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use crate::barbfile::{BarbFile, Header};
use std::collections::HashMap;
use ureq;
pub struct Context {
vars: HashMap<String, String>,
}
impl Context {
pub fn new<I>(vars: I) -> Context
where
I: Iterator<Item = (String, String)>,
{
let mut toto = HashMap::new();
toto.extend(vars);
Context { vars: toto }
}
pub fn empty() -> Context {
Context {
vars: HashMap::new(),
}
}
// Preserved for future reference
// pub fn get_var(&self, name: String) -> Option<String> {
// self.vars
// .get(&name)
// .map(|val| val.clone())
// .or_else(|| env::var(name).ok())
// }
fn key_str(&self, key: &String) -> String {
format!("{{{}}}", key)
}
pub fn substitute(&self, string: &String) -> String {
let mut buffer = string.clone();
for (key, val) in self.vars.iter() {
buffer = buffer.replace(self.key_str(key).as_str(), val);
}
buffer
}
}
pub struct Executor {
context: Context,
}
impl Executor {
pub fn new(context: Context) -> Executor {
Executor { context }
}
pub fn execute(&mut self, bfile: BarbFile) -> Result<ureq::Response, String> {
let mut req = ureq::request(
bfile.method_as_string().as_str(),
self.context.substitute(&bfile.url()).as_str(),
);
for header in bfile.headers() {
req = req.set(
header.name(),
self.context.substitute(header.value()).as_str(),
);
println!(
"{} {}",
header.name(),
self.context.substitute(header.value())
);
}
match bfile.method().takes_body() {
true => match bfile.body() {
Some(body) => req.send_string(body.as_str()),
None => req.call(),
},
false => req.call(),
}
.map_err(|_| String::from("Error"))
}
}
// TODO: tests
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_context_key_str() {
let ctx = Context::empty();
assert_eq!(ctx.key_str(&String::from("foo")), String::from("{foo}"));
}
#[test]
fn test_context_substitute() {
let vars: Vec<(String, String)> = vec![
(String::from("foo"), String::from("bar")),
(String::from("bar"), String::from("baz")),
];
let ctx = Context::new(vars.into_iter());
assert_eq!(
ctx.substitute(&String::from("blah blah {foo} blah")),
String::from("blah blah bar blah")
);
assert_eq!(
ctx.substitute(&String::from("blah {foo} {bar} blah")),
String::from("blah bar baz blah")
);
}
}
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