export const TaskStatus = {
	BACKLOG: "backlog",
	OPEN: "open",
	IN_PROGRESS: "in-progress",
	DONE: "done",
	CANCELLED: "cancelled",
	UNKNOWN: "unknown",
} as const;

export type TaskStatus = (typeof TaskStatus)[keyof typeof TaskStatus];

export type TaskStatusMeta = {
	label: string;
	/** Hide column by default in kanban (toggle can show later). */
	defaultHidden: boolean;
	/** Codicon id for tree; adapters wrap in ThemeIcon. */
	icon: string;
	/**
	 * Fallback value assigned when the parsed status is invalid/missing.
	 * Excluded from editing choices; hidden in tree when empty.
	 */
	fallback?: boolean;
};

/** Explicit display / column order (not Object.values). */
export const TASK_STATUS_ORDER: TaskStatus[] = [
	TaskStatus.BACKLOG,
	TaskStatus.OPEN,
	TaskStatus.IN_PROGRESS,
	TaskStatus.DONE,
	TaskStatus.CANCELLED,
	TaskStatus.UNKNOWN,
];

export const TASK_STATUS_META: Record<TaskStatus, TaskStatusMeta> = {
	[TaskStatus.BACKLOG]: {
		label: "Backlog",
		defaultHidden: true,
		icon: "inbox",
	},
	[TaskStatus.OPEN]: {
		label: "Open",
		defaultHidden: false,
		icon: "circle-outline",
	},
	[TaskStatus.IN_PROGRESS]: {
		label: "In Progress",
		defaultHidden: false,
		icon: "sync",
	},
	[TaskStatus.DONE]: {
		label: "Done",
		defaultHidden: false,
		icon: "check",
	},
	[TaskStatus.CANCELLED]: {
		label: "Cancelled",
		defaultHidden: true,
		icon: "close",
	},
	[TaskStatus.UNKNOWN]: {
		label: "Unknown",
		defaultHidden: true,
		icon: "question",
		fallback: true,
	},
};

export function isTaskStatus(value: unknown): value is TaskStatus {
	return (
		typeof value === "string" && (TASK_STATUS_ORDER as string[]).includes(value)
	);
}