/**
 * Zod schemas for plugin settings validation (run on save).
 */
import { __ } from '@wordpress/i18n';
import { z } from 'zod';

const requiredString = (msg: string) =>
	z.string().trim().min(1, msg);

export const defaultShippingSchema = z.object({
	contactName: requiredString(__('Name is required.', 'parcel2go-shipping')),
	organisation: z.string(),
	property: requiredString(__('Property (House number) is required.', 'parcel2go-shipping')),
	street: requiredString(__('Address line 1 is required.', 'parcel2go-shipping')),
	town: requiredString(__('Town / City is required.', 'parcel2go-shipping')),
	postcode: requiredString(__('Postcode is required.', 'parcel2go-shipping')),
	county: z.string(),
	country: requiredString(__('Country is required.', 'parcel2go-shipping')),
	email: z.email(__('Enter a valid email address.', 'parcel2go-shipping')),
	phone: requiredString(__('Phone is required.', 'parcel2go-shipping')),
});

export const packagePresetSchema = z.object({
	id: z.string().optional(),
	name: z.string().min(1, __('Package name is required.', 'parcel2go-shipping')),
	length: z.number().positive(__('Length must be greater than 0.', 'parcel2go-shipping')),
	width: z.number().positive(__('Width must be greater than 0.', 'parcel2go-shipping')),
	height: z.number().positive(__('Height must be greater than 0.', 'parcel2go-shipping')),
	weight: z.number().optional()
});

export const packagePresetArraySchema = z.array(packagePresetSchema);

export const taxSettingsSchema = z.object({
	vatNumber: z.string().max(32, __('VAT number must be at most 32 characters.', 'parcel2go-shipping')),
	eori: z
		.string()
		.trim()
		.max(20, __('EORI number must be at most 20 characters.', 'parcel2go-shipping'))
		.refine(
			(value) =>
				value === '' ||
				/^([gG][bB][0-9]{12}|[gG][bB][0-9]{15})$|^(?![gG][bB])([A-z]{2}.{7,18})$|^(GBUNREG)$/.test(value),
			__(
				'EORI number format is invalid. Must be GB followed by 12 or 15 digits, or 2 letters followed by 7-18 characters.',
				'parcel2go-shipping'
			)
		),
	vatStatus: z.enum(['individual', 'business-not-registered', 'business-registered']),
});

export const defaultSettingsOverridesSchema = z.object({
	defaultWeightKg: z
		.number()
		.refine(
			(value) => value === 0 || value > 0,
			__('Weight must be greater than 0.', 'parcel2go-shipping')
		),
	defaultTariffCode: z.string().max(10, __('Tariff code must be at most 10 characters.', 'parcel2go-shipping')),
	defaultCountryOfManufacture: z.string(),
});

export const pluginSettingsSchema = z.object({
	shipping: defaultShippingSchema,
	packages: z.array(packagePresetSchema),
	defaultPackageId: z.string(),
	tax: taxSettingsSchema,
	overrides: defaultSettingsOverridesSchema,
});

export type DefaultShippingInput = z.infer<typeof defaultShippingSchema>;
export type PackagePresetInput = z.infer<typeof packagePresetSchema>;
export type TaxSettingsInput = z.infer<typeof taxSettingsSchema>;
export type DefaultSettingsOverridesInput = z.infer<typeof defaultSettingsOverridesSchema>;
export type PluginSettingsInput = z.infer<typeof pluginSettingsSchema>;