import {z} from 'zod'

export type CreateApiPlansArgs = {body: {name: string, description?: string | undefined, merchant_reference?: string | undefined, base_amount: {currency: string, value: number}, frequency: {type: 'DAY' | 'WEEK' | 'MONTH' | 'YEAR', value: number}, country_prices?: (Array<{country?: string | undefined, amount?: ({currency?: string | undefined, value?: number | undefined}) | undefined}>) | undefined, allowed_payment_methods?: Array<string> | undefined, metadata?: (Array<{key?: string | undefined, value?: string | undefined}>) | undefined, phases?: (Array<{order: number, name: string, type: 'TRIAL' | 'REGULAR', duration?: ({type?: ('DAY' | 'WEEK' | 'MONTH' | 'YEAR') | undefined, value?: number | undefined}) | undefined, frequency?: ({type?: ('DAY' | 'WEEK' | 'MONTH' | 'YEAR') | undefined, value?: number | undefined}) | undefined, amount?: ({currency?: string | undefined, value?: number | undefined}) | undefined, country_prices?: (Array<{country?: string | undefined, amount?: ({currency?: string | undefined, value?: number | undefined}) | undefined}>) | undefined}>) | undefined}};

export type CreateApiPlansOptions = {baseUrl?: string | undefined, publicApiKey?: string | undefined, privateSecretKey?: string | undefined, fetch?: typeof fetch | undefined};

export const createApiPlansResponse = z.object({id: z.string().optional(), account_id: z.string().optional(), name: z.string().optional(), description: z.string().optional(), merchant_reference: z.string().optional(), status: z.string().optional(), base_amount: z.object({currency: z.string().optional(), value: z.number().optional()}).optional(), frequency: z.object({type: z.string().optional(), value: z.number().int().optional()}).optional(), country_prices: z.array(z.object({country: z.string().optional(), amount: z.object({currency: z.string().optional(), value: z.number().optional()}).optional()})).optional(), allowed_payment_methods: z.array(z.string()).optional(), metadata: z.array(z.object({})).optional(), phases: z.array(z.object({})).optional(), created_at: z.string().optional(), updated_at: z.string().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 /plans
 */
export const createApiPlans = async (args: CreateApiPlansArgs, options?: CreateApiPlansOptions) => {
const {baseUrl = "https://api-sandbox.y.uno/v1", fetch: fetchFn = fetch, publicApiKey, privateSecretKey} = options ?? {}

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

if (publicApiKey !== undefined) headers.set("PUBLIC-API-KEY", publicApiKey)
if (privateSecretKey !== undefined) headers.set("PRIVATE-SECRET-KEY", privateSecretKey)

const url = `${baseUrl.replace(/\/+$/, '')}/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(createApiPlansResponse, await res.json())
};