package domain

import "time"

type Role struct {
	ID          uint      `json:"id" gorm:"primaryKey"`
	TenantID    string    `json:"tenant_id" gorm:"type:uuid;not null;primaryKey;index:idx_tenant_role_name,unique"`
	Name        string    `json:"name" gorm:"size:64;not null;index:idx_tenant_role_name,unique"`
	Description string    `json:"description" gorm:"size:256"`
	IsSystem    bool      `json:"is_system" gorm:"default:false"`
	CreatedAt   time.Time `json:"created_at"`
	UpdatedAt   time.Time `json:"updated_at"`

	Permissions []Permission `json:"permissions,omitempty" gorm:"many2many:role_permissions;"`
}

func (Role) TableName() string {
	return "roles"
}

type RolePermission struct {
	RoleID       uint `gorm:"primaryKey"`
	PermissionID uint `gorm:"primaryKey"`
}

func (RolePermission) TableName() string {
	return "role_permissions"
}

type UserRole struct {
	UserID   uint   `json:"user_id" gorm:"primaryKey"`
	TenantID string `json:"tenant_id" gorm:"type:uuid;not null;primaryKey"`
	RoleID   uint   `json:"role_id" gorm:"not null"`
}

func (UserRole) TableName() string {
	return "user_roles"
}

type RoleDTO struct {
	ID          uint            `json:"id"`
	TenantID    string          `json:"tenant_id"`
	Name        string          `json:"name"`
	Description string          `json:"description"`
	IsSystem    bool            `json:"is_system"`
	Permissions []PermissionDTO `json:"permissions,omitempty"`
}

func ToRoleDTO(r *Role) RoleDTO {
	dto := RoleDTO{
		ID:          r.ID,
		TenantID:    r.TenantID,
		Name:        r.Name,
		Description: r.Description,
		IsSystem:    r.IsSystem,
	}
	if r.Permissions != nil {
		dto.Permissions = make([]PermissionDTO, len(r.Permissions))
		for i, p := range r.Permissions {
			dto.Permissions[i] = ToPermissionDTO(&p)
		}
	}
	return dto
}

type CreateRoleRequest struct {
	Name        string `json:"name" binding:"required"`
	Description string `json:"description"`
}

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

type SetRolePermissionsRequest struct {
	PermissionIDs []uint `json:"permission_ids" binding:"required"`
}

type AssignRoleRequest struct {
	RoleID uint `json:"role_id" binding:"required"`
}