151 lines
10 KiB
Markdown
151 lines
10 KiB
Markdown
# Homework 5 — Design and Implementation of a Simple Tinder
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In this assignment you will develop a simple online dating application called New York Date. Your program will mimic some of the features provided by Tinder. Please read the entire handout before starting to code the assignment.
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## Learning Objectives
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- Get familiar with a commonly used data structure - linked lists.
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- Practice creating and manipulating linked lists without using the std::list library.
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- Practice overloading the output operator (<<).
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## Background
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Tinder allows users to view other users' profiles, and users can filter whom they want to view, based on age, gender, and distance.
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As users browse another user's profile, users can swipe right or swipe left. Swiping right means like or accept someone, whereas swiping left means reject someone. When two users both express interest by swiping right, the app establishes a match between them, allowing them to initiate conversations and interact further. After the match is established, users have the option to unmatch their match if they are no longer interested or for other reasons.
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## Input File
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The input file [users.txt](users.txt) has a format like this:
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```console
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Valentina 60 Female 400-404-7221 Historian University_of_California_Santa_Cruz 40.5605 -71.3767 true 64 70 20 Both null
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Emma 33 Female 768-906-2374 Environmental_Lawyer Undisclosed 41.1516 -72.3557 true 55 56 200 Both 497-618-2463_490-951-6635_846-731-3677_410-789-7985_867-566-5583_307-413-2859_533-814-7851_254-263-3774_231-183-5784_697-329-9174_499-888-6951_683-920-9932_571-110-8223_229-528-6616_538-763-4821_837-714-1770_488-798-8805_707-275-5554_674-384-5525_414-795-1819_863-945-8380_670-361-6253_482-570-4529_225-346-2181_549-298-1822_291-587-6600_573-300-5580_658-390-5370_497-101-7210_896-357-6566_523-138-8228_993-183-9670_530-768-7718_526-617-9270_269-207-8287_603-321-5435_360-585-1792
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Ying 49 Female 915-331-9244 Dental_Hygienist University_of_California_San_Francisco 41.3034 -82.9104 false 34 67 130 Male 958-816-3806_308-444-7702_308-541-7111_507-714-9305_385-270-1090_250-788-4291_677-308-6355_881-697-3822_905-898-3311_611-824-8864_501-410-2118_610-792-6064_596-153-6105_448-260-7015_238-741-8503_286-193-2527_282-248-8824_795-473-2539_648-490-2499_420-101-2920_968-934-9116_438-190-7769_742-997-6492_665-463-1835_796-466-7853_936-640-5013_834-215-8272_427-102-8071_904-238-8639_468-417-2351_906-323-7943_376-392-1048_886-668-1900_226-994-7506_353-314-8714_490-667-5163_904-520-6343_655-929-9908_453-793-9907_810-935-6637_973-561-9938_853-209-5188_758-974-6071_525-530-3280_914-397-5106_794-665-6490_319-267-2685_707-955-6522_879-321-7310_542-699-7018_390-327-1180_429-397-5047_302-504-2335_571-680-2678_238-606-6721_364-700-9236_397-602-7961_265-792-2797_270-215-3495_610-869-3662_630-852-3331_557-491-2662_693-105-1354_203-355-2685_451-769-3688_911-448-2088_215-948-3529_918-914-7595_848-800-6209_943-549-2858_934-522-8699_323-433-8723_721-300-4701_570-461-9529_406-833-3773_209-236-5065_578-378-4085_267-347-1617_971-341-5566_658-961-8402_471-649-6404_274-720-5634_463-829-3746_438-537-5326_476-564-8440_690-850-9629_648-277-2190_706-915-4858_208-986-5038_997-612-4451_297-112-7705_950-728-1218_638-652-4682_268-254-2285_477-526-1558_508-567-5195_792-728-5852_990-421-1071_240-579-1423_578-968-2451_556-303-7311_946-494-5912_740-479-4442_287-316-1874_740-252-5294_336-232-1361_405-721-8046_767-499-3573_779-226-9306_444-374-1591_838-990-7979_442-641-1294_506-321-8211_616-544-8480_427-766-5141_460-457-5236_269-992-7860_799-222-8037_352-351-2695_448-129-2874_840-645-3483_510-417-7474_322-621-9689_717-617-3016_574-316-1063_216-447-4000_845-251-9541_728-524-6049_641-298-2693_743-587-2860_266-893-6626_578-331-6389_867-298-5412_624-620-8608_509-901-6174_767-364-4936
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Carlos 59 Male 599-886-3816 Firefighter University_of_South_Carolina 43.7929 -73.747 true 69 75 200 Female null
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```
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The above is the first 4 lines of the [users.txt](users.txt) file. It has 14 fields, separated by a space. And these 14 fields are:
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- User's name
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- User's age
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- User's gender
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- User's phone number
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- User's profession: A user can choose not to disclose their profession, and if so, this field will be *Undisclosed*.
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- User's school: A user can choose not to disclose his/her school, and if so, this field will be *Undisclosed*.
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- User's current latitude
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- User's current longitude
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- Is Premium User or not: this field will be either *true* or *false*.
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- User's preference on age: minimum age
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- User's preference on age: maximum age
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- User's preference on max distance (in miles). **Note**: this is an integer number.
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- User's preference on interested gender: this field can be one of these three: *Male*, *Female*, *Both*.
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- Users whom this user liked (i.e., users whom this user has swiped right on): here users are represented by phone numbers. If this user does not like anyone, then this field will be displayed as *null*. If this user liked multiple users, the phone numbers of these users will be displayed in this field, and these phone numbers are separated by an underscore.
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In case you are not familiar with these dating apps or have not used Tinder, two randomly selected Tinder pictures (downloaded from the Internet, sorry Samantha! Hope you have found your true love!) are given below.
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These two images will give you a better understanding on some of the above fields.
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## Specification
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Your program will support four commands.
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1. show profiles match with a user's preference.
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2. show all matches to a user.
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3. show all users who swiped right on this user - this feature is only available to premium users.
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4. unmatch someone.
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<!--5. delete account.-->
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More details about each of these four commands are given below. For all four commands, *users.txt* represents the input file, and *output.txt* represents the output file, please do not hardcode the file names into your program, as the actual input/output file may have a different name. You should just use the *argv[]* array to retrieve the name of the input and the output file.
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### Show Profiles
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When the user (here, *phoneNumber* is this user's phone number) runs this command:
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```console
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nydate.exe users.txt output.txt phoneNumber profile
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```
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your program should show all profiles which match with this user's preference on age, gender, and distance. All these profiles should be printed into the output file. See [profile.txt](profile.txt) for the format of this file. In the case where there are no users match with this user's preference, your program should just print this one message to the output file:
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```console
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There are no users matching with your preference at this moment.
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```
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### Show Matches
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When the user (here, *phoneNumber* is this user's phone number) runs this command:
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```console
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nydate.exe users.txt output.txt phoneNumber match
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```
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your program should show profiles of all users who match with this user. All these profiles should be printed into the output file. The definition of match is when two users both express interest by swiping right on each other.
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See [match.txt](match.txt) for the format of the output file. In the case where this user has no matches at all, you should just print this one message to the output file:
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```console
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You do not have any matches at this moment.
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```
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### Show All Users Who Swiped Right on This User
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When the user (here, *phoneNumber* is this user's phone number) runs this command:
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```console
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nydate.exe users.txt output.txt phoneNumber like
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```
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your program should show profiles of all users who liked this user. All these profiles should be printed into the output file. The definition of like is when a user swipes right on another user. Just like on Tinder, this feature is only available to premium users who pays a monthly subscription fee. Thus, if this user is not a premium user, your program should just print this message to the output file:
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```console
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Only premium users can view who liked you.
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```
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When the user is indeed a premium user, see [like.txt](like.txt) for the format of the output file. In the case where this user has not received any likes at all, which is really sad, your program should just print this one message to the output file:
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```console
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You have not received any likes so far.
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```
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### Unmatch Someone
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According to [Tinder's guide](https://www.help.tinder.com/hc/en-us/articles/115003360106-Unmatching-and-reporting):"When you unmatch someone, they'll disappear from your match list and you'll disappear from theirs."
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When the user (here, *phoneNumber* is this user's phone number and *phoneNumberOther* represents the other user whom this user wants to unmatch with) runs this command:
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```console
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nydate.exe users.txt output.txt phoneNumber unmatch phoneNumberOther
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```
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your program should first show profiles of all users who match with this user; and then show profiles of all users who match with this other user. All these profiles should be printed into the output file. Clearly, these two users should not be considered as a match anymore.
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See [unmatch.txt](unmatch.txt) for the format of the output file.
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<!--### Delete Account
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Users can delete their accounts.
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When the user (here, *phoneNumber* is this user's phone number) runs this command:
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```console
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nydate.exe input.txt output.txt phoneNumber delete
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```
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-->
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## Program Requirements & Submission Details
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In this assignment, you are required to create linked lists, **but you are not allowed to use the std::list library. In addition, you are NOT allowed to use std::vector, or any data structures we have not learned so far.**
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Use good coding style when you design and implement your program. Organize your program into functions:
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don’t put all the code in main! Be sure to read the [Homework Policies](https://www.cs.rpi.edu/academics/courses/fall23/csci1200/homework_policies.php) as you put the finishing touches on your solution. Be sure to make up new test cases to fully debug your program and don’t forget
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to comment your code! Use the provided template [README.txt](./README.txt) file for notes you want the grader to read.
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You must do this assignment on your own, as described in the [Collaboration Policy & Academic Integrity](https://www.cs.rpi.edu/academics/courses/fall23/csci1200/academic_integrity.php) page. If you did discuss the problem or error messages, etc. with anyone, please list their names in your
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README.txt file.
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**Due Date**: 10/12/2023, Thursday, 23:59pm.
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