import {z} from 'zod'

export type GetApiV1MinerAgentsOptions = {baseUrl: string, SessionBearer?: string | undefined, fetch?: typeof fetch | undefined};

export const agentVersionState = z.enum(["RECEIVED", "QUEUED", "RUNNING", "ELIGIBLE", "DISCARDED", "CANCELLED"]);

export const agentLatestVersion = z.object({eliminated_at: z.string().nullable().optional(), eliminated_in_race_number: z.number().int().nullable().optional(), agent_version_id: z.string(), version_number: z.number().int(), submitted_at: z.string(), state: agentVersionState, final_score: z.number().nullable().optional(), is_selected_for_race: z.boolean().optional(), selection_fallback_reason: z.enum(["eliminated", "discarded", "below_threshold", "not_eligible", "selected_after_close"]).nullable().optional(), is_pinnable: z.boolean().optional(), pin_disabled_reason: z.enum(["eliminated", "discarded", "below_threshold", "not_eligible", "selected_after_close"]).nullable().optional()});

export const agentPublic = z.object({agent_id: z.string(), miner_hotkey: z.string(), agent_name: z.string(), created_at: z.string(), latest_version: agentLatestVersion.nullable().optional()});

export const minerAgentsResponse = z.object({agents: z.array(agentPublic), can_submit: z.boolean(), next_allowed_at: z.string().nullable().optional(), racing_agent_version_id: z.string().nullable().optional(), racing_agent_id: z.string().nullable().optional(), selected_agent_version_id: z.string().nullable().optional(), selected_agent_id: z.string().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
};

/**
 * List miner's agents
 * 
 * GET /v1/miner/agents
 * 
 * Also accepts auth: X-Hotkey + X-Timestamp + X-Nonce + X-Signature
 */
export const getApiV1MinerAgents = async (options: GetApiV1MinerAgentsOptions) => {
const {baseUrl, fetch: fetchFn = fetch, SessionBearer} = options ?? {}

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

if (SessionBearer !== undefined) headers.set('authorization', `Bearer ${SessionBearer}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/miner/agents${query.size > 0 ? `?${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(minerAgentsResponse, await res.json())
};