLookActive: noop,
      setInputMode: (mode) => current.current.setInputMode(mode),
      setActionLayer: (layer) => current.current.setLayer(layer),
    });
    const stopMovement = () => {
      endMouseLookDrag();
      useArenaStore.getState().intent({ type: "movement", movement: { x: 0, z: 0 } });
    };
    const mouseUp = (event: MouseEvent) => { if (isDesktopCameraLookPointer("mouse", event.button)) endMouseLookDrag(); };
    window.addEventListener("mouseup", mouseUp, true);
    window.addEventListener("blur", stopMovement);
    return () => {
      window.removeEventListener("mouseup", mouseUp, true);
      window.removeEventListener("blur", stopMovement);
      stopMovement();
      uninstall();
    };
  }, []);
  useEffect(() => {
    if (options.blocked) {
      endMouseLookDrag();
      useArenaStore.getState().intent({ type: "movement", movement: { x: 0, z: 0 } });
    }
  }, [options.blocked]);
}