drafts functionality added, needs a publish button still

1 files changed, 110 insertions, 0 deletions

diff --git a/srv/src/http/drafts.go b/srv/src/http/drafts.go
new file mode 100644
index 0000000..8bb08e5
--- /dev/null
+++ b/srv/src/http/drafts.go
@@ -0,0 +1,110 @@
+package http
+
+import (
+	"errors"
+	"fmt"
+	"net/http"
+	"path/filepath"
+	"strings"
+
+	"github.com/mediocregopher/blog.mediocregopher.com/srv/http/apiutil"
+	"github.com/mediocregopher/blog.mediocregopher.com/srv/post"
+)
+
+func (a *api) renderDraftPostHandler() http.Handler {
+
+	tpl := a.mustParseBasedTpl("post.html")
+	renderDraftPostsIndexHandler := a.renderDraftPostsIndexHandler()
+	renderDraftEditPostHandler := a.renderEditPostHandler(true)
+
+	return http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
+
+		id := strings.TrimSuffix(filepath.Base(r.URL.Path), ".html")
+
+		if id == "/" {
+			renderDraftPostsIndexHandler.ServeHTTP(rw, r)
+			return
+		}
+
+		if _, ok := r.URL.Query()["edit"]; ok {
+			renderDraftEditPostHandler.ServeHTTP(rw, r)
+			return
+		}
+
+		p, err := a.params.PostDraftStore.GetByID(id)
+
+		if errors.Is(err, post.ErrPostNotFound) {
+			http.Error(rw, "Post not found", 404)
+			return
+		} else if err != nil {
+			apiutil.InternalServerError(
+				rw, r, fmt.Errorf("fetching post with id %q: %w", id, err),
+			)
+			return
+		}
+
+		tplPayload, err := a.postToPostTplPayload(post.StoredPost{Post: p})
+
+		if err != nil {
+			apiutil.InternalServerError(
+				rw, r, fmt.Errorf(
+					"generating template payload for post with id %q: %w",
+					id, err,
+				),
+			)
+			return
+		}
+
+		executeTemplate(rw, r, tpl, tplPayload)
+	})
+}
+
+func (a *api) renderDraftPostsIndexHandler() http.Handler {
+
+	renderEditPostHandler := a.renderEditPostHandler(true)
+	tpl := a.mustParseBasedTpl("draft-posts.html")
+	const pageCount = 20
+
+	return http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
+
+		if _, ok := r.URL.Query()["edit"]; ok {
+			renderEditPostHandler.ServeHTTP(rw, r)
+			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.PostDraftStore.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.Post
+			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)
+	})
+}