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use lzlist::{LzList,Lz};
use std::ops::Deref;
use flag;
use brace;
use get::SGetter;
use std::path::PathBuf;
pub struct Cfg{
list:LzList,
loc:PathBuf,
}
impl Cfg{
pub fn load(loc:&str)->Cfg{
let rloc = &brace::env_replace(loc);
match LzList::load(rloc) {
Ok(r)=>Cfg{
list:r,
loc:PathBuf::from(rloc),
},
Err(_)=>Cfg{
list:LzList::empty(),
loc:PathBuf::from(&brace::env("$PWD")),
}
}
}
pub fn load_first<'a,L,S>(fgname:&str,locs:L)->Cfg
where L:IntoIterator<Item=S>,
S:AsRef<str>,
{
let floc = flag::Fg{}.get_s(fgname);
match floc{
Some(s)=>return Cfg::load(&s),
_=>{},
}
for l in locs {
let l2 = &brace::env_replace(&l.as_ref());
match LzList::load(l2){
Ok(r)=>return Cfg{list:r,loc:PathBuf::from(l2)},
_=>{},
}
}
Cfg{
list:LzList::empty(),
loc:PathBuf::from(""),
}
}
pub fn localize(&self,s:&str)->PathBuf{
let mut res = self.folder();
res.push(s);
res
}
pub fn folder(&self)->PathBuf{
match self.loc.parent(){
Some(r)=>PathBuf::from(r),
_ => PathBuf::new(),
}
}
pub fn lz_by_name(&self,s:&str)->Option<Lz>{
self.list.lz_by_name(s)
}
}
impl <'a> SGetter<(&'a str,&'a str)> for Cfg{
fn get_s(&self, fc:(&str,&str))->Option<String>{
let (fg,ct) = fc;
let fres = flag::Fg{}.get_s(fg);
match fres {
Some(_)=>return fres,
_=>{},
}
self.list.get_s(ct)
}
}