"""Trigger conditions and the arm-delay hysteresis."""

import pygame
from conftest import FakeGame, FakeLevel
from game.traps import make_condition


def ev(spec, px, py, w=20, h=28, dt=0.0):
    trap = type(
        "T", (), {"tile": 32, "sensor_rect": lambda self: pygame.Rect(100, 100, 32, 32)}
    )()
    return make_condition(spec).evaluate(trap, FakeGame(pygame.Rect(px, py, w, h)), dt)


# trap centre = (116, 116); left100 right132 top100 bottom132


def test_always():
    assert ev("always", 999, 999) is True


def test_within_radius():
    assert ev({"within": 2}, 106, 104) is True  # ~10px away
    assert ev({"within": 2}, 400, 116) is False  # far


def test_dir_left_right():
    assert ev({"dir": "left"}, 40, 105) is True  # to the left
    assert ev({"dir": "left"}, 200, 105) is False  # to the right
    assert ev({"dir": "right"}, 200, 105) is True


def test_dir_range():
    assert ev({"dir": "left", "range": 2}, 60, 105) is True  # within 2 tiles left
    assert ev({"dir": "left", "range": 2}, 10, 105) is False  # too far left


def test_dir_aligned():
    # above + aligned requires horizontal overlap with the trap column
    assert ev({"dir": "above", "aligned": True}, 108, 60) is True
    assert ev({"dir": "above", "aligned": True}, 108, 110) is False  # not above
    assert ev({"dir": "above", "aligned": True}, 400, 60) is False  # not aligned
    # without aligned, any column counts
    assert ev({"dir": "above"}, 400, 60) is True


def test_dir_inclusive():
    # trap column spans x 100..132 (centre 116). A player standing *inside* the
    # column (centre 116) is neither strictly left nor strictly right of it.
    assert ev({"dir": "left"}, 106, 105) is False  # centre 116, inside -> not left
    assert ev({"dir": "right"}, 106, 105) is False  # inside -> not right
    # inclusive counts the trap's own tile as being on that side
    assert ev({"dir": "left", "inclusive": True}, 106, 105) is True
    assert ev({"dir": "right", "inclusive": True}, 106, 105) is True
    # and vertically, too (column spans y 100..132)
    assert ev({"dir": "above"}, 108, 106) is False
    assert ev({"dir": "above", "inclusive": True}, 108, 106) is True
    assert ev({"dir": "below"}, 108, 106) is False
    assert ev({"dir": "below", "inclusive": True}, 108, 106) is True


def test_all_and_any():
    c = {"all": [{"within": 3}, {"dir": "above", "aligned": True}]}
    assert ev(c, 108, 80) is True
    assert ev(c, 108, 110) is False  # close but not above
    c2 = {"any": [{"dir": "left"}, {"dir": "right"}]}
    assert ev(c2, 40, 105) is True
    assert ev(c2, 110, 40) is False  # above-only satisfies neither


def test_timer_cycles():
    c = make_condition({"timer": {"interval": 0.3, "up_time": 0.2}})
    trap = type(
        "T", (), {"tile": 32, "sensor_rect": lambda self: pygame.Rect(0, 0, 32, 32)}
    )()
    g = FakeGame(pygame.Rect(0, 0, 4, 4))
    states = [c.evaluate(trap, g, 1 / 60) for _ in range(30)]
    assert states[0] is False  # starts in the "off" interval
    assert any(states) and not all(states)  # cycles on and off


def test_bad_condition_raises():
    import pytest

    with pytest.raises(ValueError):
        make_condition({"nope": 1})


def test_delay_hysteresis(make_level):
    # A spike within-1.6 with delay 0.25 arms only after staying in range.
    lvl = make_level("""
name: t
tile_size: 32
map: |
  #####
  #P.G#
  #####
traps:
  - type: spike
    at: [1, 1]
    trigger: { within: 5 }
    delay: 0.25
""")
    sp = lvl.traps[0]
    g = FakeGame(sp.base_rect.copy())  # player right on it -> in range
    armed = None
    for i in range(30):
        if sp.triggered(g, 1 / 60):
            armed = i
            break
    assert armed is not None and 13 <= armed <= 17  # ~0.25s = 15 frames


# --- per-target triggers/delays (a block can move AND phase) -----------------
def _block(make_level, body):
    lvl = make_level(
        "name: t\ntile_size: 32\nmap: |\n  ######\n  #P..G#\n  ######\ntraps:\n" + body
    )
    return lvl.traps[0]


def _cond(block, target):
    return type(block._trig[target]["cond"]).__name__


def test_trigger_single_condition_applies_to_all_targets(make_level):
    # A bare condition (not a target map) drives both motion and phase.
    b = _block(
        make_level, "  - type: block\n    at: [2, 1]\n    trigger: { within: 2 }\n"
    )
    assert _cond(b, "motion") == "_Within"
    assert _cond(b, "phase") == "_Within"


def test_trigger_all_any_is_a_single_condition(make_level):
    # `all`/`any` are condition keywords, not target names -> one condition.
    b = _block(
        make_level,
        "  - type: block\n    at: [2, 1]\n"
        "    trigger: { any: [ { within: 2 }, { dir: left } ] }\n",
    )
    assert _cond(b, "motion") == "_Any" and _cond(b, "phase") == "_Any"


def test_trigger_per_target_map_with_default(make_level):
    # `default` covers unnamed targets; a named target overrides it.
    b = _block(
        make_level,
        "  - type: block\n    at: [2, 1]\n    phase: true\n"
        "    trigger:\n      default: always\n      motion: { within: 5 }\n",
    )
    assert _cond(b, "motion") == "_Within"  # named
    assert _cond(b, "phase") == "_Always"  # from default


def test_trigger_unnamed_target_off_without_default(make_level):
    # A map naming only motion (no default) leaves phase with no trigger -> off.
    b = _block(
        make_level,
        "  - type: block\n    at: [2, 1]\n    phase: true\n"
        "    trigger: { motion: always }\n",
    )
    assert "phase" in b._trig_never
    assert _cond(b, "phase") == "_Never" and _cond(b, "motion") == "_Always"


def test_trigger_unknown_target_raises(make_level):
    import pytest

    with pytest.raises(ValueError):
        _block(
            make_level,
            "  - type: block\n    at: [2, 1]\n"
            "    trigger: { motion: always, bogus: always }\n",
        )


def test_delay_scalar_applies_to_all_targets(make_level):
    b = _block(make_level, "  - type: block\n    at: [2, 1]\n    delay: 0.2\n")
    assert b._trig["motion"]["delay"] == 0.2 and b._trig["phase"]["delay"] == 0.2


def test_delay_per_target_map(make_level):
    b = _block(
        make_level,
        "  - type: block\n    at: [2, 1]\n    delay: { motion: 0.1, phase: 0.3 }\n",
    )
    assert b._trig["motion"]["delay"] == 0.1 and b._trig["phase"]["delay"] == 0.3
    # unnamed-without-default delay falls back to 0 (no arm delay)
    b2 = _block(
        make_level, "  - type: block\n    at: [2, 1]\n    delay: { motion: 0.1 }\n"
    )
    assert b2._trig["phase"]["delay"] == 0.0


def test_motion_and_phase_independent_triggers(make_level):
    # The user's case: a phase block that's *always* moving but only materialises
    # when the player is near. Motion and phase read their own triggers.
    lvl = make_level("""
name: t
tile_size: 32
map: |
  ############
  #..........#
  #P........G#
  ############
traps:
  - type: block
    at: [4, 1]
    phase: true
    move: [3, 0]
    speed: 200
    fade: 0.2
    trigger:
      motion: always
      phase: { within: 2 }
""")
    b = lvl.traps[0]
    b.reset()
    far = FakeGame(pygame.Rect(1 * 32, 1 * 32, 20, 28))  # player at the far end
    x0 = b._rect().x
    for _ in range(20):
        b.tick(1 / 60, far)
    assert b._rect().x != x0  # moved (motion: always) ...
    assert b.alpha == 0.0  # ... but hasn't materialised (player far)
    near = FakeGame(pygame.Rect(b._rect().x + 2, 1 * 32, 20, 28))
    for _ in range(10):
        b.tick(1 / 60, near)
    assert b.alpha > 0.0  # phases in once the player is close