frontend

internal/server/handlers_news.go

@@ -0,0 +1,52 @@
+package server
+
+import (
+	"database/sql"
+	"encoding/json"
+	"net/http"
+)
+
+type newsItem struct {
+	ID          int    `json:"id"`
+	Ticker      string `json:"ticker"`
+	Headline    string `json:"headline"`
+	Source      string `json:"source"`
+	URL         string `json:"url"`
+	Sentiment   string `json:"sentiment"`
+	PublishedAt string `json:"published_at"`
+}
+
+func (s *Server) handleGetNews(w http.ResponseWriter, r *http.Request) {
+	ticker := r.URL.Query().Get("ticker")
+
+	var rows *sql.Rows
+	var err error
+
+	if ticker != "" {
+		rows, err = s.db.Query(`
+			SELECT id, COALESCE(ticker,''), headline, COALESCE(source,''), COALESCE(url,''), COALESCE(sentiment,''), COALESCE(published_at,'')
+			FROM news WHERE ticker = ? ORDER BY published_at DESC LIMIT 100`, ticker)
+	} else {
+		rows, err = s.db.Query(`
+			SELECT id, COALESCE(ticker,''), headline, COALESCE(source,''), COALESCE(url,''), COALESCE(sentiment,''), COALESCE(published_at,'')
+			FROM news ORDER BY published_at DESC LIMIT 100`)
+	}
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	defer rows.Close()
+
+	items := []newsItem{}
+	for rows.Next() {
+		var it newsItem
+		if err := rows.Scan(&it.ID, &it.Ticker, &it.Headline, &it.Source, &it.URL, &it.Sentiment, &it.PublishedAt); err != nil {
+			http.Error(w, err.Error(), http.StatusInternalServerError)
+			return
+		}
+		items = append(items, it)
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	json.NewEncoder(w).Encode(items)
+}