feat: prototyping of blog system with forgejo

handlers/pages/blog.go

@@ -0,0 +1,96 @@
+package pages
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"path"
+
+	"forge.capytal.company/capytalcode/project-comicverse/lib/router"
+	"forge.capytal.company/capytalcode/project-comicverse/lib/router/rerrors"
+)
+
+type Blog struct {
+	repo     string
+	owner    string
+	endpoint string
+}
+
+func NewBlog(repo, owner, endpoint string) *Blog {
+	u, err := url.Parse(endpoint)
+	if err != nil {
+		panic(fmt.Sprintf("Blog Forgejo endpoint is not a valid URL: %v", err))
+	}
+	return &Blog{repo: repo, owner: owner, endpoint: u.String()}
+}
+
+func (p *Blog) Routes() router.Router {
+	r := router.NewRouter()
+
+	r.HandleFunc("/", p.listPosts)
+
+	return r
+}
+
+func (p *Blog) listPosts(w http.ResponseWriter, r *http.Request) {
+	_, body, rerr := p.get(fmt.Sprintf("/repos/%s/%s/contents/daily-blogs", p.owner, p.repo))
+	if rerr != nil {
+		rerr.ServeHTTP(w, r)
+		return
+	}
+
+	var list []forgejoFile
+
+	err := json.Unmarshal(body, &list)
+	if err != nil {
+		rerrors.InternalError(errors.New("failed to parse list of entries"), err).ServeHTTP(w, r)
+		return
+	}
+
+	w.WriteHeader(http.StatusOK)
+	_, err = w.Write([]byte(fmt.Sprintf("%v", list)))
+	if err != nil {
+		rerrors.InternalError(err).ServeHTTP(w, r)
+	}
+}
+
+func (p *Blog) get(endpoint string) (http.Header, []byte, *rerrors.RouteError) {
+	u, _ := url.Parse(p.endpoint)
+	u.Path = path.Join(u.Path, endpoint)
+
+	r, err := http.Get(u.String())
+	if err != nil {
+		e := rerrors.InternalError(
+			fmt.Errorf("failed to make request to endpoint %s", u.String()),
+			err,
+		)
+		return nil, nil, &e
+	}
+
+	body, err := io.ReadAll(r.Body)
+	if err != nil {
+		e := rerrors.InternalError(
+			fmt.Errorf("failed to read response body of request to endpoint %s", u.String()),
+			err,
+		)
+		return nil, nil, &e
+	} else if r.StatusCode != http.StatusOK {
+		e := rerrors.InternalError(
+			fmt.Errorf("request to endpoint %s returned non-200 code %q.\n%s", u.String(), r.Status, string(body)),
+		)
+		return nil, nil, &e
+	}
+
+	return r.Header, body, nil
+}
+
+type forgejoFile struct {
+	Name          string `json:"name"`
+	Path          string `json:"path"`
+	Sha           string `json:"sha"`
+	LastCommitSha string `json:"last_commit_sha"`
+	Type          string `json:"type"`
+}

handlers/pages/routes.go

@@ -17,9 +17,8 @@ func Routes(log *slog.Logger) router.Router {
 	r.Handle("/", &IndexPage{})
 	r.Handle("/about", &AboutPage{})
 
-	b := blog.NewGiteaBlog("dot013", "blog", "https://forge.capytal.company/api/v1")
-
-	r.Handle("/blog/{path...}", http.StripPrefix("/blog/", b))
+	b := NewBlog("dot013", "blog", "https://forge.capytal.company/api/v1")
+	r.Handle("/blog/", b.Routes())
 
 	return r
 }