digraph prof {
    node [style="filled, rounded", shape=box, fontname="Roboto", margin="0.5,0.25"];
    
    /* ------- COLOR-CODED NODE "CLASSES" ------- */
    
    /* Human actions */
    pr, commits0, commits1, runrecipetest, merge,
    release [color=palegreen];
    
    /* Execution steps, flow control, etc. */
    lintgate, registertest, runflow, flowexit, flowsuccess, updatecomment, newrepo, buildrecipe, exitgate, stac [color=khaki];
    
    /* Inline labels */
    Test, Full [color=white, margin="0,0"];
    
    /* Errors */
    error0, error1 [color=pink, label="error"];
    
    
    /* ------- NODE LABELS ------- */
    
    pr [label="PR opened against `/staged-recipes`"];
    commits0, commits1 [label="More commits"];
    lintgate [label="PR includes valid `recipe.py` and `meta.yaml`?"]
    runrecipetest [label="`/run-recipe-test` command issued"]
    registertest [label="Register recipe subset Flow"]
    runflow [label="Run Prefect Flow"]
    etl [label="ETL algorithm"]
    flowexit [label="Exit state POSTed to GitHub API."]
    updatecomment [label="`/run-recipe-test` comment updated"]
    flowsuccess [label="Exit state == 'Success'?"]
    merge [label="Merge PR"]
    newrepo [label="Feedstock repo created"]
    release [label="Tag and release feedstock repo"]
    buildrecipe [label="Register full recipe Flow"]
    exitgate [label="Flow type?"]
    stac [label="Generate STAC Object"]
    
    /* ------- GRAPH CONNECTIONS ------- */
    
    /* Control flow connections */
    
    pr -> lintgate [arrowhead=none]
    lintgate -> error0 [color=red]
    error0  -> commits0
    commits0 -> lintgate
    lintgate -> runrecipetest [color=green]
    runrecipetest -> registertest
    registertest -> runflow
    runflow -> etl
    etl -> flowexit [arrowhead=none]
    flowexit -> exitgate [arrowhead=none]
    exitgate -> Test [arrowhead=none]
    Test -> updatecomment
    exitgate -> Full [arrowhead=none]
    Full -> stac
    stac -> done
    updatecomment -> flowsuccess [arrowhead=none]
    flowsuccess -> error1 [color=red]
    error1 -> commits1
    commits1 -> runrecipetest
    flowsuccess -> merge [color=green]
    merge -> newrepo [arrowhead=none]
    newrepo -> release
    release -> buildrecipe
    buildrecipe -> runflow
    
    {rank = same; registertest; buildrecipe;}
    {rank = same; runrecipetest; release;}
    
    /* ------- CALL STACK -------  
    
    # Styling
    
    linter, registertest_stack, slashcmd, automationhook, 
    updatecomment_stack, newrepo_stack, buildrecipe_stack [color=aliceblue, margin="0.75,0.25"];
    
    # Labels
    
    linter [label="/staged-recipes/.github/workflows/linter.yaml"]
    
    registertest_stack [label="/staged-recipes/.github/workflows/slash-command-dispatch.yaml
    /staged-recipes/.github/workflows/run-recipe-test.yaml"]
    
    slashcmd [label="/recipe-prefect-action/action.yaml
    /pangeo-forge-prefect/pangeo_forge_prefect/flow_manager.py::register_flow"]
    
    automationhook [label="/pangeo-forge-prefect/pangeo_forge_prefect/automation_hook_manager.py"]
    
    updatecomment_stack [label="/staged-recipes/.github/workflows/update-slash-command-comment.yaml"]
    
    newrepo_stack [label="/staged-recipes/.github/workflows/create-feedstock.yaml
    /feedstock-creation-action/action.yaml"]
    
    buildrecipe_stack [label="/feedstock-template/.github/workflows/run-recipe.yaml"]

    # Call stack connections 
    
    lintgate -> linter [arrowhead=none, style=dotted]
    registertest -> registertest_stack [arrowhead=none, style=dotted]
    runflow -> slashcmd [arrowhead=none, style=dotted]
    flowexit -> automationhook [arrowhead=none, style=dotted]
    updatecomment -> updatecomment_stack [arrowhead=none, style=dotted]
    newrepo -> newrepo_stack [arrowhead=none, style=dotted]
    buildrecipe -> buildrecipe_stack [arrowhead=none, style=dotted]
    
    {rank = same; lintgate; linter;}
    {rank = same; registertest; registertest_stack;}
    {rank = same; runflow; slashcmd;}
    {rank = same; flowexit; automationhook;}
    {rank = same; updatecomment; updatecomment_stack;}
    {rank = same; newrepo; newrepo_stack;}
    {rank = same; buildrecipe; buildrecipe_stack;}
    */
}