package schema

import (
	"entgo.io/ent"
	"entgo.io/ent/schema/edge"
	"entgo.io/ent/schema/field"
	"entgo.io/ent/schema/index"
	"time"
)

// Permission holds the schema definition for the Permission entity.
type Permission struct {
	ent.Schema
}

// Fields of the Permission.
func (Permission) Fields() []ent.Field {
	return []ent.Field{
		field.String("resource").
			NotEmpty().
			Comment("Resource name, e.g., 'media', 'post'"),
		field.String("action").
			NotEmpty().
			Comment("Action name, e.g., 'create', 'read', 'update', 'delete'"),
		field.String("description").
			Optional().
			Comment("Human readable description of the permission"),
		field.Time("created_at").
			Default(time.Now).
			Immutable(),
		field.Time("updated_at").
			Default(time.Now).
			UpdateDefault(time.Now),
	}
}

// Edges of the Permission.
func (Permission) Edges() []ent.Edge {
	return []ent.Edge{
		edge.From("roles", Role.Type).
			Ref("permissions"),
	}
}

// Indexes of the Permission.
func (Permission) Indexes() []ent.Index {
	return []ent.Index{
		// Create a unique index on resource and action
		index.Fields("resource", "action").
			Unique(),
	}
}