from pathlib import Path

from serato_doctor.health import analyze_health
from serato_doctor.models.library import Library
from serato_doctor.models.reference import TrackReference
from serato_doctor.models.track import DiskTrack


def reference(filename):
    return TrackReference(
        Path("Test.crate"), Path("/old/House") / filename, filename
    )


def track(filename, folder="House"):
    path = Path("/new") / folder / filename
    return DiskTrack(path, filename, 100, path.suffix.lower())


def test_health_report_exposes_each_metric():
    library = Library.build(
        [
            reference("Found.mp3"),
            reference("Conflict.mp3"),
            reference("Absent.mp3"),
        ],
        [
            track("Found.mp3"),
            track("Conflict 2.mp3"),
            track("Conflict 2.mp3", "Backup"),
            track("Unused.mp3"),
        ],
    )

    report = analyze_health(library)

    assert report.score == 33.3
    assert report.score_basis == (
        "Resolved crate references / total crate references"
    )
    assert report.total_references == 3
    assert report.healthy_references == 1
    assert report.missing_references == 2
    assert report.unique_missing_filenames == 2
    assert report.disk_tracks == 4
    assert report.duplicate_filename_groups == 1
    assert report.duplicate_files == 1
    assert report.unused_tracks == 3
    assert report.suggested_matches == 1


def test_empty_library_has_no_health_score():
    report = analyze_health(Library.build([], []))

    assert report.score is None
    assert report.total_references == 0