import React, { Fragment, useEffect, useRef, useState } from "react";
import { observer } from "mobx-react-lite";
import { useRouter } from "next/router";
import { usePopper } from "react-popper";
import { Combobox } from "@headlessui/react";
// hooks
import { Check, Component, Plus, Search, Tag } from "lucide-react";
import { IssueLabelsList } from "components/ui";
import { useLabel } from "hooks/store";
import { useDropdownKeyDown } from "hooks/use-dropdown-key-down";
import useOutsideClickDetector from "hooks/use-outside-click-detector";
// ui
// icons
type Props = {
setIsOpen: React.Dispatch<React.SetStateAction<boolean>>;
value: string[];
onChange: (value: string[]) => void;
projectId: string;
label?: JSX.Element;
disabled?: boolean;
tabIndex?: number;
};
export const IssueLabelSelect: React.FC<Props> = observer((props) => {
const { setIsOpen, value, onChange, projectId, label, disabled = false, tabIndex } = props;
// router
const router = useRouter();
const { workspaceSlug } = router.query;
// store hooks
const { getProjectLabels, fetchProjectLabels } = useLabel();
// states
const [query, setQuery] = useState("");
const [referenceElement, setReferenceElement] = useState<HTMLButtonElement | null>(null);
const [popperElement, setPopperElement] = useState<HTMLDivElement | null>(null);
const [isDropdownOpen, setIsDropdownOpen] = useState(false);
// refs
const dropdownRef = useRef<HTMLDivElement | null>(null);
const inputRef = useRef<HTMLInputElement | null>(null);
// popper
const { styles, attributes } = usePopper(referenceElement, popperElement, {
placement: "bottom-start",
});
const projectLabels = getProjectLabels(projectId);
// derived values
const filteredOptions =
query === "" ? projectLabels : projectLabels?.filter((l) => l.name.toLowerCase().includes(query.toLowerCase()));
const onOpen = () => {
if (!projectLabels && workspaceSlug && projectId) fetchProjectLabels(workspaceSlug.toString(), projectId);
if (referenceElement) referenceElement.focus();
};
const handleClose = () => {
if (isDropdownOpen) setIsDropdownOpen(false);
if (referenceElement) referenceElement.blur();
};
const toggleDropdown = () => {
if (!isDropdownOpen) onOpen();
setIsDropdownOpen((prevIsOpen) => !prevIsOpen);
};
const dropdownOnChange = (val: string[]) => {
onChange(val);
};
const handleKeyDown = useDropdownKeyDown(toggleDropdown, handleClose);
const handleOnClick = (e: React.MouseEvent<HTMLButtonElement, MouseEvent>) => {
e.stopPropagation();
e.preventDefault();
toggleDropdown();
};
useOutsideClickDetector(dropdownRef, handleClose);
useEffect(() => {
if (isDropdownOpen && inputRef.current) {
inputRef.current.focus();
}
}, [isDropdownOpen]);
return (
<Combobox
as="div"
ref={dropdownRef}
tabIndex={tabIndex}
value={value}
onChange={dropdownOnChange}
className="relative flex-shrink-0 h-full"
multiple
disabled={disabled}
onKeyDown={handleKeyDown}
>
<Combobox.Button as={Fragment}>
<button
type="button"
ref={setReferenceElement}
className="h-full flex cursor-pointer items-center gap-2 text-xs text-custom-text-200"
onClick={handleOnClick}
>
{label ? (
label
) : value && value.length > 0 ? (
<span className="flex items-center justify-center gap-2 text-xs">
<IssueLabelsList
labels={value.map((v) => projectLabels?.find((l) => l.id === v)) ?? []}
length={3}
showLength
/>
</span>
) : (
<div className="h-full flex items-center justify-center gap-1 rounded border-[0.5px] border-custom-border-300 px-2 py-1 text-xs hover:bg-custom-background-80">
<Tag className="h-3 w-3 flex-shrink-0" />
<span>Labels</span>
</div>
)}
</button>
</Combobox.Button>
{isDropdownOpen && (
<Combobox.Options className="fixed z-10" static>
<div
className="my-1 w-48 rounded border-[0.5px] border-custom-border-300 bg-custom-background-100 px-2 py-2.5 text-xs shadow-custom-shadow-rg focus:outline-none"
ref={setPopperElement}
style={styles.popper}
{...attributes.popper}
>
<div className="flex items-center gap-1.5 rounded border border-custom-border-100 bg-custom-background-90 px-2">
<Search className="h-3.5 w-3.5 text-custom-text-400" strokeWidth={1.5} />
<Combobox.Input
as="input"
ref={inputRef}
className="w-full bg-transparent py-1 text-xs text-custom-text-200 placeholder:text-custom-text-400 focus:outline-none"
onChange={(event) => setQuery(event.target.value)}
placeholder="Search"
displayValue={(assigned: any) => assigned?.name}
/>
</div>
<div className="mt-2 max-h-48 space-y-1 overflow-y-scroll">
{projectLabels && filteredOptions ? (
filteredOptions.length > 0 ? (
filteredOptions.map((label) => {
const children = projectLabels?.filter((l) => l.parent === label.id);
if (children.length === 0) {
if (!label.parent)
return (
<Combobox.Option
key={label.id}
className={({ active }) =>
`${
active ? "bg-custom-background-80" : ""
} group flex w-full cursor-pointer select-none items-center gap-2 truncate rounded px-1 py-1.5 text-custom-text-200`
}
value={label.id}
>
{({ selected }) => (
<div className="flex w-full justify-between gap-2 rounded">
<div className="flex items-center justify-start gap-2 truncate">
<span
className="h-2.5 w-2.5 flex-shrink-0 rounded-full"
style={{
backgroundColor: label.color,
}}
/>
<span className="truncate">{label.name}</span>
</div>
<div className="flex shrink-0 items-center justify-center rounded p-1">
<Check className={`h-3 w-3 ${selected ? "opacity-100" : "opacity-0"}`} />
</div>
</div>
)}
</Combobox.Option>
);
} else
return (
<div className="border-y border-custom-border-200">
<div className="flex select-none items-center gap-2 truncate p-2 text-custom-text-100">
<Component className="h-3 w-3" /> {label.name}
</div>
<div>
{children.map((child) => (
<Combobox.Option
key={child.id}
className={({ active }) =>
`${
active ? "bg-custom-background-80" : ""
} group flex min-w-[14rem] cursor-pointer select-none items-center gap-2 truncate rounded px-1 py-1.5 text-custom-text-200`
}
value={child.id}
>
{({ selected }) => (
<div className="flex w-full justify-between gap-2 rounded">
<div className="flex items-center justify-start gap-2">
<span
className="h-2.5 w-2.5 flex-shrink-0 rounded-full"
style={{
backgroundColor: child?.color,
}}
/>
<span>{child.name}</span>
</div>
<div className="flex items-center justify-center rounded p-1">
<Check className={`h-3 w-3 ${selected ? "opacity-100" : "opacity-0"}`} />
</div>
</div>
)}
</Combobox.Option>
))}
</div>
</div>
);
})
) : (
<p className="text-custom-text-400 italic py-1 px-1.5">No matching results</p>
)
) : (
<p className="text-custom-text-400 italic py-1 px-1.5">Loading...</p>
)}
<button
type="button"
className="flex items-center gap-2 w-full select-none rounded px-1 py-2 hover:bg-custom-background-80"
onClick={() => setIsOpen(true)}
>
<Plus className="h-3 w-3" aria-hidden="true" />
<span className="whitespace-nowrap">Create new label</span>
</button>
</div>
</div>
</Combobox.Options>
)}
</Combobox>
);
});