import {z} from 'zod'

export type GetApiEmailIntelligenceV1ProcessArgs = {email?: string | undefined, q?: string | undefined, response_fields?: string | undefined, response_fields_omit?: string | undefined, pretty?: boolean | undefined};

export type GetApiEmailIntelligenceV1ProcessOptions = {baseUrl?: string | undefined, BearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const emailRecord = z.object({email: z.string().optional(), did_you_mean: z.string().nullable().optional(), parts: z.object({local: z.string().nullable().optional(), username: z.string().nullable().optional(), tag: z.string().nullable().optional(), domain: z.string().nullable().optional()}).optional(), tld: z.object({name: z.string().nullable().optional(), country: z.object({name: z.string().nullable().optional(), emoji: z.string().nullable().optional()}).optional()}).optional(), domain: z.object({provider: z.object({name: z.string().nullable().optional(), type: z.enum(["mailbox", "gateway", "forwarding", "disposable", "null"]).nullable().optional(), url: z.string().nullable().optional()}).optional(), category: z.enum(["disposable", "forwarding", "free", "education", "government", "custom", "no_mail", "null"]).nullable().optional(), mx: z.array(z.object({exchange: z.string().optional(), priority: z.number().int().optional()})).optional(), registration: z.object({registered_on: z.string().nullable().optional(), updated_on: z.string().nullable().optional(), transferred_on: z.string().nullable().optional(), expires_on: z.string().nullable().optional(), age_days: z.number().int().nullable().optional()}).optional(), authentication: z.object({spf: z.object({present: z.boolean().optional(), policy: z.enum(["strict", "softfail", "neutral", "allow_all", "null"]).nullable().optional(), record: z.string().nullable().optional()}).optional(), dmarc: z.object({present: z.boolean().optional(), policy: z.enum(["none", "quarantine", "reject", "null"]).nullable().optional(), subdomain_policy: z.enum(["none", "quarantine", "reject", "null"]).nullable().optional(), percentage: z.number().int().nullable().optional(), record: z.string().nullable().optional()}).optional()}).optional()}).optional(), gravatar: z.object({exists: z.boolean().optional(), avatar_url: z.string().nullable().optional(), profile_url: z.string().nullable().optional()}).optional(), attributes: z.object({is_valid_syntax: z.boolean().optional(), is_free: z.boolean().optional(), is_disposable: z.boolean().optional(), is_forwarder: z.boolean().optional(), is_likely_role_based: z.boolean().optional(), has_plus_addressing: z.boolean().optional()}).optional()});

export const resultMeta = z.object({total: z.number().int(), request_id: z.string(), duration: z.number().int()});

export const emailProcessResponse = z.object({data: z.object({objects: z.array(emailRecord), meta: resultMeta.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
};

/**
 * Analyze an email address
 * 
 * GET /email-intelligence/v1/process
 * 
 * Also accepts auth: KeyQuery
 */
export const getApiEmailIntelligenceV1Process = async (args: GetApiEmailIntelligenceV1ProcessArgs, options?: GetApiEmailIntelligenceV1ProcessOptions) => {
const {baseUrl = "https://api.restcountries.com", fetch: fetchFn = fetch, BearerAuth} = options ?? {}

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

if (args.email != null) query.append("email", String(args.email))
if (args.q != null) query.append("q", String(args.q))
if (args.response_fields != null) query.append("response_fields", String(args.response_fields))
if (args.response_fields_omit != null) query.append("response_fields_omit", String(args.response_fields_omit))
if (args.pretty != null) query.append("pretty", String(args.pretty))
if (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)

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