import {z} from 'zod'

export type PlatformConnectRequest = {legal_entity_id: string, agency_account_id: string};

export type CreateApiAccountsConnectArgs = {body: PlatformConnectRequest};

export type CreateApiAccountsConnectOptions = {baseUrl: string, OAuth2PasswordBearer?: string | undefined, fetch?: typeof fetch | undefined};

export const platformConnectionStatus = z.enum(["pending", "authenticating", "registering", "connected", "disconnected", "canceled"]);

export const appApiPlatformAccountsModelsPlatformAgencyAccount = z.object({id: z.string(), agency_id: z.string(), region: z.string(), name: z.string()});

export const platformAccountStatus = z.enum(["active", "exception", "closed"]);

export const platformAccountHistoryItem = z.object({period_start_date: z.string(), period_end_date: z.string(), payment_date: z.string(), filing_date: z.string(), payment_amount: z.number().int(), amount_due: z.number().int(), amount_applied: z.number().int(), raw_data: z.object({})});

export const platformMailClassification = z.enum(["penalty", "underpayment", "tax_rate_change", "other"]);

export const platformAccountNotice = z.object({mail_classification: platformMailClassification, received_on: z.string(), description: z.string(), summary: z.string(), signed_url: z.string()});

export const platformAccountLogin = z.object({login_url: z.string(), user_name: z.string(), two_factor_enabled: z.boolean()});

export const platformAccount = z.object({id: z.string(), agency_account: appApiPlatformAccountsModelsPlatformAgencyAccount, status: platformAccountStatus, id_number: z.string(), has_tpa: z.boolean(), tax_rate_percent: z.number().nullable().optional(), reporting_schedule: z.string().nullable().optional(), balance: z.number().int().nullable().optional(), history: z.array(platformAccountHistoryItem).nullable().optional(), notices: z.array(platformAccountNotice).nullable().optional(), account_login: platformAccountLogin.nullable().optional()});

export const platformConnection = z.object({id: z.string(), status: platformConnectionStatus, account: platformAccount.nullable()});

export const platformConnectSession = z.object({connect_url: z.string(), connection: platformConnection});

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
};

/**
 * Connect Account
 * 
 * POST /accounts/connect
 * 
 * Also accepts auth: OAuth2PasswordBearer
 */
export const createApiAccountsConnect = async (args: CreateApiAccountsConnectArgs, options: CreateApiAccountsConnectOptions) => {
const {baseUrl, fetch: fetchFn = fetch, OAuth2PasswordBearer} = options ?? {}

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

if (OAuth2PasswordBearer !== undefined) headers.set('authorization', `Bearer ${OAuth2PasswordBearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/accounts/connect${query.size > 0 ? `?${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(platformConnectSession, await res.json())
};