use bytes::Bytes;
use flowy_dispatch::prelude::{DispatchError, EventDispatch, ModuleRequest, ToBytes};
use flowy_infra::{kv::KV, uuid};
use flowy_user::errors::{ErrorBuilder, ErrorCode, UserError};
use flowy_workspace::{
    entities::workspace::{CreateWorkspaceRequest, QueryWorkspaceRequest, Workspace},
    event::WorkspaceEvent::{CreateWorkspace, OpenWorkspace},
};
use std::{fs, path::PathBuf};

pub fn root_dir() -> String {
    // https://doc.rust-lang.org/cargo/reference/environment-variables.html
    let manifest_dir = std::env::var("CARGO_MANIFEST_DIR").unwrap_or("./".to_owned());
    let mut path_buf = fs::canonicalize(&PathBuf::from(&manifest_dir)).unwrap();
    path_buf.pop(); // rust-lib
    path_buf.push("flowy-test");
    path_buf.push("temp");
    path_buf.push("flowy");

    let root_dir = path_buf.to_str().unwrap().to_string();
    if !std::path::Path::new(&root_dir).exists() {
        std::fs::create_dir_all(&root_dir).unwrap();
    }
    root_dir
}

pub fn random_email() -> String { format!("{}@appflowy.io", uuid()) }

pub fn valid_email() -> String { "annie@appflowy.io".to_string() }

pub fn valid_password() -> String { "HelloWorld!123".to_string() }

const DEFAULT_WORKSPACE_NAME: &'static str = "My workspace";
const DEFAULT_WORKSPACE_DESC: &'static str = "This is your first workspace";
const DEFAULT_WORKSPACE: &'static str = "Default_Workspace";

pub(crate) fn create_default_workspace_if_need(user_id: &str) -> Result<(), UserError> {
    let key = format!("{}{}", user_id, DEFAULT_WORKSPACE);
    if KV::get_bool(&key).unwrap_or(false) {
        return Err(ErrorBuilder::new(ErrorCode::DefaultWorkspaceAlreadyExist).build());
    }
    KV::set_bool(&key, true);

    let payload: Bytes = CreateWorkspaceRequest {
        name: DEFAULT_WORKSPACE_NAME.to_string(),
        desc: DEFAULT_WORKSPACE_DESC.to_string(),
    }
    .into_bytes()
    .unwrap();

    let request = ModuleRequest::new(CreateWorkspace).payload(payload);
    let result = EventDispatch::sync_send(request)
        .parse::<Workspace, DispatchError>()
        .map_err(|e| ErrorBuilder::new(ErrorCode::CreateDefaultWorkspaceFailed).error(e).build())?;

    let workspace = result.map_err(|e| ErrorBuilder::new(ErrorCode::CreateDefaultWorkspaceFailed).error(e).build())?;

    let query: Bytes = QueryWorkspaceRequest {
        workspace_id: Some(workspace.id.clone()),
    }
    .into_bytes()
    .unwrap();

    let request = ModuleRequest::new(OpenWorkspace).payload(query);
    let _result = EventDispatch::sync_send(request)
        .parse::<Workspace, DispatchError>()
        .unwrap()
        .unwrap();

    Ok(())
}