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use super::*;

#[derive(Debug)]
pub struct ArbitraryRequest(pub http::request::Request<()>);
#[derive(Debug, Clone, Copy)]
pub struct RequestStrategy;
#[derive(Debug, Clone)]
pub struct RequestValueTree(
    TupleValueTree<(
        super::uri::UriValueTree,
        MethodValueTree,
        super::header::HeaderMapValueTree,
    )>,
);

impl Arbitrary for ArbitraryRequest {
    type Strategy = RequestStrategy;
    type Parameters = ();

    fn arbitrary_with((): Self::Parameters) -> Self::Strategy {
        RequestStrategy
    }
}
impl Strategy for RequestStrategy {
    type Tree = RequestValueTree;
    type Value = ArbitraryRequest;

    fn new_tree(&self, runner: &mut TestRunner) -> NewTree<Self> {
        Ok(RequestValueTree(
            <(ArbitraryUri, ArbitraryMethod, ArbitraryHeaderMap)>::arbitrary().new_tree(runner)?,
        ))
    }
}
impl ValueTree for RequestValueTree {
    type Value = ArbitraryRequest;

    fn current(&self) -> Self::Value {
        let mut b = http::request::Builder::default();
        let (ArbitraryUri(u), ArbitraryMethod(m), ArbitraryHeaderMap(h)) = self.0.current();
        b.uri(u);
        b.method(m);
        *b.headers_mut().unwrap() = h;
        ArbitraryRequest(b.body(()).unwrap())
    }

    fn simplify(&mut self) -> bool {
        self.0.simplify()
    }

    fn complicate(&mut self) -> bool {
        self.0.complicate()
    }
}

//-----------------------------

#[derive(Debug, Eq, PartialEq)]
pub struct ArbitraryMethod(pub http::method::Method);
#[derive(Debug, Clone, Copy)]
pub struct MethodStrategy;
#[derive(Debug, Clone)]
pub struct MethodValueTree(IndexValueTree);

const METHODS: [http::Method; 5] = [
    http::method::Method::GET,
    http::method::Method::POST,
    http::method::Method::PUT,
    http::method::Method::DELETE,
    http::method::Method::TRACE,
];

impl Arbitrary for ArbitraryMethod {
    type Strategy = MethodStrategy;
    type Parameters = ();

    fn arbitrary_with((): Self::Parameters) -> Self::Strategy {
        MethodStrategy
    }
}
impl Strategy for MethodStrategy {
    type Tree = MethodValueTree;
    type Value = ArbitraryMethod;

    fn new_tree(&self, runner: &mut TestRunner) -> NewTree<Self> {
        Ok(MethodValueTree(Index::arbitrary().new_tree(runner)?))
    }
}
impl ValueTree for MethodValueTree {
    type Value = ArbitraryMethod;

    fn current(&self) -> Self::Value {
        ArbitraryMethod(self.0.current().get(&METHODS).clone())
    }

    fn simplify(&mut self) -> bool {
        self.0.simplify()
    }

    fn complicate(&mut self) -> bool {
        self.0.complicate()
    }
}