From 4f01edb9230f58ff84b0dd892c931ec8ac9aad55 Mon Sep 17 00:00:00 2001
From: Brian Picciano <mediocregopher@gmail.com>
Date: Tue, 13 Sep 2022 12:56:08 +0200
Subject: move src out of srv, clean up default.nix and Makefile

---
 src/http/drafts.go | 130 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 130 insertions(+)
 create mode 100644 src/http/drafts.go

(limited to 'src/http/drafts.go')

diff --git a/src/http/drafts.go b/src/http/drafts.go
new file mode 100644
index 0000000..cb776b0
--- /dev/null
+++ b/src/http/drafts.go
@@ -0,0 +1,130 @@
+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)
+	})
+}
+
+func (a *api) postDraftPostHandler() http.Handler {
+	return http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
+
+		p, err := postFromPostReq(r)
+		if err != nil {
+			apiutil.BadRequest(rw, r, err)
+			return
+		}
+
+		if err := a.params.PostDraftStore.Set(p); err != nil {
+			apiutil.InternalServerError(
+				rw, r, fmt.Errorf("storing post with id %q: %w", p.ID, err),
+			)
+			return
+		}
+
+		a.executeRedirectTpl(rw, r, a.draftURL(p.ID, false)+"?edit")
+	})
+}
-- 
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