import pytest

from gti_fiscal_agent.state import AgentState


def test_outbox_keeps_failed_work_pending(tmp_path):
    state = AgentState(tmp_path / "agent.db")
    assert state.enqueue("000276", "source", "v1", "0.1.0")
    state.retry("000276")
    assert state.pending()[0]["status"] == "PENDING_API"
    state.result_received("000276", "source", "v1", "0.1.0")
    assert state.enqueue("000276", "source", "v1", "0.1.0") is False


def test_ipi_write_log_records_per_product_audit(tmp_path):
    state = AgentState(tmp_path / "agent.db")
    state.log_ipi_write("000276", "fp1", "EXACT_NCM", "IPI_RESOLVED", "SUCCEEDED", None, 3.25, "rowcount=1", "CHANGE_REQUIRED", "2026-09-18T00:00:00Z")
    log = state.ipi_write_log_for("000276")
    assert len(log) == 1
    assert log[0]["write_status"] == "SUCCEEDED"
    assert log[0]["before_value"] is None
    assert log[0]["proposed_value"] == "3.25"


def test_installation_identity_requires_an_existing_or_explicit_id(tmp_path):
    state = AgentState(tmp_path / "agent.db")

    assert state.stored_installation_id() is None
    with pytest.raises(ValueError, match="installation_id is required"):
        state.installation_id()

    assert state.connection.execute("SELECT COUNT(*) FROM installation_identity").fetchone()[0] == 0


def test_installation_identity_persists_and_reuses_explicit_id(tmp_path):
    db_path = tmp_path / "agent.db"
    state = AgentState(db_path)
    existing_id = "00000000-0000-4000-8000-000000000222"

    assert state.installation_id(existing_id) == existing_id
    assert state.installation_id() == existing_id
    assert state.stored_installation_id() == existing_id

    restarted_state = AgentState(db_path)
    assert restarted_state.installation_id() == existing_id


def test_installation_identity_rejects_conflicting_or_malformed_ids(tmp_path):
    state = AgentState(tmp_path / "agent.db")
    existing_id = "00000000-0000-4000-8000-000000000222"
    state.installation_id(existing_id)

    with pytest.raises(ValueError, match="conflicts"):
        state.installation_id("00000000-0000-4000-8000-000000000223")
    with pytest.raises(ValueError, match="UUID"):
        state.installation_id("not-a-uuid")