package xyz.dynamic.embeddedwebview

import expo.modules.kotlin.modules.Module
import expo.modules.kotlin.modules.ModuleDefinition
import java.util.UUID

class EmbeddedWebViewModule : Module() {
  private var emitterToken: UUID? = null

  override fun definition() = ModuleDefinition {
    Name("EmbeddedWebView")

    Events(
      "onMessage",
      "onShouldStartLoad",
      "onLoadError",
      "onLoadStart",
      "onLoad",
      "onLoadEnd",
    )

    OnCreate {
      emitterToken = EmbeddedWebViewController.attach(appContext) { name, payload ->
        sendEvent(name, payload)
      }
    }

    OnDestroy {
      // Only clear if our emitter is still the live one. Prevents a stale
      // OnDestroy (e.g. during dev hot reload after a newer OnCreate already
      // ran) from nulling the active emitter.
      emitterToken?.let { token ->
        EmbeddedWebViewController.detach(token)
        emitterToken = null
      }
    }

    AsyncFunction("setUrl") { url: String ->
      EmbeddedWebViewController.setUrl(url)
    }

    AsyncFunction("setVisible") { visible: Boolean ->
      EmbeddedWebViewController.setVisible(visible)
    }

    AsyncFunction("setDebuggingEnabled") { enabled: Boolean ->
      EmbeddedWebViewController.setDebuggingEnabled(enabled)
    }

    AsyncFunction("destroy") {
      EmbeddedWebViewController.destroy()
    }

    AsyncFunction("postMessage") { message: String ->
      EmbeddedWebViewController.postMessage(message)
    }

    AsyncFunction("respondToShouldStartLoad") { id: String, allow: Boolean ->
      EmbeddedWebViewController.respondToShouldStartLoad(id, allow)
    }
  }
}