import {z} from 'zod'

export type GetApiV1KnowledgeGapsClustersClusterIdLifecycleEventsArgs = {cluster_id: string, limit?: number | undefined, offset?: number | undefined};

export type GetApiV1KnowledgeGapsClustersClusterIdLifecycleEventsOptions = {baseUrl: string, APIKeyHeader?: string | undefined, fetch?: typeof fetch | undefined};

export const lifecycleEventRow = z.object({id: z.string(), gap_cluster_id: z.string(), from_status: z.string().nullable(), to_status: z.string(), actor_user_id: z.string().nullable(), actor_type: z.string(), reason: z.string().nullable(), note: z.string().nullable(), created_at: z.string()});

export const lifecycleEventsResponse = z.object({items: z.array(lifecycleEventRow), total: z.number().int()});

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
};

/**
 * Audit-trail of lifecycle transitions for a cluster
 * 
 * GET /v1/knowledge-gaps/clusters/{cluster_id}/lifecycle-events
 */
export const getApiV1KnowledgeGapsClustersClusterIdLifecycleEvents = async (args: GetApiV1KnowledgeGapsClustersClusterIdLifecycleEventsArgs, options: GetApiV1KnowledgeGapsClustersClusterIdLifecycleEventsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, APIKeyHeader} = options ?? {}

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

if (args.limit != null) query.append("limit", String(args.limit))
if (args.offset != null) query.append("offset", String(args.offset))
if (APIKeyHeader !== undefined) headers.set("x-api-key", APIKeyHeader)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/knowledge-gaps/clusters/${encodeURIComponent(String(args.cluster_id))}/lifecycle-events${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(lifecycleEventsResponse, await res.json())
};