use std::path::{Path, PathBuf};
use uuid::Uuid;

mod error;
mod file;
mod fileinfo;
mod thumbnail;
mod utils;

pub use error::{Error, Result};
pub use file::File;
pub use fileinfo::FileInfo;
pub use thumbnail::Thumbnail;

pub struct App {
    files_root: PathBuf,
}

impl App {
    pub fn new(files_root: &Path) -> App {
        App {
            files_root: PathBuf::from(files_root),
        }
    }

    pub fn list_files(&self) -> Vec<Result<File>> {
        File::list(&self.files_root)
    }

    pub fn add_file(&mut self, temp_path: &PathBuf, filename: &Option<PathBuf>) -> Result<File> {
        let id = Uuid::new_v4().hyphenated().to_string();
        File::new(&id, &self.files_root, temp_path, filename)
    }

    pub fn delete_file(&mut self, id: String) -> Result<()> {
        let f = File::open(&id, &self.files_root)?;
        f.delete()
    }

    pub fn get_metadata(&self, id: String) -> Result<FileInfo> {
        FileInfo::open(&id, &self.files_root)
    }

    pub fn get_file(&self, id: String) -> Result<(FileInfo, std::fs::File)> {
        let f = File::open(&id, &self.files_root)?;
        let info = f.info();
        let stream = f.stream()?;
        Ok((info, stream))
    }

    pub fn get_thumbnail(&self, id: &str) -> Result<(FileInfo, std::fs::File)> {
        let f = File::open(id, &self.files_root)?;
        let stream = f.thumbnail().stream()?;
        Ok((f.info(), stream))
    }
}