adding summarization and restructure project

golang/cmd/frontend/Index.go

@@ -0,0 +1,31 @@
+package main
+
+import (
+	"crowsnest/internal/model"
+	"html/template"
+	"net/http"
+)
+
+// List the latest articles using the base template.
+func (app *App) Index(w http.ResponseWriter, req *http.Request) {
+	// get articles
+	articles, err := app.articles.All(30)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	// convert to viewmodel
+	articleVMs := make([]*model.ArticleViewModel, 0, len(articles))
+	for _, a := range articles {
+		articleVMs = append(articleVMs, a.ViewModel())
+	}
+
+	// render template
+	t := template.Must(template.ParseFiles("assets/templates/article.html", "assets/templates/layout.html"))
+	err = t.ExecuteTemplate(w, "base", articleVMs)
+	if err != nil {
+		http.Error(w, "Failed to render template", http.StatusInternalServerError)
+		return
+	}
+}

golang/cmd/frontend/UpSearch.go

@@ -0,0 +1,40 @@
+package main
+
+import (
+	"crowsnest/internal/model"
+	"html/template"
+	"net/http"
+)
+
+// Enpoint that returns a list of articles given search terms in the post
+// request of a search form. Uses the content template.
+func (app *App) UpSearch(w http.ResponseWriter, req *http.Request) {
+	// construct search query
+	searchTerms := req.FormValue("search")
+	if searchTerms == "" {
+		app.Index(w, req)
+		return
+	}
+
+	// get articles
+	articles, err := app.articles.Search(searchTerms)
+	if err != nil {
+		// treat as no result
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	// convert to viewmodel
+	articleVMs := make([]*model.ArticleViewModel, 0, len(articles))
+	for _, a := range articles {
+		articleVMs = append(articleVMs, a.ViewModel())
+	}
+
+	// render template
+	t := template.Must(template.ParseFiles("assets/templates/article.html"))
+	err = t.ExecuteTemplate(w, "content", articleVMs)
+	if err != nil {
+		http.Error(w, "Failed to render template", http.StatusInternalServerError)
+		return
+	}
+}

golang/cmd/frontend/main.go

@@ -0,0 +1,41 @@
+package main
+
+import (
+	"crowsnest/internal/model/database"
+	"database/sql"
+	"log"
+	"net/http"
+	"os"
+
+	_ "github.com/lib/pq"
+)
+
+type App struct {
+	articles *database.ArticleModel
+}
+
+func main() {
+	// collect environement variables
+	databaseURL := os.Getenv("DB_URL")
+
+	// connect to database
+	db, err := sql.Open("postgres", databaseURL)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer db.Close()
+
+	// define app
+	app := &App{
+		articles: &database.ArticleModel{DB: db},
+	}
+
+	// start web server
+	server := http.Server{
+		Addr:    ":8080",
+		Handler: app.routes(),
+	}
+
+	log.Println("server started, listening on :8080")
+	server.ListenAndServe()
+}

golang/cmd/frontend/routes.go

@@ -0,0 +1,19 @@
+package main
+
+import (
+	"net/http"
+)
+
+func (app *App) routes() http.Handler {
+    mux := http.NewServeMux()
+
+    // dynamic routes
+    mux.HandleFunc("GET /", app.Index)
+    mux.HandleFunc("POST /up/search", app.UpSearch)
+
+    // serve files from the "static" directory
+	fs := http.FileServer(http.Dir("assets/static"))
+	mux.Handle("GET /static/", http.StripPrefix("/", fs))
+
+    return mux
+}