import {z} from 'zod'

export type CreateApiAssessmentApiV2QuestionnaireArgs = {body: {assessment_ids: Array<string>}};

export type CreateApiAssessmentApiV2QuestionnaireOptions = {baseUrl?: string | undefined, apiKeyAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const createApiAssessmentApiV2QuestionnaireResponse = z.object({data: z.record(z.string(), z.object({assess_data: z.array(z.object({question: z.string().optional(), answer: z.string().nullable().optional(), options: z.array(z.string()).nullable().optional(), component_code: z.enum(["P-QNA", "P-HEAD"]).optional()})).optional(), workflow_name: z.string().optional(), workflow_id: z.number().int().nullable().optional(), created_at: z.string().nullable().optional(), practitioner: z.object({oid: z.string().optional(), fn: z.string().optional(), mn: z.string().nullable().optional(), ln: z.string().optional(), fln: z.string().optional(), gender: z.string().nullable().optional(), dob: z.string().nullable().optional()}).optional(), patient: z.object({age: z.number().int().nullable().optional(), gender: z.string().nullable().optional()}).optional(), custom_vital: z.unknown(), custom_vital_name: z.string().nullable().optional(), custom_vital_id: z.string().nullable().optional(), score_interpretation: z.object({}).nullable().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
};

/**
 * Get Questionnaire Data (V2)
 * 
 * POST /assessment/api/v2/questionnaire/
 */
export const createApiAssessmentApiV2Questionnaire = async (args: CreateApiAssessmentApiV2QuestionnaireArgs, options?: CreateApiAssessmentApiV2QuestionnaireOptions) => {
const {baseUrl = "https://api.eka.care", fetch: fetchFn = fetch, apiKeyAuth} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/assessment/api/v2/questionnaire/${query.size > 0 ? `?${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(createApiAssessmentApiV2QuestionnaireResponse, await res.json())
};