import {z} from 'zod'

export type CreateApiApiV1PoliciesImpactReportArgs = {body: {policy_id: string, inputs: Array<{query: string, request_type?: string | undefined, user?: {[key: string]: unknown} | undefined, context?: {[key: string]: unknown} | undefined}>}};

export type CreateApiApiV1PoliciesImpactReportOptions = {baseUrl?: string | undefined, BearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const createApiApiV1PoliciesImpactReportResponse = z.object({policy_id: z.string().optional(), total_inputs: z.number().int().optional(), matched: z.number().int().optional(), blocked: z.number().int().optional(), match_rate: z.number().optional(), block_rate: z.number().optional(), results: z.array(z.object({input_index: z.number().int().optional(), matched: z.boolean().optional(), blocked: z.boolean().optional(), actions: z.array(z.string()).optional()})).optional(), processing_time_ms: z.number().int().optional(), generated_at: z.string().optional(), tier: z.string().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
};

/**
 * Generate impact report for a policy (Evaluation+)
 * 
 * POST /api/v1/policies/impact-report
 * 
 * Also accepts auth: basicAuth
 */
export const createApiApiV1PoliciesImpactReport = async (args: CreateApiApiV1PoliciesImpactReportArgs, options?: CreateApiApiV1PoliciesImpactReportOptions) => {
const {baseUrl = "https://orchestrator.getaxonflow.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 (BearerAuth !== undefined) headers.set('authorization', `Bearer ${BearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/policies/impact-report${query.size > 0 ? `?${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(createApiApiV1PoliciesImpactReportResponse, await res.json())
};