"use server";

import { revalidatePath } from "next/cache";
import {
	contentMutationService,
	createContentMutationInvocation,
} from "@/features/housekeeping/domains/content/services/mutations";
import { createCorrelationId } from "@/features/housekeeping/foundation/contracts";
import { requirePermission } from "@/lib/admin/guard";
import { PERMS } from "@/lib/permissions";

function templateInput(formData: FormData) {
	return {
		name: String(formData.get("name") ?? "")
			.normalize("NFC")
			.trim()
			.slice(0, 255),
		subject: String(formData.get("subject") ?? "")
			.normalize("NFC")
			.trim()
			.slice(0, 255),
		body: String(formData.get("body") ?? "").normalize("NFC"),
		variables: String(formData.get("variables") ?? "")
			.normalize("NFC")
			.trim(),
		isActive: formData.get("isActive") != null,
	};
}

export async function createEmailTemplate(formData: FormData): Promise<void> {
	const staff = await requirePermission(PERMS.PAGES_EDIT);
	const input = templateInput(formData);
	if (!input.name || !input.subject || !input.body) return;
	const result = await contentMutationService.execute(
		createContentMutationInvocation(staff, createCorrelationId()),
		"email-template.change",
		{ action: "create", ...input },
	);
	if (!result.ok) throw new Error("Email template creation failed");
	revalidatePath("/admin/email-templates");
}

export async function updateEmailTemplate(formData: FormData): Promise<void> {
	const staff = await requirePermission(PERMS.PAGES_EDIT);
	const id = String(formData.get("id") ?? "").normalize("NFC");
	if (!/^\d+$/u.test(id)) return;
	const input = templateInput(formData);
	if (!input.subject || !input.body) return;
	const result = await contentMutationService.execute(
		createContentMutationInvocation(staff, createCorrelationId()),
		"email-template.change",
		{ action: "update", id, ...input },
	);
	if (!result.ok) throw new Error("Email template update failed");
	revalidatePath("/admin/email-templates");
}

export async function deleteEmailTemplate(formData: FormData): Promise<void> {
	const staff = await requirePermission(PERMS.PAGES_EDIT);
	const id = String(formData.get("id") ?? "")
		.normalize("NFC")
		.trim();
	if (!/^[1-9]\d*$/u.test(id)) return;
	const result = await contentMutationService.execute(
		createContentMutationInvocation(staff, createCorrelationId()),
		"email-template.change",
		{ action: "delete", id },
	);
	if (!result.ok) throw new Error("Email template deletion failed");
	revalidatePath("/admin/email-templates");
}