1 files changed, 96 insertions, 0 deletions
diff --git a/main.go b/main.go
new file mode 100644
index 0000000..eb56d90
--- /dev/null
+++ b/main.go
@@ -0,0 +1,96 @@
+package main
+
+import (
+	"fmt"
+	"html/template"
+	"io"
+	"log"
+	"net/http"
+	"os"
+	"strings"
+	"github.com/joho/godotenv"
+)
+
+const youtubeAPI = "https://www.googleapis.com/youtube/v3/"
+var tmpl = template.Must(template.ParseFiles("template.html"))
+
+func apiRequest(w http.ResponseWriter, r *http.Request, endpoint string, videoIdParam string, part string) {
+	videoID := r.URL.Query().Get("id")
+	if videoID == "" {
+		msg := "Missing ?id=VIDEO_ID parameter"
+		http.Error(w, msg, http.StatusBadRequest)
+		return
+	}
+
+	apiKey := os.Getenv("API_KEY")
+	if apiKey == "" {
+		msg := "API_KEY environment variable not set"
+		http.Error(w, msg, http.StatusInternalServerError)
+		log.Println(msg)
+		return
+	}
+
+	//url := fmt.Sprintf("%s?part=snippet&id=%s&key=%s", youtubeAPI, videoID, apiKey)
+	url := fmt.Sprintf("%s?part=%s&%s=%s&key=%s", youtubeAPI + endpoint, part, videoIdParam, videoID, apiKey)
+	resp, err := http.Get(url)
+	if err != nil {
+		msg := "Failed to fetch video info: " + err.Error()
+		http.Error(w, msg, http.StatusInternalServerError)
+		log.Println(msg)
+		return
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		msg := "YouTube API error: " + resp.Status
+		http.Error(w, msg, http.StatusBadGateway)
+		log.Println(msg)
+		return
+	}
+
+	w.Header().Set("Content-Type", "application/json")
+	io.Copy(w, resp.Body)
+}
+
+func videoDetailsHandler(w http.ResponseWriter, r *http.Request) {
+	apiRequest(w, r, "videos", "id", "snippet,statistics,topicDetails")
+}
+
+func commentThreadsHandler(w http.ResponseWriter, r *http.Request) {
+	apiRequest(w, r, "commentThreads", "videoId", "snippet,replies&maxResults=100")
+}
+
+func handler(w http.ResponseWriter, r *http.Request) {
+	path := strings.Trim(r.URL.Path, "/")
+	if path == "" {
+		path = "world"
+	}
+	data := struct {
+		Id string
+	}{
+		Id: path,
+	}
+	err := tmpl.Execute(w, data)
+	if err != nil {
+		msg := "Template execution error"
+		http.Error(w, msg, http.StatusInternalServerError)
+		log.Println(msg)
+	}
+}
+
+func main() {
+	// load .env file if it exists
+	godotenv.Load()
+
+	// setup routes
+	http.Handle("/static/", http.StripPrefix("/static/", http.FileServer(http.Dir("static"))))
+	http.HandleFunc("/api/details", videoDetailsHandler)
+	http.HandleFunc("/api/comments", commentThreadsHandler)
+
+	http.HandleFunc("/", handler)
+	log.Println("Listening on http://localhost:8080")
+	err := http.ListenAndServe(":8080", nil)
+	if err != nil {
+		log.Fatal(err)
+	}
+}