Refactor to collect all books in a category

Signed-off-by: Marcus Noble <github@marcusnoble.co.uk>

pkg/storygraph/client.go

@@ -37,7 +37,7 @@ func init() {
 	c = New(cookie)
 }
 
-func GetLatestBooks() (map[string]*Book, error) {
+func GetLatestBooks() (map[string]*[]Book, error) {
 	fmt.Println("Fetching latest book recommendations...")
 	links := []Book{}
 
@@ -46,7 +46,7 @@ func GetLatestBooks() (map[string]*Book, error) {
 		page++
 		fmt.Println("Fetching page", page)
 
-		resp, err := c.Get(fmt.Sprintf("https://app.thestorygraph.com/to-read/averagemarcus?page=%d", page))
+		resp, err := c.Get(fmt.Sprintf("https://app.thestorygraph.com/to-read/averagemarcus?per_page=100&page=%d", page))
 		if err != nil {
 			fmt.Println("Error making request:", err)
 			return nil, err
@@ -94,7 +94,7 @@ func GetLatestBooks() (map[string]*Book, error) {
 		return links[i].Rating > links[j].Rating
 	})
 
-	return map[string]*Book{
+	return map[string]*[]Book{
 		"Fiction":     nextByTag(links, "Fiction"),
 		"Non-Fiction": nextByTag(links, "Non-Fiction"),
 		"Health":      nextByTag(links, "Health"),
@@ -230,11 +230,12 @@ func bookContains(links []Book, bookID string) bool {
 	return false
 }
 
-func nextByTag(links []Book, tag string) *Book {
+func nextByTag(links []Book, tag string) *[]Book {
+	filtered := []Book{}
 	for _, b := range links {
 		if slices.Contains(b.Tags, tag) {
-			return &b
+			filtered = append(filtered, b)
 		}
 	}
-	return nil
+	return &filtered
 }