88 lines
2.3 KiB
Go
88 lines
2.3 KiB
Go
package v1
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import (
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"encoding/json"
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"git.kolaente.de/konrad/Library/models"
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"github.com/labstack/echo"
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"net/http"
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"strconv"
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"strings"
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)
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// BookAddOrUpdate is the handler to add a book
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func BookAddOrUpdate(c echo.Context) error {
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// Check for Request Content
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bookFromString := c.FormValue("book")
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var datBook *models.Book
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if bookFromString == "" {
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if err := c.Bind(&datBook); err != nil {
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return c.JSON(http.StatusBadRequest, models.Message{"No book model provided."})
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}
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} else {
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// Decode the JSON
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dec := json.NewDecoder(strings.NewReader(bookFromString))
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err := dec.Decode(&datBook)
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if err != nil {
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return c.JSON(http.StatusBadRequest, models.Message{"Error decoding book: " + err.Error()})
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}
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}
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// Check if we have an ID other than the one in the struct
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id := c.Param("id")
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if id != "" {
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// Make int
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bookID, err := strconv.ParseInt(id, 10, 64)
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if err != nil {
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return c.JSON(http.StatusBadRequest, models.Message{"Invalid ID."})
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}
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datBook.ID = bookID
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}
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// Check if the book exists
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if datBook.ID != 0 {
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_, exists, err := models.GetBookByID(datBook.ID)
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if err != nil {
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return c.JSON(http.StatusInternalServerError, models.Message{"Could not check if the book exists."})
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}
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if !exists {
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return c.JSON(http.StatusNotFound, models.Message{"The book does not exist."})
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}
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}
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// Check if we have at least a title
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if datBook.Title == "" && datBook.ID == 0 {
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return c.JSON(http.StatusBadRequest, models.Message{"You need at least a title to insert a new book!"})
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}
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// Insert or update the book
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newBook, err := models.AddOrUpdateBook(*datBook)
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if err != nil {
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if models.IsErrAuthorCannotBeEmpty(err) {
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return c.JSON(http.StatusBadRequest, models.Message{"Id cannot be 0."})
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}
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if models.IsErrBookTitleCannotBeEmpty(err) {
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return c.JSON(http.StatusBadRequest, models.Message{"You need to provide at least a title for the book."})
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}
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if models.IsErrNoPublisherName(err) {
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return c.JSON(http.StatusBadRequest, models.Message{"You need to provide at least a name to insert a new publisher."})
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}
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return c.JSON(http.StatusInternalServerError, models.Message{"Error"})
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}
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// Log the action
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err = models.LogAction("Added or updated a book", newBook.ID, c)
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if err != nil {
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return c.JSON(http.StatusInternalServerError, models.Message{"Could not log."})
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}
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return c.JSON(http.StatusOK, newBook)
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}
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