import {z} from 'zod'

export type UserContext = {id?: number | undefined, email?: string | undefined, role?: string | undefined, region?: string | undefined, permissions?: Array<string> | undefined, tenant_id?: string | undefined, org_id?: string | undefined};

export type PlanRequest = {query: string, domain?: ('travel' | 'healthcare' | 'finance' | 'generic') | undefined, execution_mode?: ('auto' | 'parallel' | 'sequential' | 'balanced' | 'confirm' | 'step') | undefined, user: UserContext, client?: {[key: string]: unknown} | undefined, context?: {[key: string]: unknown} | undefined};

export type CreateApiApiV1PlanExecuteArgs = {body: PlanRequest};

export type CreateApiApiV1PlanExecuteOptions = {baseUrl?: string | undefined, fetch?: typeof fetch | undefined};

export const appliedPolicyDetail = z.object({policy_id: z.string().optional(), policy_name: z.string().optional(), description: z.string().optional(), action: z.string().optional(), risk_level: z.enum(["low", "medium", "high", "critical"]).optional(), allow_override: z.boolean().optional(), matched_rule: z.string().optional(), segment_id: z.string().optional()});

export const policyEvaluationResult = z.object({allowed: z.boolean().optional(), applied_policies: z.array(z.string()).optional(), risk_score: z.number().gte(0).lte(1).optional(), severity: z.enum(["critical", "high", "medium", "low"]).optional(), severity_policy_id: z.string().optional(), required_actions: z.array(z.string()).optional(), processing_time_ms: z.number().int().optional(), database_accessed: z.boolean().optional(), evaluation_error: z.boolean().optional(), segments_resolved: z.boolean().optional(), applied_policies_detail: z.array(appliedPolicyDetail).optional(), preferred_provider: z.string().optional(), allowed_providers: z.array(z.string()).optional(), routing_reason: z.string().optional()});

export const planResponse = z.object({success: z.boolean().optional(), plan_id: z.string().optional(), version: z.number().int().optional(), steps: z.array(z.object({name: z.string().optional(), type: z.string().optional(), description: z.string().optional()})).optional(), workflow_execution_id: z.string().optional(), result: z.unknown(), metadata: z.object({tasks_executed: z.number().int().optional(), execution_mode: z.string().optional(), execution_time_ms: z.number().int().optional(), tasks: z.array(z.object({name: z.string().optional(), status: z.string().optional(), time_ms: z.number().int().optional()})).optional()}).optional(), error: z.string().optional(), policy_info: policyEvaluationResult.optional(), engine: z.literal("anchored").optional(), subject_type: z.string().optional(), policy_bundle: z.string().optional(), verdict: z.literal("blocked").optional(), complexity: z.string().optional(), domain: z.string().optional(), parallel: z.boolean().optional(), status: 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
};

/**
 * Execute a stored plan
 * 
 * POST /api/v1/plan/execute
 */
export const createApiApiV1PlanExecute = async (args: CreateApiApiV1PlanExecuteArgs, options?: CreateApiApiV1PlanExecuteOptions) => {
const {baseUrl = "https://orchestrator.getaxonflow.com", fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/api/v1/plan/execute${query.size > 0 ? `?${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(planResponse, await res.json())
};