import pytest
from conftest import golden_entries, golden_manifest

from target_revenue import conversion, validation


def test_conversion_status_not_converted_partway_through():
    manifest = golden_manifest()
    status = conversion.conversion_status(manifest, golden_entries()[:4])
    assert status.is_converted is False
    assert status.outstanding_target == 45000


def test_conversion_status_converted_after_full_sequence():
    manifest = golden_manifest()
    status = conversion.conversion_status(manifest, golden_entries())
    assert status.is_converted is True
    assert status.outstanding_target == 0
    assert status.future_license == "MIT"


def test_conversion_status_requires_no_attestation_document():
    """PRD FR-7/G6: conversion status must be computable from Manifest +
    Ledger alone, with no attestation file consulted or required."""
    manifest = golden_manifest()
    entries = golden_entries()
    status_without_attestation = conversion.conversion_status(manifest, entries)
    assert status_without_attestation.is_converted is True


def test_generate_attestation_for_converted_phase():
    manifest = golden_manifest()
    entries = golden_entries()
    attestation = conversion.generate_attestation(
        manifest, entries, conversion_timestamp="2027-06-01T00:00:00Z"
    )
    validation.validate_conversion_attestation(attestation)
    assert attestation["final_outstanding_target"] == 0
    assert attestation["final_development_credit"] == 67000
    assert attestation["final_remission_credit"] == 33000
    assert attestation["future_license"] == "MIT"
    assert attestation["phase"] == "trsl:phase:example-001"
    assert attestation["ledger_checkpoint"] == entries[-1]["id"]


def test_generate_attestation_rejects_unconverted_phase():
    manifest = golden_manifest()
    partial_entries = golden_entries()[:4]  # Outstanding Target still 45000
    with pytest.raises(ValueError, match="Outstanding Target"):
        conversion.generate_attestation(
            manifest, partial_entries, conversion_timestamp="2026-12-01T00:00:00Z"
        )