import {z} from 'zod'

export type CustomSipHeader = {name: string, value: string};

export type SipHeader = {name: 'User-to-User', value: string};

export type SoundModifications = {pitch?: number | undefined, semitone?: number | undefined, octaves?: number | undefined, track?: string | undefined};

export type TransferCallRequest = {to: string, from?: string | undefined, diversion?: string | undefined, from_display_name?: string | undefined, privacy?: ('id' | 'none') | undefined, audio_url?: string | undefined, send_digits_on_answer?: string | undefined, early_media?: boolean | undefined, media_name?: string | undefined, timeout_secs?: number | undefined, time_limit_secs?: number | undefined, park_after_unbridge?: string | undefined, answering_machine_detection?: ('premium' | 'premium_ios_call_screening_detection' | 'detect' | 'detect_beep' | 'detect_words' | 'greeting_end' | 'disabled') | undefined, answering_machine_detection_config?: ({total_analysis_time_millis?: number | undefined, beep_detection_profile?: ('both' | 'freq_only') | undefined, beep_min_frequency_hz?: number | undefined, beep_max_frequency_hz?: number | undefined, beep_min_tone_duration_millis?: number | undefined, beep_spectral_confirmation?: boolean | undefined, beep_spectral_window_millis?: number | undefined, beep_spectral_min_purity?: number | undefined, beep_spectral_reject_fax_cng?: boolean | undefined, after_greeting_silence_millis?: number | undefined, between_words_silence_millis?: number | undefined, greeting_duration_millis?: number | undefined, initial_silence_millis?: number | undefined, maximum_number_of_words?: number | undefined, maximum_word_length_millis?: number | undefined, silence_threshold?: number | undefined, greeting_total_analysis_time_millis?: number | undefined, greeting_silence_duration_millis?: number | undefined, prompt_end_timeout_millis?: number | undefined}) | undefined, custom_headers?: Array<CustomSipHeader> | undefined, client_state?: string | undefined, target_leg_client_state?: string | undefined, command_id?: string | undefined, media_encryption?: ('disabled' | 'SRTP' | 'DTLS') | undefined, sip_auth_username?: string | undefined, sip_auth_password?: string | undefined, sip_headers?: Array<SipHeader> | undefined, sip_transport_protocol?: ('UDP' | 'TCP' | 'TLS') | undefined, sound_modifications?: SoundModifications | undefined, webhook_url?: string | undefined, webhook_url_method?: ('POST' | 'GET') | undefined, mute_dtmf?: ('none' | 'both' | 'self' | 'opposite') | undefined, record?: 'record-from-answer' | undefined, record_channels?: ('single' | 'dual') | undefined, record_format?: ('wav' | 'mp3') | undefined, record_max_length?: number | undefined, record_timeout_secs?: number | undefined, record_track?: ('both' | 'inbound' | 'outbound') | undefined, record_trim?: 'trim-silence' | undefined, record_custom_file_name?: string | undefined, sip_region?: ('US' | 'Europe' | 'Canada' | 'Australia' | 'Middle East') | undefined, preferred_codecs?: string | undefined, webhook_urls?: {[key: string]: Array<string>} | undefined, webhook_urls_method?: ('POST' | 'GET') | undefined, webhook_retries_policies?: ({[key: string]: {retries_ms?: Array<number> | undefined}}) | undefined, route_to_mobile?: boolean | undefined};

export type CreateApiCallsCallControlIdActionsTransferArgs = {call_control_id: string, body: TransferCallRequest};

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

export const callControlCommandResult = z.object({result: z.string().optional()});

export const createApiCallsCallControlIdActionsTransferResponse = z.object({data: callControlCommandResult.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
};

/**
 * Transfer call
 * 
 * POST /calls/{call_control_id}/actions/transfer
 */
export const createApiCallsCallControlIdActionsTransfer = async (args: CreateApiCallsCallControlIdActionsTransferArgs, options?: CreateApiCallsCallControlIdActionsTransferOptions) => {
const {baseUrl = "https://api.telnyx.com/v2", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/calls/${encodeURIComponent(String(args.call_control_id))}/actions/transfer${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(createApiCallsCallControlIdActionsTransferResponse, await res.json())
};