1 files changed, 76 insertions, 0 deletions
diff --git a/internal/router/lang-blog-title.go b/internal/router/lang-blog-title.go
new file mode 100644
index 0000000..39d4252
--- /dev/null
+++ b/internal/router/lang-blog-title.go
@@ -0,0 +1,76 @@
+package router
+
+import (
+	"bytes"
+	"fmt"
+	"html/template"
+	"log/slog"
+	"slices"
+	"strconv"
+	"strings"
+
+	"github.com/SayaAndy/saya-today-web/internal/b2"
+	"github.com/SayaAndy/saya-today-web/internal/frontmatter"
+	"github.com/SayaAndy/saya-today-web/internal/templatemanager"
+	"github.com/SayaAndy/saya-today-web/locale"
+	"github.com/gofiber/fiber/v2"
+	"github.com/yuin/goldmark"
+)
+
+func Lang_Blog_Title(tm *templatemanager.TemplateManager, l map[string]*locale.LocaleConfig, langs []string, b2Client *b2.B2Client, md goldmark.Markdown) func(c *fiber.Ctx) error {
+	return func(c *fiber.Ctx) error {
+		lang := c.Params("lang")
+		if !slices.Contains(langs, lang) {
+			c.Set(fiber.HeaderContentType, fiber.MIMETextPlainCharsetUTF8)
+			return c.Status(fiber.ErrNotFound.Code).SendString(fmt.Sprintf("server does not support '%s' language... yet??", lang))
+		}
+
+		metadata, parsedMarkdown, err := readBlogPost(md, b2Client, lang+"/"+c.Params("title"))
+		if err != nil {
+			c.Set(fiber.HeaderContentType, fiber.MIMETextPlainCharsetUTF8)
+			return c.Status(fiber.ErrNotFound.Code).SendString(fmt.Sprintf("failed to find '%s' post", c.Params("title")))
+		}
+
+		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]
+		}
+
+		content, err := tm.Render("blog-page", fiber.Map{
+			"Title":                 metadata.Title,
+			"PublishedDate":         metadata.PublishedTime.Format("2006-01-02 15:04:05 -07:00"),
+			"PublishedYear":         strconv.Itoa(metadata.PublishedTime.Year()),
+			"ParsedMarkdown":        template.HTML(parsedMarkdown),
+			"MapLocationX":          x,
+			"MapLocationY":          y,
+			"MapLocationAreaMeters": areaError,
+			"Lang":                  lang,
+		})
+		if err != nil {
+			slog.Warn("failed to generate page", slog.String("page", "/"+lang+"/blog/"+c.Params("title")), slog.String("error", err.Error()))
+			c.Set(fiber.HeaderContentType, fiber.MIMETextPlainCharsetUTF8)
+			return c.Status(fiber.ErrInternalServerError.Code).SendString("failed to generate page")
+		}
+
+		return c.Type("html").Send(content)
+	}
+}
+
+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
+}