import {z} from 'zod'

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

export const customAgentKeyAssociation = z.object({id: z.string(), agent_id: z.string(), env_key_name: z.string(), key_id: z.string().nullable().optional(), user_id: z.string(), requirement_type: z.enum(["required", "optional_with_default", "optional_no_default", "custom"]), key_name: z.string().nullable().optional(), owner_email: z.string().nullable().optional()});

export const customAgentDetail = z.object({id: z.string().optional(), agent_name: z.string().optional(), agent_type: z.string().optional(), agent_args: z.object({}).optional(), owner_email: z.string().optional(), mcp_servers: z.array(z.object({tool_name: z.string().optional(), tool_args: z.string().optional(), associated_tool: z.object({id: z.string().optional(), name: z.string().optional(), owner_email: z.string().optional(), description: z.string().optional()}).nullable().optional()})).nullable().optional(), api_keys: z.array(customAgentKeyAssociation).optional()});

export const getApiAgentsCustomAgentsResponse = z.array(customAgentDetail);

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 Custom Agents
 * 
 * GET /agents/custom_agents
 */
export const getApiAgentsCustomAgents = async (options?: GetApiAgentsCustomAgentsOptions) => {
const {baseUrl = "https://h2ogpte.genai.h2o.ai/api/v1", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

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

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

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