package api

import (
	"errors"
	"net/http"

	"git.artlef.fr/PersonalLibraryManager/internal/model"
	"github.com/gin-gonic/gin"
	"github.com/go-playground/validator/v10"
	"gorm.io/gorm"
)

func GetBooksHanderl(c *gin.Context, db *gorm.DB) {
	var books []model.Book
	db.Model(&model.Book{}).Find(&books)
	c.JSON(http.StatusOK, books)
}

func PostBookHandler(c *gin.Context, db *gorm.DB) {
	var book bookPostCreate
	err := c.ShouldBindJSON(&book)
	if err != nil {
		manageBindingError(c, err)
		return
	}
	bookDb := book.toBook()
	err = db.Model(&model.Book{}).Save(&bookDb).Error
	if err != nil {
		manageDefaultError(c, err)
		return
	}
	c.String(200, "Success")
}

func PostUserHandler(c *gin.Context, db *gorm.DB) {
	var user userPostCreate
	err := c.ShouldBindJSON(&user)
	if err != nil {
		manageBindingError(c, err)
		return
	}
	userDb, err := user.toUser()
	if err != nil {
		manageDefaultError(c, err)
		return
	}
	err = db.Model(&model.User{}).Save(&userDb).Error
	if err != nil {
		manageDefaultError(c, err)
		return
	}
	c.String(200, "Success")
}

func manageBindingError(c *gin.Context, err error) {
	var ve validator.ValidationErrors
	if errors.As(err, &ve) {
		c.JSON(http.StatusBadRequest, getValidationErrors(&ve))
	} else {
		manageDefaultError(c, err)
	}
}

func manageDefaultError(c *gin.Context, err error) {
	c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
}