import {z} from 'zod'

export type GetApiV1AgentsAgentIdConstraintsArgs = {agent_id: string};

export type GetApiV1AgentsAgentIdConstraintsOptions = {baseUrl: string, fetch?: typeof fetch | undefined};

export const domeGuardConfig = z.object({input_guards: z.array(z.string()), output_guards: z.array(z.string()), guards: z.record(z.string(), z.record(z.string(), z.unknown()))});

export const toolPermission = z.object({name: z.string(), identity: z.string(), endpoint: z.string(), allowed_actions: z.array(z.string()).nullable().optional()});

export const organizationConstraints = z.object({required_input_guards: z.array(z.string()), required_output_guards: z.array(z.string()), denied_tools: z.array(z.string()), max_model_tier: z.string().nullable().optional()});

export const agentConstraints = z.object({agent_id: z.string(), dome_config: domeGuardConfig, tool_permissions: z.array(toolPermission), organization: organizationConstraints, enforcement_mode: z.enum(["warn", "enforce"]), updated_at: z.string()});

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
};

/**
 * Fetch agent trust constraints
 * 
 * GET /v1/agents/{agent_id}/constraints
 */
export const getApiV1AgentsAgentIdConstraints = async (args: GetApiV1AgentsAgentIdConstraintsArgs, options: GetApiV1AgentsAgentIdConstraintsOptions) => {
const {baseUrl, fetch: fetchFn = fetch} = options ?? {}

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

const url = `${baseUrl.replace(/\/+$/, '')}/v1/agents/${encodeURIComponent(String(args.agent_id))}/constraints${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(agentConstraints, await res.json())
};