import os
import sys
import pathlib
from PIL import Image
# ensure package path is importable when running tests directly
pkg_root = pathlib.Path(__file__).resolve().parents[1]
if str(pkg_root) not in sys.path:
    sys.path.insert(0, str(pkg_root))

from map_manager.services import OpenStreetMapService
from map_manager.tile_manager import MapTileManager


def test_stitch_progress_callback(tmp_path):
    service = OpenStreetMapService()
    cache_dir = tmp_path / 'cache'
    mgr = MapTileManager(service, cache_root_directory=str(cache_dir), enable_online_tile_fetching=False)

    # monkeypatch get_tile_image to avoid network and make it quick
    def fake_get_tile_image(z, x, y, force_online_refresh=False):
        return Image.new('RGB', (mgr.tile_size, mgr.tile_size), (100, 100, 100))

    mgr.get_tile_image = fake_get_tile_image

    calls = []

    def progress_cb(done, total, last_dur, from_cache, tile_coords):
        calls.append((done, total, last_dur, from_cache, tile_coords))

    # stitch a small range (2x1 tiles => 2 tiles)
    result = mgr.stitch_map_image(1, (0, 1), (0, 0), progress_callback=progress_cb)
    assert result is not None
    # ensure callback called for each tile
    assert len(calls) == 2
    # check that totals are consistent
    for idx, call in enumerate(calls, start=1):
        done, total, last_dur, from_cache, tile_coords = call
        assert total == 2
        assert done == idx
        assert isinstance(last_dur, float)
        assert isinstance(from_cache, bool)
        assert isinstance(tile_coords, tuple) and len(tile_coords) == 3