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

pub const CHANNEL_METADATA: crate::providers::ProviderChannelMetadata =
    crate::providers::ProviderChannelMetadata {
        group_id: "live-cams",
        tags: &["live", "cams", "amateur"],
    };

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

#[derive(Debug, Clone)]
pub struct ChaturbateProvider {
    url: String,
}
impl ChaturbateProvider {
    pub fn new() -> Self {
        let provider = ChaturbateProvider {
            url: "https://chaturbate.com".to_string(),
        };
        provider
    }

    fn build_channel(&self, clientversion: ClientVersion) -> Channel {
        let _ = clientversion;

        Channel {
            id: "chaturbate".to_string(),
            name: "WORK IN PROGRESS Chaturbate".to_string(),
            description: "Free Adult Webcams".to_string(),
            premium: false,
            favicon: "https://www.google.com/s2/favicons?sz=64&domain=chaturbate.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: "latest-updates".into(),
                        title: "Latest".into(),
                    },
                    FilterOption {
                        id: "most-popular".into(),
                        title: "Most Viewed".into(),
                    },
                    FilterOption {
                        id: "top-rated".into(),
                        title: "Top Rated".into(),
                    },
                ],
                multiSelect: false,
            }],
            nsfw: true,
            cacheDuration: None,
        }
    }

    async fn get(
        &self,
        cache: VideoCache,
        page: u8,
        options: ServerOptions,
    ) -> Result<Vec<VideoItem>> {
        let video_url = format!(
            "{}/api/ts/roomlist/room-list/?limit=90&offset={}",
            self.url,
            90 * (page - 1)
        );
        let old_items = match cache.get(&video_url) {
            Some((time, items)) => {
                if time.elapsed().unwrap_or_default().as_secs() < 60 * 1 {
                    return Ok(items.clone());
                } else {
                    items.clone()
                }
            }
            None => {
                vec![]
            }
        };

        let mut requester =
            crate::providers::requester_or_default(&options, module_path!(), "missing_requester");
        let response = match requester
            .get_raw_with_headers(
                &video_url,
                vec![("X-Requested-With".to_string(), "XMLHttpRequest".to_string())],
            )
            .await
        {
            Ok(response) => response,
            Err(e) => {
                report_provider_error(
                    "chaturbate",
                    "get.request",
                    &format!("url={video_url}; error={e}"),
                )
                .await;
                return Ok(old_items);
            }
        };
        let text = match response.text().await {
            Ok(text) => text,
            Err(e) => {
                report_provider_error(
                    "chaturbate",
                    "get.response_text",
                    &format!("url={video_url}; error={e}"),
                )
                .await;
                return Ok(old_items);
            }
        };
        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 video_url = format!(
            "{}/api/ts/roomlist/room-list/?keywords={}&limit=90&offset={}",
            query,
            self.url,
            90 * (page - 1)
        );
        video_url = video_url.replace(" ", "+");
        // 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 * 1 {
                    return Ok(items.clone());
                } else {
                    let _ = cache.check().await;
                    return Ok(items.clone());
                }
            }
            None => {
                vec![]
            }
        };

        let mut requester =
            crate::providers::requester_or_default(&options, module_path!(), "missing_requester");
        let response = match requester
            .get_raw_with_headers(
                &video_url,
                vec![("X-Requested-With".to_string(), "XMLHttpRequest".to_string())],
            )
            .await
        {
            Ok(response) => response,
            Err(e) => {
                report_provider_error(
                    "chaturbate",
                    "query.request",
                    &format!("url={video_url}; error={e}"),
                )
                .await;
                return Ok(old_items);
            }
        };
        let text = match response.text().await {
            Ok(text) => text,
            Err(e) => {
                report_provider_error(
                    "chaturbate",
                    "query.response_text",
                    &format!("url={video_url}; error={e}"),
                )
                .await;
                return Ok(old_items);
            }
        };
        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::new();
        let json = serde_json::from_str::<serde_json::Value>(html.as_str()).unwrap_or_else(|e| {
            println!("Failed to parse JSON: {}", e);
            serde_json::Value::Null
        });
        let rooms = match json.get("rooms").and_then(|v| v.as_array()) {
            Some(rooms) => rooms,
            None => {
                crate::providers::report_provider_error_background(
                    "chaturbate",
                    "get_video_items_from_html.rooms_missing",
                    "missing rooms array",
                );
                return items;
            }
        };
        for video_segment in rooms {
            if video_segment
                .get("has_password")
                .unwrap_or(&serde_json::Value::Bool(false))
                .as_bool()
                .unwrap_or(false)
            {
                continue;
            }
            // let vid = video_segment.split("\n").collect::<Vec<&str>>();
            // for (index, line) in vid.iter().enumerate() {
            //     println!("Line {}: {}", index, line);
            // }
            let Some(username) = video_segment
                .get("username")
                .and_then(|v| v.as_str())
                .map(String::from)
            else {
                crate::providers::report_provider_error_background(
                    "chaturbate",
                    "get_video_items_from_html.username_missing",
                    "missing username field",
                );
                continue;
            };
            let video_url: String = format!("{}/{}/", self.url, username);
            let mut title = video_segment
                .get("room_subject")
                .and_then(|v| v.as_str())
                .map(String::from)
                .unwrap_or("".to_string());
            // html decode
            title = decode(title.as_bytes()).to_string().unwrap_or(title);
            let id = username.clone();

            let thumb = video_segment
                .get("img")
                .unwrap_or(&serde_json::Value::String("".to_string()))
                .as_str()
                .unwrap_or("")
                .split("?")
                .collect::<Vec<&str>>()
                .get(0)
                .copied()
                .unwrap_or_default()
                .to_string();
            let views = video_segment
                .get("viewers")
                .unwrap_or(&serde_json::Value::Number(serde_json::Number::from(0)))
                .as_u64()
                .unwrap_or(0);

            let tags = video_segment
                .get("tags")
                .unwrap_or(&serde_json::Value::Array(vec![]))
                .as_array()
                .unwrap_or(&vec![])
                .iter()
                .filter_map(|t| t.as_str())
                .map(|s| s.to_string())
                .collect::<Vec<String>>();

            let video_item = VideoItem::new(
                id,
                title,
                video_url.to_string(),
                "chaturbate".to_string(),
                thumb,
                0,
            )
            .is_live(true)
            .views(views as u32)
            .uploader(username.clone())
            .uploader_url(video_url.clone())
            .tags(tags);
            items.push(video_item);
        }
        return items;
    }
}

#[async_trait]
impl Provider for ChaturbateProvider {
    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), options)
                    .await
            }
        };
        match videos {
            Ok(v) => v,
            Err(e) => {
                println!("Error fetching videos: {}", e);
                vec![]
            }
        }
    }
    fn get_channel(&self, clientversion: ClientVersion) -> Option<crate::status::Channel> {
        Some(self.build_channel(clientversion))
    }
}