api-integration.dart

import 'dart:convert';
import 'dart:async';

/// ---------------- MOCK API ----------------

Future<String> mockApiResponse() async {
  await Future.delayed(const Duration(milliseconds: 500));

  return jsonEncode({
    "meta": {"v": "1.2", "ts": "2025-12-23T14:20:00Z"},
    "system": {
      "chains": [
        {
          "name": "boot_chain",
          "flow": {
            "stage": "spl",
            "next": {
              "stage": "bl31",
              "secure": true,
              "next": {
                "stage": "kernel",
                "handoff": {
                  "init": {
                    "root": {
                      "type": "block",
                      "paths": {
                        "primary": "/dev/mmcblk0p5",
                        "fallback": ["/dev/mmcblk1p5", "/dev/mmcblk2p5"],
                      },
                    },
                  },
                },
              },
            },
          },
        },
        {
          "name": "recovery_chain",
          "flow": {
            "stage": "spl",
            "next": {
              "stage": "bl31",
              "secure": true,
              "next": {
                "stage": "recovery",
                "handoff": {
                  "init": {
                    "root": {
                      "type": "block",
                      "paths": {
                        "primary": "/dev/mmcblk0p6",
                        "fallback": ["/dev/mmcblk1p6", "/dev/mmcblk2p6"],
                      },
                    },
                  },
                },
              },
            },
          },
        },
      ],
    },
  });
}

/// Extract and print:
/// Chain Name -> Primary Root Device