use std::collections::HashSet;

use dioxus::prelude::*;

use crate::components::{BlogList, TagSelector};
use crate::page::Page;



fn convert_categories(categories: &str) -> HashSet<String>
{
   categories
      .split('+')
      .filter(|s| !s.is_empty() && *s != "all")
      .map(str::to_string)
      .collect()
}



/// Blog page
#[component]
pub fn Blog(tag: ReadOnlySignal<String>) -> Element
{
   let mut show_all: Signal<bool> =
      use_signal(|| tag().is_empty() || tag() == "all");

   let mut categories: Signal<HashSet<String>> =
      use_signal(|| convert_categories(&tag()));

   use_effect(move ||
   {
      let new_tags = convert_categories(&tag());
      categories.set(new_tags);
   });

   println!("Blog Categories: {:?}", categories());

   rsx!
   {
      main
      {
         class: "blog_style",
         div
         {
            class: "page_content",

            BlogList
            {
               tags: categories.clone()
            }

            TagSelector
            {
               show_all: show_all.clone(),
               toggled_tags: categories.clone()
            }
         }
      }
   }
}