import { Redo2, StepBack, StepForward, Trash2, Undo2 } from "lucide-react";
import { useEncounterContext } from "../contexts/encounter-context.js";
import { useDifficulty } from "../hooks/use-difficulty.js";
import { DifficultyIndicator } from "./difficulty-indicator.js";
import { Button } from "./ui/button.js";
import { ConfirmButton } from "./ui/confirm-button.js";

export function TurnNavigation() {
	const {
		encounter,
		advanceTurn,
		retreatTurn,
		clearEncounter,
		undo,
		redo,
		canUndo,
		canRedo,
	} = useEncounterContext();

	const difficulty = useDifficulty();
	const hasCombatants = encounter.combatants.length > 0;
	const isAtStart = encounter.roundNumber === 1 && encounter.activeIndex === 0;
	const activeCombatant = encounter.combatants[encounter.activeIndex];

	return (
		<div className="card-glow flex items-center gap-3 border-border border-b bg-card px-4 py-3 sm:rounded-lg sm:border">
			<Button
				variant="ghost"
				size="icon"
				onClick={retreatTurn}
				disabled={!hasCombatants || isAtStart}
				title="Previous turn"
				aria-label="Previous turn"
			>
				<StepBack className="h-5 w-5" />
			</Button>

			<div className="flex items-center gap-1">
				<Button
					variant="ghost"
					size="icon"
					onClick={undo}
					disabled={!canUndo}
					title="Undo"
					aria-label="Undo"
				>
					<Undo2 className="h-4 w-4" />
				</Button>
				<Button
					variant="ghost"
					size="icon"
					onClick={redo}
					disabled={!canRedo}
					title="Redo"
					aria-label="Redo"
				>
					<Redo2 className="h-4 w-4" />
				</Button>
			</div>

			<div className="flex min-w-0 flex-1 items-center justify-center gap-2 text-sm">
				<span className="shrink-0 rounded-md bg-muted px-2 py-0.5 font-semibold text-foreground text-sm">
					<span className="-mt-[3px] inline-block">
						R{encounter.roundNumber}
					</span>
				</span>
				{activeCombatant ? (
					<span className="truncate font-medium">{activeCombatant.name}</span>
				) : (
					<span className="text-muted-foreground">No combatants</span>
				)}
				{difficulty && <DifficultyIndicator result={difficulty} />}
			</div>

			<div className="flex flex-shrink-0 items-center gap-3">
				<ConfirmButton
					icon={<Trash2 className="h-5 w-5" />}
					label="Clear encounter"
					onConfirm={clearEncounter}
					disabled={!hasCombatants}
					className="text-muted-foreground"
				/>
				<Button
					variant="ghost"
					size="icon"
					onClick={advanceTurn}
					disabled={!hasCombatants}
					title="Next turn"
					aria-label="Next turn"
				>
					<StepForward className="h-5 w-5" />
				</Button>
			</div>
		</div>
	);
}