Additional filter for commented issues and PRs

GH search API unable to identify if the issues and PRs were updated by
the user's comment. To make it reliable, one needs to search the
comments for the entity after the `since` date, sort them by created_at
field, and check if the comments in the given interval are created by
the user.

did/plugins/github.py

@@ -27,7 +27,7 @@
 
 import requests
 
-from did.base import Config, ReportError, delta, get_token
+from did.base import Config, Date, ReportError, delta, get_token
 from did.stats import Stats, StatsGroup
 from did.utils import listed, log, pretty
 
@@ -57,45 +57,70 @@ def __init__(self, url, token):
 
     @staticmethod
     def until(until):
-        """Issue #362: until for GH should have - delta(day=1)"""
+        """ Issue #362: until for GH should have - delta(day=1) """
         return until - 1
 
+    @staticmethod
+    def request_data(url, headers):
+        """ Fetch the URL from GitHub API and deserialize it to JSON """
+        log.debug(f"GitHub URL: {url}")
+        try:
+            response = requests.get(url, headers=headers)
+            log.debug(f"Response headers:\n{response.headers}")
+        except requests.exceptions.RequestException as error:
+            log.debug(error)
+            raise ReportError(f"GitHub failed to request URL {url}.")
+
+        # Check if credentials are valid
+        log.debug(f"GitHub status code: {response.status_code}")
+        if response.status_code == 401:
+            raise ReportError(
+                "Defined token is not valid. "
+                "Either update it or remove it.")
+
+        # Parse fetched json data
+        try:
+            data = json.loads(response.text)
+        except requests.exceptions.JSONDecodeError as error:
+            log.debug(error)
+            raise ReportError(f"GitHub JSON failed: {response.text}.")
+        if data.get("message", "").startswith("API rate limit exceeded"):
+            raise ReportError(
+                "GitHub API rate limit exceeded. "
+                "Consider creating an access token.")
+        return data, response
+
+    def has_comments(self, issue_data, user, since, until):
+        url = issue_data["comments_url"]
+        if not url:
+            return False
+
+        url = f"{url}?per_page={PER_PAGE}&sort=created&since={since}"
+
+        while True:
+            comments, response = self.request_data(url, self.headers)
+            for comment in comments:
+                date = Date(comment["created_at"].split("T", 1)[0])
+                if date.date > until:
+                    return False
+                if user == comment["user"]["login"]:
+                    return True
+            # Update url to the next page, break if no next page
+            # provided
+            if 'next' in response.links:
+                url = response.links['next']['url']
+            else:
+                break
+        return False
+
     def search(self, query):
         """ Perform GitHub query """
         result = []
         url = self.url + "/" + query + f"&per_page={PER_PAGE}"
 
         while True:
-            # Fetch the query
-            log.debug(f"GitHub query: {url}")
-            try:
-                response = requests.get(url, headers=self.headers)
-                log.debug(f"Response headers:\n{response.headers}")
-            except requests.exceptions.RequestException as error:
-                log.debug(error)
-                raise ReportError(f"GitHub search on {self.url} failed.")
-
-            # Check if credentials are valid
-            log.debug(f"GitHub status code: {response.status_code}")
-            if response.status_code == 401:
-                raise ReportError(
-                    "Defined token is not valid. "
-                    "Either update it or remove it.")
-
-            # Parse fetched json data
-            try:
-                data = json.loads(response.text)["items"]
-                result.extend(data)
-            except KeyError:
-                if json.loads(response.text)["message"].startswith(
-                        "API rate limit exceeded"):
-                    raise ReportError(
-                        "GitHub API rate limit exceeded. "
-                        "Consider creating an access token.")
-            except requests.exceptions.JSONDecodeError as error:
-                log.debug(error)
-                raise ReportError(f"GitHub JSON failed: {response.text}.")
-
+            data, response = self.request_data(url, self.headers)
+            result.extend(data["items"])
             # Update url to the next page, break if no next page
             # provided
             if 'next' in response.links:
@@ -190,7 +215,9 @@ def fetch(self):
             user, since, until)
         query += "+type:issue"
         self.stats = [
-            Issue(issue, self.parent) for issue in self.parent.github.search(query)]
+            Issue(issue, self.parent) for issue in self.parent.github.search(query)
+            # Additional filter for the comments by user in the interval
+            if self.parent.github.has_comments(issue, user, since, until)]
 
 
 class PullRequestsCreated(Stats):
@@ -219,7 +246,9 @@ def fetch(self):
             self.user.login, self.options.since, until)
         query += "+type:pr"
         self.stats = [
-            Issue(issue, self.parent) for issue in self.parent.github.search(query)]
+            Issue(issue, self.parent) for issue in self.parent.github.search(query)
+            # Additional filter for the comments by user in the interval
+            if self.parent.github.has_comments(issue, user, since, until)]
 
 
 class PullRequestsClosed(Stats):