import { createBoxState, createGatewayState } from "../sim/model.mjs";
import { createPatchPanelState, createWiringConfig } from "./model.mjs";

export const MVP_BOX_IDS = Object.freeze(["boxsim_alpha", "boxsim_beta"]);
export const MVP_GATEWAY_IDS = Object.freeze(["gwsimu_east", "gwsimu_west"]);

export function createMvpTopology({ now = "2026-01-01T00:00:00.000Z" } = {}) {
  const gatewaySessionIds = MVP_GATEWAY_IDS.map((gatewayId) => `gws_${gatewayId}`);
  const boxes = MVP_BOX_IDS.map((boxId, index) =>
    createBoxState({
      boxId,
      gatewaySessionId: gatewaySessionIds[index],
      now
    })
  );

  const gateways = MVP_GATEWAY_IDS.map((gatewayId, index) =>
    createGatewayState({
      gatewayId,
      endpoint: `http://127.0.0.1:${7101 + index}`,
      boxes: [boxes[index].resource.resourceId],
      now
    })
  );

  const wiringConfig = createWiringConfig({
    gatewaySessionId: gatewaySessionIds[0],
    connections: [
      {
        from: {
          resourceId: boxes[0].resource.resourceId,
          port: "uart0"
        },
        to: {
          resourceId: boxes[1].resource.resourceId,
          port: "uart0"
        },
        mode: "exclusive"
      },
      {
        from: {
          resourceId: boxes[0].resource.resourceId,
          port: "gpio0"
        },
        to: {
          resourceId: boxes[1].resource.resourceId,
          port: "gpio0"
        },
        mode: "monitor"
      }
    ],
    now
  });

  const patchPanel = createPatchPanelState({
    gatewaySessionId: gatewaySessionIds[0],
    wiringConfig,
    now
  });

  return {
    topologyId: "top_mvp_l2_l3_sim_patch",
    projectId: "prj_mvp_topology",
    environment: "dev",
    services: {
      boxes,
      gateways,
      patchPanel
    },
    wiringConfig,
    constraints: {
      patchPanelIsOnlyCrossDeviceChannel: true,
      boxSimuLocalLoopbackForCrossDeviceSync: false
    },
    dryRunHints: {
      cliTarget: "fixtures/mvp-topology/topology.json",
      expectedServices: ["hwlab-box-simu", "hwlab-gateway-simu", "hwlab-patch-panel"]
    }
  };
}