1 files changed, 113 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..f1be2cd
--- /dev/null
+++ b/internal/router/handlers/lang-blog-title.go
@@ -0,0 +1,113 @@
+package handlers
+
+import (
+	"bytes"
+	"fmt"
+	"html/template"
+	"strings"
+	"time"
+
+	"github.com/SayaAndy/saya-today-web/internal/b2"
+	"github.com/SayaAndy/saya-today-web/internal/frontmatter"
+	"github.com/SayaAndy/saya-today-web/internal/router"
+	"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) 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)
+	}
+
+	metadata, parsedMarkdown, err := readBlogPost(supplements.MarkdownRenderer, supplements.B2Client, lang+"/"+pathParts[2])
+	if err != nil {
+		return fiber.StatusNotFound, fmt.Errorf("failed to find '%s' post: %w", pathParts[2], 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["ParsedMarkdown"] = template.HTML(parsedMarkdown)
+	templateMap["PublishedDate"] = metadata.PublishedTime.Format("2006-01-02 15:04:05 -07:00")
+	templateMap["ActionDate"] = metadata.ActionDate
+
+	go supplements.ClientCache.View(c.IP(), pathParts[2])
+
+	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.B2Client.ReadFrontmatter(lang + "/" + pathParts[2] + ".md")
+	if err != nil {
+		return fiber.StatusNotFound, fmt.Errorf("could not read '%s' for metadata: %w", path, err)
+	}
+
+	templateMap["Title"] = metadata.Title
+	templateMap["PublishedDate"] = metadata.PublishedTime.Format("2006-01-02 15:04:05 -07:00")
+	templateMap["ActionDate"] = metadata.ActionDate
+
+	return fiber.StatusOK, nil
+}
+
+func readBlogPost(md goldmark.Markdown, b2Client *b2.B2Client, sourceName string) (metadata *frontmatter.Metadata, html string, err error) {
+	metadata, markdown, err := b2Client.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
+}