// Package renderer provides the main renderer router for all diagram types
package renderer

import (
	"fmt"

	"mermaid-go/pkg/ast"
)

// MermaidRenderer is the main renderer that routes to specific diagram renderers
type MermaidRenderer struct{}

// NewMermaidRenderer creates a new main mermaid renderer
func NewMermaidRenderer() *MermaidRenderer {
	return &MermaidRenderer{}
}

// Render renders any diagram type to mermaid syntax
func (r *MermaidRenderer) Render(diagram ast.Diagram) (string, error) {
	switch d := diagram.(type) {
	case *ast.Flowchart:
		renderer := NewFlowchartRenderer()
		return renderer.Render(d)
	case *ast.SequenceDiagram:
		renderer := NewSequenceRenderer()
		return renderer.Render(d)
	case *ast.ClassDiagram:
		renderer := NewClassRenderer()
		return renderer.Render(d)
	case *ast.StateDiagram:
		renderer := NewStateRenderer()
		return renderer.Render(d)
	case *ast.PieChart:
		renderer := NewPieRenderer()
		return renderer.Render(d)
	case *ast.ERDiagram:
		renderer := NewERRenderer()
		return renderer.Render(d)
	case *ast.GanttDiagram:
		renderer := NewGanttRenderer()
		return renderer.Render(d)
	case *ast.TimelineDiagram:
		renderer := NewTimelineRenderer()
		return renderer.Render(d)
	case *ast.UserJourneyDiagram:
		renderer := NewJourneyRenderer()
		return renderer.Render(d)
	case *ast.ArchitectureDiagram:
		renderer := NewArchitectureRenderer()
		return renderer.Render(d)
	case *ast.OrganizationDiagram:
		renderer := NewOrganizationRenderer()
		return renderer.Render(d)
	case *ast.BPMNDiagram:
		renderer := NewBPMNRenderer()
		return renderer.Render(d)
	case *ast.QuadrantChart:
		return r.renderQuadrantChart(d)
	case *ast.RequirementDiagram:
		return r.renderRequirementDiagram(d)
	default:
		return "", fmt.Errorf("unsupported diagram type: %T", diagram)
	}
}

// Placeholder implementations for remaining diagram types

func (r *MermaidRenderer) renderQuadrantChart(diagram *ast.QuadrantChart) (string, error) {
	return "quadrantChart\n    %% Quadrant chart rendering not yet implemented\n", nil
}

func (r *MermaidRenderer) renderRequirementDiagram(diagram *ast.RequirementDiagram) (string, error) {
	return "requirementDiagram\n    %% Requirement diagram rendering not yet implemented\n", nil
}