import { isVNode, render, createVNode } from 'vue';
import { isClient } from '@vueuse/core';
import '../../../utils/index.mjs';
import '../../../hooks/index.mjs';
import { messageConfig } from '../../config-provider/src/config-provider.mjs';
import MessageConstructor from './message2.mjs';
import { messageDefaults, messageTypes } from './message.mjs';
import { instances } from './instance.mjs';
import { isString, isFunction } from '@vue/shared';
import { isElement, isNumber } from '../../../utils/types.mjs';
import { debugWarn } from '../../../utils/error.mjs';
import { useZIndex } from '../../../hooks/use-z-index/index.mjs';

let seed = 1;
const normalizeOptions = (params) => {
  const options = !params || isString(params) || isVNode(params) || isFunction(params) ? { message: params } : params;
  const normalized = {
    ...messageDefaults,
    ...options
  };
  if (!normalized.appendTo) {
    normalized.appendTo = document.body;
  } else if (isString(normalized.appendTo)) {
    let appendTo = document.querySelector(normalized.appendTo);
    if (!isElement(appendTo)) {
      debugWarn("ElMessage", "the appendTo option is not an HTMLElement. Falling back to document.body.");
      appendTo = document.body;
    }
    normalized.appendTo = appendTo;
  }
  return normalized;
};
const closeMessage = (instance) => {
  const idx = instances.indexOf(instance);
  if (idx === -1)
    return;
  instances.splice(idx, 1);
  const { handler } = instance;
  handler.close();
};
const createMessage = ({ appendTo, ...options }, context) => {
  const { nextZIndex } = useZIndex();
  const id = `message_${seed++}`;
  const userOnClose = options.onClose;
  const container = document.createElement("div");
  const props = {
    ...options,
    zIndex: nextZIndex() + options.zIndex,
    id,
    onClose: () => {
      userOnClose == null ? void 0 : userOnClose();
      closeMessage(instance);
    },
    onDestroy: () => {
      render(null, container);
    }
  };
  const vnode = createVNode(MessageConstructor, props, isFunction(props.message) || isVNode(props.message) ? {
    default: isFunction(props.message) ? props.message : () => props.message
  } : null);
  vnode.appContext = context || message._context;
  render(vnode, container);
  appendTo.appendChild(container.firstElementChild);
  const vm = vnode.component;
  const handler = {
    close: () => {
      vm.exposed.visible.value = false;
    }
  };
  const instance = {
    id,
    vnode,
    vm,
    handler,
    props: vnode.component.props
  };
  return instance;
};
const message = (options = {}, context) => {
  if (!isClient)
    return { close: () => void 0 };
  if (isNumber(messageConfig.max) && instances.length >= messageConfig.max) {
    return { close: () => void 0 };
  }
  const normalized = normalizeOptions(options);
  if (normalized.grouping && instances.length) {
    const instance2 = instances.find(({ vnode: vm }) => {
      var _a;
      return ((_a = vm.props) == null ? void 0 : _a.message) === normalized.message;
    });
    if (instance2) {
      instance2.props.repeatNum += 1;
      instance2.props.type = normalized.type;
      return instance2.handler;
    }
  }
  const instance = createMessage(normalized, context);
  instances.push(instance);
  return instance.handler;
};
messageTypes.forEach((type) => {
  message[type] = (options = {}, appContext) => {
    const normalized = normalizeOptions(options);
    return message({ ...normalized, type }, appContext);
  };
});
function closeAll(type) {
  for (const instance of instances) {
    if (!type || type === instance.props.type) {
      instance.handler.close();
    }
  }
}
message.closeAll = closeAll;
message._context = null;

export { closeAll, message as default };
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