package dev.onejs.onenative

import com.facebook.react.module.annotations.ReactModule
import com.facebook.react.uimanager.ThemedReactContext
import com.facebook.react.uimanager.UIManagerHelper
import com.facebook.react.uimanager.ViewGroupManager
import com.facebook.react.uimanager.ViewManagerDelegate
import com.facebook.react.viewmanagers.OneNativeSafeAreaProviderManagerDelegate
import com.facebook.react.viewmanagers.OneNativeSafeAreaProviderManagerInterface

@ReactModule(name = OneNativeSafeAreaProviderManager.REACT_CLASS)
class OneNativeSafeAreaProviderManager :
    ViewGroupManager<OneNativeSafeAreaProviderView>(),
    OneNativeSafeAreaProviderManagerInterface<OneNativeSafeAreaProviderView> {

    private val delegate: ViewManagerDelegate<OneNativeSafeAreaProviderView> =
        OneNativeSafeAreaProviderManagerDelegate(this)

    override fun getName(): String = REACT_CLASS

    override fun createViewInstance(reactContext: ThemedReactContext): OneNativeSafeAreaProviderView =
        OneNativeSafeAreaProviderView(reactContext)

    override fun getDelegate(): ViewManagerDelegate<OneNativeSafeAreaProviderView> = delegate

    override fun addEventEmitters(
        reactContext: ThemedReactContext,
        view: OneNativeSafeAreaProviderView
    ) {
        super.addEventEmitters(reactContext, view)
        view.setOnInsetsChangeHandler { insetsPx, framePx ->
            val dispatcher =
                UIManagerHelper.getEventDispatcherForReactTag(reactContext, view.id)
                    ?: return@setOnInsetsChangeHandler false
            val density = view.resources.displayMetrics.density.toDouble()
            dispatcher.dispatchEvent(
                OneNativeSafeAreaInsetsChangeEvent(
                    UIManagerHelper.getSurfaceId(view),
                    view.id,
                    insetsPx[0] / density,
                    insetsPx[1] / density,
                    insetsPx[2] / density,
                    insetsPx[3] / density,
                    framePx[0] / density,
                    framePx[1] / density,
                    framePx[2] / density,
                    framePx[3] / density))
            true
        }
    }

    override fun prepareToRecycleView(
        reactContext: ThemedReactContext,
        view: OneNativeSafeAreaProviderView,
    ): OneNativeSafeAreaProviderView? {
        val recyclable = super.prepareToRecycleView(reactContext, view) ?: return null
        recyclable.resetForReuse()
        return recyclable
    }

    override fun onDropViewInstance(view: OneNativeSafeAreaProviderView) {
        view.resetForReuse()
        super.onDropViewInstance(view)
    }

    override fun getExportedCustomDirectEventTypeConstants(): Map<String, Any> {
        val events =
            super.getExportedCustomDirectEventTypeConstants()?.toMutableMap() ?: mutableMapOf()
        events["topNativeInsetsChange"] =
            mapOf("registrationName" to "onNativeInsetsChange")
        return events
    }

    companion object {
        const val REACT_CLASS = "OneNativeSafeAreaProvider"
    }
}