refactor: enable users to pass their imdb user id as env var

.env.example

@@ -13,6 +13,10 @@ IMDB_COOKIE_UBID_MAIN=133-3657396-5532224
 # example: ls517879007,ls084017844,ls093412639
 # if value equals to `all` it will auto sync all your lists
 IMDB_LIST_IDS=all
+# IMDb user id can be found within the URL when you have your profile/watchlist/ratings/lists opened (need to be loggen in)
+# example: ur90652269
+# if value equals to `scrape` or you omit adding it, your user id will be scraped from the web
+IMDB_USER_ID=scrape
 # Trakt access token for your API app (info in the README file)
 TRAKT_ACCESS_TOKEN=b89d620b5ef4dcc72a20300fb5e5c0b207b6d42ff9095dd574311b46aca41024
 # Trakt client id of your API app (https://trakt.tv/oauth/applications/new)

pkg/providers/sync.go

@@ -24,7 +24,10 @@ func Sync() {
 }
 
 func (u *user) populateData(ic *imdb.Client, tc *trakt.Client) {
-	ic.Config.UserId = ic.UserIdScrape()
+	ic.Config.UserId = os.Getenv("IMDB_USER_ID")
+	if ic.Config.UserId == "" || ic.Config.UserId == "scrape" {
+		ic.Config.UserId = ic.UserIdScrape()
+	}
 	ic.Config.WatchlistId = ic.WatchlistIdScrape()
 	tc.Config.UserId = tc.UserIdGet()
 	imdbListIdsString := os.Getenv(imdb.ListIdsKey)