Class: Inquirex::Graph::MermaidExporter

Inherits:
Object
  • Object
show all
Defined in:
lib/inquirex/graph/mermaid_exporter.rb

Overview

Exports a flow Definition to Mermaid flowchart syntax for visualization. Node labels show verb + truncated question/text; edges show condition labels.

Constant Summary collapse

MAX_LABEL_LENGTH = 
50

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(definition) ⇒ MermaidExporter

Returns a new instance of MermaidExporter.

Parameters:



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# File 'lib/inquirex/graph/mermaid_exporter.rb', line 13

def initialize(definition)
  @definition = definition
end

Instance Attribute Details

#definition ⇒ Object (readonly)

Returns the value of attribute definition.



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# File 'lib/inquirex/graph/mermaid_exporter.rb', line 10

def definition
  @definition
end

Instance Method Details

#export ⇒ String

Generates Mermaid flowchart TD (top-down) source.

Returns:

  • (String) 


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# File 'lib/inquirex/graph/mermaid_exporter.rb', line 20

def export
  lines = ["flowchart TD"]

  @definition.steps.each_value do |node|
    lines << "  #{node.id}[\"#{node_label(node)}\"]"

    node.transitions.each do |transition|
      label = transition.condition_label
      lines << if label == "always"
                 "  #{node.id} --> #{transition.target}"
               else
                 "  #{node.id} -->|\"#{label}\"| #{transition.target}"
               end
    end
  end

  lines.join("\n")
end