use serde::{Deserialize, Serialize};
use crate::classifier::Classifier;

#[derive(Copy, Clone, Debug, Hash, PartialEq, Eq, Serialize, Deserialize)]
pub struct UserId(pub i64);

#[derive(Debug, Serialize, Deserialize)]
pub struct UserData {
    pub login: String,
    pub email: String,
    pub full_name: Option<String>,
    pub location: Option<String>,
    pub website: Option<String>,
    pub description: Option<String>,
    // TODO: visibility
    pub repos: Vec<(RepoId, RepoData)>,
    pub issues: Vec<(IssueId, IssueData)>,
}

#[derive(Copy, Clone, Debug, Hash, PartialEq, Eq, Serialize, Deserialize)]
pub struct RepoId(pub i64);

#[derive(Debug, Serialize, Deserialize)]
pub struct RepoData {
    pub name: String,
    pub description: Option<String>,
}

#[derive(Copy, Clone, Debug, Hash, PartialEq, Eq, Serialize, Deserialize)]
pub struct IssueId(pub i64);

#[derive(Debug, Serialize, Deserialize)]
pub struct IssueData {
    pub title: String,
    pub body: String,
}

impl UserData {
    pub fn is_empty(&self) -> bool {
        self.full_name.is_none()
            && self.location.is_none()
            && self.website.is_none()
            && self.description.is_none()
            && self.repos.is_empty()
            && self.issues.is_empty()
    }

    pub fn to_tokens(&self) -> Vec<String> {
        let mut text = String::new();
        let mut add = |s: &str| {
            text += s;
            text += " "
        };

        for email_part in self.email.split('@') {
            add(email_part)
        }

        match &self.location {
            Some(s) => add(&s),
            None => add("__NO_LOCATION__"),
        }

        match &self.website {
            Some(s) => add(&s),
            None => add("__NO_WEBSITE__"),
        }

        match &self.description {
            Some(s) => add(&s),
            None => add("__NO_USER_DESCRIPTION__"),
        }

        for (_id, repo) in &self.repos {
            add(&repo.name);
            match &repo.description {
                Some(s) => add(s),
                None => add("__NO_REPO_DESCRIPTION__"),
            }
        }

        for (_id, issue) in &self.issues {
            add(&issue.title);
            add(&issue.body);
        }

        Classifier::into_word_list(&text)
    }
}