import {z} from 'zod'

export type CreateApiV2TimeOffArgs = {body: {user_id: number, company_id: number, from_date: string, to_date: string, partial: boolean, partial_from?: (string | null) | undefined, partial_to?: (string | null) | undefined, comments?: string | undefined, status: number, category: string, hours?: Array<{date: string, num_hours: number}> | undefined, status_action_user_id?: (number | null) | undefined, status_action_message?: string | undefined}};

export type CreateApiV2TimeOffOptions = {baseUrl?: string | undefined, OAuth2?: string | undefined, fetch?: typeof fetch | undefined};

export const createApiV2TimeOffResponse = z.object({id: z.number().int(), user_id: z.number().int(), company_id: z.number().int(), from_date: z.string(), to_date: z.string(), partial: z.boolean(), partial_from: z.string().nullable(), partial_to: z.string().nullable(), comments: z.string(), status: z.number().int(), status_action_user_id: z.number().int().nullable(), status_action_message: z.string(), category: z.string(), created: z.string(), amount_of_hours: z.number(), hours: z.array(z.object({date: z.string(), hours: z.number()}))});

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
};

/**
 * Create Time Off
 * 
 * POST /v2/time_off
 * 
 * Also accepts auth: cookieAuth
 */
export const createApiV2TimeOff = async (args: CreateApiV2TimeOffArgs, options?: CreateApiV2TimeOffOptions) => {
const {baseUrl = "https://api.7shifts.com", fetch: fetchFn = fetch, OAuth2} = options ?? {}

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

if (OAuth2 !== undefined) headers.set('authorization', `Bearer ${OAuth2}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v2/time_off${query.size > 0 ? `?${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(createApiV2TimeOffResponse, await res.json())
};