mod file_strategies;

use file_strategies::file::Strategy as FileStrategy;
use std::path::PathBuf;

pub struct FileHandler {
   pub strategies: Vec<Box<dyn FileHandlerStrategy>>
}

impl Default for FileHandler {
    fn default() -> FileHandler {
        FileHandler {
            strategies: vec![Box::new(FileStrategy{})]
        }
    }
}

impl FileHandler {
    pub fn identify(&self, path: &PathBuf) -> FileType {
        for strategy in self.strategies.iter() {
            if strategy.is(&path) {
                return strategy.identify();
            }
        }
        FileType::Unknown
    }

    pub fn handle(&self, path: &PathBuf) {
        for strategy in self.strategies.iter() {
            if strategy.can_handle(path) {
                return strategy.handle(path);
            }
        }
    }
}

pub trait FileHandlerStrategy {
    fn is(&self, path: &PathBuf) -> bool;
    fn identify(&self) -> FileType;
    fn can_handle(&self, path: &PathBuf) -> bool;
    fn handle(&self, path: &PathBuf);
}

pub enum FileType {
    Gemini,
    File,
    Layout,
    Unknown,
}

pub struct File {
    pub path: PathBuf,
    pub file_type: FileType,
}