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

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

#[derive(Debug, Clone)]
pub struct OmgxxxProvider {
    url: String,
    sites: Vec<FilterOption>,
    networks: Vec<FilterOption>,
}
impl OmgxxxProvider {
    pub fn new() -> Self {
        OmgxxxProvider {
            url: "https://www.omg.xxx".to_string(),
            sites: vec![],
            networks: vec![],
        }
    }

    fn build_channel(&self, clientversion: ClientVersion) -> Channel {
        let _ = clientversion;
        
        let channel: crate::status::Channel = Channel{
            id: "omgxxx".to_string(),
            name: "OMG XXX".to_string(),
            description: "Free Porn Site".to_string(),
            premium: false,
            favicon: "https://www.google.com/s2/favicons?sz=64&domain=www.omg.xxx".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(), //"Sort the videos by Date or Name.".to_string(),
                    systemImage: "list.number".to_string(),
                    colorName: "blue".to_string(),
                    options: vec![
                        FilterOption {
                            id: "latest-updates".to_string(),
                            title: "Latest".to_string(),
                        },
                        FilterOption {
                            id: "most-popular".to_string(),
                            title: "Most Viewed".to_string(),
                        },
                        FilterOption {
                            id: "top-rated".to_string(),
                            title: "Top Rated".to_string(),
                        },
                    ],
                    multiSelect: false,
                },
                ChannelOption {
                    id: "sites".to_string(),
                    title: "Sites".to_string(),
                    description: "Sort the Videos".to_string(), //"Sort the videos by Date or Name.".to_string(),
                    systemImage: "list.bullet.indent".to_string(),
                    colorName: "green".to_string(),
                    options: self.sites.clone(),
                    multiSelect: false,
                },
                ChannelOption {
                    id: "networks".to_string(),
                    title: "Networks".to_string(),
                    description: "Sort the Videos".to_string(), //"Sort the videos by Date or Name.".to_string(),
                    systemImage: "list.dash".to_string(),
                    colorName: "purple".to_string(),
                    options: self.networks.clone(),
                    multiSelect: false,
                }
                
            ],
            nsfw: true,
            cacheDuration: None,
        };

        return channel;
    }

    async fn get(
        &self,
        cache: VideoCache,
        page: u8,
        sort: &str,
        options: ServerOptions,
    ) -> Result<Vec<VideoItem>> {
        let sort_string = match sort {
            "top-rated" => "top-rated",
            "most-popular" => "most-popular",
            _ => "latest-updates",
        };
        let video_url = format!("{}/{}/{}/", self.url, sort_string, page);
        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 mut search_type = "search";
        if query.starts_with("@models:") {
            search_type = "models";
        }
        let video_url = format!("{}/{}/{}/{}/", self.url, search_type, query.to_lowercase().trim().replace(" ","-").replace("@models:",""), 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("videos_list_pagination").collect::<Vec<&str>>()[0]
            .split(" class=\"pagination\" ").collect::<Vec<&str>>()[0]
            .split("class=\"list-videos\"").collect::<Vec<&str>>()[1]
            .split("class=\"item\"").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("<a href=\"").collect::<Vec<&str>>()[1]
                    .split("\"")
                    .collect::<Vec<&str>>()[0].to_string();
            let mut title = video_segment.split(" title=\"").collect::<Vec<&str>>()[1]
                .split("\"").collect::<Vec<&str>>()[0]
                .to_string();
            // html decode
            title = decode(title.as_bytes()).to_string().unwrap_or(title);
            let id = video_url.split("/").collect::<Vec<&str>>()[4].to_string();

            let thumb = match video_segment.split("img loading").collect::<Vec<&str>>()[1].contains("data-src=\"") {
                true => video_segment.split("img loading").collect::<Vec<&str>>()[1].split("data-src=\"").collect::<Vec<&str>>()[1]
                .split("\"").collect::<Vec<&str>>()[0]
                .to_string(),
                false => video_segment.split("img loading").collect::<Vec<&str>>()[1].split("data-original=\"").collect::<Vec<&str>>()[1]
                .split("\"").collect::<Vec<&str>>()[0]
                .to_string(),
            };
            let raw_duration = video_segment.split("<span class=\"duration\">").collect::<Vec<&str>>()[1]
                .split("<").collect::<Vec<&str>>()[0]
                .split(" ").collect::<Vec<&str>>().last().unwrap_or(&"")
                .to_string();
            let duration = parse_time_to_seconds(raw_duration.as_str()).unwrap_or(0) as u32;
            let views = parse_abbreviated_number(video_segment.split("<div class=\"views\">").collect::<Vec<&str>>()[1]
                .split("<")
                .collect::<Vec<&str>>()[0]
                .to_string().as_str()).unwrap_or(0) as u32;

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

            let tags = match video_segment.contains("class=\"models\">"){
                true => video_segment.split("class=\"models\">").collect::<Vec<&str>>()[1]
                .split("</div>").collect::<Vec<&str>>()[0]
                .split("href=\"").collect::<Vec<&str>>()[1..]
                .into_iter().map(
                    |s| format!("@models:{}", s.split("/").collect::<Vec<&str>>()[4]
                        .to_string())
                ).collect::<Vec<String>>().to_vec(),
                false => vec![]
            }
            ;

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


}

#[async_trait]
impl Provider for OmgxxxProvider {
    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 {
        println!("Getting channel for omgxxx with client version: {:?}", clientversion);
        self.build_channel(clientversion)
    }
}