add search

cmd/frontend/main.go

@@ -7,13 +7,28 @@ import (
 	"fmt"
 	"html/template"
 	"net/http"
+	"strings"
 )
 
 type articleDateOrder struct {}
 func (ord articleDateOrder) Weight(a *model.Article) int {
-    return int(a.PublishDate.Unix()) * -1
+    return int(a.PublishDate.Unix())
 }
 
+type articleTermFrequency struct {
+    terms []string
+}
+func (ord articleTermFrequency) Weight(a *model.Article) int {
+    score := 0
+    for _, term := range ord.terms {
+        term = strings.TrimSpace(term)
+        if term == "" { continue }
+        score += strings.Count(a.Content, term)
+    }
+    return score
+}
+
+
 func index(w http.ResponseWriter, req *http.Request) {
     fds, _ := data.NewFileDatastore("./persistence/spiegel100.json")
     
@@ -24,9 +39,29 @@ func index(w http.ResponseWriter, req *http.Request) {
     _ = t.ExecuteTemplate(w, "base", articles[:10])
 }
 
+func search(w http.ResponseWriter, req *http.Request) {
+    // Parse the form data
+    err := req.ParseForm()
+    if err != nil {
+        http.Error(w, "Unable to parse form", http.StatusBadRequest)
+        return
+    }
+    searchTerms := strings.Split(req.FormValue("search"), " ")
+
+
+    fds, _ := data.NewFileDatastore("./persistence/spiegel100.json")
+    
+    repo, _ := data.NewDefaultRepository[*model.Article](fds, "article")
+    articles, _ := repo.GetByCriteria(articleTermFrequency{ terms: searchTerms })
+
+    t := template.Must(template.ParseFiles("templates/article.html", "templates/layout.html"))
+    _ = t.ExecuteTemplate(w, "base", articles)
+}
+
 func main() {
     // routes
     http.HandleFunc("/", index)
+    http.HandleFunc("/search", search)
 
     // serve files from the "static" directory
 	fs := http.FileServer(http.Dir("./static"))