from lyra_worker.monitor import MonitorConfig, fulfill_owned_releases, reconcile
from tests.conftest import insert_monitored_release

CFG = MonitorConfig(enabled=True, quality_cutoff=2)


def _make_job(conn, rel_id, artist, album, state):
    with conn.cursor() as cur:
        cur.execute(
            'INSERT INTO "Request" (id, artist, album, status, "monitoredReleaseId", "createdAt") '
            "VALUES (gen_random_uuid()::text, %s, %s, 'pending', %s, now()) RETURNING id",
            (artist, album, rel_id),
        )
        req = cur.fetchone()[0]
        cur.execute(
            'INSERT INTO "Job" (id, "requestId", state, "currentStage", attempts, "createdAt", "updatedAt") '
            "VALUES (gen_random_uuid()::text, %s, %s, 'import', 1, now(), now()) RETURNING id",
            (req, state),
        )
        job = cur.fetchone()[0]
    conn.commit()
    return req, job


def _add_library(conn, req, artist, album, quality, rg_mbid=None):
    with conn.cursor() as cur:
        cur.execute(
            'INSERT INTO "LibraryItem" (id, "requestId", artist, album, path, source, format, '
            '"qualityClass", "rgMbid", "importedAt") '
            "VALUES (gen_random_uuid()::text, %s, %s, %s, '/m', 'qobuz', 'FLAC', %s, %s, now())",
            (req, artist, album, quality, rg_mbid),
        )
    conn.commit()


def _needs_attention_count(conn, rel_id):
    with conn.cursor() as cur:
        cur.execute(
            'SELECT count(*) FROM "Request" r JOIN "Job" j ON j."requestId" = r.id '
            "WHERE r.\"monitoredReleaseId\" = %s AND j.state = 'needs_attention'",
            (rel_id,),
        )
        return cur.fetchone()[0]


def _release(conn, rel_id):
    with conn.cursor() as cur:
        cur.execute(
            'SELECT state, "currentQualityClass", "firstGrabbedAt" IS NOT NULL '
            'FROM "MonitoredRelease" WHERE id = %s',
            (rel_id,),
        )
        return cur.fetchone()


def test_imported_below_cutoff_becomes_grabbed(conn):
    rel = insert_monitored_release(conn, artist_name="A", album="B", rg_mbid="rg-1",
                                   monitored=True, state="wanted")
    req, job = _make_job(conn, rel, "A", "B", "imported")
    _add_library(conn, req, "A", "B", 1)
    reconcile(conn, job, CFG)
    assert _release(conn, rel) == ("grabbed", 1, True)


def test_imported_at_cutoff_becomes_fulfilled(conn):
    rel = insert_monitored_release(conn, artist_name="A", album="B", rg_mbid="rg-1",
                                   monitored=True, state="wanted")
    req, job = _make_job(conn, rel, "A", "B", "imported")
    _add_library(conn, req, "A", "B", 3)
    reconcile(conn, job, CFG)
    assert _release(conn, rel) == ("fulfilled", 3, True)


def test_needs_attention_leaves_wanted(conn):
    rel = insert_monitored_release(conn, artist_name="A", album="B", rg_mbid="rg-1",
                                   monitored=True, state="wanted")
    _req, job = _make_job(conn, rel, "A", "B", "needs_attention")
    reconcile(conn, job, CFG)
    assert _release(conn, rel) == ("wanted", None, False)


def test_finish_job_reconciles_even_when_monitor_disabled(conn):
    # Regression: a manually-wanted release that gets pressed must transition to fulfilled
    # (and drop off the Wanted list) even with the monitor off — reconcile is core
    # correctness, not a monitor-sweep feature.
    from lyra_worker.main import finish_job

    rel = insert_monitored_release(conn, artist_name="A", album="B", rg_mbid="rg-1",
                                   monitored=True, state="wanted")
    req, job = _make_job(conn, rel, "A", "B", "imported")
    _add_library(conn, req, "A", "B", 3)
    finish_job(conn, job, MonitorConfig(enabled=False, quality_cutoff=2))
    assert _release(conn, rel) == ("fulfilled", 3, True)


def test_fulfill_owned_releases_backfills_stuck_wanted(conn):
    # A release pressed while the monitor was off: owned in the library at cutoff, but its
    # MonitoredRelease is still 'wanted' (never reconciled). Startup backfill fixes it.
    rel = insert_monitored_release(conn, artist_name="A", album="B", rg_mbid="rg-1",
                                   monitored=True, state="wanted")
    other = insert_monitored_release(conn, artist_name="C", album="D", rg_mbid="rg-2",
                                     monitored=True, state="wanted")  # not owned → stays wanted
    _add_library(conn, None, "A", "B", 3)
    cfg = MonitorConfig(quality_cutoff=2)
    assert fulfill_owned_releases(conn, cfg) == 1
    assert _release(conn, rel) == ("fulfilled", 3, True)
    assert _release(conn, other)[0] == "wanted"
    assert fulfill_owned_releases(conn, cfg) == 0  # idempotent


def test_fulfill_owned_releases_ignores_below_cutoff(conn):
    rel = insert_monitored_release(conn, artist_name="A", album="B", rg_mbid="rg-1",
                                   monitored=True, state="wanted")
    _add_library(conn, None, "A", "B", 1)  # owned but below cutoff → keep wanting (upgrade)
    assert fulfill_owned_releases(conn, MonitorConfig(quality_cutoff=2)) == 0
    assert _release(conn, rel)[0] == "wanted"


def test_reconcile_matches_by_rgmbid_when_artist_name_canonicalized(conn):
    # Real 'Kanye West' -> 'Ye' bug: the MonitoredRelease keeps the followed name, but the
    # imported LibraryItem carries MusicBrainz's canonical artist. Matching on rgMbid lets the
    # release reconcile to fulfilled instead of looking un-owned and re-pressing forever.
    rel = insert_monitored_release(conn, artist_name="Kanye West", album="Graduation",
                                   rg_mbid="rg-grad", monitored=True, state="wanted")
    req, job = _make_job(conn, rel, "Kanye West", "Graduation", "imported")
    _add_library(conn, req, "Ye", "Graduation", 3, rg_mbid="rg-grad")
    reconcile(conn, job, CFG)
    assert _release(conn, rel) == ("fulfilled", 3, True)


def test_reconcile_fulfilled_retires_failed_sibling_attempts(conn):
    # 'V' by Maroon 5 phantom: earlier failed attempts leave needs_attention Request rows that
    # keep showing on the press even after a later attempt imports. A successful import retires
    # those failed siblings so the press stops showing an owned album as needing attention.
    rel = insert_monitored_release(conn, artist_name="Maroon 5", album="V", rg_mbid="rg-v",
                                   monitored=True, state="wanted")
    _make_job(conn, rel, "Maroon 5", "V", "needs_attention")
    _make_job(conn, rel, "Maroon 5", "V", "needs_attention")
    req, job = _make_job(conn, rel, "Maroon 5", "V", "imported")
    _add_library(conn, req, "Maroon 5", "V", 2)
    reconcile(conn, job, CFG)
    assert _release(conn, rel)[0] == "fulfilled"
    assert _needs_attention_count(conn, rel) == 0  # failed siblings retired


def test_fulfill_owned_releases_matches_by_rgmbid(conn):
    # Ne-Yo -> Ne‐Yo (typographic hyphen) name drift: still owned by rgMbid.
    rel = insert_monitored_release(conn, artist_name="Ne-Yo", album="Because of You",
                                   rg_mbid="rg-ney", monitored=True, state="grabbed")
    _add_library(conn, None, "Ne‐Yo", "Because of You", 2, rg_mbid="rg-ney")
    assert fulfill_owned_releases(conn, MonitorConfig(quality_cutoff=2)) == 1
    assert _release(conn, rel) == ("fulfilled", 2, True)


def test_unlinked_job_is_ignored(conn):
    with conn.cursor() as cur:
        cur.execute(
            'INSERT INTO "Request" (id, artist, album, status, "createdAt") '
            "VALUES (gen_random_uuid()::text, 'A', 'B', 'completed', now()) RETURNING id"
        )
        req = cur.fetchone()[0]
        cur.execute(
            'INSERT INTO "Job" (id, "requestId", state, "currentStage", attempts, "createdAt", "updatedAt") '
            "VALUES (gen_random_uuid()::text, %s, 'imported', 'import', 1, now(), now()) RETURNING id",
            (req,),
        )
        job = cur.fetchone()[0]
    conn.commit()
    reconcile(conn, job, CFG)  # no monitoredReleaseId → no-op, must not raise