import {z} from 'zod'

export type ScorerRefForm = string | {id: string, version?: (number | null) | undefined};

export type CreateApiApiOrgIdEvalJobsArgs = {org_id: string, body: {description?: (string | null) | undefined, filterCondition: unknown, inputMapping?: (Record<string, never> | null) | undefined, name: string, samplingMode: string, samplingValue: unknown, scorers: Array<ScorerRefForm>, sessionConfig?: (Record<string, never> | null) | undefined, spanSelectorBindings?: Record<string, never> | undefined, spanSelectors?: Array<Record<string, never>> | undefined, stream: string, streamType: string, targetScope?: string | undefined, traceConfig?: (Record<string, never> | null) | undefined}};

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

export const evalJobLastErrorBody = z.object({at: z.number().int(), kind: z.string(), message: z.string()});

export const evalJobHealthBody = z.object({evaluatedAt: z.number().int(), lastError: evalJobLastErrorBody.nullable().optional(), lastSuccessAt: z.number().int().nullable().optional(), recentErrors: z.number().int().gte(0), recentRuns: z.number().int().gte(0), scores24h: z.number().int().gte(0), since: z.number().int(), state: z.string()});

export const scorerRefForm = z.union([z.string(), z.object({id: z.string(), version: z.number().int().nullable().optional()})]);

export const createApiApiOrgIdEvalJobsResponse = z.object({createdAt: z.number().int(), description: z.string().nullable().optional(), filterCondition: z.unknown(), health: evalJobHealthBody.nullable().optional(), id: z.string(), inputMapping: z.object({}).nullable().optional(), name: z.string(), orgId: z.string(), pipelineId: z.string().nullable().optional(), samplingMode: z.string(), samplingValue: z.unknown(), scorers: z.array(scorerRefForm), sessionConfig: z.object({}).nullable().optional(), spanSelectorBindings: z.object({}), spanSelectors: z.array(z.object({})), status: z.string(), stream: z.string(), streamType: z.string(), targetScope: z.string(), traceConfig: z.object({}).nullable().optional(), updatedAt: z.number().int(), version: 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
};

/**
 * Create online eval job (draft)
 * 
 * POST /api/{org_id}/eval_jobs
 */
export const createApiApiOrgIdEvalJobs = async (args: CreateApiApiOrgIdEvalJobsArgs, options: CreateApiApiOrgIdEvalJobsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, Authorization} = options ?? {}

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

if (Authorization !== undefined) headers.set("Authorization", Authorization)

const url = `${baseUrl.replace(/\/+$/, '')}/api/${encodeURIComponent(String(args.org_id))}/eval_jobs${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(createApiApiOrgIdEvalJobsResponse, await res.json())
};