import {z} from 'zod'

export type EvalFilterType = 'agent' | 'team' | 'workflow';

export type SortOrder = 'asc' | 'desc';

export type GetApiEvalRunsArgs = {agent_id?: (string | null) | undefined, team_id?: (string | null) | undefined, workflow_id?: (string | null) | undefined, model_id?: (string | null) | undefined, type?: (EvalFilterType | null) | undefined, limit?: (number | null) | undefined, page?: (number | null) | undefined, sort_by?: (string | null) | undefined, sort_order?: (SortOrder | null) | undefined, db_id?: (string | null) | undefined, table?: (string | null) | undefined, eval_types?: (string | null) | undefined};

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

export const evalType = z.enum(["accuracy", "agent_as_judge", "performance", "reliability"]);

export const evalSchema = z.object({id: z.string(), agent_id: z.string().nullable().optional(), model_id: z.string().nullable().optional(), model_provider: z.string().nullable().optional(), team_id: z.string().nullable().optional(), workflow_id: z.string().nullable().optional(), name: z.string().nullable().optional(), evaluated_component_name: z.string().nullable().optional(), eval_type: evalType, eval_data: z.record(z.string(), z.unknown()), eval_input: z.record(z.string(), z.unknown()).nullable().optional(), created_at: z.string().nullable().optional(), updated_at: z.string().nullable().optional()});

export const paginationInfo = z.object({page: z.number().int().gte(0).optional(), limit: z.number().int().gte(1).optional(), total_pages: z.number().int().gte(0).optional(), total_count: z.number().int().gte(0).optional(), search_time_ms: z.number().gte(0).optional()});

export const paginatedResponseEvalSchema = z.object({data: z.array(evalSchema), meta: paginationInfo});

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 Evaluation Runs
 * 
 * GET /eval-runs
 */
export const getApiEvalRuns = async (args: GetApiEvalRunsArgs, options: GetApiEvalRunsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, HTTPBearer} = options ?? {}

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

if (args.agent_id != null) query.append("agent_id", String(args.agent_id))
if (args.team_id != null) query.append("team_id", String(args.team_id))
if (args.workflow_id != null) query.append("workflow_id", String(args.workflow_id))
if (args.model_id != null) query.append("model_id", String(args.model_id))
if (args.type != null) query.append("type", String(args.type))
if (args.limit != null) query.append("limit", String(args.limit))
if (args.page != null) query.append("page", String(args.page))
if (args.sort_by != null) query.append("sort_by", String(args.sort_by))
if (args.sort_order != null) query.append("sort_order", String(args.sort_order))
if (args.db_id != null) query.append("db_id", String(args.db_id))
if (args.table != null) query.append("table", String(args.table))
if (args.eval_types != null) query.append("eval_types", String(args.eval_types))
if (HTTPBearer !== undefined) headers.set('authorization', `Bearer ${HTTPBearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/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(paginatedResponseEvalSchema, await res.json())
};