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package com.pitchedapps.frost.web
import android.annotation.SuppressLint
import android.content.Context
import android.os.Handler
import android.view.View
import android.webkit.JavascriptInterface
import android.webkit.WebView
import android.webkit.WebViewClient
import com.pitchedapps.frost.facebook.FbTab
import com.pitchedapps.frost.facebook.USER_AGENT_BASIC
import com.pitchedapps.frost.injectors.JsAssets
import com.pitchedapps.frost.injectors.JsBuilder
import com.pitchedapps.frost.injectors.jsInject
import com.pitchedapps.frost.utils.L
import io.reactivex.schedulers.Schedulers
import io.reactivex.subjects.PublishSubject
import org.jsoup.Jsoup
import org.jsoup.nodes.TextNode
import java.util.concurrent.TimeUnit
@SuppressLint("ViewConstructor")
/**
* Created by Allan Wang on 2017-06-25.
*
* A bare bone search view meant solely to extract data from the web
* This should be hidden
*/
class FrostWebViewSearch(context: Context, val contract: SearchContract) : WebView(context) {
val searchSubject = PublishSubject.create<String>()
init {
// gone()
setupWebview()
}
@SuppressLint("SetJavaScriptEnabled")
fun setupWebview() {
settings.javaScriptEnabled = true
settings.userAgentString = USER_AGENT_BASIC
setLayerType(View.LAYER_TYPE_HARDWARE, null)
webViewClient = FrostWebViewClientSearch()
addJavascriptInterface(SearchJSI(), "Frost")
searchSubject.debounce(200, TimeUnit.MILLISECONDS).subscribeOn(Schedulers.newThread())
.map {
Jsoup.parse(it).select("a:not([rel*='keywords(']):not([href=#])[rel]").map {
element ->
// L.d("Search element ${element.text()} ${element.textNodes().size} ${element.attr("href")}")
Pair(element.textNodes(), element.attr("href"))
}.filter { it.first.isNotEmpty() }
}
.subscribe {
content: List<Pair<List<TextNode>, String>> ->
content.forEach {
// L.e("Search result ${it.second}")
}
contract.emitSearchResponse()
}
reload()
Handler().postDelayed({
query("hi")
}, 5000)
}
override fun reload() {
super.loadUrl(FbTab.SEARCH.url)
}
fun query(input: String) {
JsBuilder().js("var input=document.getElementById('main-search-input');input.click(),input.value='$input';").build().inject(this) {
L.d("Searching for $input")
}
}
/**
* Created by Allan Wang on 2017-05-31.
*
* Barebones client that does what [FrostWebViewSearch] needs
*/
inner class FrostWebViewClientSearch : WebViewClient() {
override fun onPageFinished(view: WebView, url: String) {
super.onPageFinished(view, url)
L.i("Search Page finished $url")
view.jsInject(JsAssets.SEARCH)
}
}
inner class SearchJSI {
@JavascriptInterface
fun handleHtml(html: String) {
// L.d("Search received response $html")
searchSubject.onNext(html)
}
@JavascriptInterface
fun emit(flag: Int) {
L.d("Search flag")
when (flag) {
0 -> {
JsBuilder().js("document.getElementById('main-search-input').click()").build().inject(this@FrostWebViewSearch) {
L.d("Search click")
}
}
1 -> { //something is not found in the search view; this is effectively useless
L.d("Search subject error; reverting to full overlay")
searchSubject.onComplete()
contract.searchOverlayError()
}
}
}
}
interface SearchContract {
fun searchOverlayError()
//todo add args
fun emitSearchResponse()
}
}
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