import {z} from 'zod'

export type CreateApiV1CompanyRankingsArgs = {body: {apiKey: string, rankings: {list: 'fortune-500-usa' | 'forbes-global-2000', year?: (number | null) | undefined, rankRange: {low: number, high: number}}}};

export type CreateApiV1CompanyRankingsOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const createApiV1CompanyRankingsResponse = z.object({output: z.object({list: z.enum(["fortune-500-usa", "forbes-global-2000"]), year: z.number().int(), companies: z.array(z.object({name: z.string().min(1), rank: z.number().int().gte(1), domain: z.string().nullable().optional(), ticker: z.string().nullable().optional(), headquarters: z.string().nullable().optional(), countryCode: z.string().nullable().optional(), revenueUsd: z.number().nullable().optional(), profitsUsd: z.number().nullable().optional(), marketCapUsd: z.number().nullable().optional(), employeeCount: z.number().nullable().optional()}))}), chargeInfo: z.union([z.object({method: z.literal("charged-now"), creditsCharged: z.number(), lowCreditAlert: z.object({getMoreCreditsUrl: z.string(), message: z.string(), availableCredits: z.number()}).nullable().optional()}), z.object({method: z.literal("charging-later"), message: z.string(), lowCreditAlert: z.object({getMoreCreditsUrl: z.string(), message: z.string(), availableCredits: z.number()}).nullable().optional()}), z.object({method: z.literal("charged-for-async-process"), creditsCharged: z.number(), message: z.string(), lowCreditAlert: z.object({getMoreCreditsUrl: z.string(), message: z.string(), availableCredits: z.number()}).nullable().optional()}), z.object({method: z.literal("free"), message: z.string(), lowCreditAlert: z.object({getMoreCreditsUrl: z.string(), message: z.string(), availableCredits: z.number()}).nullable().optional()}), z.object({method: z.literal("credits-refunded"), creditsRefunded: z.number(), message: z.string(), lowCreditAlert: z.object({getMoreCreditsUrl: z.string(), message: z.string(), availableCredits: z.number()}).nullable().optional()})]), warnings: z.array(z.object({field: z.string(), message: z.string()})).nullable().optional(), advice: z.array(z.string()).nullable().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
};

/**
 * Download a ranked company list
 * 
 * POST /v1/company-rankings
 */
export const createApiV1CompanyRankings = async (args: CreateApiV1CompanyRankingsArgs, options?: CreateApiV1CompanyRankingsOptions) => {
const {baseUrl = "https://api.fiber.ai", fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/v1/company-rankings${query.size > 0 ? `?${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(createApiV1CompanyRankingsResponse, await res.json())
};