import { Task } from "@/model/task";
import { filterTasks, type TaskFilter } from "./filterTasks";
import { GroupBy } from "./groupBy";
import { groupTasks, type TaskGroup } from "./groupTasks";

export type DashboardViewOptions = {
	filter?: TaskFilter;
	groupBy?: GroupBy;
	selectedId?: string;
};

export type DashboardView = {
	visibleTasks: Task[];
	groups: TaskGroup[];
	selected: Task | undefined;
};

export function buildDashboardView(
	tasks: Task[],
	options: DashboardViewOptions = {},
): DashboardView {
	const filter = options.filter ?? {};
	const groupBy = options.groupBy ?? GroupBy.NONE;

	const visibleTasks = filterTasks(tasks, filter);
	const groups = groupTasks(visibleTasks, groupBy);
	const selected = options.selectedId
		? tasks.find((t) => t.id === options.selectedId)
		: undefined;

	return { visibleTasks, groups, selected };
}