import { useRefs } from '/@/cool';

/**
 * 设置聚焦，prop为空则默认第一个选项
 * @param prop 字段标识
 * @returns
 */
export function setFocus(prop?: string): ClForm.Plugin {
	const { refs, setRefs } = useRefs();

	return ({ exposed, onOpen }) => {
		if (prop === '') {
			return;
		}

		const name = prop || exposed.config?.items?.[0]?.prop;
		let _ref: any;

		if (name) {
			function deep(arr: ClForm.Item[]) {
				arr.forEach(e => {
					if (e.prop == name && name) {
						if (e.component) {
							if (e.component.ref) {
								_ref = e.component.ref();
							} else {
								e.component.ref = setRefs(name);
							}
						}
					} else {
						deep(e.children || []);
					}
				});
			}

			deep(exposed.config?.items || []);

			onOpen(() => {
				if (_ref) {
					refs[name] = _ref();
				}

				refs[name]?.focus?.();
			});
		}
	};
}