Validate RSVP emails and generate event badges automatically

flowchart TD trig>"rsvp form submitted"]:::trig s0["check email validity"]:::svc s1[("log rsvp attempt")]:::store trig --> s0 gx{"× is the email valid"}:::gate s0 --> gx p00["create digital badge"]:::task gx -->|"valid email"| p00 p01["send confirmation email"]:::task p00 --> p01 p10["send rejection notice"]:::task gx -->|"invalid email"| p10 jn{"○ log attempt"}:::gate p01 --> jn p10 --> jn jn --> s1 out[/"badge sent or rejection logged"/]:::out pay{{"clean attendee list, no manual checks"}}:::pay s1 --> out out --> pay classDef task fill:#e7f6fe,stroke:#34b8f0,color:#2c2a29 classDef svc fill:#f6f8fa,stroke:#7c8795,color:#2c2a29 classDef mi fill:#e7f6fe,stroke:#0079a8,color:#2c2a29,stroke-width:2px classDef human fill:#fff,stroke:#0079a8,color:#0079a8 classDef store fill:#f6f8fa,stroke:#0079a8,color:#2c2a29 classDef trig fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigtime fill:#00a4eb,stroke:#0079a8,color:#fff,font-weight:bold classDef trigdata fill:#8ad4f5,stroke:#0079a8,color:#06314c,font-weight:bold classDef gate fill:#fff,stroke:#e8a23d,color:#6b4708,font-weight:bold classDef out fill:#1f9d6b,stroke:#167a53,color:#fff,font-weight:bold classDef pay fill:#06314c,stroke:#021f33,color:#fff