package component

import (
	"api-service/internal/models"
	"database/sql"
	"encoding/json"
	"time"
)

// Rol_component represents the data structure for the role_access.rol_component table
// with proper null handling and optimized JSON marshaling.
type Rol_component struct {
	ID           int64          `json:"id" db:"id"`
	Name         string         `json:"name" db:"name"`
	Description  sql.NullString `json:"description,omitempty" db:"description"`
	Directory    string         `json:"directory" db:"directory"`
	Active       bool           `json:"active" db:"active"`
	FkRolPagesID int64          `json:"fk_rol_pages_id" db:"fk_rol_pages_id"`
	Sort         int64          `json:"sort" db:"sort"`
}

// MarshalJSON for Rol_component handles the sql.NullString field 'Description'
// to ensure it appears as null, an empty string, or the string value in JSON.
func (r Rol_component) MarshalJSON() ([]byte, error) {
	type Alias Rol_component
	aux := &struct {
		*Alias
		Description *string `json:"description,omitempty"`
	}{
		Alias: (*Alias)(&r),
	}

	if r.Description.Valid {
		aux.Description = &r.Description.String
	}
	return json.Marshal(aux)
}

// Helper method to safely get Description
func (r *Rol_component) GetDescription() string {
	if r.Description.Valid {
		return r.Description.String
	}
	return ""
}

// =============================================================================
// REQUEST & RESPONSE STRUCTS FOR ROL_COMPONENT
// =============================================================================

// ComponentCreateRequest defines the structure for creating a new component.
type ComponentCreateRequest struct {
	Name         string  `json:"name" validate:"required,min=1,max=100"`
	Description  *string `json:"description" validate:"omitempty,max=255"`
	Directory    string  `json:"directory" validate:"required,min=1,max=255"`
	Active       bool    `json:"active"`
	Sort         int64   `json:"sort"`
	FkRolPagesID int64   `json:"fk_rol_pages_id" validate:"required,min=1"`
}

// ComponentUpdateRequest defines the structure for updating an existing component.
// ID is handled via URL parameter, so it's omitted from JSON with `json:"-"`.
type ComponentUpdateRequest struct {
	ID           *int    `json:"-" validate:"required"` // ID is from URL param
	Name         *string `json:"name" validate:"omitempty,min=1,max=100"`
	Description  *string `json:"description" validate:"omitempty,max=255"`
	Directory    *string `json:"directory" validate:"omitempty,min=1,max=255"`
	Active       *bool   `json:"active" validate:"omitempty"`
	Sort         *int    `json:"sort" validate:"omitempty,min=1"`
	FkRolPagesID *int    `json:"fk_rol_pages_id" validate:"omitempty,min=1"`
}

// ComponentsGetResponse defines the response structure for getting a list of components.
type ComponentsGetResponse struct {
	Code    int                 `json:"code"`
	Message string              `json:"message"`
	Data    []Rol_component     `json:"data"`
	Meta    models.MetaResponse `json:"meta"`
}

// ComponentCreateResponse defines the response structure for creating a component.
type ComponentCreateResponse struct {
	Message string         `json:"message"`
	Data    *Rol_component `json:"data"`
}

// ComponentUpdateResponse defines the response structure for updating a component.
type ComponentUpdateResponse struct {
	Message string         `json:"message"`
	Data    *Rol_component `json:"data"`
}

// ComponentDeleteResponse defines the response structure for deleting a component.
type ComponentDeleteResponse struct {
	Message string `json:"message"`
	ID      string `json:"id"`
}

// Rol_componentFilter defines the structure for query parameters when filtering components.
type Rol_componentFilter struct {
	PageID   *int64     `json:"page_id,omitempty" form:"page_id"`
	Active   *bool      `json:"active,omitempty" form:"active"`
	Search   *string    `json:"search,omitempty" form:"search"`
	DateFrom *time.Time `json:"date_from,omitempty" form:"date_from"`
	DateTo   *time.Time `json:"date_to,omitempty" form:"date_to"`
	Status   *string    `json:"status,omitempty" form:"status"`
}