1 files changed, 137 insertions, 0 deletions
diff --git a/internal/router/api-v1-general-page-body.go b/internal/router/api-v1-general-page-body.go
new file mode 100644
index 0000000..419bad6
--- /dev/null
+++ b/internal/router/api-v1-general-page-body.go
@@ -0,0 +1,137 @@
+package router
+
+import (
+	"fmt"
+	"html/template"
+	"log/slog"
+	"net/url"
+	"regexp"
+	"slices"
+	"strings"
+
+	"github.com/SayaAndy/saya-today-web/internal/b2"
+	"github.com/SayaAndy/saya-today-web/locale"
+	"github.com/gofiber/fiber/v2"
+	"github.com/yuin/goldmark"
+)
+
+func init() {
+	tm.Add("general-page-body", "views/partials/general-page-body.html")
+}
+
+func Api_V1_GeneralPage_Body(l map[string]*locale.LocaleConfig, langs []string, b2Client *b2.B2Client, md goldmark.Markdown) func(c *fiber.Ctx) error {
+	return func(c *fiber.Ctx) error {
+		c.Set(fiber.HeaderContentType, fiber.MIMETextPlainCharsetUTF8)
+
+		referer := c.Get("Referer", "")
+		if referer == "" {
+			return c.Status(fiber.ErrBadRequest.Code).SendString("'Referer' header is empty")
+		}
+		urlStruct, err := url.ParseRequestURI(referer)
+		if err != nil {
+			return c.Status(fiber.ErrBadRequest.Code).SendString(fmt.Sprintf("'Referer' header is invalid: %s", err.Error()))
+		}
+
+		path := urlStruct.EscapedPath()
+		pathParts := strings.Split(strings.Trim(path, "/"), "/")
+		if len(pathParts) < 2 {
+			return c.Status(fiber.ErrBadRequest.Code).SendString("'Referer' header is invalid: expect format '/{lang}/...'")
+		}
+
+		lang := pathParts[0]
+		if !slices.Contains(langs, lang) {
+			return c.Status(fiber.ErrNotFound.Code).SendString(fmt.Sprintf("server does not support '%s' language... yet??", lang))
+		}
+
+		values := fiber.Map{
+			"L":    l[lang],
+			"Lang": lang,
+		}
+		var additionalTemplates []string
+
+		if len(pathParts) == 2 && pathParts[1] == "blog" {
+			querySort := c.Query("sort")
+			if querySort == "" {
+				querySort = "publicationDateDesc"
+			}
+
+			encodedQuery := c.Request().URI().QueryString()
+			re, err := regexp.Compile(`tags\[\]=([\w]+)`)
+			if err != nil {
+				slog.Warn("failed to generate regex for tags gathering", slog.String("error", err.Error()))
+				return c.Status(fiber.ErrInternalServerError.Code).SendString("failed to generate regex for tags gathering")
+			}
+			decodedQuery, _ := url.QueryUnescape(string(encodedQuery))
+			matches := re.FindAllStringSubmatch(decodedQuery, -1)
+
+			queryTags := make([]string, 0, len(matches))
+			for _, match := range matches {
+				queryTags = append(queryTags, string(match[1]))
+			}
+
+			pages, err := b2Client.Scan(lang + "/")
+			if err != nil {
+				slog.Warn("failed to scan pages via b2", slog.String("error", err.Error()))
+				return c.Status(fiber.ErrInternalServerError.Code).SendString(fmt.Sprintf("failed to scan pages via b2: %s", slog.String("error", err.Error())))
+			}
+
+			tagsMap := make(map[string]int)
+			for _, page := range pages {
+				for _, tag := range page.Metadata.Tags {
+					tagsMap[tag]++
+				}
+			}
+			slog.Debug("enlist pages for catalogue", slog.Int("tag_count", len(tagsMap)), slog.Int("page_count", len(pages)), slog.String("path", c.Path()))
+
+			type Tag struct {
+				Name  string `json:"Name" yaml:"name"`
+				Count int    `json:"Count" yaml:"count"`
+			}
+
+			tagsArray := make([]Tag, 0, len(tagsMap))
+			for tag, count := range tagsMap {
+				tagsArray = append(tagsArray, Tag{tag, count})
+			}
+			slices.SortFunc(tagsArray, func(a Tag, b Tag) int {
+				return strings.Compare(a.Name, b.Name)
+			})
+
+			values["Tags"] = tagsArray
+			values["QuerySort"] = querySort
+			values["QueryTags"] = strings.Join(queryTags, ",")
+
+			additionalTemplates = append(additionalTemplates, "views/pages/blog-catalogue.html")
+		} else if len(pathParts) == 3 && pathParts[1] == "blog" {
+			metadata, parsedMarkdown, err := readBlogPost(md, b2Client, lang+"/"+pathParts[2])
+			if err != nil {
+				return c.Status(fiber.ErrNotFound.Code).SendString(fmt.Sprintf("failed to find '%s' post", pathParts[2]))
+			}
+
+			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]
+			}
+
+			values["ParsedMarkdown"] = template.HTML(parsedMarkdown)
+			values["MapLocationX"] = x
+			values["MapLocationY"] = y
+			values["MapLocationAreaMeters"] = areaError
+
+			additionalTemplates = append(additionalTemplates, "views/pages/blog-page.html")
+		}
+
+		content, err := tm.Render("general-page-body", values, additionalTemplates...)
+		if err != nil {
+			slog.Warn("failed to generate div", slog.String("path", path), slog.String("error", err.Error()))
+			return c.Status(fiber.ErrInternalServerError.Code).SendString("failed to generate div")
+		}
+
+		c.Set(fiber.HeaderContentType, fiber.MIMETextHTMLCharsetUTF8)
+		return c.Status(fiber.StatusOK).Type("html").Send(content)
+	}
+}