from photoflow.core import Store
from photoflow.core.models import Asset, Cluster, ClusterMember


def _seed(tmp_path):
    s = Store(str(tmp_path / "t.db")).connect()
    for i, t in [("a", "2019-06-01"), ("b", "2019-06-02"), ("c", "2019-06-03"),
                 ("d", "2019-07-01"), ("e", "2019-07-02")]:
        s.upsert_asset(Asset(immich_id=i, taken_at=t))
    return s


def _members(ids):
    return [ClusterMember(cluster_id=0, immich_id=i) for i in ids]


def test_insert_and_members_ordered(tmp_path):
    s = _seed(tmp_path)
    cid = s.insert_cluster(Cluster(start_at="2019-06-01", end_at="2019-06-03",
                                   count=3, suggested_name="Trip 1", confidence=0.9),
                           _members(["c", "a", "b"]))
    pairs = s.cluster_members(cid)
    assert [a.immich_id for a, m in pairs] == ["a", "b", "c"]
    assert s.get_cluster(cid).suggested_name == "Trip 1"
    s.close()


def test_attention_sort(tmp_path):
    s = _seed(tmp_path)
    s.insert_cluster(Cluster(start_at="2019-06-01", end_at="2019-06-10",
                             confidence=0.9, status="pending"), _members(["a"]))
    low = s.insert_cluster(Cluster(start_at="2019-07-01", end_at="2019-07-02",
                                   confidence=0.2, status="pending"), _members(["d"]))
    s.insert_cluster(Cluster(start_at="2019-06-02", end_at="2019-06-03",
                             confidence=0.1, status="approved"), _members(["b"]))
    order = [c.id for c in s.clusters_by_attention()]
    assert order[0] == low          # lowest-confidence pending first
    assert order[-1] != low         # approved sinks to the bottom
    s.close()


def test_chronological_neighbors(tmp_path):
    s = _seed(tmp_path)
    c1 = s.insert_cluster(Cluster(start_at="2019-06-01", end_at="2019-06-03"), _members(["a"]))
    c2 = s.insert_cluster(Cluster(start_at="2019-07-01", end_at="2019-07-02"), _members(["d"]))
    assert s.chronological_neighbors(c1) == (None, c2)
    assert s.chronological_neighbors(c2) == (c1, None)
    s.close()


def test_update_and_member_inclusion(tmp_path):
    s = _seed(tmp_path)
    cid = s.insert_cluster(Cluster(start_at="2019-06-01", end_at="2019-06-03"),
                           _members(["a", "b"]))
    s.update_cluster(cid, status="approved", decided_name="Venice", reviewed_at="now")
    c = s.get_cluster(cid)
    assert c.status == "approved" and c.decided_name == "Venice"
    s.set_member_inclusion(cid, "b", False)
    inc = {m.immich_id: m.included for _, m in s.cluster_members(cid)}
    assert inc == {"a": True, "b": False}
    s.close()


def test_split_cluster(tmp_path):
    s = _seed(tmp_path)
    cid = s.insert_cluster(Cluster(start_at="2019-06-01", end_at="2019-06-03",
                                   suggested_name="Trip"), _members(["a", "b", "c"]))
    id1, id2 = s.split_cluster(cid, "c")  # boundary "c" begins the second cluster
    assert s.get_cluster(cid).status == "split"
    left = [a.immich_id for a, _ in s.cluster_members(id1)]
    right = [a.immich_id for a, _ in s.cluster_members(id2)]
    assert left == ["a", "b"] and right == ["c"]
    assert s.get_cluster(id1).status == "pending"
    s.close()


def test_merge_clusters(tmp_path):
    s = _seed(tmp_path)
    a = s.insert_cluster(Cluster(start_at="2019-06-01", end_at="2019-06-03",
                                 suggested_name="A"), _members(["a", "b"]))
    b = s.insert_cluster(Cluster(start_at="2019-07-01", end_at="2019-07-02",
                                 suggested_name="B"), _members(["d", "e"]))
    new = s.merge_clusters(a, b)
    assert s.get_cluster(a).status == "merged" and s.get_cluster(b).status == "merged"
    ids = [x.immich_id for x, _ in s.cluster_members(new)]
    assert ids == ["a", "b", "d", "e"]
    c = s.get_cluster(new)
    assert c.start_at == "2019-06-01" and c.end_at == "2019-07-02" and c.status == "pending"
    s.close()


def test_writeback_log_idempotency(tmp_path):
    s = _seed(tmp_path)
    assert s.already_applied("a", "trip", "Venice") is False
    s.log_writeback("a", "trip", "Venice", "ok")
    assert s.already_applied("a", "trip", "Venice") is True
    s.log_writeback("b", "trip", "Venice", "error:boom")
    assert s.already_applied("b", "trip", "Venice") is False  # only ok counts
    s.close()