use std::vec;

use radiobrowser::RadioBrowserAPI;
use reqwest::Client;

use songbird::input::Input;
use songbird::input::HttpRequest;

use super::super::connect;
use crate::utils::poise_context_extension::ContextExt;
use crate::types::{Context, Error};
use crate::commands::voice::voice_utils::autocomplete_channel;

use super::radio_utils::paginate_search;

use super::super::voice_utils::MAX_ENTRIES;

#[poise::command(
    slash_command,
    description_localized("en-US", "Plays music from URL source"),
    subcommands("search", "play")
)]
pub async fn radio(_ctx: Context<'_>) -> Result<(), Error> {
    Ok(())
}

// TODO: autocomplete radio stream URLs
#[poise::command(
    slash_command,
    description_localized("en-US", "Plays music from URL source")
)]
pub async fn play(ctx: Context<'_>,
    #[autocomplete = "autocomplete_channel"]
    #[description = "Voice channel name: "]
    channel: Option<String>,
    #[autocomplete = "autocomplete_radio"]
    #[description = "Radio station: "]
    name: String,
) -> Result<(), Error> {

    if ctx.guild().is_none() {
        ctx.reply_ephemeral("Can't use this outside of guild").await?;
        return Ok(());
    }

    let manager = songbird::get(ctx.serenity_context())
        .await
        .expect("Songbird Voice client placed in at initialisation.")
        .clone();

    let Some(guild_id) = ctx.guild_id() else {
        ctx.reply_ephemeral("Guild id not found").await?;
        return Ok(())
    };

    if manager.get(guild_id).is_none() {
        if let Err(e) =  connect(&ctx, guild_id, channel).await {
            ctx.reply_ephemeral(&e.to_string()).await?;
            return Ok(())
        }
    }

    if let Some(handler_lock) = manager.get(guild_id) {
        let mut handler = handler_lock.lock().await;

        let client = Client::new();
        let request = HttpRequest::new(client, name);
        let input = Input::from(request);
        handler.play_only_input(input);
    }
    else {
        ctx.reply_ephemeral("Not in a voice channel").await?;
        return Ok(())
    }

    ctx.reply_ephemeral("Done!").await?;
    Ok(())
}

async fn autocomplete_radio(
    ctx: Context<'_>,
    partial: &str
) -> Vec<String> {
    
    let api = {
        match &ctx.data().radio_browser {
            Some(v) => v.clone(),
            None => {
                let Ok(radio_browser) = RadioBrowserAPI::new().await else {
                    return vec!["There was an error with radio API!".to_owned()]
                };
                radio_browser
            }
        }
    };

    let stations: Vec<String> = match api.get_stations()
        .limit(MAX_ENTRIES)
        .name(partial)
        .hidebroken(true)
        .send().await {
            Ok(stations) => {
                stations.iter().map(|station| 
                    format!("Name: {} Language: {} Bitrate: {}", station.name, station.countrycode, station.bitrate)
                ).collect()
            },
            Err(_) => return vec!["".to_owned()]
    };

    dbg!(&stations);

    return stations
    // return vec![];
} 

// TODO
// autocomplete
// search with buttons and list in embed with direct links to stream
// embed showing currently playing song

// TODO: autocomplete radio stream URLs
#[poise::command(
    slash_command,
    description_localized("en-US", "Search for a radio")
)]
pub async fn search(ctx: Context<'_>,
    #[description = "Radio station: "]
    name: String,
    #[description = "Country: "]
    country: Option<String>,
    #[description = "Tag: "]
    tag: Option<String>
) -> Result<(), Error> {

    let api = match &ctx.data().radio_browser {
            Some(v) => v.clone(),
            None => {
                let Ok(radio_browser) = RadioBrowserAPI::new().await else {
                    let _ = ctx.reply_ephemeral("There was an error with radio API!").await;
                    return Ok(())
                };
                radio_browser
            }
    };

    let station_search_builder = api.get_stations()
        .name(name)
        .tag(tag.unwrap_or("".to_owned()))
        .country(country.unwrap_or("".to_owned()))
        .hidebroken(true);

    paginate_search(ctx, station_search_builder);

    Ok(())
}