import {z} from 'zod'

export type GetApiV1CompanyMappingsSearchArgs = {query: string, product_type?: ('income' | 'employment' | 'deposit_switch' | 'pll') | undefined};

export type GetApiV1CompanyMappingsSearchOptions = {baseUrl?: string | undefined, ClientID?: string | undefined, AccessKey?: string | undefined, fetch?: typeof fetch | undefined};

export const companyMappingSearchResponse = z.object({company_mapping_id: z.string().max(64), name: z.string().max(128), domain: z.string().max(128).nullable(), logo_url: z.string().nullable().optional(), success_rate: z.enum(["low", "high", "unsupported", "null"]).nullable(), confidence_level: z.string(), sso: z.object({name: z.string().max(128)}).nullable().optional()});

export const getApiV1CompanyMappingsSearchResponse = z.array(companyMappingSearchResponse);

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
};

/**
 * Search companies with autocomplete
 * 
 * GET /v1/company-mappings-search/
 */
export const getApiV1CompanyMappingsSearch = async (args: GetApiV1CompanyMappingsSearchArgs, options?: GetApiV1CompanyMappingsSearchOptions) => {
const {baseUrl = "https://prod.truv.com", fetch: fetchFn = fetch, ClientID, AccessKey} = options ?? {}

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

if (args.query != null) query.append("query", String(args.query))
if (args.product_type != null) query.append("product_type", String(args.product_type))
if (ClientID !== undefined) headers.set("X-Access-Client-Id", ClientID)
if (AccessKey !== undefined) headers.set("X-Access-Secret", AccessKey)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/company-mappings-search/${query.size > 0 ? `?${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(getApiV1CompanyMappingsSearchResponse, await res.json())
};