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use crate::files::FileService;
use dbui_core::project::ProjectSummary;
use dbui_core::Project;
use dbui_database::conn::ConnectionPool;
use std::collections::HashMap;
use std::sync::Arc;
use anyhow::Result;
#[derive(Debug)]
pub struct ProjectService {
files: Arc<FileService>,
log: slog::Logger,
pools: HashMap<String, Arc<ConnectionPool>>
}
impl ProjectService {
pub fn new(files: Arc<FileService>, logger: &slog::Logger) -> ProjectService {
ProjectService {
files,
log: logger.new(slog::o!("service" => "project")),
pools: HashMap::new()
}
}
pub fn keys(&self) -> Result<Vec<String>> {
Ok(self.files.list_json("projects")?)
}
pub fn get_all_projects(&self) -> Result<Vec<Project>> {
self.keys()?.iter().map(|k| self.get_project(k)).collect()
}
pub fn get_project_summary(&self, key: &str) -> Result<ProjectSummary> {
self.files.read_json(&format!("projects/{}", key))
}
pub fn get_project(&self, key: &str) -> Result<Project> {
let summ: ProjectSummary = self.get_project_summary(key)?;
Ok(Project::new(key.into(), summ.name, summ.connection_params))
}
pub fn set_project(&self, p: &Project) -> Result<()> {
self.files.create_dir_if_needed("projects")?;
self.files.write_json(p.to_summary(), &format!("projects/{}.json", p.key()))
}
pub fn remove_project(&self, key: &str) -> Result<()> {
self.files.remove(&format!("projects/{}.json", key))
}
pub fn open_connection(&mut self, key: String) -> Result<postgres::Client> {
match self.pools.get(&key) {
Some(pool) => pool.open(),
None => {
let pool = ConnectionPool::new(self.get_project(&key)?.conn())?;
let _ = self.pools.insert(key.clone(), Arc::new(pool));
match self.pools.get(&key) {
Some(pool) => pool.open(),
None => Err(anyhow::anyhow!("Can't find newly-inserted pool"))
}
}
}
}
}