Feedback form/SMS

[scy]

• Send a feedback token SMS both for Scheduled and for Instant Calls. The rationale is that even if you start the Direct Call sitting in front of your computer, you might close the tab or walk away. Or you might start it on your phone and lose track of the open tab.
• Feedback SMS are only sent if the connection to the Destination was successful, and the call with the Destination was longer than a configurable amount of seconds.
• The SMS will be sent a configurable number of seconds after the call ends.
• The SMS should include the name of the Destination you spoke with.
• The token in the link expires after a week (configurable). This gives you a lot of time to write your feedback, but not so much time that you’ve already forgotten everything anyway.
• Only one token per call.
• Once you’ve submitted feedback, the token is invalidated. You cannot give feedback twice using the same token, nor can you edit your feedback.
• The frontend can request information about a token. If the token has already been used, only this fact will be returned. If it has not, the Destination’s information is also returned. This allows the frontend to display the name & portrait, and also helps stop the User from entering feedback, only to then have it rejected because of the token being invalid.

[scy]

Added requirements discussed in today’s meeting.

[scy]

#164 implements the frontend endpoints as well as the database model(s).

To create a new feedback token, do a call like

create_feedback_token(
    session,
    user=UserPhone("+491751234567"),
    destination_id="96750",
    language=Language("de"),
)

The language should be the language the user requested to have the call in (even if that language is not available as audio). It allows the frontend to initialize the feedback form to that language, for example if the User opens it on their phone, where they’ve never visited the DearMEP frontend on.

👀 @iameru

[scy]

Note that this is only partially implemented: We are able to collect instant feedback via the frontend when the user starts their call from there. However, we don't send feedback SMS and wouldn't have an URL to send users to anyway (see #150).