use crate::DbPool;
use crate::api::ClientVersion;
use crate::providers::Provider;
use crate::status::*;
use crate::util::cache::VideoCache;
use crate::util::parse_abbreviated_number;
use crate::util::time::parse_time_to_seconds;
use crate::videos::{ServerOptions, VideoItem};
use async_trait::async_trait;
use error_chain::error_chain;
use htmlentity::entity::{ICodedDataTrait, decode};
// use std::sync::{Arc, RwLock};
// use std::thread;
use std::vec;

error_chain! {
    foreign_links {
        Io(std::io::Error);
        HttpRequest(wreq::Error);
    }
}

#[derive(Debug, Clone)]
pub struct TnaflixProvider {
    url: String,
    // sites: Arc<RwLock<Vec<FilterOption>>>,
    // categories: Arc<RwLock<Vec<FilterOption>>>,
    // stars: Arc<RwLock<Vec<FilterOption>>>,
}
impl TnaflixProvider {
    pub fn new() -> Self {
        let provider = TnaflixProvider {
            url: "https://www.tnaflix.com".to_string(),
            // sites: Arc::new(RwLock::new(vec![FilterOption {
            //     id: "all".to_string(),
            //     title: "All".to_string(),
            // }])),
            // categories: Arc::new(RwLock::new(vec![FilterOption {
            //     id: "all".to_string(),
            //     title: "All".to_string(),
            // }])),
            // stars: Arc::new(RwLock::new(vec![FilterOption {
            //     id: "all".to_string(),
            //     title: "All".to_string(),
            // }])),
        };

        // Kick off the background load but return immediately
        // provider.spawn_initial_load();
        provider
    }

    // fn spawn_initial_load(&self) {
    //     let url = self.url.clone();
    //     let sites = Arc::clone(&self.sites);
    //     let categories = Arc::clone(&self.categories);
    //     let stars = Arc::clone(&self.stars);

    //     thread::spawn(move || {
    //         // Create a tiny runtime just for these async tasks
    //         let rt = tokio::runtime::Builder::new_current_thread()
    //             .enable_all()
    //             .build()
    //             .expect("build tokio runtime");

    //         rt.block_on(async move {
    //             // If you have a streaming sites loader, call it here too
    //             if let Err(e) = Self::load_sites(&url, sites).await {
    //                 eprintln!("load_sites_into failed: {e}");
    //             }

    //             if let Err(e) = Self::load_categories(&url, categories).await {
    //                 eprintln!("load_categories failed: {e}");
    //             }

    //             if let Err(e) = Self::load_stars(&url, stars).await {
    //                 eprintln!("load_stars failed: {e}");
    //             }
    //         });
    //     });
    // }

    // async fn load_stars(base_url: &str, stars: Arc<RwLock<Vec<FilterOption>>>) -> Result<()> {
    //     let mut requester = util::requester::Requester::new();
    //     for page in [1..10].into_iter().flatten() {
    //         let text = requester
    //             .get(format!("{}/pornstars?page={}", &base_url, page).as_str())
    //             .await
    //             .unwrap();
    //         if text.contains("404 Not Found") || text.is_empty() {
    //             break;
    //         }
    //         let stars_div = text
    //             .split("<span>Hall of Fame Pornstars</span>")
    //             .collect::<Vec<&str>>()[1]
    //             .split("pagination")
    //             .collect::<Vec<&str>>()[0];
    //         for stars_element in stars_div.split("<a ").collect::<Vec<&str>>()[1..].to_vec() {
    //             let star_url = stars_element.split("href=\"").collect::<Vec<&str>>()[1]
    //                 .split("\"")
    //                 .collect::<Vec<&str>>()[0];
    //             let star_id = star_url.split("/").collect::<Vec<&str>>()[4].to_string();
    //             let star_name = stars_element.split("title=\"").collect::<Vec<&str>>()[1]
    //                 .split("\"")
    //                 .collect::<Vec<&str>>()[0]
    //                 .to_string();
    //             Self::push_unique(
    //                 &stars,
    //                 FilterOption {
    //                     id: star_id,
    //                     title: star_name,
    //                 },
    //             );
    //         }
    //     }
    //     return Ok(());
    // }

    // async fn load_sites(base_url: &str, sites: Arc<RwLock<Vec<FilterOption>>>) -> Result<()> {
    //     let mut requester = util::requester::Requester::new();
    //     let mut page = 0;
    //     loop {
    //         page += 1;
    //         let text = requester
    //             .get(format!("{}/sites/{}/", &base_url, page).as_str())
    //             .await
    //             .unwrap();
    //         if text.contains("404 Not Found") || text.is_empty() {
    //             break;
    //         }
    //         let sites_div = text
    //             .split("id=\"list_content_sources_sponsors_list_items\"")
    //             .collect::<Vec<&str>>()[1]
    //             .split("class=\"pagination\"")
    //             .collect::<Vec<&str>>()[0];
    //         for sites_element in
    //             sites_div.split("class=\"headline\"").collect::<Vec<&str>>()[1..].to_vec()
    //         {
    //             let site_url = sites_element.split("href=\"").collect::<Vec<&str>>()[1]
    //                 .split("\"")
    //                 .collect::<Vec<&str>>()[0];
    //             let site_id = site_url.split("/").collect::<Vec<&str>>()[4].to_string();
    //             let site_name = sites_element.split("<h2>").collect::<Vec<&str>>()[1]
    //                 .split("<")
    //                 .collect::<Vec<&str>>()[0]
    //                 .to_string();
    //             Self::push_unique(
    //                 &sites,
    //                 FilterOption {
    //                     id: site_id,
    //                     title: site_name,
    //                 },
    //             );
    //         }
    //     }
    //     return Ok(());
    // }

    // async fn load_networks(base_url: &str, networks: Arc<RwLock<Vec<FilterOption>>>) -> Result<()> {
    //     let mut requester = util::requester::Requester::new();
    //     let text = requester.get(&base_url).await.unwrap();
    //     let networks_div = text.split("class=\"sites__list\"").collect::<Vec<&str>>()[1]
    //         .split("</div>")
    //         .collect::<Vec<&str>>()[0];
    //     for network_element in
    //         networks_div.split("sites__item").collect::<Vec<&str>>()[1..].to_vec()
    //     {
    //         if network_element.contains("sites__all") {
    //             continue;
    //         }
    //         let network_url = network_element.split("href=\"").collect::<Vec<&str>>()[1]
    //             .split("\"")
    //             .collect::<Vec<&str>>()[0];
    //         let network_id = network_url.split("/").collect::<Vec<&str>>()[4].to_string();
    //         let network_name = network_element.split(">").collect::<Vec<&str>>()[1]
    //             .split("<")
    //             .collect::<Vec<&str>>()[0]
    //             .to_string();
    //         Self::push_unique(
    //             &networks,
    //             FilterOption {
    //                 id: network_id,
    //                 title: network_name,
    //             },
    //         );
    //     }
    //     return Ok(());
    // }

    // Push one item with minimal lock time and dedup by id
    // fn push_unique(target: &Arc<RwLock<Vec<FilterOption>>>, item: FilterOption) {
    //     if let Ok(mut vec) = target.write() {
    //         if !vec.iter().any(|x| x.id == item.id) {
    //             vec.push(item);
    //             // Optional: keep it sorted for nicer UX
    //             // vec.sort_by(|a,b| a.title.cmp(&b.title));
    //         }
    //     }
    // }

    fn build_channel(&self, clientversion: ClientVersion) -> Channel {
        let _ = clientversion;
        // let sites: Vec<FilterOption> = self
        //     .sites
        //     .read()
        //     .map(|g| g.clone()) // or: .map(|g| g.to_vec())
        //     .unwrap_or_default(); // or: .unwrap_or_else(|_| Vec::new())

        // let networks: Vec<FilterOption> = self
        //     .networks
        //     .read()
        //     .map(|g| g.clone()) // or: .map(|g| g.to_vec())
        //     .unwrap_or_default(); // or: .unwrap_or_else(|_| Vec::new())

        // let stars: Vec<FilterOption> = self
        //     .stars
        //     .read()
        //     .map(|g| g.clone()) // or: .map(|g| g.to_vec())
        //     .unwrap_or_default(); // or: .unwrap_or_else(|_| Vec::new())

        Channel {
            id: "tnaflix".to_string(),
            name: "TnAflix".to_string(),
            description: "Just Tits and Ass".to_string(),
            premium: false,
            favicon: "https://www.google.com/s2/favicons?sz=64&domain=www.tnaflix.com".to_string(),
            status: "active".to_string(),
            categories: vec![],
            options: vec![
                ChannelOption {
                    id: "sort".to_string(),
                    title: "Sort".to_string(),
                    description: "Sort the Videos".to_string(),
                    systemImage: "list.number".to_string(),
                    colorName: "blue".to_string(),
                    options: vec![
                        FilterOption {
                            id: "new".into(),
                            title: "New".into(),
                        },
                        FilterOption {
                            id: "featured".into(),
                            title: "Featured".into(),
                        },
                        FilterOption {
                            id: "toprated".into(),
                            title: "Top Rated".into(),
                        },
                    ],
                    multiSelect: false,
                },
                ChannelOption {
                    id: "duration".to_string(),
                    title: "Duration".to_string(),
                    description: "Length of the Videos".to_string(),
                    systemImage: "timer".to_string(),
                    colorName: "green".to_string(),
                    options: vec![
                        FilterOption {
                            id: "all".into(),
                            title: "All".into(),
                        },
                        FilterOption {
                            id: "short".into(),
                            title: "Short (1-3 min)".into(),
                        },
                        FilterOption {
                            id: "medium".into(),
                            title: "Medium (3-10 min)".into(),
                        },
                        FilterOption {
                            id: "long".into(),
                            title: "Long (10-30 min)".into(),
                        },
                        FilterOption {
                            id: "full".into(),
                            title: "Full length (30+ min)".into(),
                        },
                    ],
                    multiSelect: false,
                },
                // ChannelOption {
                //     id: "sites".to_string(),
                //     title: "Sites".to_string(),
                //     description: "Filter for different Sites".to_string(),
                //     systemImage: "rectangle.stack".to_string(),
                //     colorName: "green".to_string(),
                //     options: sites,
                //     multiSelect: false,
                // },
                // ChannelOption {
                //     id: "networks".to_string(),
                //     title: "Networks".to_string(),
                //     description: "Filter for different Networks".to_string(),
                //     systemImage: "list.dash".to_string(),
                //     colorName: "purple".to_string(),
                //     options: networks,
                //     multiSelect: false,
                // },
                // ChannelOption {
                //     id: "stars".to_string(),
                //     title: "Stars".to_string(),
                //     description: "Filter for different Pornstars".to_string(),
                //     systemImage: "star.fill".to_string(),
                //     colorName: "yellow".to_string(),
                //     options: stars,
                //     multiSelect: false,
                // },
            ],
            nsfw: true,
            cacheDuration: None,
        }
    }

    async fn get(
        &self,
        cache: VideoCache,
        page: u8,
        sort: &str,
        options: ServerOptions,
    ) -> Result<Vec<VideoItem>> {
        let sort_string: String = match sort {
            "featured" => "featured".to_string(),
            "toprated" => "toprated".to_string(),
            _ => "new".to_string(),
        };
        let duration_string: String = match options.duration.unwrap_or("all".to_string()).as_str() {
            "short" => "short".to_string(),
            "medium" => "medium".to_string(),
            "long" => "long".to_string(),
            "full" => "full".to_string(),
            _ => "all".to_string(),
        };
        // if options.network.is_some()
        //     && !options.network.as_ref().unwrap().is_empty()
        //     && options.network.as_ref().unwrap() != "all"
        // {
        //     sort_string = format!(
        //         "networks/{}{}",
        //         options.network.as_ref().unwrap(),
        //         alt_sort_string
        //     );
        // }
        // if options.sites.is_some()
        //     && !options.sites.as_ref().unwrap().is_empty()
        //     && options.sites.as_ref().unwrap() != "all"
        // {
        //     sort_string = format!(
        //         "sites/{}{}",
        //         options.sites.as_ref().unwrap(),
        //         alt_sort_string
        //     );
        // }
        // if options.stars.is_some()
        //     && !options.stars.as_ref().unwrap().is_empty()
        //     && options.stars.as_ref().unwrap() != "all"
        // {
        //     sort_string = format!(
        //         "models/{}{}",
        //         options.stars.as_ref().unwrap(),
        //         alt_sort_string
        //     );
        // }
        let video_url = format!(
            "{}/{}/{}?d={}",
            self.url, sort_string, page, duration_string
        );
        let old_items = match cache.get(&video_url) {
            Some((time, items)) => {
                if time.elapsed().unwrap_or_default().as_secs() < 60 * 5 {
                    println!("Cache hit for URL: {}", video_url);
                    return Ok(items.clone());
                } else {
                    items.clone()
                }
            }
            None => {
                vec![]
            }
        };

        let mut requester = options.requester.clone().unwrap();
        let text = requester.get(&video_url).await.unwrap();
        let video_items: Vec<VideoItem> = self.get_video_items_from_html(text.clone());
        if !video_items.is_empty() {
            cache.remove(&video_url);
            cache.insert(video_url.clone(), video_items.clone());
        } else {
            return Ok(old_items);
        }
        Ok(video_items)
    }

    async fn query(
        &self,
        cache: VideoCache,
        page: u8,
        query: &str,
        options: ServerOptions,
    ) -> Result<Vec<VideoItem>> {
        let search_string = query.to_string().to_lowercase().trim().replace(" ", "+");
        let duration_string: String = match options.duration.unwrap_or("all".to_string()).as_str() {
            "short" => "short".to_string(),
            "medium" => "medium".to_string(),
            "long" => "long".to_string(),
            "full" => "full".to_string(),
            _ => "all".to_string(),
        };
        let video_url = format!(
            "{}/search?what={}&d={}&page={}",
            self.url, search_string, duration_string, page
        );
        // Check our Video Cache. If the result is younger than 1 hour, we return it.
        let old_items = match cache.get(&video_url) {
            Some((time, items)) => {
                if time.elapsed().unwrap_or_default().as_secs() < 60 * 5 {
                    return Ok(items.clone());
                } else {
                    let _ = cache.check().await;
                    return Ok(items.clone());
                }
            }
            None => {
                vec![]
            }
        };

        let mut requester = options.requester.clone().unwrap();

        let text = requester.get(&video_url).await.unwrap();
        let video_items: Vec<VideoItem> = self.get_video_items_from_html(text.clone());
        if !video_items.is_empty() {
            cache.remove(&video_url);
            cache.insert(video_url.clone(), video_items.clone());
        } else {
            return Ok(old_items);
        }
        Ok(video_items)
    }

    fn get_video_items_from_html(&self, html: String) -> Vec<VideoItem> {
        if html.is_empty() {
            println!("HTML is empty");
            return vec![];
        }
        let mut items: Vec<VideoItem> = Vec::new();
        let raw_videos = html.split("pagination ").collect::<Vec<&str>>()[0]
            .split("row video-list")
            .collect::<Vec<&str>>()[1]
            .split("col-xs-6 col-md-4 col-xl-3 mb-3")
            .collect::<Vec<&str>>()[1..]
            .to_vec();
        for video_segment in &raw_videos {
            // let vid = video_segment.split("\n").collect::<Vec<&str>>();
            // for (index, line) in vid.iter().enumerate() {
            //     println!("Line {}: {}", index, line);
            // }
            let video_url: String = video_segment.split(" href=\"").collect::<Vec<&str>>()[1]
                .split("\"")
                .collect::<Vec<&str>>()[0]
                .to_string();
            let mut title = video_segment
                .split("class=\"video-title text-break\">")
                .collect::<Vec<&str>>()[1]
                .split("<")
                .collect::<Vec<&str>>()[0]
                .trim()
                .to_string();
            // html decode
            title = decode(title.as_bytes()).to_string().unwrap_or(title);
            let id = video_url.split("/").collect::<Vec<&str>>()[5].to_string();

            let thumb = match video_segment.contains("data-src=\""){
                true => video_segment.split("data-src=\"").collect::<Vec<&str>>()[1]
                .split("\"")
                .collect::<Vec<&str>>()[0]
                .to_string(),
                false => video_segment.split("<img src=\"").collect::<Vec<&str>>()[1]
                .split("\"")
                .collect::<Vec<&str>>()[0]
                .to_string(),
            };
            let raw_duration = video_segment
                .split("thumb-icon video-duration\">")
                .collect::<Vec<&str>>()[1]
                .split("<")
                .collect::<Vec<&str>>()[0]
                .to_string();
            let duration = parse_time_to_seconds(raw_duration.as_str()).unwrap_or(0) as u32;
            let views = match video_segment.contains("icon-eye\"></i>") {
                true => parse_abbreviated_number(
                    video_segment
                        .split("icon-eye\"></i>")
                        .collect::<Vec<&str>>()[1]
                        .split("<")
                        .collect::<Vec<&str>>()[0]
                        .trim(),
                    )
                    .unwrap_or(0) as u32,
                false => 0,
            };

            let preview = video_segment
                .split("data-trailer=\"")
                .collect::<Vec<&str>>()[1]
                .split("\"")
                .collect::<Vec<&str>>()[0]
                .to_string();

            let video_item = VideoItem::new(
                id,
                title,
                video_url.to_string(),
                "tnaflix".to_string(),
                thumb,
                duration,
            )
            .views(views)
            .preview(preview);
            items.push(video_item);
        }
        return items;
    }
}

#[async_trait]
impl Provider for TnaflixProvider {
    async fn get_videos(
        &self,
        cache: VideoCache,
        pool: DbPool,
        sort: String,
        query: Option<String>,
        page: String,
        per_page: String,
        options: ServerOptions,
    ) -> Vec<VideoItem> {
        let _ = per_page;
        let _ = pool;
        let videos: std::result::Result<Vec<VideoItem>, Error> = match query {
            Some(q) => {
                self.query(cache, page.parse::<u8>().unwrap_or(1), &q, options)
                    .await
            }
            None => {
                self.get(cache, page.parse::<u8>().unwrap_or(1), &sort, options)
                    .await
            }
        };
        match videos {
            Ok(v) => v,
            Err(e) => {
                println!("Error fetching videos: {}", e);
                vec![]
            }
        }
    }
    fn get_channel(&self, clientversion: ClientVersion) -> crate::status::Channel {
        self.build_channel(clientversion)
    }
}