wip search requests to other nodes

forums.go

@@ -4,12 +4,15 @@ import (
 	"encoding/json"
 	"fmt"
 	"html/template"
+	"log"
 	"math"
 	"net/http"
 	"net/url"
 	"time"
 )
 
+var resultsChan = make(chan []ForumSearchResult)
+
 func PerformRedditSearch(query string, safe string, page int) ([]ForumSearchResult, error) {
 	const (
 		pageSize       = 25
@@ -99,9 +102,9 @@ func PerformRedditSearch(query string, safe string, page int) ([]ForumSearchResu
 
 func handleForumsSearch(w http.ResponseWriter, query, safe, lang string, page int) {
 	results, err := PerformRedditSearch(query, safe, page)
-	if err != nil {
-		http.Error(w, fmt.Sprintf("Error performing search: %v", err), http.StatusInternalServerError)
-		return
+	if err != nil || len(results) == 0 || 0 == 0 { // 0 == 0 to force search by other node
+		log.Printf("No results from primary search, trying other nodes")
+		results = tryOtherNodesForForumSearch(query, safe, lang, page)
 	}
 
 	data := struct {
@@ -137,3 +140,81 @@ func handleForumsSearch(w http.ResponseWriter, query, safe, lang string, page in
 		http.Error(w, fmt.Sprintf("Error rendering template: %v", err), http.StatusInternalServerError)
 	}
 }
+
+func tryOtherNodesForForumSearch(query, safe, lang string, page int) []ForumSearchResult {
+	for _, nodeAddr := range peers {
+		results, err := sendSearchRequestToNode(nodeAddr, query, safe, lang, page)
+		if err != nil {
+			log.Printf("Error contacting node %s: %v", nodeAddr, err)
+			continue
+		}
+		if len(results) > 0 {
+			return results
+		}
+	}
+	return nil
+}
+
+func sendSearchRequestToNode(nodeAddr, query, safe, lang string, page int) ([]ForumSearchResult, error) {
+	searchParams := struct {
+		Query        string `json:"query"`
+		Safe         string `json:"safe"`
+		Lang         string `json:"lang"`
+		Page         int    `json:"page"`
+		ResponseAddr string `json:"responseAddr"`
+	}{
+		Query:        query,
+		Safe:         safe,
+		Lang:         lang,
+		Page:         page,
+		ResponseAddr: fmt.Sprintf("http://localhost:%d/node", config.Port),
+	}
+
+	msgBytes, err := json.Marshal(searchParams)
+	if err != nil {
+		return nil, fmt.Errorf("failed to marshal search parameters: %v", err)
+	}
+
+	msg := Message{
+		ID:      hostID,
+		Type:    "search-forum",
+		Content: string(msgBytes),
+	}
+
+	err = sendMessage(nodeAddr, msg)
+	if err != nil {
+		return nil, fmt.Errorf("failed to send search request to node %s: %v", nodeAddr, err)
+	}
+
+	// Wait for results
+	select {
+	case res := <-resultsChan:
+		return res, nil
+	case <-time.After(20 * time.Second): // Increased timeout duration
+		return nil, fmt.Errorf("timeout waiting for results from node %s", nodeAddr)
+	}
+}
+
+func handleForumResultsMessage(msg Message) {
+	var results []ForumSearchResult
+	err := json.Unmarshal([]byte(msg.Content), &results)
+	if err != nil {
+		log.Printf("Error unmarshalling forum results: %v", err)
+		return
+	}
+
+	log.Printf("Received forum results: %+v", results)
+	// Send results to resultsChan
+	go func() {
+		resultsChan <- results
+	}()
+}
+
+func fetchForumResults(query, safe, lang string, page int) []ForumSearchResult {
+	results, err := PerformRedditSearch(query, safe, page)
+	if err != nil {
+		log.Printf("Error fetching forum results: %v", err)
+		return nil
+	}
+	return results
+}