Scatter render.go contents everywhere

1 files changed, 114 insertions, 0 deletions

diff --git a/srv/src/api/posts.go b/srv/src/api/posts.go
new file mode 100644
index 0000000..87806c7
--- /dev/null
+++ b/srv/src/api/posts.go
@@ -0,0 +1,114 @@
+package api
+
+import (
+	"errors"
+	"fmt"
+	"html/template"
+	"net/http"
+	"path/filepath"
+	"strings"
+
+	"github.com/gomarkdown/markdown"
+	"github.com/gomarkdown/markdown/html"
+	"github.com/gomarkdown/markdown/parser"
+	"github.com/mediocregopher/blog.mediocregopher.com/srv/api/apiutil"
+	"github.com/mediocregopher/blog.mediocregopher.com/srv/post"
+)
+
+func (a *api) renderPostHandler() http.Handler {
+
+	tpl := a.mustParseBasedTpl("post.html")
+
+	return http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
+
+		id := strings.TrimSuffix(filepath.Base(r.URL.Path), ".html")
+
+		storedPost, err := a.params.PostStore.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
+		}
+
+		parserExt := parser.CommonExtensions | parser.AutoHeadingIDs
+		parser := parser.NewWithExtensions(parserExt)
+
+		htmlFlags := html.CommonFlags | html.HrefTargetBlank
+		htmlRenderer := html.NewRenderer(html.RendererOptions{Flags: htmlFlags})
+
+		renderedBody := markdown.ToHTML([]byte(storedPost.Body), parser, htmlRenderer)
+
+		tplPayload := struct {
+			post.StoredPost
+			SeriesPrevious, SeriesNext *post.StoredPost
+			Body                       template.HTML
+		}{
+			StoredPost: storedPost,
+			Body:       template.HTML(renderedBody),
+		}
+
+		if series := storedPost.Series; series != "" {
+
+			seriesPosts, err := a.params.PostStore.GetBySeries(series)
+			if err != nil {
+				apiutil.InternalServerError(
+					rw, r,
+					fmt.Errorf("fetching posts for series %q: %w", series, err),
+				)
+				return
+			}
+
+			var foundThis bool
+
+			for i := range seriesPosts {
+
+				seriesPost := seriesPosts[i]
+
+				if seriesPost.ID == storedPost.ID {
+					foundThis = true
+					continue
+				}
+
+				if !foundThis {
+					tplPayload.SeriesPrevious = &seriesPost
+					continue
+				}
+
+				tplPayload.SeriesNext = &seriesPost
+				break
+			}
+		}
+
+		executeTemplate(rw, r, tpl, tplPayload)
+	})
+}
+
+func (a *api) renderPostAssetsIndexHandler() http.Handler {
+
+	tpl := a.mustParseBasedTpl("assets.html")
+
+	return http.HandlerFunc(func(rw http.ResponseWriter, r *http.Request) {
+
+		ids, err := a.params.PostAssetStore.List()
+
+		if err != nil {
+			apiutil.InternalServerError(
+				rw, r, fmt.Errorf("getting list of asset ids: %w", err),
+			)
+			return
+		}
+
+		tplPayload := struct {
+			IDs []string
+		}{
+			IDs: ids,
+		}
+
+		executeTemplate(rw, r, tpl, tplPayload)
+	})
+}