init commit.

rolando solution/assignment2CST438.py

@@ -0,0 +1,169 @@
+# all users and posts
+users = []
+posts = []
+
+# class hloding user info
+class User:
+  def __init__(self, username, displayName, state):
+    self.username = username
+    self.displayName = displayName
+    self.state = state
+    self.friends = []
+
+  def addFriends(self, friends):
+    self.friends.extend(friends)
+
+  def __str__(self):
+    return f'username: {self.username}\ndisplayName: {self.displayName}\nfriends: {self.friends}'
+
+#class holding post info
+class Post:
+  def __init__(self, postId, username, visibility):
+    self.postId = postId
+    self.username = username
+    self.visibility = visibility
+
+  def __str__(self):
+    return f'post id: {self.postId}\nusername: {self.username}\nvisibility: {self.visibility}'
+
+def processUsers(file):
+  usersInfo = file.readlines()
+  for userInfo in usersInfo:
+    # strip file line and split user info by ;
+    userInfo.strip()
+    userSplit = userInfo.split(';')
+
+    # add user basic info
+    user = User(userSplit[0], userSplit[1], userSplit[2])
+    users.append(user)
+
+    # adds friends to user
+    friendSection = userSplit[3].strip('[]\n')
+    friends = friendSection.split(',')
+    user.addFriends(friends)
+
+  return users
+
+def processPosts(file):
+  postsInfo = file.readlines()
+  for postInfo in postsInfo:
+    # strip line and add to post object
+    postInfo.strip()
+    postSplit = postInfo.split(';')
+    post = Post(postSplit[0], postSplit[1], postSplit[2].strip('\n'))
+    posts.append(post)
+
+  return posts
+
+# loading data from path
+def loadInputData():
+  try:
+    userPath = input('Enter user information path: ')
+    postPath = input('Enter post information path: ')
+
+    userFile = open(userPath, 'r')
+    postFile = open(postPath, 'r')
+    users = processUsers(userFile)
+    posts = processPosts(postFile)
+  except:
+    print('could not find file')
+    loadInputData()
+
+# get user by username
+def getUser(username):
+  for user in users:
+    if user.username == username:
+      return user
+
+  return None
+
+def canViewPost(post, username):
+  if post.visibility == 'friend':
+    user = getUser(post.username)
+    if post.username == username:
+      return True
+
+    if username in user.friends:
+      return True
+
+    # not in friends list
+    return False
+  else:
+    return True
+
+# get visibility of post with post id and username
+def getVisibility():
+  id = input('Enter post id: ')
+  username = input('Enter username: ')
+
+  for post in posts:
+    if post.postId == id:
+      if canViewPost(post, username):
+        print('Access Permitted\n')
+        break
+      else:
+        print('Access Denied\n')
+        break
+
+def retrievePosts():
+  username = input('Enter username: ')
+  viewablePosts = []
+
+  # getting all post user can see
+  for post in posts:
+    if canViewPost(post, username):
+      viewablePosts.append(post.postId)
+
+  print(f'Viewable posts: {viewablePosts}\n')
+
+# returns list of users with same state as parameter
+def getUsersByState(state):
+  hits = []
+  for user in users:
+    if user.state == state:
+      hits.append(user.displayName)
+
+  return hits
+
+def searchByLocation():
+  state = input('Enter State: ')
+  usersInState = getUsersByState(state)
+  print(f'Users in {state}: {usersInState}\n')
+
+# main program loop
+def runProgram():
+  while True:
+    print('Assignment 2')
+    print('1.\tLoad Input Data.')
+    print('2.\tCheck Visibility.')
+    print('3.\tRetrieve Posts.')
+    print('4.\tSearch Users By Location.')
+    print('5.\tExit.')
+    try:
+      selection = int(input("Enter option number(1-5): "))
+    except:
+      print('Not a number!\n')
+      continue
+
+    match selection:
+      case 1:
+        loadInputData()
+        print('Data Loaded!\n')
+      case 2:
+        getVisibility() 
+      case 3:
+        retrievePosts()
+      case 4:
+        searchByLocation()
+      case 5:
+        print('Goodbye!\n')
+        break
+      case _:
+        print('Invalid input, try again.\n')
+
+
+def main():
+  runProgram()
+
+main()
+

rolando solution/post-info.txt

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+post1112;goldenlover1;friend
+post2123;whiskerwatcher;friend
+post3298;petpal4ever;public

rolando solution/user-info.txt

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+goldenlover1;Jane Doe;CA;[petpal4ever,whiskerwatcher]
+whiskerwatcher;John Doe;NY;[goldenlover1]
+petpal4ever;Great Name;WV;[goldenlover1]