// Copyright 2019-2020 Matthias Krüger. See the COPYRIGHT
// file at the top-level directory of this distribution.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.

#[path = "../src/test_helpers.rs"]
mod test_helpers;

use std::path::PathBuf;
use std::process::Command;

use path_slash::PathExt;
use walkdir::WalkDir;

#[allow(non_snake_case)]
#[test]
#[cfg_attr(feature = "offline_tests", ignore)]
fn CARGO_HOME_subdirs_are_known() {
    let cargo_v = Command::new("cargo").arg("--version").output().unwrap();
    let version_output = String::from_utf8_lossy(&cargo_v.stdout).to_string();

    //https://github.com/rust-lang/cargo/pull/10553
    let blacklist = ["1.57", "1.60", "1.61"];
    if blacklist
        .iter()
        .any(|version| version_output.contains(version))
    {
        return;
    }

    // this tests makes cargo create a new CARGO_HOME and makes sure that the paths that are found
    // are known by cargo cache
    let cargo_home = "target/cargo_home_subdirs_known_CARGO_HOME/";

    // in the fake CARGO_HOME, install cargo-cache via git
    let command = Command::new("cargo")
        .arg("install")
        .arg("--path")
        .arg("tests/all_cargo_home_paths_are_known/testcrate")
        .arg("--debug")
        .arg("--force")
        //        .current_dir(&crate_path)
        .env(
            "CARGO_TARGET_DIR",
            "target/cargo_home_dirs_are_known_target_dir/",
        )
        .env("CARGO_HOME", "target/cargo_home_subdirs_known_CARGO_HOME/")
        .output();
    // note: it does not matter if the build succeeds or not, we only need
    // cargo to initialize the CARGO_HOME

    let status = command.unwrap();

    let stderr = String::from_utf8_lossy(&status.stderr).to_string();
    let stdout = String::from_utf8_lossy(&status.stdout).to_string();

    println!("ERR {:?}", stderr);
    println!("OUT {:?}", stdout);

    assert!(
        PathBuf::from(&cargo_home).is_dir(),
        "fake cargo home was not created!"
    );

    let walkdir = WalkDir::new(cargo_home).max_depth(3);
    let mut x = walkdir
        .into_iter()
        .map(|x| {
            let x = x.unwrap();
            x.path().to_slash_lossy().into_owned()
        })
        .collect::<Vec<_>>();

    x.sort();
    x.iter().for_each(|x| println!("{:?}", x));
    /*
    "target/cargo_home_subdirs_known_CARGO_HOME/"
    "target/cargo_home_subdirs_known_CARGO_HOME/.crates.toml"
    "target/cargo_home_subdirs_known_CARGO_HOME/.crates2.toml"
    "target/cargo_home_subdirs_known_CARGO_HOME/.package-cache"
    "target/cargo_home_subdirs_known_CARGO_HOME/bin"
    "target/cargo_home_subdirs_known_CARGO_HOME/bin/cargo-cache"
    "target/cargo_home_subdirs_known_CARGO_HOME/git"
    "target/cargo_home_subdirs_known_CARGO_HOME/git/checkouts"
    "target/cargo_home_subdirs_known_CARGO_HOME/git/checkouts/cargo-cache-16826c8e13331adc"
    "target/cargo_home_subdirs_known_CARGO_HOME/git/db"
    "target/cargo_home_subdirs_known_CARGO_HOME/git/db/cargo-cache-16826c8e13331adc"
    "target/cargo_home_subdirs_known_CARGO_HOME/registry"
    "target/cargo_home_subdirs_known_CARGO_HOME/registry/cache"
    "target/cargo_home_subdirs_known_CARGO_HOME/registry/cache/github.com-1ecc6299db9ec823"
    "target/cargo_home_subdirs_known_CARGO_HOME/registry/index"
    "target/cargo_home_subdirs_known_CARGO_HOME/registry/index/github.com-1ecc6299db9ec823"
    "target/cargo_home_subdirs_known_CARGO_HOME/registry/src"
    "target/cargo_home_subdirs_known_CARGO_HOME/registry/src/github.com-1ecc6299db9ec823"
    */
    let mut x = x.into_iter();

    assert!(x
        .next()
        .unwrap()
        .starts_with("target/cargo_home_subdirs_known_CARGO_HOME"),);
    assert!(x
        .next()
        .unwrap()
        .starts_with("target/cargo_home_subdirs_known_CARGO_HOME/.crates.toml"),);
    assert!(x
        .next()
        .unwrap()
        .starts_with("target/cargo_home_subdirs_known_CARGO_HOME/.crates2.json"),);
    assert!(x
        .next()
        .unwrap()
        .starts_with("target/cargo_home_subdirs_known_CARGO_HOME/.package-cache"),);

    assert!(x
        .next()
        .unwrap()
        .starts_with("target/cargo_home_subdirs_known_CARGO_HOME/bin"),);
    assert!(x
        .next()
        .unwrap()
        .starts_with("target/cargo_home_subdirs_known_CARGO_HOME/bin/testcrate"));
    assert!(x
        .next()
        .unwrap()
        .starts_with("target/cargo_home_subdirs_known_CARGO_HOME/git"));
    assert!(x
        .next()
        .unwrap()
        .starts_with("target/cargo_home_subdirs_known_CARGO_HOME/git/CACHEDIR.TAG"));
    /* assert!(x
    .next()
    .unwrap()
    .starts_with("target/cargo_home_subdirs_known_CARGO_HOME/git/.cargo-lock-git")); */
    assert!(x
        .next()
        .unwrap()
        .starts_with("target/cargo_home_subdirs_known_CARGO_HOME/git/checkouts"));
    assert!(x.next().unwrap().starts_with(
        "target/cargo_home_subdirs_known_CARGO_HOME/git/checkouts/clippy_travis_test-"
    ));
    assert!(x
        .next()
        .unwrap()
        .starts_with("target/cargo_home_subdirs_known_CARGO_HOME/git/db"));
    assert!(x
        .next()
        .unwrap()
        .starts_with("target/cargo_home_subdirs_known_CARGO_HOME/git/db/clippy_travis_test-"));
    assert!(x
        .next()
        .unwrap()
        .starts_with("target/cargo_home_subdirs_known_CARGO_HOME/registry"));
    assert!(x
        .next()
        .unwrap()
        .starts_with("target/cargo_home_subdirs_known_CARGO_HOME/registry"));
    assert!(x
        .next()
        .unwrap()
        .starts_with("target/cargo_home_subdirs_known_CARGO_HOME/registry/cache"));
    assert!(x
        .next()
        .unwrap()
        .starts_with("target/cargo_home_subdirs_known_CARGO_HOME/registry/cache/github.com-"));
    assert!(x
        .next()
        .unwrap()
        .starts_with("target/cargo_home_subdirs_known_CARGO_HOME/registry/index"));
    assert!(x
        .next()
        .unwrap()
        .starts_with("target/cargo_home_subdirs_known_CARGO_HOME/registry/index/github.com"));
    assert!(x
        .next()
        .unwrap()
        .starts_with("target/cargo_home_subdirs_known_CARGO_HOME/registry/src"));
    assert!(x
        .next()
        .unwrap()
        .starts_with("target/cargo_home_subdirs_known_CARGO_HOME/registry/src/github.com"));
    let last = x.next(); // should have reached the end
    assert!(last.is_none(), "last iterator item is not none: {:?}", last);
}