add-doctor command accepts an invalid email format

[Runus01]

Email must contain at least one dot in the domain part of the email. E.g. johnd@example.com is a valid email but johnd@examplecom is invalid as there is no dot after @.

The app currently accepts email without a dot after the '@' symbol. This could lead to erroneous data being stored in the app which could affect the user experience. In the medical industry, especially, it would be crucial for the database to contain accurate doctor data.

[soc-se-bot]

Team's Response

• Agree that email validation should be improved
• Need to check that the domain has a "."

The 'Original' Bug

[The team marked this bug as a duplicate of the following bug]

Able to add invalid email

I am able to add emails of invalid domains e.g. user@domaincom under contact 15.

Since you have incorporated error handling for emails, we should not miss out on all cases as invalid emails due to a typo of missing '.' can happen when receptionists are tired and the contact book should flag it out.

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_{[original: nus-cs2103-AY2425S1/pe-interim#2669] [original labels: severity.Low type.FunctionalityBug]}

Their Response to the 'Original' Bug

[This is the team's response to the above 'original' bug]

• Agree that email validation should be improved
• Need to check that the domain has a "."

Items for the Tester to Verify

❓ Issue duplicate status

Team chose to mark this issue as a duplicate of another issue (as explained in the Team's response above)

• I disagree

Reason for disagreement: [replace this with your explanation]

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❓ Issue type

Team chose [type.FunctionalityBug]
Originally [type.FeatureFlaw]

• I disagree

Reason for disagreement: [replace this with your explanation]

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