package routes

import (
	"net/http"

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

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

	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 []query.BookSearchGet
	if len(books) > 0 {
		returnedBooks = books
	} else {
		queryResult, err := openlibrary.CallOpenLibrarySearch(searchterm, limit, offset)
		if err != nil {
			myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
			return
		}
		returnedBooks = OpenLibraryBooksToBookSearchGet(queryResult.Books)
	}
	ac.C.JSON(http.StatusOK, returnedBooks)
}

func OpenLibraryBooksToBookSearchGet(OLbooks []openlibrary.OpenLibrarySearchBook) []query.BookSearchGet {
	var books []query.BookSearchGet
	for _, b := range OLbooks {
		bookSearchGet := query.BookSearchGet{
			ID:            0,
			Title:         b.Title,
			Author:        b.Authors[0],
			OpenLibraryId: b.OpenLibraryId,
			Rating:        0,
			Read:          false,
			WantRead:      false,
			CoverPath:     "",
		}
		books = append(books, bookSearchGet)
	}
	return books
}

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

	user, fetchUserErr := ac.GetAuthenticatedUser()
	if fetchUserErr != nil {
		myvalidator.ReturnErrorsAsJsonResponse(&ac, fetchUserErr)
		return
	}
	count, err := query.FetchBookSearchGetCount(ac.Db, user.ID, searchterm)
	if err != nil {
		myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
		return
	}
	var finalCount int64
	if count > 0 {
		finalCount = count
	} else {
		queryResult, err := openlibrary.CallOpenLibrarySearch(searchterm, 0, 0)
		if err != nil {
			myvalidator.ReturnErrorsAsJsonResponse(&ac, err)
			return
		}
		finalCount = int64(queryResult.NumFound)
	}
	ac.C.JSON(http.StatusOK, gin.H{"count": finalCount})
}