Sync contacts from Google Sheets into SeaTable automatically

flowchart TD trig(["scheduled or on-demand run"]):::trigtime s0[("read contacts from sheet")]:::store s1[["check contact by email"]]:::mi trig --> s0 s0 -->|"one per each contact row in the sheet"| s1 gx{"× does contact already exist"}:::gate s1 --> gx p00["update record"]:::task gx -->|"existing contact"| p00 p10["insert record"]:::task gx -->|"new contact"| p10 p00 --> out p10 --> out out[/"seatable database matches sheet"/]:::out pay{{"no duplicate or stale contacts"}}:::pay 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