import {z} from 'zod'

export type GetApiRestJobsOptions = {baseUrl?: string | undefined, oauthClientCredentialsToken?: string | undefined, fetch?: typeof fetch | undefined};

export const amount = z.number().int().gte(0);

export const currency = z.string();

export const jobAttributes = z.object({external_identifiers: z.record(z.string(), z.string()).optional(), first_name: z.string().optional(), last_name: z.string().optional(), activation_status: z.enum(["DEACTIVATED", "DEACTIVATION_PENDING", "ACTIVATION_REQUIRED", "ACTIVATION_UNDER_REVIEW", "ACTIVATED"]), wage_rate: z.object({amount: amount, currency: currency, frequency: z.enum(["HOURLY", "WEEKLY", "BIWEEKLY", "TWICE_MONTHLY", "MONTHLY", "ANNUALLY"])}), title: z.string().nullable().optional(), department: z.string().nullable().optional(), location: z.string().optional(), direct_deposit_status: z.enum(["SETUP_REQUIRED", "SETUP_PENDING", "SETUP_COMPLETE"])});

export const jobLink = z.string();

export const jobLinks = z.object({self: jobLink});

export const personIdentifier = z.object({type: z.literal("people"), id: z.string()});

export const personRelationship = z.object({data: personIdentifier});

export const organizationIdentifier = z.object({type: z.literal("organizations"), id: z.string()});

export const organizationRelationship = z.object({data: organizationIdentifier});

export const accountIdentifier = z.object({type: z.literal("accounts"), id: z.string()});

export const accountRelationship = z.object({data: accountIdentifier});

export const jobRelationships = z.object({person: personRelationship, organization: organizationRelationship, direct_deposit_default_depository: accountRelationship.optional(), direct_deposit_default_card: accountRelationship.optional()});

export const jobResource = z.object({type: z.literal("jobs"), id: z.string(), attributes: jobAttributes, links: jobLinks, relationships: jobRelationships});

export const jobsData = z.object({data: z.array(jobResource)});

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 a list of job objects
 * 
 * GET /rest/jobs
 * 
 * Also accepts auth: oauth_user_token
 */
export const getApiRestJobs = async (options?: GetApiRestJobsOptions) => {
const {baseUrl = "https://api.dailypay.com", fetch: fetchFn = fetch, oauthClientCredentialsToken} = options ?? {}

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

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

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