import {z} from 'zod'

export type GetApiV1TripsArgs = {cursor?: (string | null) | undefined, limit?: (number | null) | undefined, last_updated_after?: (string | null) | undefined, load_custom_fields?: (boolean | null) | undefined};

export type GetApiV1TripsOptions = {baseUrl?: string | undefined, OAuth2?: string | undefined, fetch?: typeof fetch | undefined};

export const travelerType = z.enum(["EMPLOYEE", "GUEST"]);

export const money = z.object({amount: z.number().int(), currency: z.string().nullable().optional()});

export const optionString = z.object({option_id: z.string().nullable().optional(), option_label: z.string().nullable().optional()});

export const customField = z.object({key: z.string(), value: z.union([z.object({value_type: z.enum(["SINGLE_VALUE", "LIST"]), data_type: z.enum(["STRING", "DECIMAL", "BOOLEAN", "ENUM", "TIMESTAMP", "DATE", "MONEY", "OPTION_STRING"]), data: z.string().nullable().optional()}), z.object({value_type: z.enum(["SINGLE_VALUE", "LIST"]), data_type: z.enum(["STRING", "DECIMAL", "BOOLEAN", "ENUM", "TIMESTAMP", "DATE", "MONEY", "OPTION_STRING"]), data: z.number().nullable().optional()}), z.object({value_type: z.enum(["SINGLE_VALUE", "LIST"]), data_type: z.enum(["STRING", "DECIMAL", "BOOLEAN", "ENUM", "TIMESTAMP", "DATE", "MONEY", "OPTION_STRING"]), data: z.boolean().nullable().optional()}), z.object({value_type: z.enum(["SINGLE_VALUE", "LIST"]), data_type: z.enum(["STRING", "DECIMAL", "BOOLEAN", "ENUM", "TIMESTAMP", "DATE", "MONEY", "OPTION_STRING"]), data: z.string().nullable().optional()}), z.object({value_type: z.enum(["SINGLE_VALUE", "LIST"]), data_type: z.enum(["STRING", "DECIMAL", "BOOLEAN", "ENUM", "TIMESTAMP", "DATE", "MONEY", "OPTION_STRING"]), data: z.string().nullable().optional()}), z.object({value_type: z.enum(["SINGLE_VALUE", "LIST"]), data_type: z.enum(["STRING", "DECIMAL", "BOOLEAN", "ENUM", "TIMESTAMP", "DATE", "MONEY", "OPTION_STRING"]), data: z.string().nullable().optional()}), z.object({value_type: z.enum(["SINGLE_VALUE", "LIST"]), data_type: z.enum(["STRING", "DECIMAL", "BOOLEAN", "ENUM", "TIMESTAMP", "DATE", "MONEY", "OPTION_STRING"]), data: z.object({amount: z.number().int(), currency: z.string().nullable().optional()}).nullable().optional()}), z.object({value_type: z.enum(["SINGLE_VALUE", "LIST"]), data_type: z.enum(["STRING", "DECIMAL", "BOOLEAN", "ENUM", "TIMESTAMP", "DATE", "MONEY", "OPTION_STRING"]), data: z.object({option_id: z.string().nullable().optional(), option_label: z.string().nullable().optional()}).nullable().optional()}), z.object({value_type: z.enum(["SINGLE_VALUE", "LIST"]), data_type: z.enum(["STRING", "DECIMAL", "BOOLEAN", "ENUM", "TIMESTAMP", "DATE", "MONEY", "OPTION_STRING"]), data: z.array(z.string()).nullable().optional()}), z.object({value_type: z.enum(["SINGLE_VALUE", "LIST"]), data_type: z.enum(["STRING", "DECIMAL", "BOOLEAN", "ENUM", "TIMESTAMP", "DATE", "MONEY", "OPTION_STRING"]), data: z.array(z.number()).nullable().optional()}), z.object({value_type: z.enum(["SINGLE_VALUE", "LIST"]), data_type: z.enum(["STRING", "DECIMAL", "BOOLEAN", "ENUM", "TIMESTAMP", "DATE", "MONEY", "OPTION_STRING"]), data: z.array(z.boolean()).nullable().optional()}), z.object({value_type: z.enum(["SINGLE_VALUE", "LIST"]), data_type: z.enum(["STRING", "DECIMAL", "BOOLEAN", "ENUM", "TIMESTAMP", "DATE", "MONEY", "OPTION_STRING"]), data: z.array(z.string()).nullable().optional()}), z.object({value_type: z.enum(["SINGLE_VALUE", "LIST"]), data_type: z.enum(["STRING", "DECIMAL", "BOOLEAN", "ENUM", "TIMESTAMP", "DATE", "MONEY", "OPTION_STRING"]), data: z.array(z.string()).nullable().optional()}), z.object({value_type: z.enum(["SINGLE_VALUE", "LIST"]), data_type: z.enum(["STRING", "DECIMAL", "BOOLEAN", "ENUM", "TIMESTAMP", "DATE", "MONEY", "OPTION_STRING"]), data: z.array(z.string()).nullable().optional()}), z.object({value_type: z.enum(["SINGLE_VALUE", "LIST"]), data_type: z.enum(["STRING", "DECIMAL", "BOOLEAN", "ENUM", "TIMESTAMP", "DATE", "MONEY", "OPTION_STRING"]), data: z.array(money).nullable().optional()}), z.object({value_type: z.enum(["SINGLE_VALUE", "LIST"]), data_type: z.enum(["STRING", "DECIMAL", "BOOLEAN", "ENUM", "TIMESTAMP", "DATE", "MONEY", "OPTION_STRING"]), data: z.array(optionString).nullable().optional()})])});

export const trip = z.object({id: z.string(), created_at: z.string(), updated_at: z.string(), name: z.string().max(100).nullable().optional(), booker_user_id: z.string(), status: z.enum(["PENDING", "UPCOMING", "IN_PROGRESS", "COMPLETED", "CANCELED", "REFUNDED", "VOIDED", "DRAFT", "DELETED", "PROCESSING", "UNCONFIRMED", "AIRLINE_CONTROL", "PAYMENT_DECLINED", "SCHEDULE_CHANGE", "HOLD", "APPROVAL_REQUESTED", "APPROVAL_DENIED", "CANCELLATION_IN_PROGRESS"]), traveler: z.object({type: travelerType, name: z.object({first_name: z.string().optional(), middle_name: z.string().nullable().optional(), last_name: z.string().optional(), suffix: z.string().nullable().optional()}).nullable().optional(), guest_email: z.string().nullable().optional(), user_id: z.string().nullable().optional()}).nullable().optional(), version: z.number().int().gte(1), billable_at: z.string().nullable().optional(), starts_at: z.string().nullable().optional(), ends_at: z.string().nullable().optional(), trip_reference: z.string().nullable().optional(), custom_fields: z.array(customField).nullable().optional()});

export const pageTrip = z.object({next_cursor: z.string().nullable().optional(), items: z.array(trip)});

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
};

/**
 * List trips
 * 
 * GET /v1/trips
 */
export const getApiV1Trips = async (args: GetApiV1TripsArgs, options?: GetApiV1TripsOptions) => {
const {baseUrl = "https://api.brex.com", fetch: fetchFn = fetch, OAuth2} = options ?? {}

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

if (args.cursor != null) query.append("cursor", String(args.cursor))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.last_updated_after != null) query.append("last_updated_after", String(args.last_updated_after))
if (args.load_custom_fields != null) query.append("load_custom_fields", String(args.load_custom_fields))
if (OAuth2 !== undefined) headers.set('authorization', `Bearer ${OAuth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/trips${query.size > 0 ? `?${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(pageTrip, await res.json())
};