import {z} from 'zod'

export type RuleUrn = string;

export type RuleTestRecord = {values: {[key: string]: string | null}};

export type RuleTestJoin = {parentAttributeName: string, joinedAttributeName: string};

export type RuleTestInput = {records: Array<RuleTestRecord>, joinedRecords?: Array<RuleTestRecord> | undefined, join?: RuleTestJoin | undefined, parameterValues?: {[key: string]: string} | undefined};

export type CreateApiDataQualityV1RulesRuleUrnTestArgs = {ruleUrn: RuleUrn, body: RuleTestInput};

export type CreateApiDataQualityV1RulesRuleUrnTestOptions = {baseUrl?: string | undefined, JWT?: string | undefined, fetch?: typeof fetch | undefined};

export const ruleConditionUrn = z.string();

export const dqDimensionResultUrn = z.string();

export const ruleTestRecordResult = z.object({outcome: z.string(), conditionUrn: ruleConditionUrn.optional(), dimensionResultUrn: dqDimensionResultUrn.optional()});

export const ruleTestResult = z.object({results: z.array(ruleTestRecordResult)});

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
};

/**
 * Test rule
 * 
 * POST /data-quality/v1/rules/{ruleUrn}/test
 */
export const createApiDataQualityV1RulesRuleUrnTest = async (args: CreateApiDataQualityV1RulesRuleUrnTestArgs, options?: CreateApiDataQualityV1RulesRuleUrnTestOptions) => {
const {baseUrl = "https://your-environment.ataccama.one/api", fetch: fetchFn = fetch, JWT} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/data-quality/v1/rules/${encodeURIComponent(String(args.ruleUrn))}/test${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(ruleTestResult, await res.json())
};