Upload a video to YouTube and add it to a playlist automatically

flowchart TD trig(("video ready to publish")):::human s0["upload video to channel"]:::svc s1["add video to playlist"]:::task trig --> s0 gx{"× does playlist already exist"}:::gate s0 --> gx p00["use existing playlist"]:::task gx -->|"existing playlist"| p00 p10["create new playlist"]:::task gx -->|"no playlist yet"| p10 jn{"○ playlist ready"}:::gate p00 --> jn p10 --> jn jn --> s1 out[/"video published and filed"/]:::out pay{{"skip manual playlist sorting"}}:::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