move middleware and routes/ app into internal dir

src/internal/app/Index.go

@@ -0,0 +1,59 @@
+package app
+
+import (
+	"crowsnest/internal/model"
+	"html/template"
+	"net/http"
+	"strconv"
+)
+
+// List the latest articles using the base template.
+func (app *App) Index(w http.ResponseWriter, req *http.Request) {
+	const pageSize = 15
+	var limit, offset, pageId uint64 = pageSize, 0, 0
+	var err error
+
+	// get page number
+	if pageId, err = strconv.ParseUint(req.PathValue("id"), 10, 32); err == nil {
+		pageId--
+		offset = pageId * pageSize
+	}
+
+	// get articles
+	articles, err := app.articles.All(int(limit), int(offset))
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
+	// get count of total articles
+	totalCount, err := app.articles.CountAll()
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+	totalCount /= pageSize
+
+	// 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",
+		"assets/templates/components/pagination.html"))
+
+	data := map[string]interface{}{
+		"SelectedNavItemArticle": true,
+		"ArticleVMs":             &articleVMs,
+		"Paginations":            model.NewPaginationViewModel(uint(pageId+1), totalCount+1),
+	}
+	err = t.ExecuteTemplate(w, "base", data)
+	if err != nil {
+		http.Error(w, "Failed to render template", http.StatusInternalServerError)
+		return
+	}
+}

src/internal/app/UpSearch.go

@@ -0,0 +1,40 @@
+package app
+
+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
+	}
+}

src/internal/app/app.go

@@ -0,0 +1,32 @@
+package app
+
+import (
+	"crowsnest/internal/model/database"
+	"database/sql"
+	"net/http"
+)
+
+type App struct {
+	articles *database.ArticleModel
+}
+
+func NewApp(db *sql.DB) *App {
+	return &App{
+		articles: &database.ArticleModel{DB: db},
+	}
+}
+
+func (app *App) Routes() http.Handler {
+	mux := http.NewServeMux()
+
+	// dynamic routes
+	mux.Handle("GET /", http.HandlerFunc(app.Index))
+	mux.Handle("GET /page/{id}", http.HandlerFunc(app.Index))
+	mux.Handle("POST /up/search", http.HandlerFunc(app.UpSearch))
+
+	// serve files from the "static" directory
+	fs := http.FileServer(http.Dir("assets/static"))
+	mux.Handle("GET /static/", http.StripPrefix("/", fs))
+
+	return mux
+}