Diffstat (limited to 'internal/router/handlers/lang-blog-title.go')
| -rw-r--r-- | internal/router/handlers/lang-blog-title.go | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/internal/router/handlers/lang-blog-title.go b/internal/router/handlers/lang-blog-title.go new file mode 100644 index 0000000..76dc335 --- /dev/null +++ b/internal/router/handlers/lang-blog-title.go @@ -0,0 +1,182 @@ +package handlers + +import ( + "bytes" + "fmt" + "html/template" + "strings" + "time" + + "github.com/SayaAndy/saya-today-web/internal/blog" + "github.com/SayaAndy/saya-today-web/internal/frontmatter" + "github.com/SayaAndy/saya-today-web/internal/router" + "github.com/SayaAndy/saya-today-web/l10n" + "github.com/gofiber/fiber/v2" + "github.com/yuin/goldmark" +) + +func init() { + router.Routes = append(router.Routes, &BlogPageHandler{}) +} + +type BlogPageHandler struct { + router.BasicHandler +} + +func (r *BlogPageHandler) Filter() (method string, path string) { + return "GET", "/:lang/blog/:title" +} + +func (r *BlogPageHandler) IsTemplated() bool { + return true +} + +func (r *BlogPageHandler) TemplatesToInject() []string { + return []string{"views/pages/blog-page.html"} +} + +func (r *BlogPageHandler) ToCache() router.CacheSetting { + return router.ByUrlOnly +} + +func (r *BlogPageHandler) CacheDuration() time.Duration { + return 15 * time.Minute +} + +func (r *BlogPageHandler) ToValidateLang() router.LangSetting { + return router.InPath +} + +func (r *BlogPageHandler) SitemapInfo(supplements *router.Supplements) []router.SitemapInfo { + sitemapInfo := []router.SitemapInfo{} + + pages, err := supplements.BlogClient.Scan("") + if err != nil { + return sitemapInfo + } + + for _, page := range pages { + sitemapInfo = append(sitemapInfo, router.SitemapInfo{ + Loc: "/" + page.Lang + "/blog/" + page.FileName, + LastModified: page.ModifiedTime, + Priority: 1.0, + }) + } + + return sitemapInfo +} + +func (r *BlogPageHandler) AddMeta(c *fiber.Ctx, supplements *router.Supplements, lang string, templateMap fiber.Map) (meta []router.MetaField, err error) { + metadata, _, err := supplements.BlogClient.ReadFrontmatter(lang + "/" + c.Params("title") + ".md") + if err != nil { + return nil, fmt.Errorf("failed to read frontmatter of the desired blog post: %w", err) + } + title := metadata.Title + if metadata.Medley != "" { + title += " // " + l10n.T.GetPath(lang, "Medleys", metadata.Medley).(string) + } + + return []router.MetaField{ + {Property: "og:title", Content: title}, + {Property: "og:description", Content: fmt.Sprintf("%s [%s]", metadata.ShortDescription, metadata.ActionDate)}, + {Property: "og:image", Content: fmt.Sprintf(supplements.PhotoStorage.Thumbnail560p.BaseUrl, metadata.Thumbnail)}, + {Property: "og:url", Content: fmt.Sprintf("%s/%s/blog/%s", templateMap["CanonicalEndpoint"], lang, c.Params("title"))}, + {Property: "og:type", Content: "website"}, + {Name: "twitter:card", Content: "summary_large_image"}, + }, nil +} + +func (r *BlogPageHandler) AddLinkedData(c *fiber.Ctx, supplements *router.Supplements, lang string, templateMap fiber.Map) (ld map[string]any, err error) { + metadata, _, err := supplements.BlogClient.ReadFrontmatter(lang + "/" + c.Params("title") + ".md") + if err != nil { + return nil, fmt.Errorf("failed to read frontmatter of the desired blog post: %w", err) + } + title := metadata.Title + if metadata.Medley != "" { + title += " // " + l10n.T.GetPath(lang, "Medleys", metadata.Medley).(string) + } + + return map[string]any{ + "@context": "https://schema.org", + "@type": "Article", + "headline": title, + "description": fmt.Sprintf("%s [%s]", metadata.ShortDescription, metadata.ActionDate), + "author": map[string]string{"@type": "Person", "name": "Saya Andy"}, + "datePublished": metadata.PublishedTime.UTC().Format(time.RFC3339), + }, nil +} + +func (r *BlogPageHandler) RenderBody(c *fiber.Ctx, supplements *router.Supplements, lang string, templateMap fiber.Map) (statusCode int, err error) { + _, pathParts, _, err := router.GetPathFromReferer(c) + if err != nil { + return fiber.StatusBadRequest, fmt.Errorf("failed to get path from referer: %w", err) + } + title := pathParts[2] + + metadata, parsedMarkdown, err := readBlogPost(supplements.MarkdownRenderer, supplements.BlogClient, lang+"/"+title) + if err != nil { + return fiber.StatusNotFound, fmt.Errorf("failed to find '%s' post: %w", title, err) + } + + geolocationParts := strings.Split(metadata.Geolocation, " ") + var x, y, areaError string + if len(geolocationParts) >= 2 { + x = geolocationParts[0] + y = geolocationParts[1] + } + if len(geolocationParts) >= 3 { + areaError = geolocationParts[2] + } + + templateMap["MapLocationX"] = x + templateMap["MapLocationY"] = y + templateMap["MapLocationAreaMeters"] = areaError + templateMap["Title"] = metadata.Title + templateMap["Codename"] = title + templateMap["ParsedMarkdown"] = template.HTML(parsedMarkdown) + templateMap["PublishedDate"] = metadata.PublishedTime.Format("2006-01-02 15:04:05 -07:00") + templateMap["ActionDate"] = metadata.ActionDate + templateMap["ShortDescription"] = metadata.ShortDescription + templateMap["Thumbnail"] = metadata.Thumbnail + templateMap["Medley"] = metadata.Medley + + go supplements.ClientCache.View(c.IP(), title) + + return fiber.StatusOK, nil +} + +func (r *BlogPageHandler) RenderHeader(c *fiber.Ctx, supplements *router.Supplements, lang string, templateMap fiber.Map) (statusCode int, err error) { + path, pathParts, _, err := router.GetPathFromReferer(c) + if err != nil { + return fiber.StatusBadRequest, fmt.Errorf("failed to get path from referer: %w", err) + } + + metadata, _, err := supplements.BlogClient.ReadFrontmatter(lang + "/" + pathParts[2] + ".md") + if err != nil { + return fiber.StatusNotFound, fmt.Errorf("could not read '%s' for metadata: %w", path, err) + } + + pageTitle := metadata.Title + if metadata.Medley != "" { + pageTitle += " // " + l10n.T.GetPath(lang, "Medleys", metadata.Medley).(string) + } + + templateMap["Title"] = metadata.Title + templateMap["PageTitle"] = pageTitle + + return fiber.StatusOK, nil +} + +func readBlogPost(md goldmark.Markdown, blogClient blog.Client, sourceName string) (metadata *frontmatter.Metadata, html string, err error) { + metadata, markdown, err := blogClient.ReadFrontmatter(sourceName + ".md") + if err != nil { + return nil, "", fmt.Errorf("failed to read a frontmatter file: %w", err) + } + + var buf bytes.Buffer + if err := md.Convert(markdown, &buf); err != nil { + return nil, "", fmt.Errorf("convert source context from md to html: %w", err) + } + + return metadata, buf.String(), nil +} |