package com.pitchedapps.frost.utils

import android.annotation.SuppressLint
import android.app.Activity
import android.app.ActivityOptions
import android.content.Context
import android.content.Intent
import android.graphics.Color
import android.graphics.drawable.ColorDrawable
import android.net.Uri
import android.support.annotation.StringRes
import android.support.design.internal.SnackbarContentLayout
import android.support.design.widget.Snackbar
import android.support.v4.content.FileProvider
import android.support.v7.widget.Toolbar
import android.view.View
import android.widget.FrameLayout
import android.widget.TextView
import ca.allanwang.kau.email.EmailBuilder
import ca.allanwang.kau.email.sendEmail
import ca.allanwang.kau.mediapicker.createMediaFile
import ca.allanwang.kau.mediapicker.createPrivateMediaFile
import ca.allanwang.kau.utils.*
import ca.allanwang.kau.xml.showChangelog
import com.afollestad.materialdialogs.MaterialDialog
import com.pitchedapps.frost.BuildConfig
import com.pitchedapps.frost.R
import com.pitchedapps.frost.activities.*
import com.pitchedapps.frost.dbflow.CookieModel
import com.pitchedapps.frost.facebook.*
import com.pitchedapps.frost.facebook.FbUrlFormatter.Companion.VIDEO_REDIRECT
import org.apache.commons.text.StringEscapeUtils
import org.jsoup.Jsoup
import org.jsoup.nodes.Element
import java.io.File
import java.io.IOException
import java.util.*

/**
 * Created by Allan Wang on 2017-06-03.
 */
const val EXTRA_COOKIES = "extra_cookies"
const val ARG_URL = "arg_url"
const val ARG_USER_ID = "arg_user_id"
const val ARG_IMAGE_URL = "arg_image_url"
const val ARG_TEXT = "arg_text"
const val ARG_COOKIE = "arg_cookie"

inline fun <reified T : Activity> Context.launchNewTask(cookieList: ArrayList<CookieModel> = arrayListOf(), clearStack: Boolean = false) {
    startActivity<T>(clearStack, intentBuilder = {
        putParcelableArrayListExtra(EXTRA_COOKIES, cookieList)
    })
}

fun Context.launchLogin(cookieList: ArrayList<CookieModel>, clearStack: Boolean = true) {
    if (cookieList.isNotEmpty()) launchNewTask<SelectorActivity>(cookieList, clearStack)
    else launchNewTask<LoginActivity>(clearStack = clearStack)
}

fun Activity.cookies(): ArrayList<CookieModel> {
    return intent?.getParcelableArrayListExtra<CookieModel>(EXTRA_COOKIES) ?: arrayListOf()
}

/**
 * Launches the given url in a new overlay (if it already isn't in an overlay)
 * Note that most requests may need to first check if the url can be launched as an overlay
 * See [requestWebOverlay] to verify the launch
 */
private inline fun <reified T : WebOverlayActivityBase> Context.launchWebOverlayImpl(url: String) {
    val argUrl = url.formattedFbUrl
    L.v { "Launch received: $url\nLaunch web overlay: $argUrl" }
    if (argUrl.isFacebookUrl && argUrl.contains("/logout.php"))
        FbCookie.logout(this)
    else if (!(Prefs.linksInDefaultApp && resolveActivityForUri(Uri.parse(argUrl))))
        startActivity<T>(false, intentBuilder = {
            putExtra(ARG_URL, argUrl)
        })
}

fun Context.launchWebOverlay(url: String) = launchWebOverlayImpl<WebOverlayActivity>(url)

fun Context.launchWebOverlayBasic(url: String) = launchWebOverlayImpl<WebOverlayBasicActivity>(url)

private fun Context.fadeBundle() = ActivityOptions.makeCustomAnimation(this,
        android.R.anim.fade_in, android.R.anim.fade_out).toBundle()

fun Context.launchImageActivity(imageUrl: String, text: String? = null, cookie: String? = null) {
    startActivity<ImageActivity>(intentBuilder = {
        putExtras(fadeBundle())
        putExtra(ARG_IMAGE_URL, imageUrl)
        putExtra(ARG_TEXT, text)
        putExtra(ARG_COOKIE, cookie)
    })
}

fun Activity.launchTabCustomizerActivity() {
    startActivityForResult<TabCustomizerActivity>(SettingsActivity.ACTIVITY_REQUEST_TABS, bundleBuilder = {
        with(fadeBundle())
    })
}

fun WebOverlayActivity.url(): String {
    return intent.getStringExtra(ARG_URL) ?: FbItem.FEED.url
}

fun Context.materialDialogThemed(action: MaterialDialog.Builder.() -> Unit): MaterialDialog {
    val builder = MaterialDialog.Builder(this).theme()
    builder.action()
    return builder.show()
}

fun MaterialDialog.Builder.theme(): MaterialDialog.Builder {
    val dimmerTextColor = Prefs.textColor.adjustAlpha(0.8f)
    titleColor(Prefs.textColor)
    contentColor(dimmerTextColor)
    widgetColor(dimmerTextColor)
    backgroundColor(Prefs.bgColor.lighten(0.1f).withMinAlpha(200))
    positiveColor(Prefs.textColor)
    negativeColor(Prefs.textColor)
    neutralColor(Prefs.textColor)
    return this
}

fun Activity.setFrostTheme(forceTransparent: Boolean = false) {
    val isTransparent = (Color.alpha(Prefs.bgColor) != 255) || forceTransparent
    if (Prefs.bgColor.isColorDark)
        setTheme(if (isTransparent) R.style.FrostTheme_Transparent else R.style.FrostTheme)
    else
        setTheme(if (isTransparent) R.style.FrostTheme_Light_Transparent else R.style.FrostTheme_Light)
}

class ActivityThemeUtils {

    private var toolbar: Toolbar? = null
    var themeWindow = true
    private var texts = mutableListOf<TextView>()
    private var headers = mutableListOf<View>()
    private var backgrounds = mutableListOf<View>()

    fun toolbar(toolbar: Toolbar) {
        this.toolbar = toolbar
    }

    fun text(vararg views: TextView) {
        texts.addAll(views)
    }

    fun header(vararg views: View) {
        headers.addAll(views)
    }

    fun background(vararg views: View) {
        backgrounds.addAll(views)
    }

    fun theme(activity: Activity) {
        with(activity) {
            statusBarColor = Prefs.headerColor.darken(0.1f).withAlpha(255)
            if (Prefs.tintNavBar) navigationBarColor = Prefs.headerColor
            if (themeWindow) window.setBackgroundDrawable(ColorDrawable(Prefs.bgColor))
            toolbar?.setBackgroundColor(Prefs.headerColor)
            toolbar?.setTitleTextColor(Prefs.iconColor)
            toolbar?.overflowIcon?.setTint(Prefs.iconColor)
            texts.forEach { it.setTextColor(Prefs.textColor) }
            headers.forEach { it.setBackgroundColor(Prefs.headerColor) }
            backgrounds.forEach { it.setBackgroundColor(Prefs.bgColor) }
        }
    }
}

inline fun Activity.setFrostColors(builder: ActivityThemeUtils.() -> Unit) {
    val themer = ActivityThemeUtils()
    themer.builder()
    themer.theme(this)
}


fun frostEvent(name: String, vararg events: Pair<String, Any>) {
    // todo bind
    L.v { "Event: $name ${events.joinToString(", ")}" }
}

/**
 * Helper method to quietly keep track of throwable issues
 */
fun Throwable?.logFrostEvent(text: String) {
    val msg = if (this == null) text else "$text: $message"
    L.e { msg }
    frostEvent("Errors", "text" to text, "message" to (this?.message ?: "NA"))
}

fun Activity.frostSnackbar(@StringRes text: Int, builder: Snackbar.() -> Unit = {}) = snackbar(text, Snackbar.LENGTH_LONG, frostSnackbar(builder))

fun View.frostSnackbar(@StringRes text: Int, builder: Snackbar.() -> Unit = {}) = snackbar(text, Snackbar.LENGTH_LONG, frostSnackbar(builder))

@SuppressLint("RestrictedApi")
private inline fun frostSnackbar(crossinline builder: Snackbar.() -> Unit): Snackbar.() -> Unit = {
    builder()
    //hacky workaround, but it has proper checks and shouldn't crash
    ((view as? FrameLayout)?.getChildAt(0) as? SnackbarContentLayout)?.apply {
        messageView.setTextColor(Prefs.textColor)
        actionView.setTextColor(Prefs.accentColor)
        //only set if previous text colors are set
        view.setBackgroundColor(Prefs.bgColor.withAlpha(255).colorToForeground(0.1f))
    }
}

fun Activity.frostNavigationBar() {
    navigationBarColor = if (Prefs.tintNavBar) Prefs.headerColor else Color.BLACK
}

@Throws(IOException::class)
fun createMediaFile(extension: String) = createMediaFile("Frost", extension)

@Throws(IOException::class)
fun Context.createPrivateMediaFile(extension: String) = createPrivateMediaFile("Frost", extension)

/**
 * Tries to send the uri to the proper activity via an intent
 * returns [true] if activity is resolved, [false] otherwise
 * For safety, any uri that [isFacebookUrl] without [isExplicitIntent] will return [false]
 */
fun Context.resolveActivityForUri(uri: Uri): Boolean {
    val url = uri.toString()
    if (url.isFacebookUrl && !url.isExplicitIntent) return false
    val intent = Intent(Intent.ACTION_VIEW, uri)
    if (intent.resolveActivity(packageManager) == null) return false
    startActivity(intent)
    return true
}

/**
 * [true] if url contains [FACEBOOK_COM]
 */
inline val String?.isFacebookUrl
    get() = this != null && (contains(FACEBOOK_COM) || contains(FBCDN_NET))

/**
 * [true] if url is a video and can be accepted by VideoViewer
 */
inline val String.isVideoUrl
    get() = startsWith(VIDEO_REDIRECT) ||
            (startsWith("https://video-") && contains(FBCDN_NET))

/**
 * [true] if url directly leads to a usable image
 */
inline val String.isImageUrl: Boolean
    get() {
        return contains(FBCDN_NET) && (contains(".png") || contains(".jpg"))
    }

/**
 * [true] if url can be retrieved to get a direct image url
 */
inline val String.isIndirectImageUrl: Boolean
    get() {
        return contains("/photo/view_full_size/") && contains("fbid=")
    }

/**
 * [true] if url can be displayed in a different webview
 */
inline val String?.isIndependent: Boolean
    get() {
        if (this == null || length < 5) return false                // ignore short queries
        if (this[0] == '#' && !contains('/')) return false          // ignore element values
        if (startsWith("http") && !isFacebookUrl) return true       // ignore non facebook urls
        if (dependentSegments.any { contains(it) }) return false    // ignore known dependent segments
        return true
    }

val dependentSegments = arrayOf(
        "photoset_token", "direct_action_execute", "messages/?pageNum", "sharer.php",
        "events/permalink", "events/feed/watch",
        /**
         * Editing images
         */
        "/confirmation/?",
        /*
         * Facebook messages have the following cases for the tid query
         * mid* or id* for newer threads, which can be launched in new windows
         * or a hash for old threads, which must be loaded on old threads
         */
        "messages/read/?tid=id", "messages/read/?tid=mid"
)

inline val String?.isExplicitIntent
    get() = this != null && startsWith("intent://")

fun Context.frostChangelog() = showChangelog(R.xml.frost_changelog, Prefs.textColor) {
    theme()
}

fun Context.frostUriFromFile(file: File): Uri =
        FileProvider.getUriForFile(this,
                BuildConfig.APPLICATION_ID + ".provider",
                file)

inline fun Context.sendFrostEmail(@StringRes subjectId: Int, crossinline builder: EmailBuilder.() -> Unit) = sendFrostEmail(string(subjectId), builder)

inline fun Context.sendFrostEmail(subjectId: String, crossinline builder: EmailBuilder.() -> Unit) = sendEmail(string(R.string.dev_email), subjectId) {
    builder()
    addFrostDetails()
}

fun EmailBuilder.addFrostDetails() {
    addItem("Prev version", Prefs.prevVersionCode.toString())
    val proTag = "FO"
//    if (IS_FROST_PRO) "TY" else "FP"
    addItem("Random Frost ID", "${Prefs.frostId}-$proTag")
    addItem("Locale", Locale.getDefault().displayName)
}

fun frostJsoup(url: String) = frostJsoup(FbCookie.webCookie, url)

fun frostJsoup(cookie: String?, url: String) = Jsoup.connect(url).cookie(FACEBOOK_COM, cookie).userAgent(USER_AGENT_BASIC).get()!!

fun Element.first(vararg select: String): Element? {
    select.forEach {
        val e = select(it)
        if (e.size > 0) return e.first()
    }
    return null
}

fun File.createFreshFile(): Boolean {
    if (exists()) {
        if (!delete()) return false
    } else {
        val parent = parentFile
        if (!parent.exists() && !parent.mkdirs())
            return false
    }
    return createNewFile()
}

fun File.createFreshDir(): Boolean {
    if (exists() && !deleteRecursively())
        return false
    return mkdirs()
}

fun String.unescapeHtml(): String =
        StringEscapeUtils.unescapeXml(this)
                .replace("\\u003C", "<")
                .replace("\\\"", "\"")