[任務] /poll：add new option "voteLimit" indicates that how many votes can a user have.

[Johnny850807]

continue from: #98

Slash Command Quest

任務描述

Fulfill a feature in /poll command：voteLimit option

1. the option is not required, if the argument is not present, then there's no limit on the user's votes; if the option is present, that says, voteLimit=3, then every user can only vote on 0~3 polling options.

測試步驟

1. /poll time=20 timeUnit=SECONDS voteLimit=3 question=A options=1,2,3,4,5,6,7
   should see the polling session created with a message shown

2. make a user vote on 1, 2, 3 polling options

3. make the user vote on the fourth option, 4
   Bot should reply that "The maximum number of options you can vote is 3. "

教學

1. Modification of PollCommandListener class: You'll need to include a new variable voteLimit in the class. This will be used to store the maximum number of votes a user can have.

2. Parsing voteLimit from options: Update the parsePollingSettingFromOptions method to check for the presence of voteLimit. If the option is found, parse its value and store it in the PollingSetting object.

3. Checking vote count in onMessageReactionAdd hook: Here, verify if voteLimit is defined in PollingSetting. If it is, cross-check it against the user's current vote count.

4. Handling exceeded vote limit: If the user's vote count surpasses voteLimit, utilize the reply(...).complete() function to notify the user about their prohibited action. After this, you should immediately exit the method to prevent any further processing.