//! End-to-end coverage for the `aura process` verb family (#188/#189): drives
//! the built `aura` binary over argv/file, the exact surface a data-level
//! author uses.

use std::path::{Path, PathBuf};
use std::sync::{Mutex, MutexGuard, OnceLock};

/// A fresh, unique working directory for a process test that persists
/// content-addressed documents under `./runs/` (so `aura process register`
/// never dirties the repo). Unique per test + per process; no external
/// tempfile dependency (mirrors `cli_run.rs` / `cli_broken_pipe.rs`).
fn temp_cwd(name: &str) -> PathBuf {
    let dir = std::env::temp_dir().join(format!("aura-cli-{}-{}", std::process::id(), name));
    let _ = std::fs::remove_dir_all(&dir);
    std::fs::create_dir_all(&dir).expect("create temp cwd");
    dir
}

fn run_code_in(dir: &Path, args: &[&str]) -> (String, Option<i32>) {
    let out = std::process::Command::new(env!("CARGO_BIN_EXE_aura"))
        .args(args)
        .current_dir(dir)
        .output()
        .expect("binary runs");
    let text = format!(
        "{}{}",
        String::from_utf8_lossy(&out.stdout),
        String::from_utf8_lossy(&out.stderr)
    );
    (text, out.status.code())
}

fn run_code(args: &[&str]) -> (String, Option<i32>) {
    run_code_in(Path::new("."), args)
}

const PROCESS_DOC: &str = r#"{
  "format_version": 1,
  "kind": "process",
  "name": "wf-deflated-screen",
  "pipeline": [
    { "block": "std::sweep", "metric": "net_expectancy_r", "select": "plateau:worst", "deflate": true },
    { "block": "std::gate", "all": [
        { "metric": "net_expectancy_r", "cmp": "gt", "value": 0.0 },
        { "metric": "overfit_probability", "cmp": "lt", "value": 0.1 } ] },
    { "block": "std::walk_forward", "in_sample_ms": 4000, "out_of_sample_ms": 1000,
      "step_ms": 1000, "mode": "rolling", "metric": "net_expectancy_r", "select": "argmax" }
  ]
}"#;

fn write_doc(dir: &Path, name: &str, text: &str) -> PathBuf {
    let p = dir.join(name);
    std::fs::write(&p, text).expect("write doc");
    p
}

#[test]
fn process_validate_reports_intrinsic_ok() {
    let dir = temp_cwd("process-validate-ok");
    write_doc(&dir, "p.process.json", PROCESS_DOC);
    let (out, code) = run_code_in(&dir, &["process", "validate", "p.process.json"]);
    assert_eq!(code, Some(0), "stdout/stderr: {out}");
    assert!(out.contains("process document valid (intrinsic): 3 pipeline blocks, 2 gate predicates"));
}

#[test]
fn process_validate_refuses_unknown_metric_as_prose_exit_1() {
    let dir = temp_cwd("process-validate-bad-metric");
    let bad = PROCESS_DOC.replacen(
        "net_expectancy_r\", \"select\": \"plateau:worst",
        "netto_r\", \"select\": \"plateau:worst",
        1,
    );
    write_doc(&dir, "bad.process.json", &bad);
    let (out, code) = run_code_in(&dir, &["process", "validate", "bad.process.json"]);
    assert_eq!(code, Some(1));
    assert!(out.contains("unknown metric \"netto_r\""));
    assert!(!out.contains("UnknownMetric"), "Debug leak: {out}");
}

#[test]
fn process_validate_refuses_zero_walk_forward_length_as_prose_exit_1() {
    let dir = temp_cwd("process-validate-zero-wf");
    let bad = PROCESS_DOC.replacen("\"step_ms\": 1000", "\"step_ms\": 0", 1);
    write_doc(&dir, "bad.process.json", &bad);
    let (out, code) = run_code_in(&dir, &["process", "validate", "bad.process.json"]);
    assert_eq!(code, Some(1), "stdout/stderr: {out}");
    assert!(out.contains("pipeline[2]: walk_forward step_ms must be > 0"), "stdout/stderr: {out}");
    assert!(!out.contains("ZeroWalkForwardLength"), "Debug leak: {out}");
}

/// A document authored against the vocabulary `std::walk_forward` carried
/// before cycle 0107 (`folds`/`in_sample_bars`/`out_of_sample_bars`, none of
/// which the engine's `WindowRoller` accepts) is refused end-to-end through
/// the CLI's malformed-document path (a parse failure, distinct from the
/// validate-fault path exercised above) with prose naming the offending
/// slot — never a Debug-formatted `DocError`, never a silent accept of the
/// retired shape.
#[test]
fn process_validate_refuses_retired_walk_forward_vocabulary_as_prose_exit_1() {
    let dir = temp_cwd("process-validate-retired-wf-vocab");
    let bad = PROCESS_DOC.replacen(
        "{ \"block\": \"std::walk_forward\", \"in_sample_ms\": 4000, \"out_of_sample_ms\": 1000,\n      \"step_ms\": 1000, \"mode\": \"rolling\", \"metric\": \"net_expectancy_r\", \"select\": \"argmax\" }",
        "{ \"block\": \"std::walk_forward\", \"folds\": 4, \"in_sample_bars\": 4000, \"out_of_sample_bars\": 1000, \"metric\": \"net_expectancy_r\", \"select\": \"argmax\" }",
        1,
    );
    assert_ne!(bad, PROCESS_DOC, "replacen must actually match the fixture's walk_forward stage");
    write_doc(&dir, "bad.process.json", &bad);
    let (out, code) = run_code_in(&dir, &["process", "validate", "bad.process.json"]);
    assert_eq!(code, Some(1), "stdout/stderr: {out}");
    assert!(out.contains("unknown slot \"folds\""), "stdout/stderr: {out}");
    assert!(!out.contains("Malformed"), "Debug leak: {out}");
}

/// The roller's second `RollMode` — `anchored` (growing, origin-fixed
/// in-sample) — round-trips through the CLI's actual validate path, not
/// just the `slot_kind_label` description string: a data author who writes
/// `"mode": "anchored"` gets a valid document, exercising the `WfMode`
/// serde oracle's non-default variant end to end.
#[test]
fn process_validate_accepts_anchored_walk_forward_mode() {
    let dir = temp_cwd("process-validate-anchored-wf-mode");
    let anchored = PROCESS_DOC.replacen("\"mode\": \"rolling\"", "\"mode\": \"anchored\"", 1);
    assert_ne!(anchored, PROCESS_DOC, "replacen must actually match the fixture's mode field");
    write_doc(&dir, "anchored.process.json", &anchored);
    let (out, code) = run_code_in(&dir, &["process", "validate", "anchored.process.json"]);
    assert_eq!(code, Some(0), "stdout/stderr: {out}");
    assert!(out.contains("process document valid (intrinsic): 3 pipeline blocks, 2 gate predicates"));
}

#[test]
fn process_introspect_vocabulary_block_and_content_id() {
    let (out, code) = run_code(&["process", "introspect", "--vocabulary"]);
    assert_eq!(code, Some(0));
    for id in ["std::sweep", "std::gate", "std::walk_forward", "std::monte_carlo", "std::generalize"] {
        assert!(out.contains(id), "vocabulary misses {id}: {out}");
    }
    let (out, code) = run_code(&["process", "introspect", "--block", "std::sweep"]);
    assert_eq!(code, Some(0));
    assert!(out.contains("metric"));
    assert!(out.contains("required"));

    let (out, code) = run_code(&["process", "introspect", "--block", "std::walk_forward"]);
    assert_eq!(code, Some(0));
    for slot in ["in_sample_ms", "out_of_sample_ms", "step_ms", "mode"] {
        assert!(out.contains(slot), "walk_forward describe misses {slot}: {out}");
    }
    assert!(out.contains("one of: rolling | anchored"), "mode label missing: {out}");
    assert!(!out.contains("folds"), "retired slot still advertised: {out}");

    let dir = temp_cwd("process-introspect-content-id");
    write_doc(&dir, "p.process.json", PROCESS_DOC);
    let (out, code) = run_code_in(&dir, &["process", "introspect", "--content-id", "p.process.json"]);
    assert_eq!(code, Some(0), "stdout/stderr: {out}");
    let line = out.lines().find(|l| l.starts_with("content:")).expect("id line");
    assert_eq!(line.len(), "content:".len() + 64);
}

#[test]
fn process_introspect_unknown_block_is_prose_exit_1() {
    let (out, code) = run_code(&["process", "introspect", "--block", "std::nope"]);
    assert_eq!(code, Some(1), "stdout/stderr: {out}");
    assert!(out.contains("unknown block \"std::nope\""), "stdout/stderr: {out}");
}

#[test]
fn process_introspect_unwired_lists_open_slots() {
    let dir = temp_cwd("process-introspect-unwired");
    let partial = r#"{ "format_version": 1, "kind": "process",
        "pipeline": [ { "block": "std::sweep", "metric": "sqn" } ] }"#;
    write_doc(&dir, "partial.process.json", partial);
    let (out, code) = run_code_in(&dir, &["process", "introspect", "--unwired", "partial.process.json"]);
    assert_eq!(code, Some(0));
    assert!(out.contains("open slot: name"));
    assert!(out.contains("open slot: pipeline[0].select"));
}

#[test]
fn process_introspect_no_flag_is_usage_exit_2() {
    let (_out, code) = run_code(&["process", "introspect"]);
    assert_eq!(code, Some(2));
}

#[test]
fn process_register_stores_content_addressed_under_runs_root() {
    let dir = temp_cwd("process-register");
    write_doc(&dir, "p.process.json", PROCESS_DOC);
    let (out, code) = run_code_in(&dir, &["process", "register", "p.process.json"]);
    assert_eq!(code, Some(0), "stdout/stderr: {out}");
    let line = out.lines().find(|l| l.starts_with("registered process content:")).expect("line");
    let id = line
        .trim_start_matches("registered process content:")
        .split(' ')
        .next()
        .expect("id");
    assert!(dir.join("runs").join("processes").join(format!("{id}.json")).is_file());
}

/// The demo-project fixture (Aura.toml present), built once — mirrors
/// `project_load.rs`'s `built_fixture` (a separate test binary, so it needs
/// its own `OnceLock`, but `cargo build` is idempotent).
fn built_project() -> &'static PathBuf {
    static BUILT: OnceLock<PathBuf> = OnceLock::new();
    BUILT.get_or_init(|| {
        let dir = Path::new(env!("CARGO_MANIFEST_DIR")).join("tests/fixtures/demo-project");
        let out = std::process::Command::new("cargo")
            .arg("build")
            .current_dir(&dir)
            .output()
            .expect("spawn cargo build for the fixture project");
        assert!(
            out.status.success(),
            "fixture build failed:\n{}",
            String::from_utf8_lossy(&out.stderr)
        );
        dir
    })
}

/// Serializes every test that touches the shared demo-project fixture store
/// (they remove/re-seed `<fixture>/runs`, so parallel test threads would race
/// on it). A poisoned lock is taken over: one failed test must not cascade
/// into unrelated lock panics.
fn project_lock() -> MutexGuard<'static, ()> {
    static LOCK: Mutex<()> = Mutex::new(());
    LOCK.lock().unwrap_or_else(|e| e.into_inner())
}

/// A scratch filesystem entry this test writes under the git-tracked
/// demo-project fixture root (only `runs/` there is fixture-gitignored),
/// removed on drop — including during a mid-test panic — so a failed
/// assertion never leaks scratch docs into tracked working-tree state.
enum ScratchPath {
    File(PathBuf),
    Dir(PathBuf),
}

struct ScratchGuard(Vec<ScratchPath>);

impl Drop for ScratchGuard {
    fn drop(&mut self) {
        for p in &self.0 {
            match p {
                ScratchPath::File(p) => {
                    let _ = std::fs::remove_file(p);
                }
                ScratchPath::Dir(p) => {
                    let _ = std::fs::remove_dir_all(p);
                }
            }
        }
    }
}

/// The `aura campaign validate` referential tier (the campaign family's
/// headline addition over the intrinsic-only process family), exercised at
/// the CLI seam inside a real project: a fully-resolved document prints the
/// "valid (referential)" success line, and an unresolved reference prints
/// the "do not resolve" fault block through `ref_fault_prose`. The
/// constituents (`validate_campaign_refs`, `ref_fault_prose`) are unit-
/// tested elsewhere; this pins that `aura campaign validate` actually wires
/// them together end to end.
#[test]
fn campaign_validate_in_project_reports_referential_tier_end_to_end() {
    let _fixture = project_lock();
    let dir = built_project();
    let runs_dir = dir.join("runs");
    std::fs::remove_dir_all(&runs_dir).ok();
    let _cleanup = ScratchGuard(vec![
        ScratchPath::Dir(runs_dir.clone()),
        ScratchPath::File(dir.join("seed.process.json")),
        ScratchPath::File(dir.join("ref-ok.campaign.json")),
        ScratchPath::File(dir.join("ref-bad.campaign.json")),
    ]);

    // Seed one real, content-addressed, open-param blueprint into the
    // project's own store via a real sweep (mirrors `project_load.rs`'s
    // anchor test).
    let open_bp = format!("{}/tests/fixtures/sma_signal_open.json", env!("CARGO_MANIFEST_DIR"));
    let (sweep_out, sweep_code) = run_code_in(
        dir,
        &[
            "sweep",
            &open_bp,
            "--axis",
            "sma_signal.fast.length=2,4",
            "--axis",
            "sma_signal.slow.length=8,16",
            "--name",
            "campaign-ref-seed",
        ],
    );
    assert_eq!(sweep_code, Some(0), "seed sweep failed: {sweep_out}");
    let bp_id = std::fs::read_dir(runs_dir.join("blueprints"))
        .expect("blueprints dir")
        .next()
        .expect("one stored blueprint")
        .expect("dir entry")
        .path()
        .file_stem()
        .expect("stem")
        .to_string_lossy()
        .into_owned();

    // Register a valid process into the same project store.
    write_doc(dir, "seed.process.json", PROCESS_DOC);
    let (proc_out, proc_code) = run_code_in(dir, &["process", "register", "seed.process.json"]);
    assert_eq!(proc_code, Some(0), "seed process register failed: {proc_out}");
    let proc_id = proc_out
        .lines()
        .find(|l| l.starts_with("registered process content:"))
        .expect("register line")
        .trim_start_matches("registered process content:")
        .split(' ')
        .next()
        .expect("id")
        .to_string();

    // "fast.length": the axis name is the RAW composite's `param_space` name.
    // `validate_campaign_refs` loads the stored blueprint bare, unlike the
    // sweep's `wrap_r`-wrapped axis probe, so it does NOT carry the
    // "sma_signal." prefix `aura sweep --axis` binds against.
    let campaign = format!(
        r#"{{
  "format_version": 1,
  "kind": "campaign",
  "name": "ref-check",
  "data": {{ "instruments": ["GER40"], "windows": [ {{ "from_ms": 1, "to_ms": 2 }} ] }},
  "strategies": [ {{ "ref": {{ "content_id": "{bp}" }},
                    "axes": {{ "fast.length": {{ "kind": "I64", "values": [2] }},
                              "slow.length": {{ "kind": "I64", "values": [6] }} }} }} ],
  "process": {{ "ref": {{ "content_id": "{proc}" }} }},
  "seed": 1,
  "presentation": {{ "persist_taps": [], "emit": ["family_table"] }}
}}"#,
        bp = bp_id,
        proc = proc_id
    );
    write_doc(dir, "ref-ok.campaign.json", &campaign);
    let (out, code) = run_code_in(dir, &["campaign", "validate", "ref-ok.campaign.json"]);
    assert_eq!(code, Some(0), "stdout/stderr: {out}");
    assert!(out.contains(
        "campaign document valid (referential): all references resolve, axes are in the param space"
    ));

    // An unresolved process reference: the fault block + `ref_fault_prose`
    // mapping, prose exit 1, at the same CLI seam.
    let bad = campaign.replace(&proc_id, "0000000000000000000000000000000000000000000000000000000000000000");
    write_doc(dir, "ref-bad.campaign.json", &bad);
    let (out2, code2) = run_code_in(dir, &["campaign", "validate", "ref-bad.campaign.json"]);
    assert_eq!(code2, Some(1));
    assert!(out2.contains("campaign references do not resolve:"), "stdout/stderr: {out2}");
    assert!(out2.contains("not found in the project store"), "stdout/stderr: {out2}");

    // `_cleanup` (a `ScratchGuard`) removes the scratch docs and `runs/` on
    // drop, at the end of this scope — including on a mid-test panic.
}

const CAMPAIGN_DOC: &str = r#"{
  "format_version": 1,
  "kind": "campaign",
  "name": "screen",
  "data": { "instruments": ["GER40"], "windows": [ { "from_ms": 1, "to_ms": 2 } ] },
  "strategies": [ { "ref": { "content_id": "9f3a" },
                    "axes": { "fast": { "kind": "I64", "values": [8] } } } ],
  "process": { "ref": { "content_id": "4e2d" } },
  "seed": 1,
  "presentation": { "persist_taps": [], "emit": ["family_table"] }
}"#;

#[test]
fn campaign_validate_outside_project_skips_referential_tier() {
    let dir = temp_cwd("campaign-validate-outside-project");
    write_doc(&dir, "c.campaign.json", CAMPAIGN_DOC);
    let (out, code) = run_code_in(&dir, &["campaign", "validate", "c.campaign.json"]);
    assert_eq!(code, Some(0), "stdout/stderr: {out}");
    assert!(out.contains("campaign document valid (intrinsic):"));
    assert!(out.contains("referential checks skipped (no Aura.toml found up from "));
}

#[test]
fn campaign_validate_refuses_empty_axis_prose_exit_1() {
    let dir = temp_cwd("campaign-validate-empty-axis");
    let bad = CAMPAIGN_DOC.replacen(r#""values": [8]"#, r#""values": []"#, 1);
    write_doc(&dir, "bad.campaign.json", &bad);
    let (out, code) = run_code_in(&dir, &["campaign", "validate", "bad.campaign.json"]);
    assert_eq!(code, Some(1));
    assert!(out.contains("axes.fast: an axis is a non-empty finite set"));
    assert!(!out.contains("EmptyAxis"), "Debug leak: {out}");
}

#[test]
fn campaign_introspect_vocabulary_lists_sections() {
    let (out, code) = run_code(&["campaign", "introspect", "--vocabulary"]);
    assert_eq!(code, Some(0));
    for id in ["std::data", "std::strategy", "std::process_ref", "std::presentation"] {
        assert!(out.contains(id), "vocabulary misses {id}: {out}");
    }
}

#[test]
fn campaign_introspect_unwired_reports_the_spec_example_slots() {
    let dir = temp_cwd("campaign-introspect-unwired");
    let draft = r#"{ "format_version": 1, "kind": "campaign", "name": "draft",
        "data": { "instruments": ["GER40"], "windows": [ { "from_ms": 1, "to_ms": 2 } ] },
        "strategies": [ { "ref": { "content_id": "9f3a" },
                          "axes": { "slow": { "kind": "I64", "values": [] } } } ],
        "seed": 1,
        "presentation": { "persist_taps": [], "emit": [] } }"#;
    write_doc(&dir, "draft.campaign.json", draft);
    let (out, code) = run_code_in(&dir, &["campaign", "introspect", "--unwired", "draft.campaign.json"]);
    assert_eq!(code, Some(0));
    assert!(out.contains("open slot: process.ref (required, content id of a process document)"));
    assert!(out.contains("open slot: strategies[0].axes.slow (axis declared empty — a P1 axis is a non-empty finite set)"));
}

/// The campaign twin of `process_introspect_vocabulary_block_and_content_id`'s
/// `--content-id` branch: pins that `campaign introspect --content-id` wires
/// `parse_valid_campaign` + `campaign_to_json` + `content_id_of` end to end
/// (the process branch was covered; this one was not).
#[test]
fn campaign_introspect_content_id_prints_hash() {
    let dir = temp_cwd("campaign-introspect-content-id");
    write_doc(&dir, "c.campaign.json", CAMPAIGN_DOC);
    let (out, code) = run_code_in(&dir, &["campaign", "introspect", "--content-id", "c.campaign.json"]);
    assert_eq!(code, Some(0), "stdout/stderr: {out}");
    let line = out.lines().find(|l| l.starts_with("content:")).expect("id line");
    assert_eq!(line.len(), "content:".len() + 64);
}

#[test]
fn campaign_register_stores_content_addressed_under_runs_root() {
    let dir = temp_cwd("campaign-register");
    write_doc(&dir, "c.campaign.json", CAMPAIGN_DOC);
    let (out, code) = run_code_in(&dir, &["campaign", "register", "c.campaign.json"]);
    assert_eq!(code, Some(0), "stdout/stderr: {out}");
    let line = out.lines().find(|l| l.starts_with("registered campaign content:")).expect("line");
    let id = line
        .trim_start_matches("registered campaign content:")
        .split(' ')
        .next()
        .expect("id");
    assert!(dir.join("runs").join("campaigns").join(format!("{id}.json")).is_file());
}

/// `guard_one_mode` is shared, family-parameterized code (`process` and
/// `campaign` both route through it). The process family already pins the
/// zero-flags arm; this pins that the campaign family gets its own family
/// name threaded into the usage line, not a copy-pasted "process" string.
#[test]
fn campaign_introspect_no_flag_usage_names_the_campaign_family() {
    let (out, code) = run_code(&["campaign", "introspect"]);
    assert_eq!(code, Some(2), "stdout/stderr: {out}");
    assert!(
        out.contains("Usage: aura campaign introspect --vocabulary | --block <ID> | --unwired <FILE> | --content-id <FILE>"),
        "stdout/stderr: {out}"
    );
}

/// `guard_one_mode` requires *exactly* one mode: the zero-flags arm is
/// pinned elsewhere, but nothing previously exercised the over-selection
/// arm (`selected_modes() != 1` is not just `== 0`). Two modes at once must
/// refuse with the same usage-exit-2 idiom, not silently pick one.
#[test]
fn campaign_introspect_two_flags_is_usage_exit_2() {
    let (out, code) = run_code(&["campaign", "introspect", "--vocabulary", "--block", "std::data"]);
    assert_eq!(code, Some(2), "stdout/stderr: {out}");
    assert!(out.contains("Usage: aura campaign introspect"), "stdout/stderr: {out}");
}

/// Register must be a gate, not a passthrough: an invalid document is
/// refused with prose (exit 1) and — the property that matters for a
/// content-addressed store — no file is ever written under `runs/campaigns/`
/// for it. A store that could contain unvalidated documents would make
/// every downstream reader re-derive the checks register was supposed to
/// have already made.
#[test]
fn campaign_register_refuses_invalid_document_and_writes_nothing() {
    let dir = temp_cwd("campaign-register-invalid");
    let bad = CAMPAIGN_DOC.replacen(r#""values": [8]"#, r#""values": []"#, 1);
    write_doc(&dir, "bad.campaign.json", &bad);
    let (out, code) = run_code_in(&dir, &["campaign", "register", "bad.campaign.json"]);
    assert_eq!(code, Some(1), "stdout/stderr: {out}");
    assert!(out.contains("refusing to register:"), "stdout/stderr: {out}");
    assert!(out.contains("axes.fast: an axis is a non-empty finite set"), "stdout/stderr: {out}");
    assert!(
        !dir.join("runs").join("campaigns").exists(),
        "register must not create a store entry for an invalid document"
    );
}

/// Seed one open-param blueprint into the built demo project's store via a
/// real sweep and return its content id (the referential test's recipe).
fn seed_blueprint(dir: &Path, name: &str) -> String {
    let open_bp = format!("{}/tests/fixtures/sma_signal_open.json", env!("CARGO_MANIFEST_DIR"));
    let (out, code) = run_code_in(
        dir,
        &[
            "sweep",
            &open_bp,
            "--axis",
            "sma_signal.fast.length=2,4",
            "--axis",
            "sma_signal.slow.length=8,16",
            "--name",
            name,
        ],
    );
    assert_eq!(code, Some(0), "seed sweep failed: {out}");
    std::fs::read_dir(dir.join("runs").join("blueprints"))
        .expect("blueprints dir")
        .next()
        .expect("one stored blueprint")
        .expect("dir entry")
        .path()
        .file_stem()
        .expect("stem")
        .to_string_lossy()
        .into_owned()
}

/// Register `doc` as a process document in the project store; returns its id.
/// Asserts register exits 0 — an intrinsically valid document (an mc-bearing
/// one included) must always register; only `campaign run` draws the v1 line.
fn register_process_doc(dir: &Path, file: &str, doc: &str) -> String {
    write_doc(dir, file, doc);
    let (out, code) = run_code_in(dir, &["process", "register", file]);
    assert_eq!(code, Some(0), "process register failed: {out}");
    out.lines()
        .find(|l| l.starts_with("registered process content:"))
        .expect("register line")
        .trim_start_matches("registered process content:")
        .split(' ')
        .next()
        .expect("id")
        .to_string()
}

/// A referentially-resolving campaign over the seeded blueprint. Axes name
/// the RAW `param_space` names (`fast.length` / `slow.length` — see the
/// naming note in the referential test above). `persist_taps`/`emit` are
/// spliced verbatim (pass `""` for empty, `"\"family_table\""` etc.).
fn campaign_doc_json(
    bp_id: &str,
    proc_id: &str,
    window: (i64, i64),
    persist_taps: &str,
    emit: &str,
) -> String {
    format!(
        r#"{{
  "format_version": 1,
  "kind": "campaign",
  "name": "run-seam",
  "data": {{ "instruments": ["GER40"], "windows": [ {{ "from_ms": {from}, "to_ms": {to} }} ] }},
  "strategies": [ {{ "ref": {{ "content_id": "{bp_id}" }},
                    "axes": {{ "fast.length": {{ "kind": "I64", "values": [2, 4] }},
                              "slow.length": {{ "kind": "I64", "values": [8, 16] }} }} }} ],
  "process": {{ "ref": {{ "content_id": "{proc_id}" }} }},
  "seed": 7,
  "presentation": {{ "persist_taps": [{persist_taps}], "emit": [{emit}] }}
}}"#,
        from = window.0,
        to = window.1,
    )
}

/// An mc-bearing process: intrinsically VALID (register accepts it) but past
/// the executable v1 boundary (`campaign run` refuses it at preflight).
const MC_PROCESS_DOC: &str = r#"{
  "format_version": 1,
  "kind": "process",
  "name": "mc-screen",
  "pipeline": [
    { "block": "std::sweep", "metric": "sqn_normalized", "select": "argmax" },
    { "block": "std::monte_carlo", "resamples": 100, "block_len": 5 }
  ]
}"#;

/// The minimal executable v1 pipeline (one sweep stage).
const SWEEP_ONLY_PROCESS_DOC: &str = r#"{
  "format_version": 1,
  "kind": "process",
  "name": "sweep-only",
  "pipeline": [ { "block": "std::sweep", "metric": "sqn_normalized", "select": "argmax" } ]
}"#;

/// The full v1 shape for the gated e2e: sweep -> gate -> walk_forward. The
/// gate (`n_trades ge 0`) passes every member, so walk-forward always has
/// survivors. Roller: 14d IS / 7d OOS / 7d step in epoch-ms, tiling the
/// ~30-day GER40 Sept-2024 campaign window.
const WF_PROCESS_DOC: &str = r#"{
  "format_version": 1,
  "kind": "process",
  "name": "screen-then-walkforward",
  "pipeline": [
    { "block": "std::sweep", "metric": "sqn_normalized", "select": "argmax" },
    { "block": "std::gate", "all": [ { "metric": "n_trades", "cmp": "ge", "value": 0.0 } ] },
    { "block": "std::walk_forward", "in_sample_ms": 1209600000, "out_of_sample_ms": 604800000,
      "step_ms": 604800000, "mode": "rolling", "metric": "net_expectancy_r", "select": "argmax" }
  ]
}"#;

/// `campaign run` outside a project refuses up front — before target
/// resolution, so not even the file-sugar registration touches a store.
#[test]
fn campaign_run_outside_project_refuses() {
    let dir = temp_cwd("campaign-run-outside-project");
    write_doc(&dir, "c.campaign.json", CAMPAIGN_DOC);
    let (out, code) = run_code_in(&dir, &["campaign", "run", "c.campaign.json"]);
    assert_eq!(code, Some(1), "stdout/stderr: {out}");
    assert!(out.contains("campaign run needs a project"), "stdout/stderr: {out}");
    assert!(
        !dir.join("runs").exists(),
        "a refused run must not create a store outside a project"
    );
}

/// A target that is neither a readable file nor a 64-hex id refuses naming
/// both readings (inside the project, past the project gate).
#[test]
fn campaign_run_bogus_target_refuses() {
    let _fixture = project_lock();
    let dir = built_project();
    let (out, code) = run_code_in(dir, &["campaign", "run", "no-such-target"]);
    assert_eq!(code, Some(1), "stdout/stderr: {out}");
    assert!(
        out.contains("'no-such-target' is neither a readable .json file nor a 64-hex content id"),
        "stdout/stderr: {out}"
    );
}

/// A well-formed but unknown content id refuses with the store-miss prose.
#[test]
fn campaign_run_unknown_id_refuses() {
    let _fixture = project_lock();
    let dir = built_project();
    let id = "0".repeat(64);
    let (out, code) = run_code_in(dir, &["campaign", "run", &id]);
    assert_eq!(code, Some(1), "stdout/stderr: {out}");
    assert!(
        out.contains(&format!("no campaign {id} in the project store")),
        "stdout/stderr: {out}"
    );
}

/// The v1 boundary: `process register` ACCEPTS an mc-bearing document (it is
/// intrinsically valid — asserted inside `register_process_doc`); only
/// `campaign run` refuses it, at preflight, before any member runs (so no
/// data is needed), with path-addressed Debug-free prose.
#[test]
fn campaign_run_v1_boundary_refuses_mc_process() {
    let _fixture = project_lock();
    let dir = built_project();
    let runs_dir = dir.join("runs");
    std::fs::remove_dir_all(&runs_dir).ok();
    let _cleanup = ScratchGuard(vec![
        ScratchPath::Dir(runs_dir.clone()),
        ScratchPath::File(dir.join("mc.process.json")),
        ScratchPath::File(dir.join("mc.campaign.json")),
    ]);
    let bp_id = seed_blueprint(dir, "campaign-run-mc-seed");
    let proc_id = register_process_doc(dir, "mc.process.json", MC_PROCESS_DOC);
    write_doc(dir, "mc.campaign.json", &campaign_doc_json(&bp_id, &proc_id, (1, 2), "", ""));
    let (out, code) = run_code_in(dir, &["campaign", "run", "mc.campaign.json"]);
    assert_eq!(code, Some(1), "stdout/stderr: {out}");
    assert!(out.contains("not executable in v1"), "stdout/stderr: {out}");
    assert!(out.contains("std::monte_carlo"), "the prose names the block: {out}");
    assert!(!out.contains("UnsupportedStage"), "Debug leak: {out}");
}

/// Non-empty persist_taps defers LOUDLY, and the note's ORDER is pinned: it
/// prints before member execution, so it is asserted here on a run
/// that refuses at the member-data seam. The [1, 2] epoch-ms window (1970)
/// makes that refusal deterministic on every machine: a data-less host
/// refuses on missing geometry, a data-ful host on a window no archive file
/// overlaps — exit 1 either way, tap note already on stderr.
#[test]
fn campaign_run_persist_taps_deferred_loudly() {
    let _fixture = project_lock();
    let dir = built_project();
    let runs_dir = dir.join("runs");
    std::fs::remove_dir_all(&runs_dir).ok();
    let _cleanup = ScratchGuard(vec![
        ScratchPath::Dir(runs_dir.clone()),
        ScratchPath::File(dir.join("taps.process.json")),
        ScratchPath::File(dir.join("taps.campaign.json")),
    ]);
    let bp_id = seed_blueprint(dir, "campaign-run-taps-seed");
    let proc_id = register_process_doc(dir, "taps.process.json", SWEEP_ONLY_PROCESS_DOC);
    write_doc(
        dir,
        "taps.campaign.json",
        &campaign_doc_json(&bp_id, &proc_id, (1, 2), "\"r_record\"", ""),
    );
    let (out, code) = run_code_in(dir, &["campaign", "run", "taps.campaign.json"]);
    assert_eq!(code, Some(1), "stdout/stderr: {out}");
    assert!(
        out.contains("aura: persist_taps not yet honored (1 tap(s) ignored)"),
        "the tap note must precede the member-data refusal: {out}"
    );
    assert!(
        out.contains("no recorded geometry") || out.contains("no data for instrument"),
        "the refusal names the data condition: {out}"
    );
}

/// Gated real-data e2e (the `cli_run.rs` skip idiom): a full
/// sweep -> gate -> walk_forward campaign over GER40 Sept-2024 where the
/// local archive is present — exit 0, emit-gated family/selection lines, a
/// final line parseable as JSON with top-level `campaign_run` linking a sweep
/// family id and a walk-forward family id, and the `campaign_runs.jsonl`
/// sibling store written. Skips with a note elsewhere so
/// `cargo test --workspace` stays green on a data-less machine.
#[test]
fn campaign_run_real_e2e_sweep_gate_walkforward() {
    let _fixture = project_lock();
    let dir = built_project();
    let runs_dir = dir.join("runs");
    std::fs::remove_dir_all(&runs_dir).ok();
    let _cleanup = ScratchGuard(vec![
        ScratchPath::Dir(runs_dir.clone()),
        ScratchPath::File(dir.join("wf.process.json")),
        ScratchPath::File(dir.join("wf.campaign.json")),
    ]);
    let bp_id = seed_blueprint(dir, "campaign-run-e2e-seed");
    let proc_id = register_process_doc(dir, "wf.process.json", WF_PROCESS_DOC);
    // The GER40 Sept-2024 window (inclusive Unix-ms) — the same gated window
    // cli_run.rs drives; ~30 days, so the (14d, 7d, 7d) roller tiles it.
    write_doc(
        dir,
        "wf.campaign.json",
        &campaign_doc_json(
            &bp_id,
            &proc_id,
            (1725148800000, 1727740799999),
            "",
            "\"family_table\", \"selection_report\"",
        ),
    );
    let (out, code) = run_code_in(dir, &["campaign", "run", "wf.campaign.json"]);

    // Skip on a data-less machine: the member-data refusal, never a panic.
    if code == Some(1)
        && (out.contains("no recorded geometry") || out.contains("no data for instrument"))
    {
        eprintln!("skip: no local GER40 data for the campaign e2e");
        return;
    }

    assert_eq!(code, Some(0), "stdout/stderr: {out}");
    let record_line = out
        .lines()
        .find(|l| l.starts_with("{\"campaign_run\":"))
        .expect("the always-on final campaign_run line");
    let v: serde_json::Value =
        serde_json::from_str(record_line).expect("campaign_run line parses as JSON");
    let cells = v["campaign_run"]["cells"].as_array().expect("cells array");
    assert_eq!(cells.len(), 1, "one (strategy, instrument, window) cell: {record_line}");
    let stages = cells[0]["stages"].as_array().expect("stages array");
    assert_eq!(stages.len(), 3, "sweep + gate + walk_forward realized: {record_line}");
    assert!(
        stages[0]["family_id"].as_str().is_some(),
        "sweep stage links a family: {record_line}"
    );
    assert_eq!(
        stages[1]["survivor_ordinals"].as_array().map(|a| a.len()),
        Some(4),
        "the always-true gate keeps all four members: {record_line}"
    );
    assert!(
        stages[2]["family_id"].as_str().is_some(),
        "walk-forward stage links a family: {record_line}"
    );
    // Emit-gated lines: per-member family_table lines (4 sweep members plus
    // the walk-forward OOS members) and at least one selection_report line.
    assert!(
        out.lines().filter(|l| l.starts_with("{\"family_id\":")).count() >= 4,
        "family_table member lines emitted: {out}"
    );
    assert!(
        out.lines().any(|l| l.starts_with("{\"selection_report\":")),
        "selection_report line emitted: {out}"
    );
    // The registry's new sibling store carries the realization record.
    assert!(
        runs_dir.join("campaign_runs.jsonl").is_file(),
        "campaign_runs.jsonl written beside runs.jsonl"
    );
}

/// `run_campaign` resolves a target two ways — a readable file (register-then-
/// run sugar) or a bare content id (direct store address) — then funnels BOTH
/// through one shared post-resolution path: "fetch the stored canonical bytes
/// by id ... so file addressing and id addressing produce the same
/// realization by construction" (the driver's own doc comment). This pins
/// that property observably: registering a document and then running it once
/// by FILE and once by its own resulting content ID must refuse with the
/// byte-identical prose — proof the two addressing modes are not two
/// independently drifting code paths. No real data needed: both runs refuse
/// at the (data-free) v1-pipeline-shape preflight.
#[test]
fn campaign_run_by_content_id_matches_file_sugar_refusal() {
    let _fixture = project_lock();
    let dir = built_project();
    let runs_dir = dir.join("runs");
    std::fs::remove_dir_all(&runs_dir).ok();
    let _cleanup = ScratchGuard(vec![
        ScratchPath::Dir(runs_dir.clone()),
        ScratchPath::File(dir.join("mc2.process.json")),
        ScratchPath::File(dir.join("mc2.campaign.json")),
    ]);
    let bp_id = seed_blueprint(dir, "campaign-run-id-seed");
    let proc_id = register_process_doc(dir, "mc2.process.json", MC_PROCESS_DOC);
    write_doc(dir, "mc2.campaign.json", &campaign_doc_json(&bp_id, &proc_id, (1, 2), "", ""));

    let (file_out, file_code) = run_code_in(dir, &["campaign", "run", "mc2.campaign.json"]);
    assert_eq!(file_code, Some(1), "stdout/stderr: {file_out}");

    let (reg_out, reg_code) = run_code_in(dir, &["campaign", "register", "mc2.campaign.json"]);
    assert_eq!(reg_code, Some(0), "register failed: {reg_out}");
    let id = reg_out
        .lines()
        .find(|l| l.starts_with("registered campaign content:"))
        .expect("register line")
        .trim_start_matches("registered campaign content:")
        .split(' ')
        .next()
        .expect("id")
        .to_string();
    let (id_out, id_code) = run_code_in(dir, &["campaign", "run", &id]);
    assert_eq!(id_code, Some(1), "stdout/stderr: {id_out}");

    let file_line = file_out.lines().find(|l| l.starts_with("aura: ")).expect("file refusal line");
    let id_line = id_out.lines().find(|l| l.starts_with("aura: ")).expect("id refusal line");
    assert_eq!(file_line, id_line, "file- and id-addressed runs must refuse identically");
}

/// Property (#196 on-ramp x #198 executor): a blueprint registered through
/// `aura graph register` — NOT the pre-#196 `aura sweep` side-effect
/// `seed_blueprint` relies on elsewhere in this file — is a fully valid
/// campaign strategy ref: its content id resolves through the referential
/// gate, and its raw param space (`fast.length`/`slow.length`, the same
/// names `graph introspect --params` reports for this fixture) binds against
/// the campaign document's axes in `bind_axes`. This closes fieldtest F5
/// ("strategy refs unresolvable from the public surface — no blueprint
/// register verb") end to end: the run reaches the member-data seam (the
/// same [1, 2] 1970 window used elsewhere in this file for a deterministic,
/// data-free refusal) rather than failing earlier at referencing or binding.
#[test]
fn campaign_run_accepts_a_graph_register_seeded_strategy() {
    let _fixture = project_lock();
    let dir = built_project();
    let runs_dir = dir.join("runs");
    std::fs::remove_dir_all(&runs_dir).ok();
    let _cleanup = ScratchGuard(vec![
        ScratchPath::Dir(runs_dir.clone()),
        ScratchPath::File(dir.join("onramp.process.json")),
        ScratchPath::File(dir.join("onramp.campaign.json")),
    ]);
    let open_bp = format!("{}/tests/fixtures/sma_signal_open.json", env!("CARGO_MANIFEST_DIR"));
    let (reg_out, reg_code) = run_code_in(dir, &["graph", "register", &open_bp]);
    assert_eq!(reg_code, Some(0), "graph register failed: {reg_out}");
    let bp_id = reg_out
        .lines()
        .find(|l| l.starts_with("registered blueprint content:"))
        .expect("register line")
        .trim_start_matches("registered blueprint content:")
        .split(' ')
        .next()
        .expect("id")
        .to_string();

    let proc_id = register_process_doc(dir, "onramp.process.json", SWEEP_ONLY_PROCESS_DOC);
    write_doc(dir, "onramp.campaign.json", &campaign_doc_json(&bp_id, &proc_id, (1, 2), "", ""));
    let (out, code) = run_code_in(dir, &["campaign", "run", "onramp.campaign.json"]);
    assert_eq!(code, Some(1), "stdout/stderr: {out}");
    assert!(
        out.contains("no recorded geometry") || out.contains("no data for instrument"),
        "referencing + axis-binding must succeed, reaching the member-data \
         seam rather than a referential or bind refusal: {out}"
    );
}

/// `campaign run`'s file-sugar branch calls `parse_valid_campaign` directly
/// (unwrapped), the SAME intrinsic validator `campaign register` calls but
/// wraps in its own "refusing to register:" prefix. This pins that `run`
/// does NOT inherit register's wrapper — an intrinsically invalid document
/// refuses with the bare "campaign document invalid:" prose — and, like
/// register, never touches the store for it. No project scaffolding, no
/// data, no seeded blueprint needed: the refusal fires before any of that is
/// read.
#[test]
fn campaign_run_invalid_file_refuses_before_touching_store() {
    // Run inside the built project (campaign run needs one, per the project
    // gate); the document fails intrinsic validation before any store or
    // referential check is reached, so the project's own store is untouched.
    let _fixture = project_lock();
    let dir = built_project();
    let runs_dir = dir.join("runs");
    std::fs::remove_dir_all(&runs_dir).ok();
    let bad = CAMPAIGN_DOC.replacen(r#""values": [8]"#, r#""values": []"#, 1);
    let bad_path = write_doc(dir, "bad.campaign.json", &bad);
    let _cleanup = ScratchGuard(vec![ScratchPath::Dir(runs_dir.clone()), ScratchPath::File(bad_path)]);

    let (out, code) = run_code_in(dir, &["campaign", "run", "bad.campaign.json"]);
    assert_eq!(code, Some(1), "stdout/stderr: {out}");
    assert!(
        out.contains("aura: campaign document invalid:"),
        "run must surface the bare doc-tier prose, not register's wrapper: {out}"
    );
    assert!(
        out.contains("axes.fast: an axis is a non-empty finite set"),
        "the doc-tier fault names the offending axis: {out}"
    );
    assert!(!out.contains("refusing to register:"), "run must not reuse register's prefix: {out}");
    assert!(
        !dir.join("runs").join("campaigns").exists(),
        "an invalid document must not create a store entry"
    );
}