interface CoverageReport {
	currentPercent: number;
	thresholdPercent: number;
	baselinePercent: number | null;
}

interface GateState {
	canAccept: boolean;
	reasons: string[];
	warning: string | null;
	summary: {
		total: number;
		passed: number;
		failed: number;
	};
	missingCategories: string[];
	coverageReport: CoverageReport | null;
}

interface GatePanelProps {
	gateState: GateState | null;
	gateStatusLabel: string;
	gateStatusColor: string;
	isGateLoading: boolean;
	gateError: string | null;
	coverageError: string | null;
	lastGateRefresh: Date | null;
	onRefresh: () => void;
	onCollectCoverage: () => void;
	isCollectingCoverage: boolean;
}

const formatTimestamp = (value: Date | null): string => {
	if (!value) return "—";
	return value.toLocaleTimeString([], {
		hour: "2-digit",
		minute: "2-digit",
		second: "2-digit",
	});
};

export function GatePanel({
	gateState,
	gateStatusLabel,
	gateStatusColor,
	isGateLoading,
	gateError,
	coverageError,
	lastGateRefresh,
	onRefresh,
	onCollectCoverage,
	isCollectingCoverage,
}: GatePanelProps) {
	return (
		<div
			style={{
				border: "1px solid #333",
				borderRadius: "10px",
				padding: "12px 16px",
				background: "#1f1f1f",
				display: "flex",
				flexDirection: "column",
				gap: "8px",
			}}
		>
			<div
				style={{
					display: "flex",
					alignItems: "center",
					justifyContent: "space-between",
					gap: "12px",
				}}
			>
				<div
					style={{
						display: "flex",
						alignItems: "center",
						gap: "8px",
					}}
				>
					<div style={{ fontWeight: 600 }}>Workflow Gates</div>
					<button
						type="button"
						onClick={onRefresh}
						disabled={isGateLoading}
						style={{
							padding: "4px 10px",
							borderRadius: "999px",
							border: "1px solid #333",
							background: isGateLoading ? "#2a2a2a" : "#2f2f2f",
							color: isGateLoading ? "#777" : "#aaa",
							cursor: isGateLoading ? "not-allowed" : "pointer",
							fontSize: "0.75em",
							fontWeight: 600,
						}}
					>
						Refresh
					</button>
					<button
						type="button"
						onClick={onCollectCoverage}
						disabled={isCollectingCoverage || isGateLoading}
						style={{
							padding: "4px 10px",
							borderRadius: "999px",
							border: "1px solid #333",
							background:
								isCollectingCoverage || isGateLoading ? "#2a2a2a" : "#2f2f2f",
							color: isCollectingCoverage || isGateLoading ? "#777" : "#aaa",
							cursor:
								isCollectingCoverage || isGateLoading
									? "not-allowed"
									: "pointer",
							fontSize: "0.75em",
							fontWeight: 600,
						}}
					>
						{isCollectingCoverage ? "Collecting..." : "Collect Coverage"}
					</button>
				</div>
				<div
					style={{
						display: "flex",
						flexDirection: "column",
						alignItems: "flex-end",
						gap: "2px",
						fontSize: "0.85em",
						color: gateStatusColor,
					}}
				>
					<div>{gateStatusLabel}</div>
					<div style={{ fontSize: "0.8em", color: "#777" }}>
						Updated {formatTimestamp(lastGateRefresh)}
					</div>
				</div>
			</div>

			{isGateLoading ? (
				<div style={{ fontSize: "0.85em", color: "#aaa" }}>
					Loading workflow gates...
				</div>
			) : gateError ? (
				<div
					style={{
						fontSize: "0.85em",
						color: "#ff7b72",
						display: "flex",
						alignItems: "center",
						gap: "8px",
						flexWrap: "wrap",
					}}
				>
					<span>{gateError}</span>
					<button
						type="button"
						onClick={onRefresh}
						disabled={isGateLoading}
						style={{
							padding: "4px 10px",
							borderRadius: "999px",
							border: "1px solid #333",
							background: isGateLoading ? "#2a2a2a" : "#2f2f2f",
							color: isGateLoading ? "#777" : "#aaa",
							cursor: isGateLoading ? "not-allowed" : "pointer",
							fontSize: "0.75em",
							fontWeight: 600,
						}}
					>
						Retry
					</button>
				</div>
			) : gateState ? (
				<div
					style={{
						display: "flex",
						flexDirection: "column",
						gap: "6px",
					}}
				>
					<div style={{ fontSize: "0.85em", color: "#aaa" }}>
						Summary: {gateState.summary.passed}/{gateState.summary.total}{" "}
						passing, {gateState.summary.failed} failing
					</div>
					{gateState.coverageReport && (
						<div
							style={{
								fontSize: "0.85em",
								color:
									gateState.coverageReport.currentPercent <
									gateState.coverageReport.thresholdPercent
										? "#ff7b72"
										: "#7ee787",
							}}
						>
							Coverage: {gateState.coverageReport.currentPercent.toFixed(1)}%
							(threshold: {gateState.coverageReport.thresholdPercent.toFixed(1)}
							%)
						</div>
					)}
					{coverageError && (
						<div style={{ fontSize: "0.85em", color: "#ff7b72" }}>
							Coverage error: {coverageError}
						</div>
					)}
					{gateState.missingCategories.length > 0 && (
						<div style={{ fontSize: "0.85em", color: "#ffb86c" }}>
							Missing: {gateState.missingCategories.join(", ")}
						</div>
					)}
					{gateState.warning && (
						<div style={{ fontSize: "0.85em", color: "#ffb86c" }}>
							{gateState.warning}
						</div>
					)}
					{gateState.reasons.length > 0 && (
						<ul
							style={{
								margin: "0 0 0 16px",
								padding: 0,
								fontSize: "0.85em",
								color: "#ccc",
							}}
						>
							{gateState.reasons.map((reason) => (
								<li key={`gate-reason-${reason}`}>{reason}</li>
							))}
						</ul>
					)}
				</div>
			) : (
				<div style={{ fontSize: "0.85em", color: "#aaa" }}>
					No workflow data yet.
				</div>
			)}
		</div>
	);
}