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Enhance recipe4reader: Add image handling and improve Markdown conversion

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This commit is contained in:
Thomas
2026-01-11 23:11:43 +01:00
parent e81a5ff3cc
commit 1bb341b14e
1 changed files with 23 additions and 9 deletions
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32
recipe4reader/recipe4reader.go
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@@ -3,6 +3,8 @@ package main
import (
"encoding/json"
"fmt"
"image"
"image/jpeg"
"io"
"net/http"
"os"
@@ -16,6 +18,8 @@ import (
"github.com/gomarkdown/markdown"
"github.com/gomarkdown/markdown/html"
"github.com/gomarkdown/markdown/parser"
"github.com/google/uuid"
"github.com/nfnt/resize"
)
type Parameters struct {
@@ -51,6 +55,7 @@ type Recipe struct {
Items []Item `json:"items"`
}
// Converts a string to a slug suitable for referencing
func Slugify(s string) string {
// Convert to lowercase
result := strings.ToLower(s)
@@ -62,6 +67,7 @@ func Slugify(s string) string {
return result
}
// Converts Markdown text to HTML
func MarkdownToHTML(md string) string {
// Create markdown parser with extensions
extensions := parser.CommonExtensions | parser.AutoHeadingIDs | parser.NoEmptyLineBeforeBlock
@@ -76,6 +82,7 @@ func MarkdownToHTML(md string) string {
return string(markdown.Render(doc, renderer))
}
// Retrieves the household information from the KitchenOwl server
func FetchHousehold(param Parameters) (*Household, error) {
client := &http.Client{Timeout: 10 * time.Second}
req, err := http.NewRequest(http.MethodGet, param.KitchenOwlURL+"/api/household/"+param.KitchenOwlHousehold, nil)
@@ -108,9 +115,10 @@ func FetchHousehold(param Parameters) (*Household, error) {
return &household, nil
}
func FetchImage(param Parameters, image string) (*string, error) {
// Retrieves an image from the KitchenOwl server, resize it and saves it to a temporary file
func FetchImage(param Parameters, imageName string) (*string, error) {
client := &http.Client{Timeout: 10 * time.Second}
req, err := http.NewRequest(http.MethodGet, param.KitchenOwlURL+"/api/upload/"+image, nil)
req, err := http.NewRequest(http.MethodGet, param.KitchenOwlURL+"/api/upload/"+imageName, nil)
if err != nil {
return nil, err
}
@@ -128,15 +136,21 @@ func FetchImage(param Parameters, image string) (*string, error) {
}
// Open a file for writing
filename := "/tmp/" + image
filename := "/tmp/" + imageName
file, err := os.Create(filename)
if err != nil {
return nil, err
}
defer file.Close()
// Dump the response body to the file
_, err = io.Copy(file, res.Body)
// Decode the image
img, _, err := image.Decode(res.Body)
if err != nil {
return nil, err
}
// Resize the image, encode it to JPEG and write to file
err = jpeg.Encode(file, resize.Resize(1000, 0, img, resize.Lanczos3), &jpeg.Options{Quality: 80})
if err != nil {
return nil, err
}
@@ -144,6 +158,7 @@ func FetchImage(param Parameters, image string) (*string, error) {
return &filename, nil
}
// Retrieves the recipes from the KitchenOwl server
func FetchRecipes(param Parameters) ([]Recipe, error) {
client := &http.Client{Timeout: 10 * time.Second}
req, err := http.NewRequest(http.MethodGet, param.KitchenOwlURL+"/api/household/"+param.KitchenOwlHousehold+"/recipe", nil)
@@ -197,6 +212,9 @@ func CreateEbook(param Parameters, household Household, recipes []Recipe) (*epub
// Set description
book.SetDescription("Recipes from KitchenOwl server " + param.KitchenOwlURL)
book.SetLang("fr")
book.SetIdentifier("urn:uuid:" + uuid.NewMD5(uuid.NameSpaceDNS, []byte(param.KitchenOwlURL+"/api/household/"+param.KitchenOwlHousehold)).String())
// Add cover image
filename, err := FetchImage(param, household.Photo)
if err != nil {
@@ -274,10 +292,6 @@ func CreateEbook(param Parameters, household Household, recipes []Recipe) (*epub
}
content += MarkdownToHTML(description)
if strings.HasPrefix(recipe.Name, "Kimchi") {
fmt.Println(content)
}
_, err := book.AddSubSection(section, content, recipe.Name, "", "")
if err != nil {
fmt.Printf("Error adding recipe section: %v\n", err)