import {z} from 'zod'

export type GetApiSubscriptionPlansSubscriptionPlanIdArgs = {'Finix-Version'?: string | undefined};

export type GetApiSubscriptionPlansSubscriptionPlanIdOptions = {baseUrl?: string | undefined, BasicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const id = z.string().min(1);

export const createdAt = z.string();

export const updatedAt = z.string();

export const applicationId = z.string().min(1);

export const billingInterval = z.enum(["BIMONTHLY", "BIWEEKLY", "BIYEARLY", "DAILY", "MONTHLY", "QUARTERLY", "SEMIYEARLY", "TRIYEARLY", "WEEKLY", "YEARLY"]);

export const nickname = z.string().nullable();

export const amount = z.number().int();

export const defaultTotalBillingIntervals = z.number().int().nullable();

export const tags = z.record(z.string(), z.unknown()).nullable();

export const self = z.object({href: z.string().min(1).optional()});

export const subscriptionPlan = z.object({id: id.optional(), created_at: createdAt.optional(), updated_at: updatedAt.optional(), application_id: applicationId.optional(), linked_to: z.string().optional(), linked_type: z.literal("MERCHANT").optional(), billing_interval: billingInterval.optional(), nickname: nickname.optional(), plan_name: z.string().optional(), description: z.string().optional(), amount: amount.optional(), currency: z.enum(["USD", "CAD"]).optional(), default_total_billing_intervals: defaultTotalBillingIntervals.optional(), duration_type: z.enum(["FIXED_TERM", "EVERGREEN"]).nullable().optional(), billing_defaults: z.object({collection_method: z.literal("BILL_AUTOMATICALLY").optional(), send_invoice: z.boolean().optional(), send_receipt: z.boolean().optional()}).optional(), trial_defaults: z.object({interval_type: z.enum(["DAY", "WEEK", "MONTH", "YEAR"]).optional(), interval_count: z.number().int().optional()}).nullable().optional(), discount_phase_defaults: z.object({amount: amount.optional(), billing_interval_count: z.number().int().optional()}).nullable().optional(), is_usage_based: z.boolean().nullable().optional(), state: z.enum(["ACTIVE", "INACTIVE"]).optional(), billing_items: z.array(z.object({})).nullable().optional(), tags: tags.optional(), _links: z.object({self: self.optional()}).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
};

/**
 * Fetch a Subscription Plan
 * 
 * GET /subscription_plans/{subscription_plan_id}
 */
export const getApiSubscriptionPlansSubscriptionPlanId = async (args: GetApiSubscriptionPlansSubscriptionPlanIdArgs, options?: GetApiSubscriptionPlansSubscriptionPlanIdOptions) => {
const {baseUrl = "https://finix.sandbox-payments-api.com", fetch: fetchFn = fetch, BasicAuth} = options ?? {}

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

if (args['Finix-Version'] != null) headers.set("Finix-Version", String(args['Finix-Version']))
if (BasicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${BasicAuth.username}:${BasicAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/subscription_plans/${encodeURIComponent(String(args.subscription_plan_id))}${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

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

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