From 50162ba9966e79dead3761af634d902b2ec73500 Mon Sep 17 00:00:00 2001
From: Wesley Kerfoot <378351+weskerfoot@users.noreply.github.com>
Date: Wed, 30 Sep 2020 21:46:35 -0400
Subject: [PATCH] fix unliking (#134)

---
 deletefb/tools/common.py | 17 ++++++++++------
 deletefb/tools/likes.py  | 42 +++++++++++++++++++++-------------------
 2 files changed, 33 insertions(+), 26 deletions(-)

diff --git a/deletefb/tools/common.py b/deletefb/tools/common.py
index fd5db1b..621e865 100644
--- a/deletefb/tools/common.py
+++ b/deletefb/tools/common.py
@@ -20,13 +20,20 @@ SELENIUM_EXCEPTIONS = (
     TimeoutException
 )
 
-
 def click_button(driver, el):
     """
     Click a button using Javascript
     """
     driver.execute_script("arguments[0].click();", el)
 
+def scroll_until_element_exists(driver, xpath_expr):
+    while True:
+        driver.execute_script("window.scrollTo(0, document.body.scrollHeight)")
+        try:
+            element = driver.find_element_by_xpath(xpath_expr)
+        except SELENIUM_EXCEPTIONS:
+            continue
+        break
 
 def scroll_to(driver, el):
     """
@@ -37,7 +44,6 @@ def scroll_to(driver, el):
     except SELENIUM_EXCEPTIONS:
         return
 
-
 def logger(name):
     """
     Args:
@@ -57,12 +63,11 @@ def logger(name):
         logging.config.dictConfig(config["logging"])
     return logging.getLogger(name)
 
-
-def wait_xpath(driver, expr):
+def wait_xpath(driver, expr, timeout=20):
     """
-    Takes an XPath expression, and waits at most 20 seconds until it exists
+    Takes an XPath expression, and waits at most `timeout` seconds until it exists
     """
-    wait = WebDriverWait(driver, 20)
+    wait = WebDriverWait(driver, timeout)
     try:
         wait.until(EC.presence_of_element_located((By.XPATH, expr)))
     except SELENIUM_EXCEPTIONS:
diff --git a/deletefb/tools/likes.py b/deletefb/tools/likes.py
index 091a144..a90f44f 100644
--- a/deletefb/tools/likes.py
+++ b/deletefb/tools/likes.py
@@ -1,6 +1,6 @@
 from .archive import archiver
 from ..types import Page
-from .common import SELENIUM_EXCEPTIONS, logger, click_button
+from .common import SELENIUM_EXCEPTIONS, logger, click_button, wait_xpath, force_mobile, scroll_to, scroll_until_element_exists
 from selenium.webdriver.common.by import By
 from selenium.webdriver.support import expected_conditions as EC
 from selenium.webdriver.support.ui import WebDriverWait
@@ -18,17 +18,25 @@ def load_likes(driver, profile_url):
         None
     """
 
-    driver.get("{0}/likes_all".format(profile_url))
+    likes_link_xpath = "//div[normalize-space(text())='Likes']/../..//a[contains(@href, 'app_section')]"
 
-    wait = WebDriverWait(driver, 20)
+    all_likes_link_xpath = "//div[normalize-space(text())='All Likes']/../../../..//a[contains(@href, 'app_collection')]"
 
-    try:
-        wait.until(
-            EC.presence_of_element_located((By.CSS_SELECTOR, ".PageLikeButton"))
-        )
-    except SELENIUM_EXCEPTIONS:
-        LOG.exception("Traceback of load_likes")
-        return
+    driver.get(force_mobile("{0}/about".format(profile_url)))
+
+    scroll_until_element_exists(driver, "//div[text()='Likes']")
+
+    likes_link_el = driver.find_element_by_xpath(likes_link_xpath)
+
+    driver.get(likes_link_el.get_attribute("href"))
+
+    wait_xpath(driver, all_likes_link_xpath)
+
+    all_likes_link_el = driver.find_element_by_xpath(all_likes_link_xpath)
+
+    all_likes_link = all_likes_link_el.get_attribute("href")
+
+    driver.get(all_likes_link)
 
 def get_page_links(driver):
     """
@@ -39,8 +47,7 @@ def get_page_links(driver):
     Returns:
         List of URLs to pages
     """
-    pages = driver.find_elements_by_xpath("//li//div/div/a[contains(@class, 'lfloat')]")
-
+    pages = driver.find_elements_by_xpath("//header/..//a")
     return [page.get_attribute("href").replace("www", "mobile") for page in pages]
 
 def unlike_page(driver, url, archive=None):
@@ -60,7 +67,7 @@ def unlike_page(driver, url, archive=None):
 
     print("Unliking {0}".format(url))
 
-    wait = WebDriverWait(driver, 20)
+    wait = WebDriverWait(driver, 5)
 
     try:
         wait.until(
@@ -70,19 +77,14 @@ def unlike_page(driver, url, archive=None):
         # Something went wrong with this page, so skip it
         return
 
-    button = driver.find_element_by_xpath("//*[text()='Liked']")
-
-    # Click the "Liked" button to open up "Unlike"
-    click_button(driver, button)
+    driver.find_element_by_xpath("//*[text()='Liked']/../../../..").click()
 
     wait.until(
         EC.presence_of_element_located((By.XPATH, "//*[text()='Unlike']"))
     )
 
     # There should be an "Unlike" button now, click it
-    unlike_button = driver.find_element_by_xpath("//*[text()='Unlike']/..")
-
-    click_button(driver, unlike_button)
+    driver.find_element_by_xpath("//*[text()='Unlike']/..").click()
 
     if archive:
         archive(Page(name=url))