reprogl

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package handlers
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import (
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	"errors"
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	"net/http"
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	"strconv"
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	"time"
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	"github.com/go-chi/chi/v5"
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	"xelbot.com/reprogl/container"
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	"xelbot.com/reprogl/models"
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	"xelbot.com/reprogl/models/repositories"
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	"xelbot.com/reprogl/session"
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	"xelbot.com/reprogl/views"
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)
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func PageAction(app *container.Application) http.HandlerFunc {
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	return func(w http.ResponseWriter, r *http.Request) {
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		slug := chi.URLParam(r, "slug")
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		var isAdmin bool
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		if user, ok := session.GetIdentity(r.Context()); ok {
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			isAdmin = user.IsAdmin()
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		}
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		repo := repositories.ArticleRepository{DB: app.DB}
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		article, err := repo.GetBySlug(slug, isAdmin)
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		if err != nil {
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			if errors.Is(err, models.RecordNotFound) {
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				app.NotFound(w)
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			} else {
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				app.ServerError(w, err)
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			}
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			return
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		}
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		tagRepo := repositories.TagRepository{DB: app.DB}
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		article.Tags, err = tagRepo.GetCollectionByArticle(article)
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		if err != nil {
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			app.ServerError(w, err)
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			return
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		}
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		commentRepo := repositories.CommentRepository{DB: app.DB}
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		lastUpdate, err := commentRepo.GetLastUpdate(article.ID)
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		if err != nil {
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			app.ServerError(w, err)
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			return
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		}
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		cache := app.GetIntCache()
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		var recentID int
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		var found bool
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		if recentID, found = cache.Get("last_recent_id"); !found {
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			recentID, err = repo.GetLastRecentPostsID()
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			if err != nil {
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				app.ServerError(w, err)
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				return
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			}
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			cache.Set("last_recent_id", recentID, 24*time.Hour)
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		}
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		if article.ID >= recentID {
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			article.RecentPostsID = strconv.Itoa(article.ID)
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		} else {
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			article.RecentPostsID = "0"
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		}
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		templateData := views.NewArticlePageData(
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			article,
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			lastUpdate,
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			r.Header.Get("Accept"),
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		)
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		cfg := container.GetConfig()
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		templateData.AppendTitle(article.Title)
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		templateData.SetCanonical(container.GenerateAbsoluteURL("article", "slug", slug))
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		templateData.SetOpenGraphProperty("og:type", "article")
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		templateData.SetOpenGraphProperty("article:published_time", article.CreatedAt.Format(time.RFC3339))
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		templateData.SetOpenGraphProperty("article:modified_time", article.UpdatedAt.Format(time.RFC3339))
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		templateData.SetOpenGraphProperty("article:author", cfg.Author.FullName)
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		if article.HasImage() {
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			image := article.SrcImageForOpenGraph()
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			if image != nil {
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				templateData.SetOpenGraphProperty("og:image", cfg.CDNBaseURL+"/uploads/"+image.Path)
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				templateData.SetOpenGraphProperty("og:image:width", strconv.Itoa(image.Width))
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				templateData.SetOpenGraphProperty("og:image:height", strconv.Itoa(image.Height))
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			}
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			if article.Alt.Valid && len(article.Alt.String) > 0 {
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				templateData.SetOpenGraphProperty("og:image:alt", article.Alt.String)
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			}
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		}
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		err = views.WriteTemplateWithContext(r.Context(), w, "article.gohtml", templateData)
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		if err != nil {
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			app.ServerError(w, err)
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		}
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	}
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}
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