extends SceneTree
## Matador stab-reliability test. The matador runs in, plants at mat_stab_standoff, and its stab
## damages off the sword's own BladeHitbox collider (armed only during the thrust) — NOT a distance
## check. This drives the attack tick against a STATIONARY, real-sized bull placed beyond the
## standoff and asserts it (a) gores the bull when the thrust physically reaches it, (b) lands the
## hit during the thrust and not the wind-up/walk-up, and (c) plants at the standoff, not inside the
## bull, and (d) keeps landing on repeat stabs from the same spot (the blade re-arms each swing).
## Run: godot --headless --script res://tests/matador_stab_test.gd

var _pass := 0
var _fail := 0


func _init() -> void:
	_run.call_deferred()


func _ok(c: bool, m: String) -> void:
	if c:
		_pass += 1
		print("  PASS: ", m)
	else:
		_fail += 1
		print("  FAIL: ", m)


func _run() -> void:
	var dp := root.get_node("/root/DP")
	var standoff: float = dp.f("mat_stab_standoff")
	var strike_at: float = dp.f("mat_stab_strike_at")

	# Stationary, real-sized bull beyond the standoff — the matador runs in, plants at the standoff,
	# and its THRUST (not the walk-up) has to reach across the gap to gore it.
	var bull := CharacterBody3D.new()
	bull.collision_layer = 2
	bull.collision_mask = 0
	bull.add_to_group(&"player")
	bull.set_script(load("res://tests/_fake_bull.gd"))
	var bcs := CollisionShape3D.new()
	var bshape := CapsuleShape3D.new()
	bshape.radius = 0.75
	bshape.height = 1.845
	bcs.shape = bshape
	bull.add_child(bcs)
	root.add_child(bull)
	bull.global_position = Vector3(0.0, 0.0, standoff + 3.0)

	var mat := (load("res://Matador.tscn") as PackedScene).instantiate() as CharacterBody3D
	root.add_child(mat)             # _ready acquires the bull from the "player" group
	mat.global_position = Vector3.ZERO
	mat.set_physics_process(false)  # we drive the attack tick ourselves, isolated from the AI
	await physics_frame
	mat.call("_acquire_bull")       # normally done in _physics_process, which we disabled

	_ok(mat.get("_bull") == bull, "matador acquired the bull")
	mat.call("_carry_sword", true)    # actually draw into the hand so the BladeHitbox rides the thrust
	mat.call("_start_attack")

	dp.call("set_value", "mat_stab_followup_chance", 0.0)   # isolate repeat stabs from the break-off roll
	dp.call("set_value", "mat_stab_recovery", 0.0)          # no recovery beat gating back-to-back stabs
	dp.call("set_value", "mat_taunt_after_hit", 0.0)        # don't break off to taunt after a landed hit

	var min_dist := 999.0
	var first_hit_phase := -1.0
	var last_hits := 0
	for i in 300:                     # several swings' worth of ticks (approach + repeated stabs)
		mat.call("_tick_attack", 1.0 / 60.0)
		var d := mat.global_position.distance_to(bull.global_position)
		min_dist = minf(min_dist, d)
		if bull.hits > last_hits:
			if first_hit_phase < 0.0:
				first_hit_phase = mat.call("_swing_phase")   # phase on the frame the first hit landed
			last_hits = bull.hits
		await physics_frame

	_ok(bull.hits >= 1, "the sword's thrust reaches across the standoff and gores the bull")
	_ok(first_hit_phase >= strike_at - 0.1, "hit lands in the thrust, not the wind-up (phase %.2f)" % first_hit_phase)
	_ok(bull.hits >= 2, "repeat stabs from the same spot keep landing (%d hits)" % bull.hits)
	_ok(min_dist >= standoff - 0.5, "matador plants at the standoff, not inside the bull (closest %.2f m)" % min_dist)

	# Anti-spam: once a stab CONNECTS, a high mat_taunt_after_hit must break the matador off ATTACK
	# (into a taunt/retreat) instead of drilling the bull again. Force the roll and confirm it leaves.
	dp.call("set_value", "mat_taunt_after_hit", 1.0)
	bull.hits = 0
	mat.call("_start_attack")
	var broke_off := false
	for i in 200:
		mat.call("_tick_attack", 1.0 / 60.0)
		if mat.call("ai_state_name") != "ATTACK":
			broke_off = true
			break
		await physics_frame
	_ok(broke_off, "a landed stab breaks the matador off ATTACK (taunt/retreat), not another thrust")
	_ok(bull.hits >= 1, "the break-off only fires after the stab actually connected (%d hits)" % bull.hits)

	_finish()


func _finish() -> void:
	print("Results: %d passed, %d failed" % [_pass, _fail])
	quit(1 if _fail > 0 else 0)