package com.rtnmapsgl

import android.Manifest
import android.app.Activity
import android.content.Context
import android.content.pm.PackageManager
import android.view.ViewGroup
import android.webkit.GeolocationPermissions
import android.webkit.WebChromeClient
import android.webkit.WebView
import android.webkit.WebViewClient
import androidx.appcompat.app.AlertDialog
import androidx.core.app.ActivityCompat
import androidx.core.content.ContextCompat
import com.facebook.react.bridge.ReactApplicationContext
import com.rtnmapsgl.interop.JSBuilder
import com.rtnmapsgl.interop.WebAppInterface

class MapsGLWebview(
    context: Context,
    getJSBuilder: (builder: JSBuilder) -> Unit,
    viewModel: MainViewModel,
    reactContext: ReactApplicationContext,
    reactNativeViewId: Int
) : WebView(context) {

    companion object {
        val mUrl = "file:///android_asset/mapview_android.html"
    }

    private val jsBuilder: JSBuilder = JSBuilder(context, this)

    init {
        getJSBuilder(jsBuilder)
        layoutParams = ViewGroup.LayoutParams(
            ViewGroup.LayoutParams.MATCH_PARENT,
            ViewGroup.LayoutParams.MATCH_PARENT
        )
        webViewClient = WebViewClient()
        settings.javaScriptEnabled = true
        webChromeClient = object: WebChromeClient() {
            override fun onGeolocationPermissionsShowPrompt(
                origin: String,
                callback: GeolocationPermissions.Callback
            ) {
                android.util.Log.d("MapsGLWebview", "CONNOR - onGeolocationPermissionsShowPrompt called")

                if (ContextCompat.checkSelfPermission(context, Manifest.permission.ACCESS_FINE_LOCATION)
                    != PackageManager.PERMISSION_GRANTED) {
                    if (ActivityCompat.shouldShowRequestPermissionRationale((context as Activity),
                            Manifest.permission.ACCESS_FINE_LOCATION)) {
                        AlertDialog.Builder(context)
                            .setTitle("Location Permission Needed")
                            .setMessage("This app needs the Location permission. Please accept to use location functionality.")
                            .setPositiveButton("OK") { _, _ ->
                                ActivityCompat.requestPermissions((context as Activity),
                                    arrayOf(Manifest.permission.ACCESS_FINE_LOCATION),
                                    123)
                            }
                            .create()
                            .show()
                    } else {
                        ActivityCompat.requestPermissions((context as Activity),
                            arrayOf(Manifest.permission.ACCESS_FINE_LOCATION),
                            123)
                    }
                } else {
                    callback.invoke(origin, true, false)
                }
            }
        }
        settings.setGeolocationEnabled(true)
        setWebContentsDebuggingEnabled(true) // debugging
        addJavascriptInterface(
            WebAppInterface(viewModel, jsBuilder, reactContext, reactNativeViewId),
            "Android"
        )
        load()
    }

    fun load() {
        loadUrl(mUrl)
    }
}