mermaid-go/examples/enhanced_features_demo.go

package main

import (
	"fmt"
	"log"
	"mermaid-go/pkg/ast"
	"mermaid-go/pkg/detector"
	"mermaid-go/pkg/parser"
	"mermaid-go/pkg/renderer"
)

func main() {
	fmt.Println("🎯 mermaid-go 增强功能演示")
	fmt.Println("================================")

	// 创建主解析器
	mermaidParser := parser.NewMermaidParser()

	// 演示序列图检测和解析
	fmt.Println("\n📊 序列图检测和解析:")
	sequenceInput := `sequenceDiagram
    participant U as User
    participant W as WebApp
    participant S as Server
    
    U -> W : login request
    activate W
    W -> S : validate credentials
    S --> W : success
    W --> U : login complete
    deactivate W`

	// 检测图表类型
	diagramType := mermaidParser.GetDiagramType(sequenceInput)
	fmt.Printf("检测到的图表类型: %s\n", diagramType)

	// 解析序列图
	sequenceDiagram, err := mermaidParser.Parse(sequenceInput)
	if err != nil {
		log.Fatalf("解析序列图失败: %v", err)
	}

	fmt.Printf("解析成功! 图表类型: %s\n", sequenceDiagram.Type())

	// 渲染回 mermaid 语法
	sequenceRenderer := renderer.NewSequenceRenderer()
	sequenceOutput, err := sequenceRenderer.Render(sequenceDiagram.(*ast.SequenceDiagram))
	if err != nil {
		log.Fatalf("渲染序列图失败: %v", err)
	}
	fmt.Printf("渲染结果:\n%s\n", sequenceOutput)

	// 演示状态图检测和解析
	fmt.Println("\n🔄 状态图检测和解析:")
	stateInput := `stateDiagram-v2
    [*] --> Idle
    Idle --> Processing : start [hasData] / processData
    Processing --> Idle : complete [success] / cleanup
    Processing --> Error : fail [error] / logError
    
    note right of Processing : Main processing state
    note left of Error : Error handling`

	// 检测图表类型
	stateDiagramType := mermaidParser.GetDiagramType(stateInput)
	fmt.Printf("检测到的图表类型: %s\n", stateDiagramType)

	// 解析状态图
	stateDiagram, err := mermaidParser.Parse(stateInput)
	if err != nil {
		log.Fatalf("解析状态图失败: %v", err)
	}

	fmt.Printf("解析成功! 图表类型: %s\n", stateDiagram.Type())

	// 渲染回 mermaid 语法
	stateRenderer := renderer.NewStateRenderer()
	stateOutput, err := stateRenderer.Render(stateDiagram.(*ast.StateDiagram))
	if err != nil {
		log.Fatalf("渲染状态图失败: %v", err)
	}
	fmt.Printf("渲染结果:\n%s\n", stateOutput)

	// 演示图表类型检测器
	fmt.Println("\n🔍 图表类型检测器演示:")
	testInputs := []struct {
		name  string
		input string
	}{
		{"序列图", "sequenceDiagram\n    A -> B : hello"},
		{"状态图 V2", "stateDiagram-v2\n    [*] --> State1"},
		{"状态图", "stateDiagram\n    [*] --> State1"},
		{"流程图", "flowchart TD\n    A --> B"},
		{"类图", "classDiagram\n    class Animal"},
		{"ER图", "erDiagram\n    CUSTOMER ||--o{ ORDER"},
		{"甘特图", "gantt\n    title A Gantt Diagram"},
		{"饼图", "pie\n    title Pets adopted by volunteers"},
		{"Git图", "gitGraph\n    commit"},
		{"用户旅程", "journey\n    title My working day"},
		{"时间线", "timeline\n    title History of Social Media Platform"},
		{"思维导图", "mindmap\n  root((mindmap))"},
		{"看板图", "kanban\n    title Kanban Example"},
		{"桑基图", "sankey-beta\n    A --> B"},
		{"XY图", "xychart-beta\n    title Sales Revenue"},
		{"象限图", "quadrantChart\n    title Reach and engagement of campaigns"},
		{"需求图", "requirement\n    requirement Test"},
		{"块图", "block-beta\n    A"},
		{"C4图", "c4Context\n    title System Context diagram for Internet Banking System"},
		{"架构图", "architecture\n    title Architecture diagram"},
		{"雷达图", "radar\n    title Simple Radar Chart"},
		{"树状图", "treemap\n    title Tree Map Example"},
		{"包图", "packet\n    title Packet Diagram"},
		{"信息图", "info\n    title Info Diagram"},
	}

	detectorRegistry := detector.NewDetectorRegistry()
	for _, test := range testInputs {
		detectedType := detectorRegistry.DetectDiagramType(test.input)
		fmt.Printf("  %-12s: %s\n", test.name, detectedType)
	}

	fmt.Println("\n✅ 演示完成!")
	fmt.Println("\n🎉 mermaid-go 现在支持:")
	fmt.Println("  • 智能图表类型检测 (24种图表类型)")
	fmt.Println("  • 增强的序列图解析 (循环、条件、并行、激活框)")
	fmt.Println("  • 增强的状态图解析 (守卫、动作、注释)")
	fmt.Println("  • 丰富的箭头类型支持")
	fmt.Println("  • 模块化的解析器架构")
	fmt.Println("  • 完整的往返转换 (解析→渲染)")
}