Scatter render.go contents everywhere

1 files changed, 60 insertions, 0 deletions

diff --git a/srv/src/api/index.go b/srv/src/api/index.go
new file mode 100644
index 0000000..5fb5a4f
--- /dev/null
+++ b/srv/src/api/index.go
@@ -0,0 +1,60 @@
+package api
+
+import (
+	"fmt"
+	"net/http"
+	"path/filepath"
+	"strings"
+
+	"github.com/mediocregopher/blog.mediocregopher.com/srv/api/apiutil"
+	"github.com/mediocregopher/blog.mediocregopher.com/srv/post"
+)
+
+func (a *api) renderIndexHandler() http.Handler {
+
+	tpl := a.mustParseBasedTpl("index.html")
+	const pageCount = 10
+
+	return http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
+
+		if path := r.URL.Path; !strings.HasSuffix(path, "/") && filepath.Base(path) != "index.html" {
+			http.Error(rw, "Page not found", 404)
+			return
+		}
+
+		page, err := apiutil.StrToInt(r.FormValue("p"), 0)
+		if err != nil {
+			apiutil.BadRequest(
+				rw, r, fmt.Errorf("invalid page number: %w", err),
+			)
+			return
+		}
+
+		posts, hasMore, err := a.params.PostStore.WithOrderDesc().Get(page, pageCount)
+		if err != nil {
+			apiutil.InternalServerError(
+				rw, r, fmt.Errorf("fetching page %d of posts: %w", page, err),
+			)
+			return
+		}
+
+		tplPayload := struct {
+			Posts              []post.StoredPost
+			PrevPage, NextPage int
+		}{
+			Posts:    posts,
+			PrevPage: -1,
+			NextPage: -1,
+		}
+
+		if page > 0 {
+			tplPayload.PrevPage = page - 1
+		}
+
+		if hasMore {
+			tplPayload.NextPage = page + 1
+		}
+
+		executeTemplate(rw, r, tpl, tplPayload)
+	})
+}