import {
  FILENAME,
  active_effect,
  active_reaction,
  define_property,
  hydrating,
  queue_micro_task,
  set_active_effect,
  set_active_reaction,
  teardown,
  without_reactive_context
} from "./chunk-IFIY7NGJ.js";
import {
  event_handler_invalid
} from "./chunk-QDDRZFWN.js";

// node_modules/svelte/src/internal/client/dom/elements/events.js
var event_symbol = Symbol("events");
var all_registered_events = /* @__PURE__ */ new Set();
var root_event_handles = /* @__PURE__ */ new Set();
function replay_events(dom) {
  if (!hydrating) return;
  dom.removeAttribute("onload");
  dom.removeAttribute("onerror");
  const event2 = dom.__e;
  if (event2 !== void 0) {
    dom.__e = void 0;
    queueMicrotask(() => {
      if (dom.isConnected) {
        dom.dispatchEvent(event2);
      }
    });
  }
}
function create_event(event_name, dom, handler, options = {}) {
  function target_handler(event2) {
    if (!options.capture) {
      handle_event_propagation.call(dom, event2);
    }
    if (!event2.cancelBubble) {
      return without_reactive_context(() => {
        return handler == null ? void 0 : handler.call(this, event2);
      });
    }
  }
  if (event_name.startsWith("pointer") || event_name.startsWith("touch") || event_name === "wheel") {
    queue_micro_task(() => {
      dom.addEventListener(event_name, target_handler, options);
    });
  } else {
    dom.addEventListener(event_name, target_handler, options);
  }
  return target_handler;
}
function on(element, type, handler, options = {}) {
  var target_handler = create_event(type, element, handler, options);
  return () => {
    element.removeEventListener(type, target_handler, options);
  };
}
function event(event_name, dom, handler, capture, passive) {
  var options = { capture, passive };
  var target_handler = create_event(event_name, dom, handler, options);
  if (dom === document.body || // @ts-ignore
  dom === window || // @ts-ignore
  dom === document || // Firefox has quirky behavior, it can happen that we still get "canplay" events when the element is already removed
  dom instanceof HTMLMediaElement) {
    teardown(() => {
      dom.removeEventListener(event_name, target_handler, options);
    });
  }
}
function delegated(event_name, element, handler) {
  (element[event_symbol] ?? (element[event_symbol] = {}))[event_name] = handler;
}
function delegate(events) {
  for (var i = 0; i < events.length; i++) {
    all_registered_events.add(events[i]);
  }
  for (var fn of root_event_handles) {
    fn(events);
  }
}
var last_propagated_event = null;
function handle_event_propagation(event2) {
  var _a, _b;
  var handler_element = this;
  var owner_document = (
    /** @type {Node} */
    handler_element.ownerDocument
  );
  var event_name = event2.type;
  var path = ((_a = event2.composedPath) == null ? void 0 : _a.call(event2)) || [];
  var current_target = (
    /** @type {null | Element} */
    path[0] || event2.target
  );
  last_propagated_event = event2;
  var path_idx = 0;
  var handled_at = last_propagated_event === event2 && event2[event_symbol];
  if (handled_at) {
    var at_idx = path.indexOf(handled_at);
    if (at_idx !== -1 && (handler_element === document || handler_element === /** @type {any} */
    window)) {
      event2[event_symbol] = handler_element;
      return;
    }
    var handler_idx = path.indexOf(handler_element);
    if (handler_idx === -1) {
      return;
    }
    if (at_idx <= handler_idx) {
      path_idx = at_idx;
    }
  }
  current_target = /** @type {Element} */
  path[path_idx] || event2.target;
  if (current_target === handler_element) return;
  define_property(event2, "currentTarget", {
    configurable: true,
    get() {
      return current_target || owner_document;
    }
  });
  var previous_reaction = active_reaction;
  var previous_effect = active_effect;
  set_active_reaction(null);
  set_active_effect(null);
  try {
    var throw_error;
    var other_errors = [];
    while (current_target !== null) {
      if (current_target === handler_element) break;
      try {
        var delegated2 = (_b = current_target[event_symbol]) == null ? void 0 : _b[event_name];
        if (delegated2 != null && (!/** @type {any} */
        current_target.disabled || // DOM could've been updated already by the time this is reached, so we check this as well
        // -> the target could not have been disabled because it emits the event in the first place
        event2.target === current_target)) {
          delegated2.call(current_target, event2);
        }
      } catch (error) {
        if (throw_error) {
          other_errors.push(error);
        } else {
          throw_error = error;
        }
      }
      if (event2.cancelBubble) break;
      path_idx++;
      current_target = path_idx < path.length ? (
        /** @type {Element} */
        path[path_idx]
      ) : null;
    }
    if (throw_error) {
      for (let error of other_errors) {
        queueMicrotask(() => {
          throw error;
        });
      }
      throw throw_error;
    }
  } finally {
    event2[event_symbol] = handler_element;
    delete event2.currentTarget;
    set_active_reaction(previous_reaction);
    set_active_effect(previous_effect);
  }
}
function apply(thunk, element, args, component, loc, has_side_effects = false, remove_parens = false) {
  var _a, _b;
  let handler;
  let error;
  try {
    handler = thunk();
  } catch (e) {
    error = e;
  }
  if (typeof handler !== "function" && (has_side_effects || handler != null || error)) {
    const filename = component == null ? void 0 : component[FILENAME];
    const location = loc ? ` at ${filename}:${loc[0]}:${loc[1]}` : ` in ${filename}`;
    const phase = ((_a = args[0]) == null ? void 0 : _a.eventPhase) < Event.BUBBLING_PHASE ? "capture" : "";
    const event_name = ((_b = args[0]) == null ? void 0 : _b.type) + phase;
    const description = `\`${event_name}\` handler${location}`;
    const suggestion = remove_parens ? "remove the trailing `()`" : "add a leading `() =>`";
    event_handler_invalid(description, suggestion);
    if (error) {
      throw error;
    }
  }
  handler == null ? void 0 : handler.apply(element, args);
}

export {
  all_registered_events,
  root_event_handles,
  replay_events,
  create_event,
  on,
  event,
  delegated,
  delegate,
  handle_event_propagation,
  apply
};
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