import {z} from 'zod'

export type GetApiEmailsEmailIdArgs = {emailId: string, expand?: string | undefined};

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

export const delivery = z.object({id: z.string(), status: z.string(), details: z.string().optional(), output: z.string().optional(), code: z.number().int().optional(), sentWithSsl: z.boolean().optional(), timestamp: z.number(), timestampIso: z.string(), classification: z.enum(["invalid_recipient", "mailbox_full", "message_too_large", "spam_block", "policy_violation", "no_mailbox", "not_accepting_mail", "temporarily_unavailable", "protocol_error", "tls_required", "connection_error", "dns_error", "unclassified"]).nullable().optional(), classificationCode: z.number().int().nullable().optional(), smtpEnhancedCode: z.string().nullable().optional(), remoteHost: z.string().nullable().optional()});

export const attachmentDetails = z.object({filename: z.string(), contentType: z.string(), size: z.number().int(), hash: z.string(), data: z.string()});

export const apiMeta = z.object({requestId: z.string()});

export const emailDetails = z.object({success: z.literal(true), data: z.object({id: z.string(), scope: z.enum(["outgoing", "incoming"]), to: z.string(), from: z.string(), subject: z.string(), messageId: z.string().optional(), status: z.enum(["pending", "sent", "softfail", "hardfail", "bounced", "held"]), tag: z.string().optional(), timestamp: z.number(), timestampIso: z.string(), spam: z.boolean().optional(), spamScore: z.number().optional(), htmlBody: z.string().optional(), plainBody: z.string().optional(), headers: z.record(z.string(), z.string()).optional(), deliveries: z.array(delivery).optional(), activity: z.object({opens: z.array(z.object({ipAddress: z.string().optional(), userAgent: z.string().optional(), timestamp: z.number().optional(), timestampIso: z.string().optional()})).optional(), clicks: z.array(z.object({url: z.string().optional(), ipAddress: z.string().optional(), userAgent: z.string().optional(), timestamp: z.number().optional(), timestampIso: z.string().optional()})).optional()}).optional(), attachments: z.array(attachmentDetails).optional(), rawMessage: z.string().optional()}), meta: apiMeta});

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
};

/**
 * Get email details
 * 
 * GET /emails/{emailId}
 */
export const getApiEmailsEmailId = async (args: GetApiEmailsEmailIdArgs, options?: GetApiEmailsEmailIdOptions) => {
const {baseUrl = "https://api.arkhq.io/v1", fetch: fetchFn = fetch, apiKey} = options ?? {}

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

if (args.expand != null) query.append("expand", String(args.expand))
if (apiKey !== undefined) headers.set('authorization', `Bearer ${apiKey}`)

const url = `${baseUrl.replace(/\/+$/, '')}/emails/${encodeURIComponent(String(args.emailId))}${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(emailDetails, await res.json())
};