use dioxus::prelude::*;

use tavern::{Adventurer, Legend, Lore, Tale};

use crate::server::*;



const AUTHOR_CSS: Asset = asset!("/assets/css/blog_author.css");
const LIST_CSS: Asset = asset!("/assets/css/blog_list.css");
const NAV_CSS: Asset = asset!("/assets/css/blog_nav.css");
const POST_CSS: Asset = asset!("/assets/css/blog_post.css");
const TAG_CSS: Asset = asset!("/assets/css/blog_tag.css");


#[derive(Clone, Copy, PartialEq)]
pub enum TagStyle
{
   Regular,
   Easy,
   Medium,
   Hard
}

#[derive(Clone, Copy, PartialEq)]
pub enum Tag
{
   LeetCode,
   Embedded,
   Simulation,
   Web
}



#[component]
pub fn TagItem(tag: Tag, style: TagStyle) -> Element
{
   let text = match tag
   {
      Tag::LeetCode => { "LeetCode" }
      Tag::Embedded => { "Embedded" }
      Tag::Simulation => { "Simulation" }
      Tag::Web => { "Web" }
   };

   let tag_style = match style
   {
      TagStyle::Regular => { "none" }
      TagStyle::Easy => { "easy" }
      TagStyle::Medium => { "medium" }
      TagStyle::Hard => { "hard" }
   };

   rsx!
   {
      li
      {
         class: "tag_item",
         a { class: "{tag_style}", "{text}" }
      }
   }
}

#[component]
pub fn TagList(children: Element) -> Element
{
   rsx!
   {
      document::Link { rel: "stylesheet", href: TAG_CSS }

      h5
      {
         class: "blog_tag_style",
         ul
         {
            class: "tag_list",
            {children}
         }
      }
   }
}


/*
#[component]
pub fn BlogAuthor() -> Element
{
   rsx!
   {
      document::Link { rel: "stylesheet", href: AUTHOR_CSS }

      section
      {
         class: "blog_author_style",

      }
   }
}


#[component]
pub fn BlogItem(title: String, slug: String, author: String,
                summary: String, tags: Vec<(Tag, TagStyle)>) -> Element
{
   rsx!
   {
      li
      {
         class: "blog_item",
         Link
         {
            to: Page::Post { slug: slug },
            h1 { "{title}" }
         }
         TagList
         {
            for (tag, style) in tags
            {
               TagItem
               {
                  tag: tag,
                  style: style
               }
            }
         }
         h4 { "Author: {author}" }
         p { "{summary}" }
      }
   }
}


#[component]
pub fn BlogList(children: Element) -> Element
{
   rsx!
   {
      document::Link { rel: "stylesheet", href: LIST_CSS }

      section
      {
         class: "blog_list_style",
         ul
         {
            class: "blog_list",
            {children}
         }
      }
   }
}


#[component]
pub fn BlogNav() -> Element
{
   rsx!
   {
      document::Link { rel: "stylesheet", href: NAV_CSS }

      section
      {
         class: "blog_nav_style",
         div
         {
            class: "tag_style",
            h3 { "Categories" }
            ul
            {
               class: "tag_list",
               li
               {
                  class: "tag_item",
                  a { href: "/blog.html", "LeetCode" }
               }
               li
               {
                  class: "tag_item",
                  a { href: "/blog.html", "Embedded" }
               }
               li
               {
                  class: "tag_item",
                  a { href: "/blog.html", "Simulation" }
               }
               li
               {
                  class: "tag_item",
                  a { href: "/blog.html", "Web" }
               }
            }
         }
         SocialButtonList
         {
            SocialButton
            {
               link: String::from("https://www.linkedin.com/company/cybermages-llc"),
               company: Company::LinkedIn,
               size: Size::Small
            }
            SocialButton
            {
               link: String::from("https://bsky.app/profile/cybermages.tech"),
               company: Company::Bluesky,
               size: Size::Small
            }
         }
      }
   }
}
*/


#[component]
pub fn PostHeaderAuthor(name: String, handle: String, profile_link: String) -> Element
{
   rsx!
   {
      h4 { "Author: ", a { href: "{profile_link}", "{name} @{handle}" } }
   }
}

#[component]
pub fn PostHeader(title: String, author: String, tags: Vec<String>) -> Element
{
   let Ok(author) = use_server_future(move || get_author(author.clone())) else
   {
      return rsx! { p { "Failed to load author." } }
   };

   rsx!
   {
      h1 { "{title}" }
      TagList
      {
         for category in tags
         {
            TagItem
            {
               tag: Tag::LeetCode,
               style: TagStyle::Regular
            }
         }
      }

      match &*author.read()
      {
         Some(Ok(author)) =>
         {
            rsx!
            {
               PostHeaderAuthor
               {
                  name: author.name.clone(),
                  handle: author.handle.clone(),
                  profile_link: author.legend.profile.clone()
               }
            }
         }

         Some(Err(e)) =>
         {
            rsx!
            {
               p { "Unable to show post header." }
               p { "{e}" }
            }
         }

         None =>
         {
            rsx!
            {
               p { "Loading..." }
            }
         }
      }
   }
}

#[component]
pub fn BlogPost(slug: String, children: Element) -> Element
{
   let test_slug = slug.clone();
   // 1. Fetch the blog post using the slug.
   let post = use_server_future(move ||
   {
      let url_slug = slug.clone();
      async move
      {
         get_blog_post(url_slug).await
      }
   })?;

   // Then build the component.
   rsx!
   {
      document::Link { rel: "stylesheet", href: POST_CSS }

      article
      {
         class: "blog_post_style",

         match &*post.read()
         {
            Some(Ok(post)) =>
            {
               rsx!
               {
                  PostHeader
                  {
                     title: post.lore.title.clone(),
                     author: post.lore.author.clone(),
                     tags: post.lore.tags.clone()
                  }

                  div { dangerous_inner_html: "{post.story}" }
               }
            }

            Some(Err(e)) =>
            {
               rsx!
               {
                  p { "Unable to show desired post." }
                  p { "Trying to get:  {test_slug}" }
                  p { "{e}" }
               }
            }

            None =>
            {
               rsx!
               {
                  p { "Loading..." }
               }
            }
         }

         {children}
      }
   }
}