"""ORCH-042: Settings.tracker_mode config field.

AC-1: tracker_mode defaults to "edit" and is read from env ORCH_TRACKER_MODE.
Settings is a Pydantic BaseSettings reading env at instantiation, so each case
builds a FRESH Settings() (the process-wide singleton is not mutated).
"""

from src.config import Settings


def test_tracker_mode_defaults_to_edit(monkeypatch):
    # No env var -> default "edit" (TC-01 / AC-1).
    monkeypatch.delenv("ORCH_TRACKER_MODE", raising=False)
    assert Settings().tracker_mode == "edit"


def test_tracker_mode_reads_env_bump(monkeypatch):
    # ORCH_TRACKER_MODE=bump -> "bump" (TC-01 / AC-1).
    monkeypatch.setenv("ORCH_TRACKER_MODE", "bump")
    assert Settings().tracker_mode == "bump"


def test_tracker_mode_reads_env_arbitrary(monkeypatch):
    # The field is read verbatim from env; mode RESOLUTION (anything != "bump"
    # -> edit) happens in notifications, not here (AC-1/AC-2 split).
    monkeypatch.setenv("ORCH_TRACKER_MODE", "garbage")
    assert Settings().tracker_mode == "garbage"


# ---------------------------------------------------------------------------
# ORCH-043 / TC-25: merge-gate settings defaults + env override.
# ---------------------------------------------------------------------------
_MERGE_ENV = (
    "ORCH_MERGE_GATE_ENABLED",
    "ORCH_MERGE_GATE_REPOS",
    "ORCH_MERGE_RETEST_TIMEOUT_S",
    "ORCH_MERGE_RETEST_TARGET",
    "ORCH_MERGE_LOCK_TIMEOUT_S",
    "ORCH_MERGE_DEFER_DELAY_S",
    "ORCH_MERGE_DEFER_MAX_ATTEMPTS",
)


def test_merge_gate_settings_defaults(monkeypatch):
    """TC-25 / AC-10: documented defaults when no env is set."""
    for name in _MERGE_ENV:
        monkeypatch.delenv(name, raising=False)
    s = Settings()
    assert s.merge_gate_enabled is True
    assert s.merge_gate_repos == ""
    assert s.merge_retest_timeout_s == 600
    assert s.merge_retest_target == "tests/"
    assert s.merge_lock_timeout_s == 300
    assert s.merge_defer_delay_s == 60
    assert s.merge_defer_max_attempts == 5


def test_merge_gate_settings_env_override(monkeypatch):
    """TC-25 / AC-10: each field is read from its ORCH_* env var."""
    monkeypatch.setenv("ORCH_MERGE_GATE_ENABLED", "false")
    monkeypatch.setenv("ORCH_MERGE_GATE_REPOS", "orchestrator,enduro-trails")
    monkeypatch.setenv("ORCH_MERGE_RETEST_TIMEOUT_S", "120")
    monkeypatch.setenv("ORCH_MERGE_RETEST_TARGET", "tests/unit")
    monkeypatch.setenv("ORCH_MERGE_LOCK_TIMEOUT_S", "90")
    monkeypatch.setenv("ORCH_MERGE_DEFER_DELAY_S", "5")
    monkeypatch.setenv("ORCH_MERGE_DEFER_MAX_ATTEMPTS", "9")
    s = Settings()
    assert s.merge_gate_enabled is False
    assert s.merge_gate_repos == "orchestrator,enduro-trails"
    assert s.merge_retest_timeout_s == 120
    assert s.merge_retest_target == "tests/unit"
    assert s.merge_lock_timeout_s == 90
    assert s.merge_defer_delay_s == 5
    assert s.merge_defer_max_attempts == 9