// Other diagram types based on mermaid.js parsers
package ast

// ERDiagram represents an entity relationship diagram
type ERDiagram struct {
	Entities  map[string]*EREntity `json:"entities"`
	Relations []*ERRelation        `json:"relations"`
	Title     *string              `json:"title,omitempty"`
	Config    map[string]any       `json:"config,omitempty"`
}

type EREntity struct {
	ID         string         `json:"id"`
	Name       string         `json:"name"`
	Attributes []*ERAttribute `json:"attributes"`
	CssClasses []string       `json:"cssClasses,omitempty"`
}

type ERAttribute struct {
	Name    string     `json:"name"`
	Type    string     `json:"type"`
	Key     *ERKeyType `json:"key,omitempty"`
	Comment *string    `json:"comment,omitempty"`
}

type ERKeyType string

const (
	ERKeyPrimary ERKeyType = "PK"
	ERKeyForeign ERKeyType = "FK"
	ERKeyUnique  ERKeyType = "UK"
)

type ERRelation struct {
	From        string         `json:"from"`
	To          string         `json:"to"`
	Type        ERRelationType `json:"type"`
	Label       *string        `json:"label,omitempty"`
	Cardinality *ERCardinality `json:"cardinality,omitempty"`
}

type ERRelationType string

const (
	ERRelationOneToOne   ERRelationType = "||--||"
	ERRelationOneToMany  ERRelationType = "||--o{"
	ERRelationManyToOne  ERRelationType = "}o--||"
	ERRelationManyToMany ERRelationType = "}o--o{"
	ERRelationZeroToOne  ERRelationType = "||--o|"
	ERRelationZeroToMany ERRelationType = "||--o{"
)

type ERCardinality struct {
	From string `json:"from"`
	To   string `json:"to"`
}

// GanttDiagram represents a Gantt chart
type GanttDiagram struct {
	Title      *string         `json:"title,omitempty"`
	DateFormat string          `json:"dateFormat"`
	AxisFormat string          `json:"axisFormat"`
	Sections   []*GanttSection `json:"sections"`
	Tasks      []*GanttTask    `json:"tasks"`
	Config     map[string]any  `json:"config,omitempty"`
}

type GanttSection struct {
	Name  string       `json:"name"`
	Tasks []*GanttTask `json:"tasks"`
}

type GanttTask struct {
	ID           string      `json:"id"`
	Name         string      `json:"name"`
	Status       GanttStatus `json:"status"`
	Start        *string     `json:"start,omitempty"`
	End          *string     `json:"end,omitempty"`
	Duration     *string     `json:"duration,omitempty"`
	Dependencies []string    `json:"dependencies,omitempty"`
}

type GanttStatus string

const (
	GanttStatusActive GanttStatus = "active"
	GanttStatusDone   GanttStatus = "done"
	GanttStatusCrit   GanttStatus = "crit"
)

// PieChart represents a pie chart
type PieChart struct {
	Title  *string        `json:"title,omitempty"`
	Data   []*PieSlice    `json:"data"`
	Config map[string]any `json:"config,omitempty"`
}

type PieSlice struct {
	Label string  `json:"label"`
	Value float64 `json:"value"`
}

// TimelineDiagram represents a timeline diagram
type TimelineDiagram struct {
	Title    *string            `json:"title,omitempty"`
	Sections []*TimelineSection `json:"sections"`
	Config   map[string]any     `json:"config,omitempty"`
}

type TimelineSection struct {
	Name   string           `json:"name"`
	Events []*TimelineEvent `json:"events"`
}

type TimelineEvent struct {
	Name        string  `json:"name"`
	Description *string `json:"description,omitempty"`
	Time        *string `json:"time,omitempty"`
}

// UserJourneyDiagram represents a user journey diagram
type UserJourneyDiagram struct {
	Title    *string               `json:"title,omitempty"`
	Sections []*UserJourneySection `json:"sections"`
	Config   map[string]any        `json:"config,omitempty"`
}

type UserJourneySection struct {
	Name  string             `json:"name"`
	Tasks []*UserJourneyTask `json:"tasks"`
}

type UserJourneyTask struct {
	Name   string   `json:"name"`
	Score  *float64 `json:"score,omitempty"`
	People []string `json:"people,omitempty"`
}

// QuadrantChart represents a quadrant chart
type QuadrantChart struct {
	Title     *string          `json:"title,omitempty"`
	XAxis     *QuadrantAxis    `json:"xAxis,omitempty"`
	YAxis     *QuadrantAxis    `json:"yAxis,omitempty"`
	Quadrants []*QuadrantData  `json:"quadrants"`
	Points    []*QuadrantPoint `json:"points"`
	Config    map[string]any   `json:"config,omitempty"`
}

type QuadrantAxis struct {
	Label string  `json:"label"`
	Min   float64 `json:"min"`
	Max   float64 `json:"max"`
}

type QuadrantData struct {
	Name        string `json:"name"`
	Description string `json:"description"`
}

type QuadrantPoint struct {
	Name string  `json:"name"`
	X    float64 `json:"x"`
	Y    float64 `json:"y"`
}

// RequirementDiagram represents a requirement diagram
type RequirementDiagram struct {
	Requirements []*Requirement         `json:"requirements"`
	Elements     []*RequirementElement  `json:"elements"`
	Relations    []*RequirementRelation `json:"relations"`
	Config       map[string]any         `json:"config,omitempty"`
}

type Requirement struct {
	ID           string                   `json:"id"`
	Name         string                   `json:"name"`
	Type         RequirementType          `json:"type"`
	Text         *string                  `json:"text,omitempty"`
	Risk         *RequirementRisk         `json:"risk,omitempty"`
	Verification *RequirementVerification `json:"verification,omitempty"`
}

type RequirementType string

const (
	RequirementTypeRequirement            RequirementType = "requirement"
	RequirementTypeFunctionalRequirement  RequirementType = "functionalRequirement"
	RequirementTypeInterfaceRequirement   RequirementType = "interfaceRequirement"
	RequirementTypePerformanceRequirement RequirementType = "performanceRequirement"
	RequirementTypePhysicalRequirement    RequirementType = "physicalRequirement"
	RequirementTypeDesignConstraint       RequirementType = "designConstraint"
)

type RequirementRisk string

const (
	RequirementRiskLow    RequirementRisk = "low"
	RequirementRiskMedium RequirementRisk = "medium"
	RequirementRiskHigh   RequirementRisk = "high"
)

type RequirementVerification string

const (
	RequirementVerificationAnalysis      RequirementVerification = "analysis"
	RequirementVerificationInspection    RequirementVerification = "inspection"
	RequirementVerificationTest          RequirementVerification = "test"
	RequirementVerificationDemonstration RequirementVerification = "demonstration"
)

type RequirementElement struct {
	ID     string  `json:"id"`
	Name   string  `json:"name"`
	Type   string  `json:"type"`
	DocRef *string `json:"docRef,omitempty"`
}

type RequirementRelation struct {
	From string                  `json:"from"`
	To   string                  `json:"to"`
	Type RequirementRelationType `json:"type"`
}

type RequirementRelationType string

const (
	RequirementRelationContains  RequirementRelationType = "contains"
	RequirementRelationCopies    RequirementRelationType = "copies"
	RequirementRelationDerives   RequirementRelationType = "derives"
	RequirementRelationSatisfies RequirementRelationType = "satisfies"
	RequirementRelationVerifies  RequirementRelationType = "verifies"
	RequirementRelationRefines   RequirementRelationType = "refines"
	RequirementRelationTraces    RequirementRelationType = "traces"
)

// Type methods for all diagram types
func (e *ERDiagram) Type() DiagramType { return DiagramTypeERDiagram }
func (e *ERDiagram) Validate() error   { return nil }

func (g *GanttDiagram) Type() DiagramType { return DiagramTypeGantt }
func (g *GanttDiagram) Validate() error   { return nil }

func (p *PieChart) Type() DiagramType { return DiagramTypePie }
func (p *PieChart) Validate() error   { return nil }

func (t *TimelineDiagram) Type() DiagramType { return DiagramTypeTimeline }
func (t *TimelineDiagram) Validate() error   { return nil }

func (u *UserJourneyDiagram) Type() DiagramType { return DiagramTypeUserJourney }
func (u *UserJourneyDiagram) Validate() error   { return nil }

func (q *QuadrantChart) Type() DiagramType { return DiagramTypeQuadrant }
func (q *QuadrantChart) Validate() error   { return nil }

func (r *RequirementDiagram) Type() DiagramType { return DiagramTypeRequirement }
func (r *RequirementDiagram) Validate() error   { return nil }

// Constructor functions
func NewERDiagram() *ERDiagram {
	return &ERDiagram{
		Entities:  make(map[string]*EREntity),
		Relations: make([]*ERRelation, 0),
		Config:    make(map[string]any),
	}
}