import {z} from 'zod'

export type EligibilityInput = {memberId: string, firstName: string, lastName: string, dateOfBirth: string, serviceStartDate: string, serviceEndDate: string, coverageTypes: Array<string>, payerId: string, providerFirstName: string, providerLastName: string, providerNPI: string};

export type GraphQLRequest = {query: string, variables: {input: EligibilityInput}};

export type CreateApiOihubDentalEligibilityPreserviceV1Args = {environment: string, providerTaxId: string, body: GraphQLRequest};

export type CreateApiOihubDentalEligibilityPreserviceV1Options = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const codeDescription = z.object({code: z.string().optional(), description: z.string().optional()});

export const member = z.object({memberId: z.string().optional(), firstName: z.string().optional(), middleName: z.string().optional(), lastName: z.string().optional(), suffix: z.string().optional(), dateOfBirth: z.string().optional(), gender: z.string().optional(), relationshipCode: z.string().optional(), dependentSequenceNumber: z.string().optional(), individualRelationship: codeDescription.optional(), relationshipType: codeDescription.optional()});

export const address = z.object({type: z.string().optional(), street1: z.string().optional(), street2: z.string().optional(), city: z.string().optional(), state: z.string().optional(), country: z.string().optional(), zip: z.string().optional(), zip4: z.string().optional()});

export const contact = z.object({addresses: z.array(address).optional()});

export const insuranceInfo = z.object({policyNumber: z.string().optional(), eligibilityStartDate: z.string().optional(), eligibilityEndDate: z.string().optional(), planStartDate: z.string().optional(), planEndDate: z.string().optional(), policyStatus: z.string().optional(), planTypeDescription: z.string().optional(), groupName: z.string().optional(), address: address.optional(), stateOfIssueCode: z.string().optional(), productType: z.string().optional(), productCode: z.string().optional(), payerId: z.string().optional(), lineOfBusinessCode: z.string().optional(), governmentProgramCode: z.string().optional(), coverageType: z.string().optional(), insuranceTypeCode: z.string().optional(), insuranceType: z.string().optional()});

export const associatedIds = z.object({alternateId: z.string().optional(), subscriberId: z.string().optional(), mbiNumber: z.string().optional(), healthInsuranceExchangeId: z.string().optional()});

export const planAmount = z.object({networkStatus: z.string().optional(), planAmount: z.number().optional(), remainingAmount: z.number().optional()});

export const planLevel = z.object({level: z.string().optional(), family: z.array(planAmount).optional(), individual: z.array(planAmount).optional()});

export const delegatedInfo = z.object({entity: z.string().optional(), contact: z.object({phone: z.string().optional()}).optional(), addresses: z.array(address).optional()});

export const eligibilityInfo = z.object({trnId: z.string().nullable().optional(), member: member.optional(), contact: contact.optional(), insuranceInfo: insuranceInfo.optional(), associatedIds: associatedIds.optional(), planLevels: z.array(planLevel).optional(), delegatedInfo: z.array(delegatedInfo).optional()});

export const eligibilityRecord = z.object({eligibilityInfo: eligibilityInfo.optional()});

export const eligibilityResponse = z.object({data: z.object({checkEligibility: z.object({eligibility: z.array(eligibilityRecord).optional()}).optional()}).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
};

/**
 * Pre-Care Eligibility Check
 * 
 * POST /oihub/dental/eligibility/preservice/v1
 */
export const createApiOihubDentalEligibilityPreserviceV1 = async (args: CreateApiOihubDentalEligibilityPreserviceV1Args, options?: CreateApiOihubDentalEligibilityPreserviceV1Options) => {
const {baseUrl = "https://sandbox-apigw.optum.com", 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 (args.environment != null) headers.set("environment", String(args.environment))
if (args.providerTaxId != null) headers.set("providerTaxId", String(args.providerTaxId))
if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/oihub/dental/eligibility/preservice/v1${query.size > 0 ? `?${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(eligibilityResponse, await res.json())
};