use tw;
use ::Queryer;

use commands::Command;

use std::str::FromStr;

static DEL_TWEET_URL: &str = "https://api.twitter.com/1.1/statuses/destroy";
static RT_TWEET_URL: &str = "https://api.twitter.com/1.1/statuses/retweet";
static CREATE_TWEET_URL: &str = "https://api.twitter.com/1.1/statuses/update.json";

pub static DEL: Command = Command {
    keyword: "del",
    params: 1,
    exec: del
};

fn del(line: String, tweeter: &mut tw::TwitterCache, queryer: &mut Queryer) {
    let inner_twid = u64::from_str(&line).unwrap();
    let twete = tweeter.tweet_by_innerid(inner_twid).unwrap();
    queryer.do_api_post(&format!("{}/{}.json", DEL_TWEET_URL, twete.id));
}

pub static TWETE: Command = Command {
    keyword: "t",
    params: 1,
    exec: twete
};

fn twete(line: String, _tweeter: &mut tw::TwitterCache, queryer: &mut Queryer) {
    let text = line.trim();
    let substituted = ::url_encode(text);
    println!("msg len: {}", text.len());
    println!("excessively long? {}", text.len() > 140);
    if text.len() > 140 {
        queryer.do_api_post(&format!("{}?status={}", CREATE_TWEET_URL, substituted));
    } else {
        queryer.do_api_post(&format!("{}?status={}&weighted_character_count=true", CREATE_TWEET_URL, substituted));
    }
//        println!("{}", &format!("{}?status={}", CREATE_TWEET_URL, substituted));
}

pub static THREAD: Command = Command {
    keyword: "thread",
    params: 2,
    exec: thread
};

fn thread(line: String, tweeter: &mut tw::TwitterCache, queryer: &mut Queryer) {
    let mut text: String = line.trim().to_string();
    if let Some(id_end_idx) = text.find(" ") {
        let reply_bare = text.split_off(id_end_idx + 1);
        let reply = reply_bare.trim();
        let id_str = text.trim();
        if reply.len() > 0 {
            if let Some(inner_twid) = u64::from_str(&id_str).ok() {
                if let Some(twete) = tweeter.tweet_by_innerid(inner_twid) {
                    let handle = &tweeter.retrieve_user(&twete.author_id).unwrap().handle;
                    // TODO: definitely breaks if you change your handle right now
                    if handle == &tweeter.current_user.handle {
                        let substituted = ::url_encode(reply);
                        queryer.do_api_post(&format!("{}?status={}&in_reply_to_status_id={}", CREATE_TWEET_URL, substituted, twete.id));
                    } else {
                        println!("you can only thread your own tweets");
                        // ask if it should .@ instead?
                    }
                    let substituted = ::url_encode(reply);
                    queryer.do_api_post(&format!("{}?status={}&in_reply_to_status_id={}", CREATE_TWEET_URL, substituted, twete.id));
                }
            }
        } else {
            println!("thread <id> your sik reply");
        }
    } else {
        println!("thread <id> your sik reply");
    }
}

pub static REP: Command = Command {
    keyword: "rep",
    params: 2,
    exec: rep
};

fn rep(line: String, tweeter: &mut tw::TwitterCache, queryer: &mut Queryer) {
    let mut text: String = line.trim().to_string();
    if let Some(id_end_idx) = text.find(" ") {
        let reply_bare = text.split_off(id_end_idx + 1);
        let reply = reply_bare.trim();
        let id_str = text.trim();
        if reply.len() > 0 {
            if let Some(inner_twid) = u64::from_str(&id_str).ok() {
                if let Some(twete) = tweeter.tweet_by_innerid(inner_twid) {
                    // get handles to reply to...
                    let author_handle = tweeter.retrieve_user(&twete.author_id).unwrap().handle.to_owned();
                    let mut ats: Vec<String> = twete.get_mentions().into_iter().map(|x| x.to_owned()).collect(); //std::collections::HashSet::new();
                    /*
                    for handle in twete.get_mentions() {
                        ats.insert(handle);
                    }
                    */
                    ats.remove_item(&author_handle);
                    ats.insert(0, author_handle);
                    // no idea why i have to .to_owned() here --v-- what about twete.rt_tweet is a move?
                    if let Some(rt_tweet) = twete.rt_tweet.to_owned().and_then(|id| tweeter.retrieve_tweet(&id)) {
                        let rt_author_handle = tweeter.retrieve_user(&rt_tweet.author_id).unwrap().handle.to_owned();
                        ats.remove_item(&rt_author_handle);
                        ats.insert(1, rt_author_handle);
                    }
                    if let Some(qt_tweet) = twete.quoted_tweet_id.to_owned().and_then(|id| tweeter.retrieve_tweet(&id)) {
                        let qt_author_handle = tweeter.retrieve_user(&qt_tweet.author_id).unwrap().handle.to_owned();
                        ats.remove_item(&qt_author_handle);
                        ats.insert(1, qt_author_handle);
                    }
                    //let ats_vec: Vec<&str> = ats.into_iter().collect();
                    //let full_reply = format!("{} {}", ats_vec.join(" "), reply);
                    let decorated_ats: Vec<String> = ats.into_iter().map(|x| format!("@{}", x)).collect();
                    let full_reply = format!("{} {}", decorated_ats.join(" "), reply);
                    let substituted = ::url_encode(&full_reply);
//                        println!("{}", (&format!("{}?status={}&in_reply_to_status_id={}", CREATE_TWEET_URL, substituted, twete.id)));
                    queryer.do_api_post(&format!("{}?status={}&in_reply_to_status_id={}", CREATE_TWEET_URL, substituted, twete.id));
                }
            }
        } else {
            println!("rep <id> your sik reply");
        }
    } else {
        println!("rep <id> your sik reply");
    }
}

pub static QUOTE: Command = Command {
    keyword: "qt",
    params: 2,
    exec: quote
};

fn quote(line: String, tweeter: &mut tw::TwitterCache, queryer: &mut Queryer) {
    let mut text: String = line.trim().to_string();
    if let Some(id_end_idx) = text.find(" ") {
        let reply_bare = text.split_off(id_end_idx + 1);
        let reply = reply_bare.trim();
        let id_str = text.trim();
        if reply.len() > 0 {
            if let Some(inner_twid) = u64::from_str(&id_str).ok() {
                if let Some(twete) = tweeter.tweet_by_innerid(inner_twid) {
                    let substituted = ::url_encode(reply);
                    let attachment_url = ::url_encode(
                        &format!(
                            "https://www.twitter.com/{}/status/{}",
                            tweeter.retrieve_user(&twete.author_id).unwrap().handle,
                            twete.id
                        )
                    );
                    println!("{}", substituted);
                    queryer.do_api_post(
                        &format!("{}?status={}&attachment_url={}",
                                 CREATE_TWEET_URL,
                                 substituted,
                                 attachment_url
                        )
                    );
                }
            }
        } else {
            println!("rep <id> your sik reply");
        }
    } else {
        println!("rep <id> your sik reply");
    }
}

pub static RETWETE: Command = Command {
    keyword: "rt",
    params: 1,
    exec: retwete
};

fn retwete(line: String, tweeter: &mut tw::TwitterCache, queryer: &mut Queryer) {
    let inner_twid = u64::from_str(&line).unwrap();
    let twete = tweeter.tweet_by_innerid(inner_twid).unwrap();
    queryer.do_api_post(&format!("{}/{}.json", RT_TWEET_URL, twete.id));
}