#![feature(proc_macro_hygiene, decl_macro)]
#[macro_use] extern crate rocket;
#[macro_use] extern crate serde_derive;

use rocket::response::status;
use rocket_contrib::json::Json;


use std::collections::hash_map::DefaultHasher;
use std::hash::{Hash, Hasher};


 // podman create --name test -p 3000:3000 -v $PWD:/nixide -w /nixide docker.io/nixos/nix nix-shell --pure start-ide.nix --run run_ide.sh

#[derive(Serialize, Deserialize, Hash)]
pub struct OpenGitParam 
{
    inquirer: String, 
    clone_url: String,
    ref_name: String
}

#[derive(Serialize, Deserialize, Hash)]
pub struct IdeState
{
    ide_id: String,   
    state: String 
}

struct DummyEngine{}

pub trait NixIdeManageServiceEngine {
    fn info(&self) -> String;
}

impl NixIdeManageServiceEngine for DummyEngine {
    fn info(&self) -> String {
        "infoC".to_owned()
    }
}

pub struct NixIdeManageService {
    eng :Box<dyn NixIdeManageServiceEngine>
}

unsafe impl Send for NixIdeManageService {}
unsafe impl Sync for NixIdeManageService {}

impl NixIdeManageService {
    fn info(&self) -> String {
        self.eng.info()
    }
}


#[derive(Serialize, Deserialize, Hash)]
pub struct NixIdeServerParam {
    #[serde(default = "default_listen_address")]
    listen_address: String,
    #[serde(default = "default_listen_port")]
    listen_port: u32,
    #[serde(default = "default_app_folder")]
    app_folder: String,
    #[serde(default = "default_project_folder")]
    project_folder: String,
    #[serde(default = "default_working_folder")]
    working_folder: String
}

fn default_listen_address() -> String {
    "0.0.0.0".to_owned()
}

fn default_listen_port() -> u32 {
   3000
}

fn default_app_folder() -> String {
    "_theiaideApp".to_owned()
}

fn default_project_folder() -> String {
    "$PWD".to_owned()
}

fn default_working_folder() -> String {
    "$PWD".to_owned()
}


#[get("/open/<inquirer>/git?<clone_url>&<ref_name>")]
fn v1_open_inquirer_git(inquirer: String, clone_url: String, ref_name: String) -> status::Accepted<Json<IdeState>> {
    let param = OpenGitParam {
        inquirer,
        clone_url,
        ref_name
    };

    let mut s = DefaultHasher::new();
    param.hash(&mut s);
    let hash = s.finish();

    // println!("foo {:x}", hash);
    // let out = Command::new("podman") 
    //      .arg("create") 
    //      .arg("--name")
    //      .arg(format!("{:x}", hash))
    //      .arg("-p")
    //      .arg("3000:3000")
    //      .arg("docker.io/nixos/nix")
    //     // .arg(format!("git clone {}", param.clone_url))
    //     .output()
    //     .expect("create container");
    //     String::from_utf8(out.stderr).unwrap()
   
    status::Accepted(
        Some(
            Json(
                IdeState {
                    ide_id :format!("{:x}", hash),
                    state : "opening".to_owned()
                }
            )
        )
    )
}
use rocket::State;
#[get("/state/<ide_ide>")]
fn v1_ide_state(ide_ide: String, c : State<NixIdeManageService>) -> status::Accepted<Json<IdeState>> 
{
    status::Accepted(
        Some(
            Json(
                IdeState{
                    ide_id: ide_ide,
                    state : c.info()
                }
            )
        )
    )
}

#[get("/open/<inquirer>/gitea?<clone_url>&<ref_name>")]
fn v1_open_inquirer_gitea(inquirer: String, clone_url: String, ref_name: String) -> status::Accepted<Json<OpenGitParam>> {
    let param = OpenGitParam {
        inquirer,
        clone_url,
        ref_name
    };
    status::Accepted(Some(Json(param)))
}

#[get("/open/<inquirer>/gitlab?<clone_url>&<ref_name>")]
fn v1_open_inquirer_gitlab(inquirer: String, clone_url: String, ref_name: String) -> status::Accepted<Json<OpenGitParam>> {
    let param = OpenGitParam {
        inquirer,
        clone_url,
        ref_name
    };
    status::Accepted(Some(Json(param)))
}

#[get("/open/<inquirer>/github?<clone_url>&<ref_name>")]
fn v1_open_inquirer_github(inquirer: String, clone_url: String, ref_name: String) -> status::Accepted<Json<OpenGitParam>> {
    let param = OpenGitParam {
        inquirer,
        clone_url,
        ref_name
    };
    status::Accepted(Some(Json(param)))
}

#[get("/open/gitlab?<clone_url>&<ref_name>")]
fn v1_open_gitlab(clone_url: String, ref_name: String) -> status::Accepted<Json<OpenGitParam>> {
    let param = OpenGitParam {
        inquirer : "foo".to_owned(),
        clone_url,
        ref_name
    };
    status::Accepted(Some(Json(param)))
}

use rocket::fairing::AdHoc;

fn main() {   
    let eng = DummyEngine{};
    let exectuor = NixIdeManageService{eng:Box::new(eng)};
    rocket::ignite()
        .mount("/api/v1/", routes![
            v1_open_inquirer_git,
            v1_open_inquirer_gitea, 
            v1_open_gitlab, 
            v1_open_inquirer_github, 
            v1_open_inquirer_gitlab,  
            v1_ide_state    
        ])
        .manage(exectuor)
        .attach(AdHoc::on_launch("Launch Printer", |_| {
            println!("Rocket is about to launch! Exciting! Here we go...");
        }))
        .launch();
}