package models

import (
	"kontor-api-gin/internal/helpers"
	"time"
)

type Book struct {
	ID          string             `gorm:"type:string;primary_key;"  json:"id"`
	CreatedAt   time.Time          `gorm:"column:created_date"       json:"created_date"`
	UpdatedAt   time.Time          `gorm:"column:last_modified_date" json:"last_modified_date"`
	DeletedAt   *time.Time         `gorm:"column:deleted_date"       json:"deleted_date"`
	Version     int                `gorm:"default:0"                 json:"version"`
	ISBN        string             `gorm:"column:isbn;uniqueIndex"   json:"isbn"`
	Title       string             `gorm:"column:title"              json:"title"`
	Year        int                `gorm:"column:year"               json:"year"`
	PublisherID string             `gorm:"column:publisher_id"       json:"publisher_id"`
	Publisher   BookshelfPublisher `gorm:"foreignKey:PublisherID"    json:"publisher"`
	BookAuthors []BookAuthor       `gorm:"foreignKey:BookID"         json:"book_authors"`
}

func (book *Book) TableName() string {
	return "book"
}

type BookDTO struct {
	ID        string             `json:"id"                     binding:"required"`
	CreatedAt helpers.KontorTime `json:"created_date"`
	UpdatedAt helpers.KontorTime `json:"last_modified_date"`
	DeletedAt *time.Time         `json:"deleted_date,omitempty"`
	Version   int                `json:"version"`
	Title     string             `json:"title"`
}

func (dto BookDTO) ConvertDTOToModel() Book {
	model := Book{
		ID:        dto.ID,
		CreatedAt: dto.CreatedAt.Time,
		UpdatedAt: dto.UpdatedAt.Time,
		DeletedAt: dto.DeletedAt,
		Version:   dto.Version,
		Title:     dto.Title,
	}
	return model
}

func ConvertBooksToDtos(books []Book) []BookDTO {
	dtos := make([]BookDTO, len(books))
	for i, book := range books {
		dtos[i] = BookDTO{
			ID:        book.ID,
			CreatedAt: helpers.KontorTime{Time: book.CreatedAt},
			UpdatedAt: helpers.KontorTime{Time: book.UpdatedAt},
			DeletedAt: book.DeletedAt,
			Version:   book.Version,
			Title:     book.Title,
		}
	}
	return dtos
}

type BookDTOList []BookDTO