use std::collections::HashMap;
use specs::{
	Component,
	HashMapStorage,
};
use crate::{
	exchange::Exchange,
	components::{Trigger, equipment::Stat},
	RoomId,
	parameter::Parameter
};

#[derive(Component, Debug, Clone, PartialEq)]
#[storage(HashMapStorage)]
pub enum Interactable {
	Trigger(Trigger),
	Visit(RoomId),
	Mine(Stat)
}

use Interactable::*;

impl Interactable {
	
	pub fn parse_from_parameter(typ: &str, arg: &Parameter) -> Option<Self> {
		Some(match (typ, arg) {
			("trigger", Parameter::String(s)) => Trigger(Trigger::from_str(s)?),
			("visit", Parameter::String(s)) => Visit(RoomId::from_str(s)),
			("mine", Parameter::String(s)) => Mine(Stat::from_str(s)?),
			_ => None?
		})
	}
	
	pub fn accepts_arg(&self, arg: &Option<String>) -> bool {
		match self {
			Trigger(_) => arg.is_none(),
			Visit(_) => {
				if let Some(txt) = arg {
					 txt.starts_with("visit ") || txt.starts_with("disallow ") || txt.starts_with("allow ") || txt.starts_with("whitelist")
				} else {
					true
				}
			}
			Mine(_) => arg.is_none()
		}
	}
}

#[derive(Component, Debug, Clone, PartialEq)]
#[storage(HashMapStorage)]
pub struct Talkable {
	pub text: String
}


#[derive(Component, Debug, Clone, PartialEq)]
#[storage(HashMapStorage)]
pub struct Exchanger {
	pub prefix: String,
	pub exchanges: HashMap<String, Exchange>
}