"use server";

import { revalidatePath } from "next/cache";
import { systemMutationService } from "@/features/housekeeping/domains/system/services/mutations";
import { createHousekeepingCapabilityContext } from "@/features/housekeeping/foundation/capability-context";
import { createCorrelationId } from "@/features/housekeeping/foundation/correlation";
import { requirePermission } from "@/lib/admin/guard";
import { PERMS } from "@/lib/permissions";

// Maintenance mode lives in three CMS-owned website_settings rows (mirrors
// AtomCMS's MaintenanceToggle Livewire component):
//   maintenance_enabled        '1' | '0'
//   maintenance_message        free text (HTML allowed, shown on the splash)
//   min_maintenance_login_rank int as string (min rank that may still log in)
// The Laravel login flow reads these via setting() to gate non-staff logins
// while maintenance is on, so the website_settings keys are the source of truth.

function mutationContext(staff: {
	id: number;
	rank: number;
	username: string;
}) {
	const matches = (slug: string) => slug === PERMS.SETTINGS_EDIT;
	return {
		capability: createHousekeepingCapabilityContext(staff, {
			isSuperAdmin: false,
			has: matches,
			hasAny: (...slugs: string[]) => slugs.some(matches),
			hasAll: (...slugs: string[]) => slugs.every(matches),
		}),
		correlationId: createCorrelationId(),
	};
}

export async function saveMaintenance(formData: FormData): Promise<void> {
	const staff = await requirePermission(PERMS.SETTINGS_EDIT);

	// Checkbox: present only when ticked. Normalise to the '1'/'0' string the
	// emulator/Laravel side expects.
	const enabled = formData.get("enabled") != null ? "1" : "0";

	const message = String(formData.get("message") ?? "").normalize("NFC");

	// Coerce the rank to a non-negative integer; fall back to AtomCMS's default
	// of 5 when the field is blank or garbage.
	const rawRank = String(formData.get("min_rank") ?? "")
		.normalize("NFC")
		.trim();
	const parsedRank = Number.parseInt(rawRank, 10);
	const minRank =
		Number.isFinite(parsedRank) && parsedRank >= 0 ? parsedRank : 5;

	const result = await systemMutationService.execute(
		mutationContext(staff),
		"operations.maintenance.update",
		{
			enabled: enabled === "1",
			message,
			minimumLoginRank: minRank,
		},
	);
	if (!result.ok) throw new Error(result.error.messageKey);
	revalidatePath("/ase/system/operations/maintenance");
}