package htmx

import (
	"net/http"
	"net/url"
	"time"

	"code.nonshy.com/nonshy/website/pkg/log"
	"code.nonshy.com/nonshy/website/pkg/middleware"
	"code.nonshy.com/nonshy/website/pkg/models"
	"code.nonshy.com/nonshy/website/pkg/session"
	"code.nonshy.com/nonshy/website/pkg/templates"
)

// Statistics and social activity on the user's profile page.
func UserProfileActivityCard() http.HandlerFunc {
	tmpl := templates.MustLoadCustom("partials/htmx/profile_activity.html")
	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		var (
			username = r.FormValue("username")
		)

		if username == "" {
			templates.NotFoundPage(w, r)
			return
		}

		// Debug: use ?delay=true to force a slower response.
		if r.FormValue("delay") != "" {
			time.Sleep(1 * time.Second)
		}

		// Find this user.
		user, err := models.FindUser(username)
		if err != nil {
			templates.NotFoundPage(w, r)
			return
		}

		// Get the current user.
		currentUser, err := session.CurrentUser(r)
		if err != nil {
			session.FlashError(w, r, "You must be signed in to view this page.")
			templates.Redirect(w, "/login?next=/u/"+url.QueryEscape(r.URL.String()))
			return
		}

		// Is the site under a Maintenance Mode restriction?
		if middleware.MaintenanceMode(currentUser, w, r) {
			return
		}

		// Inject relationship booleans for profile picture display.
		models.SetUserRelationships(currentUser, []*models.User{user})

		// Give a Not Found page if we can not see this user.
		if err := user.CanBeSeenBy(currentUser); err != nil {
			log.Error("%s can not be seen by viewer %s: %s", user.Username, currentUser.Username, err)
			templates.NotFoundPage(w, r)
			return
		}

		vars := map[string]interface{}{
			"User":                  user,
			"PhotoCount":            models.CountPhotosICanSee(user, currentUser),
			"FriendCount":           models.CountFriends(user.ID),
			"ForumThreadCount":      models.CountThreadsByUser(user),
			"ForumReplyCount":       models.CountCommentsByUser(user, "threads"),
			"PhotoCommentCount":     models.CountCommentsByUser(user, "photos"),
			"CommentsReceivedCount": models.CountCommentsReceived(user),
			"LikesGivenCount":       models.CountLikesGiven(user),
			"LikesReceivedCount":    models.CountLikesReceived(user),
		}

		if err := tmpl.Execute(w, r, vars); err != nil {
			http.Error(w, err.Error(), http.StatusInternalServerError)
			return
		}
	})
}