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use std::collections::HashMap;
use serde_json;
use serde_json::{Value};
use specs::{
Component,
HashMapStorage
};
use crate::{
exchange::Exchange,
ItemId,
components::{Trigger, equipment::Stat},
RoomId
};
#[derive(Component, Debug, Clone, PartialEq)]
#[storage(HashMapStorage)]
pub enum Interactable {
Trigger(Trigger),
Say(String),
Reply(String),
Exchange(String, HashMap<String, Exchange>),
Visit(RoomId),
Mine(Stat)
}
use Interactable::*;
impl Interactable {
pub fn from_json(val: &Value) -> Option<Self> {
let typ = val.get(0)?;
let arg = val.get(1)?;
Some(match typ.as_str()? {
"trigger" => Trigger(Trigger::from_str(arg.as_str()?)?),
"say" => Say(arg.as_str()?.to_string()),
"reply" => Reply(arg.as_str()?.to_string()),
"exchange" => {
let (prefix, change) = serde_json::value::from_value::<
(String, HashMap<String, (Vec<ItemId>, Vec<ItemId>)>)
>(arg.clone()).ok()?;
Exchange(
prefix,
change.into_iter().map(
|(id, (cost, offer))| (id, Exchange{cost, offer})
).collect::<HashMap<String, Exchange>>()
)
},
"visit" => Visit(RoomId::from_str(arg.as_str()?)),
"mine" => Mine(Stat::from_str(arg.as_str()?)?),
_ => None?
})
}
pub fn accepts_arg(&self, arg: &Option<String>) -> bool {
match self {
Trigger(_) => arg.is_none(),
Say(_) => arg.is_none(),
Reply(_) => arg.is_some(),
Exchange(prefix, _exchanges) => {
if let Some(txt) = arg {
txt.starts_with(prefix)
} else {
true
}
},
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()
}
}
}
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