import {z} from 'zod'

export type CurrencyCode = string;

export type Money = {currency_code: CurrencyCode, value: string};

export type PricingTier = {starting_quantity: string, ending_quantity?: string | undefined, amount: Money};

export type PricingTierList = Array<PricingTier>;

export type DateTime = unknown;

export type PricingScheme = {version?: number | undefined, fixed_price?: Money | undefined, pricing_model?: ('VOLUME' | 'TIERED') | undefined, tiers?: PricingTierList | undefined, create_time?: DateTime | undefined, update_time?: DateTime | undefined};

export type Frequency = {interval_unit: 'DAY' | 'WEEK' | 'MONTH' | 'YEAR', interval_count?: number | undefined};

export type BillingCycle = {pricing_scheme?: PricingScheme | undefined, frequency: Frequency, tenure_type: 'REGULAR' | 'TRIAL', sequence: number, total_cycles?: number | undefined};

export type BillingCycleList = Array<BillingCycle>;

export type PaymentPreferences = {auto_bill_outstanding?: boolean | undefined, setup_fee?: Money | undefined, setup_fee_failure_action?: ('CONTINUE' | 'CANCEL') | undefined, payment_failure_threshold?: number | undefined};

export type MerchantPreferences = {return_url?: string | undefined, cancel_url?: string | undefined};

export type Percentage = unknown;

export type Taxes = {percentage: Percentage, inclusive?: boolean | undefined};

export type PlanRequestPOST = {product_id: string, name: string, status?: ('CREATED' | 'INACTIVE' | 'ACTIVE') | undefined, description?: string | undefined, billing_cycles: BillingCycleList, payment_preferences: PaymentPreferences, merchant_preferences?: MerchantPreferences | undefined, taxes?: Taxes | undefined, quantity_supported?: boolean | undefined};

export type CreateApiV1BillingPlansArgs = {'Content-Type': string, Prefer?: string | undefined, 'PayPal-Request-Id'?: string | undefined, body: PlanRequestPOST};

export type CreateApiV1BillingPlansOptions = {baseUrl?: string | undefined, Oauth2?: string | undefined, fetch?: typeof fetch | undefined};

export const currencyCode = z.string().min(3).max(3);

export const money = z.object({currency_code: currencyCode, value: z.string().max(32)});

export const pricingTier = z.object({starting_quantity: z.string().min(1).max(32), ending_quantity: z.string().min(1).max(32).optional(), amount: money});

export const pricingTierList = z.array(pricingTier);

export const dateTime = z.string().min(20).max(64);

export const pricingScheme = z.object({version: z.number().int().gte(0).lte(999).optional(), fixed_price: money.optional(), pricing_model: z.union([z.literal("VOLUME").min(1).max(24), z.literal("TIERED").min(1).max(24)]).optional(), tiers: pricingTierList.optional(), create_time: dateTime.optional(), update_time: dateTime.optional()});

export const frequency = z.object({interval_unit: z.union([z.literal("DAY").min(1).max(24), z.literal("WEEK").min(1).max(24), z.literal("MONTH").min(1).max(24), z.literal("YEAR").min(1).max(24)]), interval_count: z.number().int().gte(1).lte(365).optional()});

export const billingCycle = z.object({pricing_scheme: pricingScheme.optional(), frequency: frequency, tenure_type: z.union([z.literal("REGULAR").min(1).max(24), z.literal("TRIAL").min(1).max(24)]), sequence: z.number().int().gte(1).lte(99), total_cycles: z.number().int().gte(0).lte(999).optional()});

export const billingCycleList = z.array(billingCycle);

export const paymentPreferences = z.object({auto_bill_outstanding: z.boolean().optional(), setup_fee: money.optional(), setup_fee_failure_action: z.union([z.literal("CONTINUE").min(1).max(24), z.literal("CANCEL").min(1).max(24)]).optional(), payment_failure_threshold: z.number().int().gte(0).lte(999).optional()});

export const merchantPreferences = z.object({return_url: z.string().min(10).max(4000).optional(), cancel_url: z.string().min(10).max(4000).optional()});

export const percentage = z.string();

export const taxes = z.object({percentage: percentage, inclusive: z.boolean().optional()});

export const linkDescription = z.object({href: z.string(), rel: z.string(), method: z.enum(["GET", "POST", "PUT", "DELETE", "HEAD", "CONNECT", "OPTIONS", "PATCH"]).optional()});

export const linkDescriptionList = z.array(linkDescription);

export const plan = z.object({id: z.string().min(26).max(26).optional(), product_id: z.string().min(22).max(22).optional(), name: z.string().min(1).max(127).optional(), status: z.union([z.literal("CREATED").min(1).max(24), z.literal("INACTIVE").min(1).max(24), z.literal("ACTIVE").min(1).max(24)]).optional(), description: z.string().min(1).max(127).optional(), billing_cycles: billingCycleList.optional(), payment_preferences: paymentPreferences.optional(), merchant_preferences: merchantPreferences.optional(), taxes: taxes.optional(), quantity_supported: z.boolean().optional(), create_time: dateTime.optional(), update_time: dateTime.optional(), links: linkDescriptionList.optional()});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Create plan
 * 
 * POST /v1/billing/plans
 */
export const createApiV1BillingPlans = async (args: CreateApiV1BillingPlansArgs, options?: CreateApiV1BillingPlansOptions) => {
const {baseUrl = "https://api-m.sandbox.paypal.com", fetch: fetchFn = fetch, Oauth2} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('content-type', "application/json")
headers.set('accept', "application/json")

if (args['Content-Type'] != null) headers.set("Content-Type", String(args['Content-Type']))
if (args.Prefer != null) headers.set("Prefer", String(args.Prefer))
if (args['PayPal-Request-Id'] != null) headers.set("PayPal-Request-Id", String(args['PayPal-Request-Id']))
if (Oauth2 !== undefined) headers.set('authorization', `Bearer ${Oauth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/billing/plans${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(plan, await res.json())
};