import {z} from 'zod'

export type GetApiApiExperimentsExperimentIdArgs = {experiment_id: string, authorization: string};

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

export const testCaseResponse = z.object({id: z.string(), experiment_id: z.string(), prompt: z.string(), sort_order: z.number().int(), created_at: z.string(), updated_at: z.string(), evaluator_type: z.string().nullable().optional(), expected_output: z.string().nullable().optional(), evaluation_criteria: z.string().nullable().optional()});

export const toolCallData = z.object({name: z.string(), arguments: z.record(z.string(), z.unknown()), status: z.string(), result: z.unknown(), latency_ms: z.number().int().nullable().optional(), is_client_side: z.boolean().optional(), error: z.string().nullable().optional()});

export const messageData = z.object({type: z.string(), content: z.string().nullable().optional(), name: z.string().nullable().optional(), arguments: z.record(z.string(), z.unknown()).nullable().optional(), status: z.string().nullable().optional(), result: z.unknown(), latency_ms: z.number().int().nullable().optional(), is_client_side: z.boolean().nullable().optional(), error: z.string().nullable().optional()});

export const runResultResponse = z.object({id: z.string(), test_case_id: z.string(), status: z.string(), output: z.string().nullable().optional(), error_message: z.string().nullable().optional(), latency_ms: z.number().int().nullable().optional(), tool_calls: z.array(toolCallData).optional(), messages: z.array(messageData).optional(), is_dry_run: z.boolean().optional(), score: z.number().nullable().optional(), score_label: z.string().nullable().optional(), score_explanation: z.string().nullable().optional()});

export const experimentRunResponse = z.object({id: z.string(), experiment_id: z.string(), status: z.string(), started_at: z.string(), completed_at: z.string().nullable().optional(), total_cases: z.number().int(), completed_cases: z.number().int(), results: z.array(runResultResponse)});

export const experimentResponse = z.object({id: z.string(), product_id: z.string(), name: z.string(), created_at: z.string(), updated_at: z.string(), test_cases: z.array(testCaseResponse), latest_run: experimentRunResponse.nullable().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
};

/**
 * Get Experiment
 * 
 * GET /api/experiments/{experiment_id}
 */
export const getApiApiExperimentsExperimentId = async (args: GetApiApiExperimentsExperimentIdArgs, options: GetApiApiExperimentsExperimentIdOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

if (args.authorization != null) headers.set("authorization", String(args.authorization))

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