import Flutter
import UIKit

/// Flutter entry point — mirrors the Android `JielihomePlugin.kt`.
///
/// Responsibilities (kept symmetric with Android):
/// 1. Bind `device_jieli/method` MethodChannel to [MethodRouter];
/// 2. Bind `device_jieli/event` EventChannel to the shared [EventDispatcher];
/// 3. Register the JieLi vendor with the device-manager native registry
///    (placeholder until [JieliNativeDevicePlugin.register] is wired).
///
/// All actual business logic lives in [JieliHomeServer] and the feature/event
/// submodules under `Classes/Feature/`.
public class JielihomePlugin: NSObject, FlutterPlugin {

  private var methodChannel: FlutterMethodChannel?
  private var eventChannel: FlutterEventChannel?
  private var router: MethodRouter?

  public static func register(with registrar: FlutterPluginRegistrar) {
    let instance = JielihomePlugin()
    instance.attach(registrar: registrar)
  }

  private func attach(registrar: FlutterPluginRegistrar) {
    let server = JieliHomeServer.shared
    let router = MethodRouter(server: server)
    self.router = router

    let methodChannel = FlutterMethodChannel(
      name: "device_jieli/method",
      binaryMessenger: registrar.messenger()
    )
    methodChannel.setMethodCallHandler { call, result in
      router.handle(call: call, result: result)
    }
    self.methodChannel = methodChannel

    let eventChannel = FlutterEventChannel(
      name: "device_jieli/event",
      binaryMessenger: registrar.messenger()
    )
    eventChannel.setStreamHandler(server.dispatcher)
    self.eventChannel = eventChannel

    // Vendor registration with the device-manager registry. Symmetric to
    // Android's `JieliNativeDevicePlugin.register(...)`.
    JieliNativeDevicePlugin.register()
  }
}