Adds recipe

cmd/bookworm/bookworm.go

@@ -6,10 +6,13 @@ import (
 	"fmt"
 	"os"
 
+	"git.ctrlz.es/mgdelacroix/bookworm/templates"
+
 	miniflux "miniflux.app/client"
 )
 
 type Config struct {
+	Title            string `json:"title"`
 	MinifluxURL      string `json:"miniflux_url"`
 	MinifluxUsername string `json:"miniflux_username"`
 	MinifluxPassword string `json:"miniflux_password"`
@@ -18,6 +21,10 @@ type Config struct {
 }
 
 func (c *Config) IsValid() error {
+	if c.Title == "" {
+		return fmt.Errorf("title is required")
+	}
+
 	if c.MinifluxURL == "" {
 		return fmt.Errorf("miniflux_url is required")
 	}
@@ -97,7 +104,49 @@ func main() {
 
 	if *listCategoriesFlag {
 		listCategories(cfg, client)
+		return
 	}
 
-	// download feeds (filter by category if specified)
+	var feeds miniflux.Feeds
+	var fErr error
+	if cfg.MinifluxCategory != "" {
+		categories, catErr := client.Categories()
+		if catErr != nil {
+			checkErr(fmt.Errorf("can't get categories: %w", catErr))
+		}
+
+		var category *miniflux.Category
+		for _, c := range categories {
+			if c.Title == cfg.MinifluxCategory {
+				category = c
+				break
+			}
+		}
+
+		if category == nil {
+			checkErr(fmt.Errorf("can't find category %q", cfg.MinifluxCategory))
+		}
+
+		feeds, fErr = client.CategoryFeeds(category.ID)
+	} else {
+		feeds, fErr = client.Feeds()
+	}
+	checkErr(fErr)
+
+	data := struct {
+		Title              string
+		OldestArticle      int
+		MaxArticlesPerFeed int
+		Feeds              miniflux.Feeds
+	}{
+		Title:              cfg.Title,
+		OldestArticle:      7,
+		MaxArticlesPerFeed: 100,
+		Feeds:              feeds,
+	}
+
+	s, tErr := templates.Execute(data)
+	checkErr(tErr)
+
+	checkErr(os.WriteFile("out.recipe", s, 0755))
 }

templates/recipe.tmpl

@@ -0,0 +1,17 @@
+{{- define "recipe" }}
+#!/usr/bin/env python
+from calibre.web.feeds.news import BasicNewsRecipe
+
+class AdvancedUserRecipe1709396452(BasicNewsRecipe):
+    title          = '{{ .Title }}'
+    oldest_article = {{ .OldestArticle }}
+    max_articles_per_feed = {{ .MaxArticlesPerFeed }}
+    auto_cleanup   = True
+    remove_empty_feeds = True
+
+    feeds          = [
+{{- range $index, $feed := .Feeds }}
+        ("{{ $feed.Title }}", "{{ $feed.FeedURL }}"),
+{{- end }}
+    ]
+{{- end }}

templates/templates.go

@@ -0,0 +1,34 @@
+package templates
+
+import (
+	"bytes"
+	"embed"
+	"fmt"
+	"text/template"
+)
+
+//go:embed *.tmpl
+var templates embed.FS
+
+func GetTemplates() (*template.Template, error) {
+	tmpl, err := template.New("").ParseFS(templates, "*.tmpl")
+	if err != nil {
+		return nil, fmt.Errorf("cannot parse templates: %w", err)
+	}
+
+	return tmpl, nil
+}
+
+func Execute(data any) ([]byte, error) {
+	buffer := bytes.NewBufferString("")
+	tmpl, err := GetTemplates()
+	if err != nil {
+		return nil, fmt.Errorf("cannot get templates: %w", err)
+	}
+
+	if err := tmpl.ExecuteTemplate(buffer, "recipe", data); err != nil {
+		return nil, fmt.Errorf("cannot execute template: %w", err)
+	}
+
+	return buffer.Bytes(), nil
+}