/**
 * Plugin Manager Component
 *
 * Displays list of configured plugins with enable/disable controls.
 * Extended with marketplace features: source badges, update checking,
 * update/uninstall for marketplace-installed plugins.
 */

import { Badge, Button, Checkbox, Switch, Toast } from "@cloudflare/kumo";
import { plural } from "@lingui/core/macro";
import { useLingui } from "@lingui/react/macro";
import {
	PuzzlePiece,
	Gear,
	FileText,
	SquaresFour,
	WebhooksLogo,
	CaretDown,
	ArrowsClockwise,
	Storefront,
	Trash,
	ShieldCheck,
} from "@phosphor-icons/react";
import { useQuery, useMutation, useQueryClient } from "@tanstack/react-query";
import { Link } from "@tanstack/react-router";
import * as React from "react";

import {
	fetchPlugins,
	enablePlugin,
	disablePlugin,
	type PluginInfo,
	type AdminManifest,
	CAPABILITY_LABELS,
} from "../lib/api";
import {
	checkPluginUpdates,
	updateMarketplacePlugin,
	uninstallMarketplacePlugin,
	type PluginUpdateInfo,
} from "../lib/api/marketplace.js";
import {
	RegistryUpdateEscalationError,
	uninstallRegistryPlugin,
	updateRegistryPlugin,
	type RegistryUpdateOpts,
} from "../lib/api/registry.js";
import { safeIconUrl } from "../lib/url.js";
import { cn } from "../lib/utils";
import { CaretNext } from "./ArrowIcons.js";
import { CapabilityConsentDialog } from "./CapabilityConsentDialog.js";
import { DialogError, getMutationError } from "./DialogError.js";
import { RouterLinkButton } from "./RouterLinkButton.js";

export interface PluginManagerProps {
	/** Admin manifest — used to check if marketplace is configured */
	manifest?: AdminManifest;
}

export function PluginManager({ manifest }: PluginManagerProps) {
	const { t } = useLingui();
	const queryClient = useQueryClient();
	const toastManager = Toast.useToastManager();
	const hasMarketplace = !!manifest?.marketplace;

	const {
		data: plugins,
		isLoading,
		error,
	} = useQuery({
		queryKey: ["plugins"],
		queryFn: fetchPlugins,
	});

	const {
		data: updates,
		refetch: refetchUpdates,
		isFetching: isCheckingUpdates,
	} = useQuery({
		queryKey: ["plugin-updates"],
		queryFn: checkPluginUpdates,
		enabled: false, // Only fetch on demand
	});

	const enableMutation = useMutation({
		mutationFn: enablePlugin,
		onSuccess: (plugin) => {
			void queryClient.invalidateQueries({ queryKey: ["plugins"] });
			void queryClient.invalidateQueries({ queryKey: ["manifest"] });
			toastManager.add({
				title: t`Plugin enabled`,
				description: t`${plugin.name} is now active`,
			});
		},
		onError: (err) => {
			toastManager.add({
				title: t`Failed to enable plugin`,
				description: err instanceof Error ? err.message : t`An error occurred`,
				type: "error",
			});
		},
	});

	const disableMutation = useMutation({
		mutationFn: disablePlugin,
		onSuccess: (plugin) => {
			void queryClient.invalidateQueries({ queryKey: ["plugins"] });
			void queryClient.invalidateQueries({ queryKey: ["manifest"] });
			toastManager.add({
				title: t`Plugin disabled`,
				description: t`${plugin.name} has been deactivated`,
			});
		},
		onError: (err) => {
			toastManager.add({
				title: t`Failed to disable plugin`,
				description: err instanceof Error ? err.message : t`An error occurred`,
				type: "error",
			});
		},
	});

	const updateMap = React.useMemo(() => {
		if (!updates) return new Map<string, PluginUpdateInfo>();
		return new Map(updates.map((u) => [u.pluginId, u]));
	}, [updates]);

	const hasUpdatableSources = plugins?.some(
		(p) => p.source === "marketplace" || p.source === "registry",
	);

	if (isLoading) {
		return (
			<div className="space-y-6">
				<h1 className="text-3xl font-bold">{t`Plugins`}</h1>
				<div className="text-kumo-subtle">{t`Loading plugins...`}</div>
			</div>
		);
	}

	if (error) {
		return (
			<div className="space-y-6">
				<h1 className="text-3xl font-bold">{t`Plugins`}</h1>
				<div className="text-kumo-danger">{t`Failed to load plugins: ${error.message}`}</div>
			</div>
		);
	}

	return (
		<div className="space-y-6">
			<div className="flex items-center justify-between">
				<h1 className="text-3xl font-bold">{t`Plugins`}</h1>
				<div className="flex items-center gap-3">
					{hasUpdatableSources && (
						<Button
							variant="ghost"
							onClick={() => void refetchUpdates()}
							disabled={isCheckingUpdates}
							icon={<ArrowsClockwise className={cn(isCheckingUpdates && "animate-spin")} />}
						>
							{t`Check for updates`}
						</Button>
					)}
					{hasMarketplace && (
						<RouterLinkButton to="/plugins/marketplace" variant="ghost" icon={<Storefront />}>
							{t`Marketplace`}
						</RouterLinkButton>
					)}
					<span className="text-sm text-kumo-subtle">{t`${plugins?.length ?? 0} plugins`}</span>
				</div>
			</div>

			<p className="text-kumo-subtle">
				{t`Manage installed plugins. Enable or disable plugins to control their functionality.`}
			</p>

			<div className="grid gap-4">
				{plugins?.map((plugin) => (
					<PluginCard
						key={plugin.id}
						plugin={plugin}
						updateInfo={updateMap.get(plugin.id)}
						onEnable={() => enableMutation.mutate(plugin.id)}
						onDisable={() => disableMutation.mutate(plugin.id)}
						isToggling={enableMutation.isPending || disableMutation.isPending}
						hasMarketplace={hasMarketplace}
					/>
				))}
			</div>

			{plugins?.length === 0 && (
				<div className="rounded-lg border bg-kumo-base p-8 text-center">
					<PuzzlePiece className="mx-auto h-12 w-12 text-kumo-subtle" />
					<h3 className="mt-4 text-lg font-medium">{t`No plugins configured`}</h3>
					<p className="mt-2 text-sm text-kumo-subtle">
						{hasMarketplace ? (
							<>
								{t`Browse the`}{" "}
								<Link to="/plugins/marketplace" className="text-kumo-brand hover:underline">
									{t`marketplace`}
								</Link>{" "}
								{t`to install plugins, or add them to your astro.config.mjs.`}
							</>
						) : (
							t`Add plugins to your astro.config.mjs to extend EmDash functionality.`
						)}
					</p>
				</div>
			)}
		</div>
	);
}

interface PluginCardProps {
	plugin: PluginInfo;
	updateInfo?: PluginUpdateInfo;
	onEnable: () => void;
	onDisable: () => void;
	isToggling: boolean;
	/** Whether the marketplace is configured (controls "View in Marketplace" link) */
	hasMarketplace: boolean;
}

function PluginCard({
	plugin,
	updateInfo,
	onEnable,
	onDisable,
	isToggling,
	hasMarketplace,
}: PluginCardProps) {
	const { t } = useLingui();
	const [expanded, setExpanded] = React.useState(false);
	const [showUpdateConsent, setShowUpdateConsent] = React.useState(false);
	const [showUninstallConfirm, setShowUninstallConfirm] = React.useState(false);
	const [registryEscalation, setRegistryEscalation] =
		React.useState<RegistryUpdateEscalationError | null>(null);
	const queryClient = useQueryClient();
	const toastManager = Toast.useToastManager();

	const isMarketplace = plugin.source === "marketplace";
	const isRegistry = plugin.source === "registry";
	const hasUpdate = !!updateInfo && updateInfo.installed !== updateInfo.latest;

	const updateMutation = useMutation({
		mutationFn: (opts: RegistryUpdateOpts) =>
			isRegistry
				? updateRegistryPlugin(plugin.id, opts)
				: updateMarketplacePlugin(plugin.id, { confirmCapabilities: true }),
		onSuccess: () => {
			setShowUpdateConsent(false);
			setRegistryEscalation(null);
			void queryClient.invalidateQueries({ queryKey: ["plugins"] });
			void queryClient.invalidateQueries({ queryKey: ["plugin-updates"] });
			void queryClient.invalidateQueries({ queryKey: ["manifest"] });
			toastManager.add({
				title: t`Plugin updated`,
				description: t`${plugin.name} updated to v${updateInfo?.latest}`,
			});
		},
		onError: (err) => {
			if (err instanceof RegistryUpdateEscalationError) {
				setRegistryEscalation(err);
				setShowUpdateConsent(true);
			}
		},
	});

	const handleUpdateClick = () => {
		if (isRegistry) {
			// Preflight without confirm flags. Server returns the real
			// capability / route-visibility diff (or just updates if there
			// is none); `onError` opens the consent dialog populated with
			// the actual diff.
			setRegistryEscalation(null);
			updateMutation.mutate({});
		} else {
			setShowUpdateConsent(true);
		}
	};

	const handleUpdateConfirm = () => {
		if (isRegistry) {
			const opts: RegistryUpdateOpts = { confirmCapabilityChanges: true };
			if (registryEscalation?.code === "ROUTE_VISIBILITY_ESCALATION") {
				opts.confirmRouteVisibilityChanges = true;
			}
			updateMutation.mutate(opts);
		} else {
			updateMutation.mutate({});
		}
	};

	const uninstallMutation = useMutation({
		mutationFn: (deleteData: boolean) =>
			isRegistry
				? uninstallRegistryPlugin(plugin.id, { deleteData })
				: uninstallMarketplacePlugin(plugin.id, { deleteData }),
		onSuccess: () => {
			setShowUninstallConfirm(false);
			void queryClient.invalidateQueries({ queryKey: ["plugins"] });
			void queryClient.invalidateQueries({ queryKey: ["manifest"] });
			toastManager.add({
				title: t`Plugin uninstalled`,
				description: t`${plugin.name} has been removed`,
			});
		},
	});

	const handleToggle = () => {
		if (plugin.enabled) {
			onDisable();
		} else {
			onEnable();
		}
	};

	return (
		<>
			<div
				className={cn(
					"rounded-lg border bg-kumo-base transition-colors",
					!plugin.enabled && "opacity-75",
				)}
			>
				<div className="flex items-center gap-4 p-4">
					{/* Plugin icon */}
					{plugin.iconUrl ? (
						<img
							src={safeIconUrl(plugin.iconUrl, 80) ?? undefined}
							alt=""
							className="h-10 w-10 rounded-lg object-cover"
							loading="lazy"
						/>
					) : (
						<div
							className={cn(
								"flex h-10 w-10 items-center justify-center rounded-lg",
								plugin.enabled ? "bg-kumo-brand/10" : "bg-kumo-tint",
							)}
						>
							<PuzzlePiece
								className={cn("h-5 w-5", plugin.enabled ? "text-kumo-brand" : "text-kumo-subtle")}
							/>
						</div>
					)}

					{/* Plugin info */}
					<div className="flex-1 min-w-0">
						<div className="flex items-center gap-2">
							<h3 className="font-semibold truncate">{plugin.name}</h3>
							<span className="text-xs text-kumo-subtle">v{plugin.version}</span>
							{!plugin.enabled && <Badge variant="secondary">{t`Disabled`}</Badge>}
							{isMarketplace && <Badge variant="secondary">{t`Marketplace`}</Badge>}
							{hasUpdate && (
								<Badge variant="outline" className="border-kumo-brand text-kumo-brand">
									{t`v${updateInfo.latest} available`}
								</Badge>
							)}
						</div>

						{/* Description */}
						{plugin.description && (
							<p className="mt-0.5 text-sm text-kumo-subtle line-clamp-1">{plugin.description}</p>
						)}

						{/* Feature indicators + inline capabilities */}
						<div className="flex items-center gap-3 mt-1 text-sm text-kumo-subtle">
							{plugin.hasAdminPages && (
								<span className="flex items-center gap-1">
									<FileText className="h-3 w-3" />
									{t`Pages`}
								</span>
							)}
							{plugin.hasDashboardWidgets && (
								<span className="flex items-center gap-1">
									<SquaresFour className="h-3 w-3" />
									{t`Widgets`}
								</span>
							)}
							{plugin.hasHooks && (
								<span className="flex items-center gap-1">
									<WebhooksLogo className="h-3 w-3" />
									{t`Hooks`}
								</span>
							)}
							{plugin.capabilities.length > 0 && (
								<span
									className="flex items-center gap-1"
									title={plugin.capabilities
										.map((c) => {
											const label = CAPABILITY_LABELS[c];
											return label ? t(label) : c;
										})
										.join(", ")}
								>
									<ShieldCheck className="h-3 w-3" />
									{plural(plugin.capabilities.length, {
										one: "# permission",
										other: "# permissions",
									})}
								</span>
							)}
						</div>
					</div>

					{/* Actions */}
					<div className="flex items-center gap-2">
						{hasUpdate && (
							<Button
								variant="outline"
								size="sm"
								onClick={handleUpdateClick}
								disabled={updateMutation.isPending}
							>
								{updateMutation.isPending ? t`Updating...` : t`Update to v${updateInfo.latest}`}
							</Button>
						)}

						{isMarketplace && hasMarketplace && (
							<RouterLinkButton
								to="/plugins/marketplace/$pluginId"
								params={{ pluginId: plugin.id }}
								variant="ghost"
								size="sm"
								icon={<Storefront />}
							>
								{t`View in Marketplace`}
							</RouterLinkButton>
						)}

						{plugin.hasAdminPages && plugin.enabled && (
							<RouterLinkButton
								to="/plugins/$pluginId/$"
								params={{ pluginId: plugin.id, _splat: "" }}
								aria-label={t`Settings`}
								variant="ghost"
								shape="square"
								icon={<Gear />}
							/>
						)}

						<Switch
							checked={plugin.enabled}
							onCheckedChange={handleToggle}
							disabled={isToggling}
							aria-label={plugin.enabled ? t`Disable plugin` : t`Enable plugin`}
						/>

						<Button
							variant="ghost"
							shape="square"
							aria-label={expanded ? t`Collapse details` : t`Expand details`}
							onClick={() => setExpanded(!expanded)}
							aria-expanded={expanded}
						>
							{expanded ? <CaretDown className="h-4 w-4" /> : <CaretNext className="h-4 w-4" />}
							<span className="sr-only">
								{expanded ? t`Collapse` : t`Expand`} {t`details`}
							</span>
						</Button>
					</div>
				</div>

				{/* Expanded details */}
				{expanded && (
					<div className="border-t px-4 py-3 space-y-3">
						{/* Capabilities */}
						{plugin.capabilities.length > 0 && (
							<div>
								<h4 className="text-xs font-medium text-kumo-subtle uppercase tracking-wider mb-1">
									{t`Capabilities`}
								</h4>
								<div className="flex flex-wrap gap-1">
									{plugin.capabilities.map((cap) => {
										const label = CAPABILITY_LABELS[cap];
										const text = label ? t(label) : cap;
										return (
											<span
												key={cap}
												className="inline-flex items-center rounded-md bg-kumo-tint px-2 py-0.5 text-xs"
												title={text}
											>
												{text}
											</span>
										);
									})}
								</div>
							</div>
						)}

						{/* Source */}
						{isMarketplace && (
							<div>
								<h4 className="text-xs font-medium text-kumo-subtle uppercase tracking-wider mb-1">
									{t`Source`}
								</h4>
								<span className="text-xs text-kumo-subtle">
									{t`Installed from marketplace (v${plugin.marketplaceVersion || plugin.version})`}
								</span>
							</div>
						)}

						{/* Package */}
						{plugin.package && (
							<div>
								<h4 className="text-xs font-medium text-kumo-subtle uppercase tracking-wider mb-1">
									{t`Package`}
								</h4>
								<code className="text-xs bg-kumo-tint px-2 py-0.5 rounded">{plugin.package}</code>
							</div>
						)}

						{/* Timestamps */}
						<div className="grid grid-cols-2 gap-4 text-xs">
							{plugin.installedAt && (
								<div>
									<span className="text-kumo-subtle">{t`Installed:`}</span>{" "}
									{new Date(plugin.installedAt).toLocaleDateString()}
								</div>
							)}
							{plugin.activatedAt && (
								<div>
									<span className="text-kumo-subtle">{t`Last enabled:`}</span>{" "}
									{new Date(plugin.activatedAt).toLocaleDateString()}
								</div>
							)}
							{plugin.deactivatedAt && !plugin.enabled && (
								<div>
									<span className="text-kumo-subtle">{t`Disabled:`}</span>{" "}
									{new Date(plugin.deactivatedAt).toLocaleDateString()}
								</div>
							)}
						</div>

						{/* Uninstall button for any sandboxed source (marketplace + registry). */}
						{(isMarketplace || isRegistry) && (
							<div className="pt-2 border-t">
								<Button
									variant="ghost"
									className="text-kumo-danger hover:text-kumo-danger"
									onClick={() => setShowUninstallConfirm(true)}
									disabled={uninstallMutation.isPending}
									icon={<Trash />}
								>
									{t`Uninstall`}
								</Button>
							</div>
						)}
					</div>
				)}
			</div>

			{/* Update consent dialog */}
			{showUpdateConsent && updateInfo && (
				<CapabilityConsentDialog
					mode="update"
					pluginName={plugin.name}
					capabilities={plugin.capabilities}
					newCapabilities={registryEscalation?.capabilityChanges.added ?? []}
					newlyPublicRoutes={registryEscalation?.routeVisibilityChanges?.newlyPublic ?? []}
					isPending={updateMutation.isPending}
					error={
						updateMutation.error instanceof RegistryUpdateEscalationError
							? null
							: getMutationError(updateMutation.error)
					}
					onConfirm={handleUpdateConfirm}
					onCancel={() => {
						setShowUpdateConsent(false);
						setRegistryEscalation(null);
						updateMutation.reset();
					}}
				/>
			)}

			{/* Uninstall confirmation */}
			{showUninstallConfirm && (
				<UninstallConfirmDialog
					pluginName={plugin.name}
					isPending={uninstallMutation.isPending}
					error={getMutationError(uninstallMutation.error)}
					onConfirm={(deleteData) => uninstallMutation.mutate(deleteData)}
					onCancel={() => {
						setShowUninstallConfirm(false);
						uninstallMutation.reset();
					}}
				/>
			)}
		</>
	);
}

// ---------------------------------------------------------------------------
// Uninstall confirmation dialog
// ---------------------------------------------------------------------------

interface UninstallConfirmDialogProps {
	pluginName: string;
	isPending: boolean;
	error?: string | null;
	onConfirm: (deleteData: boolean) => void;
	onCancel: () => void;
}

export function UninstallConfirmDialog({
	pluginName,
	isPending,
	error,
	onConfirm,
	onCancel,
}: UninstallConfirmDialogProps) {
	const { t } = useLingui();
	const [deleteData, setDeleteData] = React.useState(false);

	return (
		<div
			className="fixed inset-0 z-50 flex items-center justify-center"
			role="dialog"
			aria-modal="true"
			aria-label={t`Uninstall confirmation`}
		>
			<div className="absolute inset-0 bg-black/50" onClick={() => !isPending && onCancel()} />
			<div className="relative w-full max-w-sm rounded-lg border bg-kumo-base shadow-lg">
				<div className="p-6 space-y-4">
					<h2 className="text-lg font-semibold">{t`Uninstall ${pluginName}?`}</h2>
					<p className="text-sm text-kumo-subtle">
						{t`This will remove the plugin and its bundle from your site.`}
					</p>
					<Checkbox
						checked={deleteData}
						onCheckedChange={(checked) => setDeleteData(checked)}
						label={t`Also delete plugin storage data`}
					/>
					<DialogError message={error} />
				</div>
				<div className="flex justify-end gap-3 border-t px-6 py-4">
					<Button variant="ghost" onClick={onCancel} disabled={isPending}>
						{t`Cancel`}
					</Button>
					<Button variant="destructive" onClick={() => onConfirm(deleteData)} disabled={isPending}>
						{isPending ? t`Uninstalling...` : t`Uninstall`}
					</Button>
				</div>
			</div>
		</div>
	);
}

export default PluginManager;