package routes

import (
	"net/http"
	"strings"

	"git.artlef.fr/PersonalLibraryManager/internal/appcontext"
	"git.artlef.fr/PersonalLibraryManager/internal/dto"
	"git.artlef.fr/PersonalLibraryManager/internal/inventaire"
	"git.artlef.fr/PersonalLibraryManager/internal/myvalidator"
	"git.artlef.fr/PersonalLibraryManager/internal/query"
)

func GetSearchBooksHandler(ac appcontext.AppContext) {
	searchterm := ac.C.Param("searchterm")

	var params dto.BookSearchGetParam
	err := ac.C.ShouldBind(&params)
	if err != nil {
		myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
		return
	}
	user, fetchUserErr := ac.GetAuthenticatedUser()
	if fetchUserErr != nil {
		myvalidator.ReturnErrorsAsJsonResponse(&ac, fetchUserErr)
		return
	}

	limit, err := ac.GetQueryLimit()
	if err != nil {
		myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
		return
	}
	offset, err := ac.GetQueryOffset()
	if err != nil {
		myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
		return
	}
	books, err := query.FetchBookSearchGet(ac.Db, user.ID, searchterm, limit, offset)
	if err != nil {
		myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
		return
	}
	var returnedBooks dto.BookSearchGet
	if len(books) > 0 {
		count, err := query.FetchBookSearchGetCount(ac.Db, user.ID, searchterm)
		if err != nil {
			myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
			return
		}
		returnedBooks = dto.BookSearchGet{Count: count, Books: books}
	} else {
		queryResult, err := inventaire.CallInventaireSearch(searchterm, params.Lang, limit, offset)
		if err != nil {
			myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
			return
		}
		returnedBooks = InventaireBooksToBookSearchGet(queryResult)
	}
	ac.C.JSON(http.StatusOK, returnedBooks)
}

func InventaireBooksToBookSearchGet(results inventaire.InventaireSearchResult) dto.BookSearchGet {
	var books []dto.BookSearchGetBook
	for _, b := range results.Results {
		coverPath := ""
		if b.Image != "" && strings.HasPrefix(b.Image, "/") {
			coverPath = inventaire.GetBaseInventaireUrl() + b.Image
		}
		bookSearchGetBook := dto.BookSearchGetBook{
			ID:           0,
			Title:        b.Label,
			Author:       "",
			Description:  b.Description,
			InventaireID: b.ID,
			Rating:       0,
			Read:         false,
			WantRead:     false,
			CoverPath:    coverPath,
		}
		books = append(books, bookSearchGetBook)
	}
	return dto.BookSearchGet{Count: results.Total, Books: books}
}