evolving 0.0.1

use std::process::Command;
use std::sync::atomic::{AtomicU64, Ordering};

fn ev() -> Command {
    Command::new(env!("CARGO_BIN_EXE_ev"))
}
fn repo() -> std::path::PathBuf {
    static N: AtomicU64 = AtomicU64::new(0);
    let p = std::env::temp_dir().join(format!(
        "ev-cap-cli-{}-{}",
        std::process::id(),
        N.fetch_add(1, Ordering::Relaxed)
    ));
    let _ = std::fs::remove_dir_all(&p);
    std::fs::create_dir_all(&p).unwrap();
    assert!(ev()
        .arg("init")
        .current_dir(&p)
        .output()
        .unwrap()
        .status
        .success());
    p
}
fn run(repo: &std::path::Path, args: &[&str]) -> std::process::Output {
    ev().args(args).current_dir(repo).output().unwrap()
}

#[test]
fn decide_should_round_trip_clean_through_verify_when_a_decision_is_well_formed() {
    // given: an initialized repo
    let r = repo();

    // when: a well-formed decision is captured
    let out = run(
        &r,
        &[
            "decide",
            "build our own retrieval; reject pgvector",
            "--observe",
            "evaluating retrieval backend",
            "--assume",
            "team has bandwidth long-term",
            "--revisit",
            "Q3 review",
            "--reject",
            "pgvector: would lock our schema",
            "--blame",
            "Wang Yu",
        ],
    );

    // then: decide succeeds and verify is clean
    assert!(
        out.status.success(),
        "decide failed: {}",
        String::from_utf8_lossy(&out.stderr)
    );
    assert!(
        run(&r, &["verify"]).status.success(),
        "verify should be clean"
    );
}

#[test]
fn decide_should_fail_when_a_test_is_force_bound_to_a_human_ground() {
    // given: an initialized repo
    let r = repo();

    // when: a decision force-binds a test to a --revisit (human) ground
    let out = run(
        &r,
        &[
            "decide",
            "d",
            "--assume",
            "team can maintain this",
            "--revisit",
            "Q3",
            "--assume-test",
            "pytest x",
            "--counter-test",
            "ct",
            "--on-platform",
            "linux-ci",
            "--triggered-by",
            "f",
            "--surface",
            "s",
            "--verified-at-sha",
            "d308afac1b2c3d4e5f60718293a4b5c6d7e8f901",
            "--blame",
            "Wang Yu",
        ],
    );

    // then: it exits non-zero (R2: never both)
    assert!(!out.status.success()); // R2: never both
}

#[test]
fn decide_should_warn_at_decide_and_fail_verify_when_the_system_is_a_self_evolve_subject() {
    // given: an initialized repo
    let r = repo();

    // when: a decision makes the system the subject of self-evolve
    let out = run(
        &r,
        &[
            "decide",
            "the retrieval system will self-evolve its schema",
            "--blame",
            "Wang Yu",
        ],
    );

    // then: decide warns but succeeds, while verify asserts R3 and fails
    assert!(out.status.success()); // decide warns, does not fail
    assert!(String::from_utf8_lossy(&out.stderr)
        .to_lowercase()
        .contains("self-evolve"));
    let v = run(&r, &["verify"]);
    assert!(!v.status.success()); // verify asserts R3
}

#[test]
fn decide_should_fail_when_a_check_is_attached_to_a_rejected_ground() {
    // given: an initialized repo
    let r = repo();

    // when: a decision attaches a test check to a --reject road
    let out = run(
        &r,
        &[
            "decide",
            "d",
            "--reject",
            "x: y",
            "--assume-test",
            "pytest x",
            "--counter-test",
            "ct",
            "--on-platform",
            "linux-ci",
            "--triggered-by",
            "f",
            "--surface",
            "s",
            "--verified-at-sha",
            "d308afac1b2c3d4e5f60718293a4b5c6d7e8f901",
            "--blame",
            "Wang Yu",
        ],
    );

    // then: it exits non-zero
    assert!(!out.status.success());
}

#[test]
fn guard_should_fail_when_the_target_tick_is_not_head() {
    // given: a repo with two decisions, so the first is no longer HEAD
    let r = repo();
    let d1 = run(&r, &["decide", "d1", "--assume", "a", "--blame", "Wang Yu"]);
    assert!(
        d1.status.success(),
        "decide d1 failed: {}",
        String::from_utf8_lossy(&d1.stderr)
    );
    let id1 = String::from_utf8_lossy(&d1.stdout)
        .split_whitespace()
        .nth(1)
        .unwrap()
        .to_string();
    assert!(
        run(&r, &["decide", "d2", "--assume", "b", "--blame", "Wang Yu"])
            .status
            .success()
    );

    // when: the non-HEAD first tick is guarded
    let out = run(
        &r,
        &[
            "guard",
            "pytest x",
            &id1,
            "a",
            "--counter-test",
            "ct",
            "--on-platform",
            "linux-ci",
            "--triggered-by",
            "f",
            "--surface",
            "s",
            "--verified-at-sha",
            "d308afac1b2c3d4e5f60718293a4b5c6d7e8f901",
            "--blame",
            "Wang Yu",
        ],
    );

    // then: it exits non-zero
    assert!(!out.status.success());
}