Generate business leads from free map data and save to Sheets

flowchart TD trig(("user sets search criteria")):::human s0["search map data for businesses"]:::svc s1[["collect business details"]]:::mi s2["check for listed email"]:::task s3["remove duplicate entries"]:::task s4[("save leads to spreadsheet")]:::store trig --> s0 s0 -->|"one per each business found"| s1 s1 --> s2 s3 --> s4 gx{"× is email already listed"}:::gate s2 --> gx p00["keep listed email"]:::task gx -->|"email present"| p00 p10["visit website for email"]:::task gx -->|"email missing"| p10 jn{"○ continue processing"}:::gate p00 --> jn p10 --> jn jn --> s3 out[/"spreadsheet of local business leads"/]:::out pay{{"targeted lead list without paid databases"}}:::pay s4 --> 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