Open Library search API

If nothing is found on the server, returns results from open library
API. Clicking on a book imports it.

internal/openlibrary/openlibrarysearch.go

@@ -0,0 +1,29 @@
+package openlibrary
+
+type OpenLibrarySearchResult struct {
+	Books    []OpenLibrarySearchBook `json:"docs"`
+	NumFound int                     `json:"numFound"`
+}
+
+type OpenLibrarySearchBook struct {
+	Title         string   `json:"title"`
+	Authors       []string `json:"author_name"`
+	OpenLibraryId string   `json:"cover_edition_key"`
+}
+
+func CallOpenLibrarySearch(searchterm string, limit int, offset int) (OpenLibrarySearchResult, error) {
+	var queryResult OpenLibrarySearchResult
+	u, err := computeOpenLibraryUrl("search.json")
+	if err != nil {
+		return queryResult, err
+	}
+	if limit != 0 {
+		addQueryParamInt(u, "limit", limit)
+	}
+	if offset != 0 {
+		addQueryParamInt(u, "offset", offset)
+	}
+	addQueryParam(u, "q", searchterm)
+	err = fetchAndParseResult(u, &queryResult)
+	return queryResult, err
+}