import { Box, Text } from "ink"; import React, { useState, useMemo } from "react"; import { useInteraction } from "@/hooks/use-interaction"; import type { InteractionProps } from "@/hooks/use-interaction"; import { useTheme } from "@/hooks/use-theme"; import { useUnicode } from "@/hooks/use-unicode"; import { resolveBorderStyle } from "@/lib/terminal-style"; import { resolveTerminalSymbol } from "@/lib/terminal-symbols"; import { removeGraphemeBefore } from "@/lib/terminal-text"; export interface ListItem { key: string; label: string; description?: string; color?: string; disabled?: boolean; } export interface ListProps extends InteractionProps { items: ListItem[]; onSelect?: (item: ListItem) => void; filterable?: boolean; height?: number; cursor?: string; "aria-label"?: string; } export const List = ({ items, onSelect, filterable = false, height = 10, cursor, id, autoFocus, isActive, disabled, "aria-label": ariaLabel = "List", }: ListProps) => { const unicode = useUnicode(); const theme = useTheme(); const resolvedCursor = cursor ?? resolveTerminalSymbol(unicode, "›", ">"); const [activeIndex, setActiveIndex] = useState(0); const [filter, setFilter] = useState(""); const filtered = useMemo(() => { if (!filter) { return items; } const q = filter.toLowerCase(); return items.filter((item) => item.label.toLowerCase().includes(q)); }, [items, filter]); const { isFocused } = useInteraction( (input, key) => { const enabled = filtered .map((item, index) => ({ index, item })) .filter(({ item }) => !item.disabled); const currentEnabledIndex = enabled.findIndex( ({ index }) => index === activeIndex ); if (key.upArrow) { setActiveIndex( enabled[Math.max(0, currentEnabledIndex - 1)]?.index ?? 0 ); } else if (key.downArrow) { setActiveIndex( enabled[Math.min(enabled.length - 1, currentEnabledIndex + 1)] ?.index ?? 0 ); } else if (key.home) { setActiveIndex(enabled[0]?.index ?? 0); } else if (key.end) { setActiveIndex(enabled.at(-1)?.index ?? 0); } else if (key.return) { const item = filtered[activeIndex]; if (item && !item.disabled) { onSelect?.(item); } } else if (filterable && key.backspace) { setFilter( (f) => removeGraphemeBefore(f, Number.POSITIVE_INFINITY).value ); } else if ( filterable && !key.escape && !key.return && !key.upArrow && !key.downArrow ) { setFilter((f) => f + input); } }, { autoFocus, disabled, id, isActive } ); const visible = filtered.slice(0, height); return ( {""} {filterable && ( {filter || resolveTerminalSymbol( unicode, "Type to filter…", "Type to filter..." )} )} {visible.map((item, idx) => { const isActive = idx === activeIndex; return ( {isActive ? `[${resolvedCursor}]` : " "} {item.label} {item.description && ( {item.description} )} ); })} {filtered.length > height && ( {filtered.length - height}{" "} {resolveTerminalSymbol(unicode, "more…", "more...")} )} ); };