sequence2.plantuml

@startuml
title GoHjell Analysis Function Calls

actor User
participant web
participant engine
participant chess
participant Stockfish

note right of chess: notnil chess package I did horrific patches to. Mostly not my code
note right of Stockfish: Or another UCI-compatible chess engine

User->web: HTTP POST /analysis/
web->web: EngineHandler ServeHTTP(*request*)
web->engine: EngineInterface RunPosition(RequestData)
engine->chess: uci.Engine Run(... uci.Cmd)
chess->Stockfish: *stdin*
Stockfish->chess: *stdout*
chess->chess: uci.SearchResults
web->>engine: EngineInterface ProxyResults()
engine<<-chess: uci.Engine SearchResults()
engine->>web: EngineInterface ProxyResults()
web->web: *EngineHandler ServeHTTP Martials to JSON*
web->User: HTTP Response Body

@enduml