use std::process::Command;

fn command() -> Command {
    Command::new(env!("CARGO_BIN_EXE_panda-rpki"))
}

#[test]
fn top_level_help_and_version_are_successful() {
    for args in [vec!["--help"], vec!["-h"], vec!["--version"], vec!["-V"]] {
        let result = command().args(args).output().unwrap();
        assert!(result.status.success());
        assert!(String::from_utf8_lossy(&result.stdout).contains("panda-rpki"));
        assert!(result.stderr.is_empty());
    }
}

#[test]
fn subcommand_help_does_not_read_a_config() {
    for mode in ["validate", "daemon"] {
        let result = command()
            .args([mode, "--help", "--config", "missing.toml"])
            .output()
            .unwrap();
        assert!(result.status.success());
        assert!(String::from_utf8_lossy(&result.stdout).contains("--config FILE"));
        assert!(result.stderr.is_empty());
    }
}

#[test]
fn missing_config_and_removed_options_are_rejected_without_outputs() {
    let directory = tempfile::tempdir().unwrap();
    for args in [
        vec!["validate"],
        vec!["validate", "--tal", "input.tal"],
        vec!["daemon", "--state-root", "data"],
        vec!["validate", "--config", "missing.toml", "--unknown"],
    ] {
        let result = command()
            .current_dir(directory.path())
            .args(args)
            .output()
            .unwrap();
        assert_eq!(result.status.code(), Some(2));
        assert!(result.stdout.is_empty());
        assert!(String::from_utf8_lossy(&result.stderr).contains("panda-rpki:"));
        assert_eq!(std::fs::read_dir(directory.path()).unwrap().count(), 0);
    }
}

#[test]
fn check_config_is_read_only_for_invalid_inputs() {
    let directory = tempfile::tempdir().unwrap();
    std::fs::write(
        directory.path().join("validate.toml"),
        r#"
config-version = 1
mode = "validate"
out = "output"

[[anchors]]
id = "missing"
tal = "missing.tal"
"#,
    )
    .unwrap();

    let result = command()
        .current_dir(directory.path())
        .args(["validate", "--config", "validate.toml", "--check-config"])
        .output()
        .unwrap();
    assert_eq!(result.status.code(), Some(2));
    assert!(!directory.path().join("output").exists());

    let result = command()
        .current_dir(directory.path())
        .args(["validate", "--config", "validate.toml", "--print-config"])
        .output()
        .unwrap();
    assert_eq!(result.status.code(), Some(2));
    assert!(!directory.path().join("output").exists());
}

#[test]
fn config_mode_and_mutually_exclusive_inspection_flags_are_rejected() {
    let result = command()
        .args(["validate", "--check-config", "--print-config"])
        .output()
        .unwrap();
    assert_eq!(result.status.code(), Some(2));
    assert!(String::from_utf8_lossy(&result.stderr).contains("mutually exclusive"));
}

#[test]
fn all5_examples_load_vendored_constraints_and_disable_ignores_missing_files() {
    let directory = tempfile::tempdir().unwrap();
    let repo = std::path::Path::new(env!("CARGO_MANIFEST_DIR"));
    for (mode, example) in [
        ("validate", "validate-all5.toml"),
        ("daemon", "daemon-all5.toml"),
    ] {
        let raw = std::fs::read_to_string(repo.join("docker/examples").join(example))
            .unwrap()
            .replace("/input", repo.join("tals").to_str().unwrap())
            .replace("/output", directory.path().join("out").to_str().unwrap())
            .replace("/state", directory.path().join("state").to_str().unwrap())
            .replace("/data", directory.path().join("data").to_str().unwrap());
        let config = directory.path().join(example);
        for (enabled, missing, expected) in [(true, false, 0), (true, true, 2), (false, true, 0)] {
            let mut text = raw.replace(
                "ta-constraints-enabled = true",
                &format!("ta-constraints-enabled = {enabled}"),
            );
            if missing {
                text = text.replace(".constraints\"", ".missing\"");
            }
            std::fs::write(&config, text).unwrap();
            for inspect in ["--check-config", "--print-config"] {
                let result = command()
                    .args([mode, "--config", config.to_str().unwrap(), inspect])
                    .output()
                    .unwrap();
                assert_eq!(
                    result.status.code(),
                    Some(expected),
                    "{}",
                    String::from_utf8_lossy(&result.stderr)
                );
                if inspect == "--print-config" && expected == 0 {
                    let printed: serde_json::Value =
                        serde_json::from_slice(&result.stdout).unwrap();
                    assert_eq!(printed["effective"]["ta-constraints-enabled"], enabled);
                }
            }
        }
        assert!(!directory.path().join("out").exists());
        assert!(!directory.path().join("data").exists());
    }
}