package routes

import (
	"net/http"
	"strconv"

	"git.artlef.fr/PersonalLibraryManager/internal/appcontext"
	"git.artlef.fr/PersonalLibraryManager/internal/model"
	"git.artlef.fr/PersonalLibraryManager/internal/myvalidator"
	"github.com/gin-gonic/gin"
)

type bookGet struct {
	Title  string `json:"title" binding:"required,max=300"`
	Author string `json:"author" binding:"max=100"`
	Rating int    `json:"rating"`
	Read   bool   `json:"read"`
}

func GetBookHandler(ac appcontext.AppContext) {
	bookId, err := strconv.ParseUint(ac.C.Param("id"), 10, 64)
	if err != nil {
		ac.C.JSON(http.StatusBadRequest, gin.H{"error": err})
		return
	}
	user, fetchUserErr := ac.GetAuthenticatedUser()
	if fetchUserErr != nil {
		myvalidator.ReturnErrorsAsJsonResponse(&ac, fetchUserErr)
		return
	}
	err = myvalidator.ValidateId(ac.Db, uint(bookId), &model.Book{})
	if err != nil {
		myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
		return
	}
	var book bookGet
	query := ac.Db.Model(&model.Book{})
	query = query.Select("books.title, books.author, user_books.rating, user_books.read")
	query = query.Joins("left join user_books on (user_books.book_id = books.id and user_books.user_id = ?)", user.ID)
	query = query.Where("books.id = ?", bookId)
	res := query.First(&book)
	if res.Error != nil {
		myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
		return
	}
	ac.C.JSON(http.StatusOK, book)
}