"""L1: tht phase meta --json -- the gate reads workflow facts from here (F2).
Kills the JS/Python drift (no mirrored constants): workflow.yaml is the single source.
"""
import json

from typer.testing import CliRunner

from tht.cli import app

runner = CliRunner()


def test_phase_meta_json_returns_workflow_data():
    result = runner.invoke(app, ["phase", "meta", "--json"])
    assert result.exit_code == 0
    data = json.loads(result.stdout)
    assert data["max_phase"] == 8
    assert len(data["phases"]) == 8
    # F8 must be present — this is the exact JS-drift bug (PHASE_NAMES truncated to 7).
    assert data["phases"][7]["name"] == "datamart"
    assert data["phases"][7]["num"] == 8
    assert "advance" in data["phases"][0]
    assert "artifacts_out" in data["phases"][0]


def test_phase_meta_each_phase_carries_id_and_name():
    result = runner.invoke(app, ["phase", "meta", "--json"])
    data = json.loads(result.stdout)
    for i, p in enumerate(data["phases"], start=1):
        assert p["num"] == i
        assert p["id"], f"phase {i} missing id"
        assert p["name"], f"phase {i} missing name"


def test_phase_meta_exposes_emits():
    # Il gate filtra il ledger per fase con `emits` (recap deterministico v2).
    result = runner.invoke(app, ["phase", "meta", "--json"])
    data = json.loads(result.stdout)
    f1 = data["phases"][0]
    assert f1["emits"] == ["concept_clarified", "ambiguity_open"]