package com.pitchedapps.frost.facebook

/**
 * Created by Allan Wang on 21/12/17.
 *
 * Collection of regex matchers
 * Input text must be properly unescaped
 *
 * See [StringEscapeUtils]
 */

/**
 * Matches the fb_dtsg component of a page containing it as a hidden value
 */
val FB_DTSG_MATCHER: Regex by lazy { Regex("name=\"fb_dtsg\" value=\"(.*?)\"") }
val FB_REV_MATCHER: Regex by lazy { Regex("\"app_version\":\"(.*?)\"") }

/**
 * Matches user id from cookie
 */
val FB_USER_MATCHER: Regex = Regex("c_user=([0-9]*);")

val FB_EPOCH_MATCHER: Regex = Regex(":([0-9]+)")
val FB_NOTIF_ID_MATCHER: Regex = Regex("notif_([0-9]+)")
val FB_MESSAGE_NOTIF_ID_MATCHER: Regex = Regex("(?:thread|user)_fbid_([0-9]+)")
val FB_CSS_URL_MATCHER: Regex = Regex("url\\([\"|']?(.*?)[\"|']?\\)")
val FB_JSON_URL_MATCHER: Regex = Regex("\"(http.*?)\"")
val FB_IMAGE_ID_MATCHER: Regex = Regex("fbcdn.*?/[0-9]+_([0-9]+)_")
val FB_REDIRECT_URL_MATCHER: Regex = Regex("url=(.*?fbcdn.*?)\"")

operator fun MatchResult?.get(groupIndex: Int) = this?.groupValues?.get(groupIndex)