import {z} from 'zod'

export type EngineRestVariable = {name?: string | undefined, type?: string | undefined, value?: Record<string, never> | undefined, valueUrl?: string | undefined};

export type AgentInstanceExchangeRequest = {operationKey?: string | undefined, payload?: Array<EngineRestVariable> | undefined};

export type CreateApiAgentRuntimeAgentInstancesAgentInstanceIdExchangesArgs = {agentInstanceId: string, body: AgentInstanceExchangeRequest};

export type CreateApiAgentRuntimeAgentInstancesAgentInstanceIdExchangesOptions = {baseUrl?: string | undefined, basicAuth?: {username: string, password: string} | undefined, fetch?: typeof fetch | undefined};

export const jsonNode = z.object({string: z.boolean().optional(), valueNode: z.boolean().optional(), missingNode: z.boolean().optional(), short: z.boolean().optional(), double: z.boolean().optional(), bigDecimal: z.boolean().optional(), bigInteger: z.boolean().optional(), textual: z.boolean().optional(), boolean: z.boolean().optional(), container: z.boolean().optional(), object: z.boolean().optional(), binary: z.boolean().optional(), number: z.boolean().optional(), nodeType: z.enum(["ARRAY", "BINARY", "BOOLEAN", "MISSING", "NULL", "NUMBER", "OBJECT", "POJO", "STRING"]).optional(), long: z.boolean().optional(), pojo: z.boolean().optional(), int: z.boolean().optional(), integralNumber: z.boolean().optional(), floatingPointNumber: z.boolean().optional(), array: z.boolean().optional(), empty: z.boolean().optional(), : z.boolean().optional(), float: z.boolean().optional(), embeddedValue: z.boolean().optional()});

export const temporalUnit = z.object({durationEstimated: z.boolean().optional(), duration: z.lazy(() => duration.optional()), timeBased: z.boolean().optional(), dateBased: z.boolean().optional()});

export const duration: z.ZodType<Duration> = z.object({seconds: z.number().int().optional(), zero: z.boolean().optional(), nano: z.number().int().optional(), negative: z.boolean().optional(), positive: z.boolean().optional(), units: z.array(temporalUnit).optional()});

export const agentExchangePartTimelineResponse = z.object({id: z.string(), type: z.enum(["input", "output", "toolInput", "toolOutput"]), subType: z.enum(["request", "response", "technical", "system", "toolCall", "arguments"]).optional(), content: z.string().optional(), invocationSequence: z.number().int().optional()});

export const agentExchangeTimelineResponse = z.object({id: z.string(), startTime: z.number().int().optional(), endTime: z.number().int().optional(), duration: duration.optional(), type: z.enum(["user", "assistant", "tool", "chatModel"]), subType: z.string(), userId: z.string().optional(), promptTokenCount: z.number().int().optional(), outputTokenCount: z.number().int().optional(), transactionOrder: z.number().int().optional(), parts: z.array(agentExchangePartTimelineResponse).optional()});

export const agentInvocationTimelineResponse = z.object({id: z.string(), startTime: z.number().int().optional(), endTime: z.number().int().optional(), operationKey: z.string().optional(), promptTokenCount: z.number().int().optional(), outputTokenCount: z.number().int().optional(), exchanges: z.array(agentExchangeTimelineResponse).optional()});

export const agentInstanceTimelineResponse = z.object({id: z.string(), definitionId: z.string(), definitionName: z.string().optional(), definitionKey: z.string().optional(), invocations: z.array(agentInvocationTimelineResponse).optional()});

export const agentInstanceResponse = z.object({id: z.string(), agentDefinitionId: z.string(), agentDefinitionKey: z.string(), agentDefinitionName: z.string(), referenceId: z.string().optional(), referenceType: z.string().optional(), callbackId: z.string().optional(), callbackType: z.string().optional(), callbackScopeId: z.string().optional(), startTime: z.number().int(), startUserId: z.string().optional(), tenantId: z.string().optional(), jsonInvocationResult: jsonNode.optional(), plainTextInvocationResult: z.string().optional(), durationMs: z.number().int().optional(), promptTokenCount: z.number().int().optional(), outputTokenCount: z.number().int().optional(), executionTrace: agentInstanceTimelineResponse.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
};

/**
 * Continue the exchange with a running agent instance
 * 
 * POST /agent-runtime/agent-instances/{agentInstanceId}/exchanges
 */
export const createApiAgentRuntimeAgentInstancesAgentInstanceIdExchanges = async (args: CreateApiAgentRuntimeAgentInstancesAgentInstanceIdExchangesArgs, options?: CreateApiAgentRuntimeAgentInstancesAgentInstanceIdExchangesOptions) => {
const {baseUrl = "http://localhost:8090/agent-api", fetch: fetchFn = fetch, basicAuth} = options ?? {}

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

if (basicAuth !== undefined) headers.set('authorization', `Basic ${btoa(`${basicAuth.username}:${basicAuth.password}`)}`)

const url = `${baseUrl.replace(/\/+$/, '')}/agent-runtime/agent-instances/${encodeURIComponent(String(args.agentInstanceId))}/exchanges${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(agentInstanceResponse, await res.json())
};