Meshtastic-Apple/MeshtasticClient/Model/ModelData.swift

/*
Abstract:
Storage for model data.
*/

import Foundation
import Combine

final class ModelData: ObservableObject {
    @Published var devices: [Device] = load("deviceData.json")

    @Published var nodes: [NodeInfoModel] = load("packets.json")
    
    var nearby: [Device] {
        devices
    }
}

func load<T: Decodable>(_ filename: String) -> T {
    let data: Data

    guard let file = Bundle.main.url(forResource: filename, withExtension: nil)
        else {
            fatalError("Couldn't find \(filename) in main bundle.")
    }

    do {
        data = try Data(contentsOf: file)
    } catch {
        fatalError("Couldn't load \(filename) from main bundle:\n\(error)")
    }

    do {
        let decoder = JSONDecoder()
        return try decoder.decode(T.self, from: data)
    } catch {
        fatalError("Couldn't parse \(filename) as \(T.self):\n\(error)")
    }
}