import { z } from "zod";
import { NtfyAuthTypes } from "@/domain/notifications/notification.type.js";

//****************************************
// Notification Validations
//****************************************

// ntfy stores its secret in accessToken for both auth types: the bearer token for
// "token", the password for "basic". Reject partially filled credentials so a channel
// can't be saved looking authenticated while posting anonymously.
const refineNtfyAuth = (body: { ntfyAuthType?: string; ntfyUsername?: string; accessToken?: string }, ctx: z.RefinementCtx) => {
	const authType = body.ntfyAuthType ?? "none";

	if (authType === "none") {
		if (body.accessToken) {
			ctx.addIssue({ code: "custom", path: ["accessToken"], message: "Select an authentication type to use an access token" });
		}
		if (body.ntfyUsername) {
			ctx.addIssue({ code: "custom", path: ["ntfyUsername"], message: "Select an authentication type to use a username" });
		}
		return;
	}

	if (authType === "token") {
		if (!body.accessToken) {
			ctx.addIssue({ code: "custom", path: ["accessToken"], message: "Access token is required for token authentication" });
		}
		if (body.ntfyUsername) {
			ctx.addIssue({ code: "custom", path: ["ntfyUsername"], message: "Username is only used with basic authentication" });
		}
		return;
	}

	if (!body.ntfyUsername) {
		ctx.addIssue({ code: "custom", path: ["ntfyUsername"], message: "Username is required for basic authentication" });
	}
	if (!body.accessToken) {
		ctx.addIssue({ code: "custom", path: ["accessToken"], message: "Password is required for basic authentication" });
	}
};

export const createNotificationBodyValidation = z.discriminatedUnion("type", [
	// Email notification
	z.object({
		notificationName: z.string().min(1, "Notification name is required"),
		type: z.literal("email"),
		address: z.email("Please enter a valid e-mail address"),
		homeserverUrl: z.union([z.string(), z.literal("")]).optional(),
		roomId: z.union([z.string(), z.literal("")]).optional(),
		accessToken: z.union([z.string(), z.literal("")]).optional(),
	}),
	// Webhook notification
	z.object({
		notificationName: z.string().min(1, "Notification name is required"),
		type: z.literal("webhook"),
		address: z.url({ message: "Please enter a valid Webhook URL" }),
		homeserverUrl: z.union([z.string(), z.literal("")]).optional(),
		roomId: z.union([z.string(), z.literal("")]).optional(),
		accessToken: z.union([z.string(), z.literal("")]).optional(),
	}),
	// Rocket.Chat notification
	z.object({
		notificationName: z.string().min(1, "Notification name is required"),
		type: z.literal("rocket_chat"),
		address: z.url({
			protocol: /^https?$/,
			message: "Please enter a valid Rocket.Chat webhook URL",
		}),
	}),
	// Slack notification
	z.object({
		notificationName: z.string().min(1, "Notification name is required"),
		type: z.literal("slack"),
		address: z.url({ message: "Please enter a valid Webhook URL" }),
		homeserverUrl: z.union([z.string(), z.literal("")]).optional(),
		roomId: z.union([z.string(), z.literal("")]).optional(),
		accessToken: z.union([z.string(), z.literal("")]).optional(),
	}),
	// Discord notification
	z.object({
		notificationName: z.string().min(1, "Notification name is required"),
		type: z.literal("discord"),
		address: z.url({ message: "Please enter a valid Webhook URL" }),
		homeserverUrl: z.union([z.string(), z.literal("")]).optional(),
		roomId: z.union([z.string(), z.literal("")]).optional(),
		accessToken: z.union([z.string(), z.literal("")]).optional(),
	}),
	// PagerDuty notification
	z.object({
		notificationName: z.string().min(1, "Notification name is required"),
		type: z.literal("pager_duty"),
		address: z.string().min(1, "PagerDuty integration key is required"),
		homeserverUrl: z.union([z.string(), z.literal("")]).optional(),
		roomId: z.union([z.string(), z.literal("")]).optional(),
		accessToken: z.union([z.string(), z.literal("")]).optional(),
	}),
	// Matrix notification
	z.object({
		notificationName: z.string().min(1, "Notification name is required"),
		type: z.literal("matrix"),
		address: z.union([z.string(), z.literal("")]).optional(),
		homeserverUrl: z.url({ message: "Please enter a valid Homeserver URL" }),
		roomId: z.string().min(1, "Room ID is required"),
		accessToken: z.string().min(1, "Access Token is required"),
	}),
	// Teams notification
	z.object({
		notificationName: z.string().min(1, "Notification name is required"),
		type: z.literal("teams"),
		address: z.url({ message: "Please enter a valid Webhook URL" }),
	}),
	// Telegram notification
	z.object({
		notificationName: z.string().min(1, "Notification name is required"),
		type: z.literal("telegram"),
		address: z.string().min(1, "Chat ID is required"),
		accessToken: z.string().min(1, "Bot token is required"),
	}),
	// Pushover notification
	z.object({
		notificationName: z.string().min(1, "Notification name is required"),
		type: z.literal("pushover"),
		address: z.string().min(1, "User key is required"),
		accessToken: z.string().min(1, "App token is required"),
	}),
	// Signalgrid notification
	z.object({
		notificationName: z.string().min(1, "Notification name is required"),
		type: z.literal("signalgrid"),
		address: z.string().min(1, "Channel is required"),
		accessToken: z.string().min(1, "Client key is required"),
	}),
	// Twilio SMS notification
	z.object({
		notificationName: z.string().min(1, "Notification name is required"),
		type: z.literal("twilio"),
		accountSid: z.string().min(1, "Account SID is required"),
		accessToken: z.string().min(1, "Auth token is required"),
		phone: z.string().min(1, "Recipient phone number is required"),
		twilioPhoneNumber: z.string().min(1, "Twilio phone number is required"),
	}),
	// ntfy notification
	z
		.object({
			notificationName: z.string().min(1, "Notification name is required"),
			type: z.literal("ntfy"),
			address: z.url({ message: "Please enter a valid ntfy server URL" }),
			topic: z.string().min(1, "Topic is required"),
			ntfyAuthType: z.enum(NtfyAuthTypes).optional(),
			ntfyUsername: z.union([z.string(), z.literal("")]).optional(),
			accessToken: z.union([z.string(), z.literal("")]).optional(),
		})
		.superRefine(refineNtfyAuth),
]);

export const testNotificationBodyValidation = createNotificationBodyValidation;

export const deleteNotificationParamValidation = z.object({
	id: z.string().min(1, "Notification ID is required"),
});
export const getNotificationByIdParamValidation = z.object({
	id: z.string().min(1, "Notification ID is required"),
});
export const editNotificationParamValidation = z.object({
	id: z.string().min(1, "Notification ID is required"),
});

export const testAllNotificationsBodyValidation = z.object({
	monitorId: z.string().min(1, "Monitor ID is required"),
});

export const sendTestEmailBodyValidation = z.object({
	to: z.string().min(1, "To field is required"),
	systemEmailHost: z.string().optional(),
	systemEmailPort: z.number().optional(),
	systemEmailSecure: z.boolean().optional(),
	systemEmailPool: z.boolean().optional(),
	systemEmailAddress: z.string().optional(),
	systemEmailDisplayName: z.string().optional(),
	systemEmailPassword: z.string().optional(),
	systemEmailUser: z.string().optional(),
	systemEmailConnectionHost: z.union([z.string(), z.literal("")]).optional(),
	systemEmailIgnoreTLS: z.boolean().optional(),
	systemEmailRequireTLS: z.boolean().optional(),
	systemEmailRejectUnauthorized: z.boolean().optional(),
	systemEmailTLSServername: z.union([z.string(), z.literal("")]).optional(),
});

export const updateNotificationsValidation = z
	.object({
		monitorIds: z.array(z.string()).min(1, "At least one monitor ID is required").max(100, "Cannot update more than 100 monitors at once"),
		notificationIds: z.array(z.string()).max(100, "Cannot specify more than 100 notification IDs at once"),
		action: z.enum(["add", "remove", "set"] as const),
	})
	.refine(
		(data) => {
			if (data.action !== "set" && data.notificationIds.length === 0) return false;
			return true;
		},
		{
			message: "Notification IDs cannot be empty unless action is 'set'",
			path: ["notificationIds"],
		}
	);