import {z} from 'zod'

export type GetApiV1EvalRunsArgs = {session_id?: (string | null) | undefined, evaluator_id?: (string | null) | undefined, agent_id?: (string | null) | undefined, status?: ('pending' | 'running' | 'completed' | 'failed' | 'errored' | null) | undefined, scope?: ('live' | 'simulation' | 'test' | null) | undefined, outcome?: ('passed' | 'failed' | 'no_verdict' | 'errored' | null) | undefined, score_min?: (number | null) | undefined, score_max?: (number | null) | undefined, severity?: ('info' | 'low' | 'medium' | 'high' | 'critical' | null) | undefined, channel?: (string | null) | undefined, created_from?: (string | null) | undefined, created_to?: (string | null) | undefined, is_critical?: (boolean | null) | undefined, q?: (string | null) | undefined, limit?: number | undefined, cursor?: (string | null) | undefined};

export type GetApiV1EvalRunsOptions = {baseUrl: string, APIKeyHeader?: string | undefined, fetch?: typeof fetch | undefined};

export const evalScoreResponse = z.object({id: z.string(), organization_id: z.string(), eval_run_id: z.string(), value: z.number().nullable(), raw_value: z.number().nullable(), label: z.string().nullable(), passed: z.boolean().nullable(), confidence: z.number().nullable(), rationale: z.string().nullable(), severity: z.string().nullable(), blocking: z.boolean(), evidence_observation_ids: z.array(z.string()).optional(), created_at: z.string()});

export const evalRunResponse = z.object({id: z.string(), organization_id: z.string(), session_id: z.string(), evaluator_id: z.string(), agent_id: z.string().nullable().optional(), channel: z.string().nullable().optional(), session_type: z.string().nullable().optional(), status: z.string(), started_at: z.string().nullable(), finished_at: z.string().nullable(), error_text: z.string().nullable(), prompt_snapshot: z.string().nullable(), threshold_snapshot: z.number().nullable(), config_snapshot: z.record(z.string(), z.unknown()).optional(), severity_snapshot: z.string(), format_snapshot: z.string(), is_critical_snapshot: z.boolean().optional(), created_at: z.string(), scores: z.array(evalScoreResponse).optional()});

export const cursorPageEvalRunResponse = z.object({items: z.array(evalRunResponse), next_cursor: z.string().nullable().optional(), has_more: z.boolean()});

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
};

/**
 * List eval runs
 * 
 * GET /v1/eval-runs
 */
export const getApiV1EvalRuns = async (args: GetApiV1EvalRunsArgs, options: GetApiV1EvalRunsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, APIKeyHeader} = options ?? {}

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

if (args.session_id != null) query.append("session_id", String(args.session_id))
if (args.evaluator_id != null) query.append("evaluator_id", String(args.evaluator_id))
if (args.agent_id != null) query.append("agent_id", String(args.agent_id))
if (args.status != null) query.append("status", String(args.status))
if (args.scope != null) query.append("scope", String(args.scope))
if (args.outcome != null) query.append("outcome", String(args.outcome))
if (args.score_min != null) query.append("score_min", String(args.score_min))
if (args.score_max != null) query.append("score_max", String(args.score_max))
if (args.severity != null) query.append("severity", String(args.severity))
if (args.channel != null) query.append("channel", String(args.channel))
if (args.created_from != null) query.append("created_from", String(args.created_from))
if (args.created_to != null) query.append("created_to", String(args.created_to))
if (args.is_critical != null) query.append("is_critical", String(args.is_critical))
if (args.q != null) query.append("q", String(args.q))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.cursor != null) query.append("cursor", String(args.cursor))
if (APIKeyHeader !== undefined) headers.set("x-api-key", APIKeyHeader)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/eval-runs${query.size > 0 ? `?${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(cursorPageEvalRunResponse, await res.json())
};