GraphQL Cron Job (#182)

* try running python script

* try to fix yml syntax error

* attempt 3

* run difficulty update script

Author: leo-step

Diff for: .github/workflows/run-python.yml

@@ -0,0 +1,18 @@
+name: run-python
+
+on: workflow_dispatch
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-python@v4
+        with:
+          python-version: '3.x'
+          architecture: 'x64'
+      - run: |
+          python -m pip install --upgrade pip
+          pip install requests
+      - run: |
+          python cron/difficulty.py

Diff for: .gitignore

@@ -22,3 +22,5 @@
 npm-debug.log*
 yarn-debug.log*
 yarn-error.log*
+
+__pycache__

Diff for: cron/difficulty.py

@@ -0,0 +1,27 @@
+import requests
+from urllib.parse import urlparse
+from questions import questions
+
+query = '''query questionData($titleSlug: String!) {
+  question(titleSlug: $titleSlug) {
+    difficulty
+  }
+}
+'''
+
+for question in questions:
+    p = urlparse(question["url"])
+    title_slug = p.path.rstrip('/').split('/')[-1]
+    our_difficulty = question["difficulty"]
+    variables = {"titleSlug": title_slug}
+
+    response = requests.post("https://leetcode.com/graphql",
+        json={"query": query, "variables": variables}
+    )
+
+    their_difficulty = response.json()["data"]["question"]["difficulty"]
+
+    if their_difficulty != our_difficulty:
+        print(f'{question["name"]}: {our_difficulty} -> {their_difficulty}')
+
+print("Finished checking all questions")