import {z} from 'zod'

export type GetApiCygnalActivityActivityIdArgs = {activity_id: string};

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

export const ruleDescription = z.object({rule: z.number().int().optional(), name: z.string().optional(), description: z.string().optional()}).and(z.record(z.string(), z.unknown()));

export const ignoredInput = z.object({type: z.enum(["media", "transcript"]), reason: z.enum(["text_moderation_only", "unsupported_transcript_shape"]), description: z.string()}).and(z.record(z.string(), z.unknown()));

export const appliedPolicy = z.object({id: z.string(), name: z.string(), version_id: z.string().optional()}).and(z.record(z.string(), z.unknown()));

export const activityMonitorResponse = z.object({violation: z.number().optional(), observe_violation: z.number().nullable().optional(), violated_rules: z.array(z.number().int()).optional(), violated_rule_descriptions: z.array(ruleDescription).optional(), ignored_inputs: z.array(ignoredInput).optional(), ipi: z.boolean().optional(), mutation: z.boolean().optional(), scanner_output: z.record(z.string(), z.unknown()).nullable().optional(), reasoning: z.string().nullable().optional(), activity_id: z.string().nullable().optional(), block_message: z.string().nullable().optional(), applied_policies: z.array(appliedPolicy).nullable().optional(), error: z.boolean().optional(), error_message: z.string().nullable().optional(), judgment_deferred: z.literal(false).optional()});

export const latestSecondOpinionResponse = z.object({run_id: z.string().nullable().optional(), status: z.enum(["not_sampled", "running", "completed", "failed", "unavailable"]).optional(), finding: z.enum(["safe", "attempt", "violation"]).nullable().optional(), completed_at: z.string().nullable().optional(), response: activityMonitorResponse.nullable().optional()});

export const activityLookupResponse = z.object({violation: z.number().optional(), observe_violation: z.number().nullable().optional(), violated_rules: z.array(z.number().int()).optional(), violated_rule_descriptions: z.array(ruleDescription).optional(), ignored_inputs: z.array(ignoredInput).optional(), ipi: z.boolean().optional(), mutation: z.boolean().optional(), scanner_output: z.record(z.string(), z.unknown()).nullable().optional(), reasoning: z.string().nullable().optional(), activity_id: z.string(), block_message: z.string().nullable().optional(), applied_policies: z.array(appliedPolicy).nullable().optional(), error: z.boolean().optional(), error_message: z.string().nullable().optional(), judgment_deferred: z.literal(false).optional(), timestamp: z.string(), original_finding: z.enum(["safe", "attempt", "violation", "skipped", "error"]).nullable().optional(), latest_second_opinion: latestSecondOpinionResponse});

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 Activity
 * 
 * GET /cygnal/activity/{activity_id}
 * 
 * Also accepts auth: x-grayswan-api-key, grayswan-api-key, x-gs-api-key, gs-api-key, gs_api_key
 */
export const getApiCygnalActivityActivityId = async (args: GetApiCygnalActivityActivityIdArgs, options?: GetApiCygnalActivityActivityIdOptions) => {
const {baseUrl = "https://api.grayswan.ai", fetch: fetchFn = fetch, GraySwanBearer} = options ?? {}

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

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

const url = `${baseUrl.replace(/\/+$/, '')}/cygnal/activity/${encodeURIComponent(String(args.activity_id))}${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "GET", headers})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(activityLookupResponse, await res.json())
};