use crate::schema::videos::url;
use crate::util::parse_abbreviated_number;
use crate::DbPool;
use crate::providers::Provider;
use crate::util::cache::VideoCache;
use crate::util::flaresolverr::{FlareSolverrRequest, Flaresolverr};
use crate::util::time::parse_time_to_seconds;
use crate::videos::{VideoItem};
use error_chain::error_chain;
use futures::stream::SplitSink;
use htmlentity::entity::{ICodedDataTrait, decode};
use serde_json::Value;
use std::env;
use std::os::linux::raw;
use std::time::Duration;
use std::vec;
use wreq::{Client, Proxy};
use wreq_util::Emulation;

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

#[derive(Debug, Clone)]
pub struct RedtubeProvider {
    url: String,
}
impl RedtubeProvider {
    pub fn new() -> Self {
        RedtubeProvider {
            url: "https://www.redtube.com".to_string(),
        }
    }
    async fn get(
        &self,
        cache: VideoCache,
        page: u8,
        sort: &str,
    ) -> Result<Vec<VideoItem>> {
        let video_url = format!("{}/mostviewed", self.url);
        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 proxy = Proxy::all("http://192.168.0.103:8081").unwrap();
        let client = Client::builder().cert_verification(false).emulation(Emulation::Firefox136).build()?;

        let mut response = client.get(video_url.clone())
        // .proxy(proxy.clone())
        .send().await?;
        if response.status().is_redirection(){
            
            response = client.get(self.url.clone() + response.headers()["Location"].to_str().unwrap())
            // .proxy(proxy)
            .send().await?;
        }
        if response.status().is_success() {
            let text = response.text().await?;
            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)
        } else {
            let flare_url = env::var("FLARE_URL").expect("FLARE_URL not set");
            let flare = Flaresolverr::new(flare_url);
            let result = flare
                .solve(FlareSolverrRequest {
                    cmd: "request.get".to_string(),
                    url: video_url.clone(),
                    maxTimeout: 60000,
                })
                .await;
            let video_items = match result {
                Ok(res) => {
                    // println!("FlareSolverr response: {}", res);
                    self.get_video_items_from_html(res.solution.response)
                }
                Err(e) => {
                    println!("Error solving FlareSolverr: {}", e);
                    return Err("Failed to solve FlareSolverr".into());
                }
            };
            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,
        sort: &str,
    ) -> Result<Vec<VideoItem>> {
        let search_string = query.to_lowercase().trim().replace(" ", "+");
        let video_url = format!("{}/?search={}&page={}", self.url, search_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 proxy = Proxy::all("http://192.168.0.103:8081").unwrap();
        let client = Client::builder().cert_verification(false).emulation(Emulation::Firefox136).build()?;

        let mut response = client.get(video_url.clone())
        .proxy(proxy.clone())
        .send().await?;

        if response.status().is_redirection(){
            
            response = client.get(self.url.clone() + response.headers()["Location"].to_str().unwrap())
            .proxy(proxy)
            .send().await?;
        }

        if response.status().is_success() {
            let text = response.text().await?;
            let video_items: Vec<VideoItem> = self.get_video_items_from_html_query(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)
        } else {
            let flare_url = env::var("FLARE_URL").expect("FLARE_URL not set");
            let flare = Flaresolverr::new(flare_url);
            let result = flare
                .solve(FlareSolverrRequest {
                    cmd: "request.get".to_string(),
                    url: video_url.clone(),
                    maxTimeout: 60000,
                })
                .await;
            let video_items = match result {
                Ok(res) => self.get_video_items_from_html_query(res.solution.response),
                Err(e) => {
                    println!("Error solving FlareSolverr: {}", e);
                    return Err("Failed to solve FlareSolverr".into());
                }
            };
            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 video_listing_content = html.split("<script type=\"application/ld+json\">").collect::<Vec<&str>>()[1].split("</script>").collect::<Vec<&str>>()[0];
        let mut videos: Value = serde_json::from_str(video_listing_content).unwrap();
        for vid in videos.as_array_mut().unwrap() {
            let mut video_url: String = vid["embedUrl"].as_str().unwrap_or("").to_string();
            let mut title: String = vid["name"].as_str().unwrap_or("").to_string();
            // html decode
            title = decode(title.as_bytes()).to_string().unwrap_or(title);
            let id = video_url.split("=").collect::<Vec<&str>>()[1].to_string();
            let raw_duration = vid["duration"].as_str().unwrap_or("0");
            let duration = raw_duration.replace("PT", "").replace("S","").parse::<u32>().unwrap();
            let views: u64 = vid["interactionCount"].as_u64().unwrap_or(0);
            let thumb = vid["thumbnailUrl"].as_str().unwrap_or("").to_string();

            let mut video_item = VideoItem::new(
                id,
                title,
                video_url.to_string(),
                "redtube".to_string(),
                thumb,
                duration,
            )
            .views(views as u32)
            ;
            items.push(video_item);
        }
        return items;
    }

    fn get_video_items_from_html_query(&self, html: String) -> Vec<VideoItem> {
        if html.is_empty() {
            println!("HTML is empty");
            return vec![];
        }
        let mut items: Vec<VideoItem> = Vec::new();
        let video_listing_content = html.split("videos_grid").collect::<Vec<&str>>()[1];
        let videos = video_listing_content.split("<li id=\"tags_videos_").collect::<Vec<&str>>()[1..].to_vec();
        for vid in videos {
            for (i, c) in vid.split("\n").enumerate() {
                println!("{}: {}", i, c);
            }
            let id = vid.split("data-video-id=\"").collect::<Vec<&str>>()[1].split("\"").collect::<Vec<&str>>()[0].to_string();
            let video_url = format!("{}/{}", self.url, id);
            let title = vid.split(format!("href=\"/{}\"",id).as_str()).collect::<Vec<&str>>()[1].split(">").collect::<Vec<&str>>()[1].split("<").collect::<Vec<&str>>()[0].trim().to_string();
            let thumb = vid.split("<img").collect::<Vec<&str>>()[1].split(" src=\"").collect::<Vec<&str>>()[1].split("\"").collect::<Vec<&str>>()[0].to_string();
            let raw_duration = vid.split("<span class=\"video-properties tm_video_duration\">").collect::<Vec<&str>>()[1].split("</span>").collect::<Vec<&str>>()[0].trim().to_string();
            let duration = parse_time_to_seconds(&raw_duration).unwrap_or(0) as u32;
            let views_str = vid.split("<span class='info-views'>").collect::<Vec<&str>>()[1].split("</span>").collect::<Vec<&str>>()[0].trim().to_string();
            let views = parse_abbreviated_number(&views_str).unwrap_or(0) as u32;

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

}

impl Provider for RedtubeProvider {
    async fn get_videos(
        &self,
        cache: VideoCache,
        pool: DbPool,
        _channel: String,
        sort: String,
        query: Option<String>,
        page: String,
        per_page: String,
        featured: String,
        category: String,
    ) -> Vec<VideoItem> {
        let _ = category;
        let _ = per_page;
        let _ = featured; // Ignored in this implementation
        let _ = pool; // Ignored in this implementation
        let mut sort = sort.to_lowercase();
        if sort.contains("date"){
            sort = "mr".to_string();
        }
        let videos: std::result::Result<Vec<VideoItem>, Error> = match query {
            Some(q) => {
                self.query(cache, page.parse::<u8>().unwrap_or(1), &q, &sort)
                    .await
            }
            None => {
                self.get(cache, page.parse::<u8>().unwrap_or(1), &sort)
                    .await
            }
        };
        match videos {
            Ok(v) => v,
            Err(e) => {
                println!("Error fetching videos: {}", e);
                vec![]
            }
        }
    }
}