import { z } from "zod";
import { booleanCoercion, dnsHostnameRegex, dnsServerValidation } from "./shared.js";
import { GeoContinents } from "@/domain/geo-checks/geo-check.type.js";
import {
	DnsRecordTypes,
	HttpMethods,
	HttpStatusCodeSet,
	MonitorMatchMethods,
	MonitorStatuses,
	MonitorTypes,
	PageSpeedStrategies,
} from "@/domain/monitors/monitor.types.js";

const httpStatusCode = z.number().refine((code) => HttpStatusCodeSet.has(code), { message: "Must be a valid HTTP status code" });

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

export const getMonitorByIdQueryValidation = z.object({
	status: booleanCoercion.optional(),
	sortOrder: z.enum(["asc", "desc"]).optional(),
	limit: z.coerce.number().optional(),
	dateRange: z.enum(["recent", "hour", "day", "week", "month", "all"]).optional(),
	numToDisplay: z.coerce.number().optional(),
	normalize: booleanCoercion.optional(),
	continent: z.union([z.enum(GeoContinents), z.array(z.enum(GeoContinents))]).optional(),
});

export const getMonitorsByTeamIdParamValidation = z.object({});

export const getMonitorsByTeamIdQueryValidation = z.object({
	type: z.union([z.enum(MonitorTypes), z.array(z.enum(MonitorTypes))]).optional(),
	filter: z.union([z.string(), z.literal("")]).optional(),
	tags: z.union([z.string(), z.array(z.string())]).optional(),
});

export const getMonitorsWithChecksQueryValidation = z.object({
	limit: z.coerce.number().int().min(1).max(100).optional(),
	page: z.coerce.number().int().min(0).optional(),
	rowsPerPage: z.coerce.number().int().min(1).max(100).optional(),
	filter: z.union([z.string(), z.literal("")]).optional(),
	field: z.string().optional(),
	order: z.enum(["asc", "desc"]).optional(),
	type: z.union([z.enum(MonitorTypes), z.array(z.enum(MonitorTypes))]).optional(),
	tags: z.union([z.string(), z.array(z.string())]).optional(),
	explain: booleanCoercion.optional(),
});

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

const refineDnsHostname = (body: { type?: string; url?: string }, ctx: z.RefinementCtx) => {
	if (body.type === "dns" && body.url && !dnsHostnameRegex.test(body.url)) {
		ctx.addIssue({
			code: "custom",
			path: ["url"],
			message: "Enter a valid domain (e.g. www.example.com)",
		});
	}
};

const refineStrategyType = (body: { type?: string; strategy?: string }, ctx: z.RefinementCtx) => {
	if (body.strategy !== undefined && body.type !== undefined && body.type !== "pagespeed") {
		ctx.addIssue({
			code: "custom",
			path: ["strategy"],
			message: "Strategy is only valid for pagespeed monitors",
		});
	}
};

const refineHeadMatching = (body: { method?: string; useAdvancedMatching?: boolean; jsonPath?: string }, ctx: z.RefinementCtx) => {
	if (body.method === "HEAD" && (body.useAdvancedMatching === true || (body.jsonPath ?? "") !== "")) {
		ctx.addIssue({
			code: "custom",
			path: ["method"],
			message: "HEAD requests have no response body, so they cannot use advanced matching or a JSON path",
		});
	}
};

export const createMonitorBodyValidation = z
	.object({
		_id: z.string().optional(),
		name: z.string().min(1, "Name is required"),
		description: z.union([z.string(), z.literal("")]).optional(),
		type: z.enum(MonitorTypes, "Invalid monitor type"),
		statusWindowSize: z.number().min(1).max(20).default(5),
		statusWindowThreshold: z.number().min(1).max(100).default(60),
		url: z.string().min(1, "URL is required"),
		ignoreTlsErrors: z.boolean().default(false),
		useAdvancedMatching: z.boolean().default(false),
		port: z.number().optional(),
		isActive: z.boolean().optional(),
		interval: z.number().optional(),
		cpuAlertThreshold: z.number().optional(),
		memoryAlertThreshold: z.number().optional(),
		diskAlertThreshold: z.number().optional(),
		tempAlertThreshold: z.number().optional(),
		notifications: z.array(z.string()).optional(),
		tags: z.array(z.string()).optional(),
		customUpCodes: z.array(httpStatusCode).default([]),
		secret: z.string().optional(),
		jsonPath: z.union([z.string(), z.literal("")]).optional(),
		expectedValue: z.union([z.string(), z.literal("")]).optional(),
		matchMethod: z.union([z.enum(MonitorMatchMethods), z.literal("")]).optional(),
		method: z.enum(HttpMethods).optional(),
		gameId: z.union([z.string(), z.literal("")]).optional(),
		grpcServiceName: z.union([z.string(), z.literal("")]).default(""),
		strategy: z.enum(PageSpeedStrategies).optional(),
		selectedDisks: z.array(z.string()).optional(),
		group: z.union([z.string().max(50).trim(), z.null(), z.literal("")]).optional(),
		geoCheckEnabled: z.boolean().optional(),
		geoCheckLocations: z.array(z.enum(GeoContinents)).optional(),
		geoCheckInterval: z.number().min(300000).optional(),
		dnsServer: dnsServerValidation.optional(),
		dnsRecordType: z.enum(DnsRecordTypes).optional(),
	})
	.superRefine(refineDnsHostname)
	.superRefine(refineStrategyType)
	.superRefine(refineHeadMatching);

export const editMonitorBodyValidation = z
	.object({
		name: z.string().optional(),
		type: z.enum(MonitorTypes).optional(),
		url: z.string().optional(),
		statusWindowSize: z.number().min(1).max(20).default(5),
		statusWindowThreshold: z.number().min(1).max(100).default(60),
		description: z.union([z.string(), z.literal("")]).optional(),
		interval: z.number().optional(),
		notifications: z.array(z.string()).optional(),
		tags: z.array(z.string()).optional(),
		customUpCodes: z.array(httpStatusCode).optional(),
		secret: z.string().optional(),
		ignoreTlsErrors: z.boolean().optional(),
		useAdvancedMatching: z.boolean().optional(),
		jsonPath: z.union([z.string(), z.literal("")]).optional(),
		expectedValue: z.union([z.string(), z.literal("")]).optional(),
		matchMethod: z.union([z.enum(MonitorMatchMethods), z.literal("")]).optional(),
		method: z.enum(HttpMethods).optional(),
		port: z.number().min(1).max(65535).optional(),
		cpuAlertThreshold: z.number().optional(),
		memoryAlertThreshold: z.number().optional(),
		diskAlertThreshold: z.number().optional(),
		tempAlertThreshold: z.number().optional(),
		gameId: z.union([z.string(), z.literal("")]).optional(),
		grpcServiceName: z.union([z.string(), z.literal("")]).optional(),
		strategy: z.enum(PageSpeedStrategies).optional(),
		selectedDisks: z.array(z.string()).optional(),
		group: z.union([z.string().max(50).trim(), z.null(), z.literal("")]).optional(),
		geoCheckEnabled: z.boolean().optional(),
		geoCheckLocations: z.array(z.enum(GeoContinents)).optional(),
		geoCheckInterval: z.number().min(300000).optional(),
		dnsServer: dnsServerValidation.optional(),
		dnsRecordType: z.enum(DnsRecordTypes).optional(),
	})
	.superRefine(refineDnsHostname)
	.superRefine(refineStrategyType)
	.superRefine(refineHeadMatching);

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

export const bulkPauseMonitorBodyValidation = z.object({
	monitorIds: z
		.array(z.string().min(1, "Monitor ID must not be empty"))
		.min(1, "At least one monitor ID is required")
		.max(100, "Cannot bulk update more than 100 monitors at once"),
	pause: z.boolean(),
});

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

export const getUptimeDetailsByIdQueryValidation = z.object({
	dateRange: z.enum(["recent", "hour", "day", "week", "month", "all"]),
	normalize: booleanCoercion.optional(),
});

const importedMonitorSchema = z
	.object({
		id: z.string().optional(),
		userId: z.string().optional(),
		teamId: z.string().optional(),
		name: z.string().min(1, "Name is required"),
		description: z.union([z.string(), z.literal("")]).optional(),
		status: z.enum(["up", "down", "paused", "initializing", "maintenance", "breached"]).default("initializing"),
		statusWindow: z.array(z.boolean()).default([]),
		statusWindowSize: z.number().min(1).max(20).default(5),
		statusWindowThreshold: z.number().min(1).max(100).default(60),
		type: z.enum(MonitorTypes, "Invalid monitor type"),
		ignoreTlsErrors: z.boolean().default(false),
		useAdvancedMatching: z.boolean().default(false),
		jsonPath: z.union([z.string(), z.literal("")]).optional(),
		expectedValue: z.union([z.string(), z.literal("")]).optional(),
		matchMethod: z.union([z.enum(MonitorMatchMethods), z.literal("")]).optional(),
		method: z.enum(HttpMethods).optional().default("GET"),
		url: z.string().min(1, "URL is required"),
		port: z.number().optional(),
		isActive: z.boolean().default(true),
		interval: z.number().default(60000),
		uptimePercentage: z.number().optional(),
		notifications: z.array(z.string()).default([]),
		tags: z.array(z.string()).default([]),
		customUpCodes: z.array(httpStatusCode).default([]),
		secret: z.string().optional(),
		cpuAlertThreshold: z.number().default(100),
		cpuAlertCounter: z.number().default(5),
		memoryAlertThreshold: z.number().default(100),
		memoryAlertCounter: z.number().default(5),
		diskAlertThreshold: z.number().default(100),
		diskAlertCounter: z.number().default(5),
		tempAlertThreshold: z.number().default(100),
		tempAlertCounter: z.number().default(5),
		selectedDisks: z.array(z.string()).default([]),
		gameId: z.union([z.string(), z.literal("")]).optional(),
		grpcServiceName: z.union([z.string(), z.literal("")]).default(""),
		strategy: z.enum(PageSpeedStrategies).optional(),
		group: z.union([z.string().max(50).trim(), z.null()]).default(null),
		geoCheckEnabled: z.boolean().default(false),
		geoCheckLocations: z.array(z.enum(GeoContinents)).default([]),
		geoCheckInterval: z.number().min(300000).default(300000),
		dnsServer: dnsServerValidation.optional(),
		dnsRecordType: z.enum(DnsRecordTypes).optional(),
		createdAt: z.string().optional(),
		updatedAt: z.string().optional(),
	})
	.superRefine(refineDnsHostname)
	.superRefine(refineStrategyType)
	.superRefine(refineHeadMatching);

export const importMonitorsBodyValidation = z.object({
	monitors: z.array(importedMonitorSchema).min(1, "At least one monitor is required"),
});

export type ImportedMonitor = z.output<typeof importedMonitorSchema>;

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

export const getHardwareDetailsByIdQueryValidation = z.object({
	dateRange: z.enum(["recent", "hour", "day", "week", "month", "all"]).optional(),
});

// Canonical monitor shape returned by /monitors endpoints. Keep aligned with
// what the controllers actually serialize.
export const monitorResponseSchema = z
	.object({
		_id: z.string(),
		name: z.string(),
		description: z.string().optional(),
		type: z.enum(MonitorTypes),
		url: z.string(),
		port: z.number().optional(),
		isActive: z.boolean(),
		interval: z.number(),
		status: z.enum(MonitorStatuses),
		statusWindowSize: z.number(),
		statusWindowThreshold: z.number(),
		ignoreTlsErrors: z.boolean(),
		useAdvancedMatching: z.boolean(),
		jsonPath: z.string().optional(),
		expectedValue: z.string().optional(),
		matchMethod: z.enum(MonitorMatchMethods).optional(),
		method: z.enum(HttpMethods),
		notifications: z.array(z.string()),
		tags: z.array(z.string()),
		customUpCodes: z.array(httpStatusCode).optional(),
		secret: z.string().optional(),
		cpuAlertThreshold: z.number(),
		memoryAlertThreshold: z.number(),
		diskAlertThreshold: z.number(),
		tempAlertThreshold: z.number(),
		selectedDisks: z.array(z.string()),
		gameId: z.string().optional(),
		grpcServiceName: z.string().optional(),
		group: z.string().nullable().optional(),
		geoCheckEnabled: z.boolean(),
		geoCheckLocations: z.array(z.enum(GeoContinents)),
		geoCheckInterval: z.number(),
		dnsServer: z.string().optional(),
		dnsRecordType: z.enum(DnsRecordTypes).optional(),
		teamId: z.string(),
		userId: z.string(),
		createdAt: z.string(),
		updatedAt: z.string(),
		lastEvaluatedAt: z.number(),
	})
	.passthrough();