# test_class_specialization_parity.gd —— 40250 角色 30 级转职与无损洗髓 1:1 回归测试套件
extends SceneTree

const ClassSpecializationSystem = preload("res://class_specialization_system.gd")

var _passed := 0
var _failed := 0

func _assert(cond: bool, msg: String) -> void:
	if cond:
		_passed += 1
		print("  [PASS] %s" % msg)
	else:
		_failed += 1
		printerr("  [FAIL] %s" % msg)

func _init() -> void:
	print("\n=== Running test_class_specialization_parity (Direction 3: Class Specialization 1:1) ===")
	_test_spec_tree_configuration()
	_test_level_30_requirement()
	_test_choosing_specialization()
	_test_skill_point_allocation()
	_test_reset_specialization_lossless()
	_finish()

func _test_spec_tree_configuration() -> void:
	print("\n--- Test 1: 4 Classes x 2 Specializations Tree ---")
	var sys := ClassSpecializationSystem.new()
	for j in [0, 1, 2, 3]:
		var specs = sys.get_available_specializations(j)
		_assert(specs.size() == 2, "Job %d has exactly 2 specialization branches" % j)
		_assert(specs.has(1) and specs.has(2), "Branches are 1 and 2")
		_assert(specs[1]["skills"].size() == 5, "Branch 1 has 5 skills")
		_assert(specs[2]["skills"].size() == 5, "Branch 2 has 5 skills")

func _test_level_30_requirement() -> void:
	print("\n--- Test 2: Level 30 Requirement ---")
	var sys := ClassSpecializationSystem.new()
	var low_lvl_player := {"job": 0, "level": 25, "skill_group": 0}

	var fail_res = sys.choose_specialization(1, low_lvl_player)
	_assert(fail_res["ok"] == false and fail_res["reason"] == "LEVEL_TOO_LOW", "Level 25 rejected")

func _test_choosing_specialization() -> void:
	print("\n--- Test 3: Choosing Specialization (Warrior Body) ---")
	var sys := ClassSpecializationSystem.new()
	var player := {"job": 0, "level": 35, "skill_group": 0, "skill_points": 35}

	var spec_sig := {"fired": false, "job": -1, "spec_id": 0}
	sys.specialization_chosen.connect(func(j: int, sid: int, _name: String):
		spec_sig["fired"] = true
		spec_sig["job"] = j
		spec_sig["spec_id"] = sid
	)

	# Choose Arahan (Body Warrior)
	var res = sys.choose_specialization(1, player)
	_assert(res["ok"] == true, "Specialization chosen")
	_assert(player["skill_group"] == 1, "skill_group set to 1")
	_assert(player["skills"].size() == 5, "5 skills initialized")
	_assert(player["skills"].has(4) and player["skills"][4]["name"] == "剑气", "Has Aura of Sword (4)")
	_assert(spec_sig["fired"] == true and spec_sig["spec_id"] == 1, "specialization_chosen signal emitted")

	# Duplicate choice without reset must fail
	var fail_dup = sys.choose_specialization(2, player)
	_assert(fail_dup["ok"] == false and fail_dup["reason"] == "ALREADY_SPECIALIZED", "Cannot re-choose without reset")

func _test_skill_point_allocation() -> void:
	print("\n--- Test 4: Skill Point Allocation ---")
	var sys := ClassSpecializationSystem.new()
	var player := {"job": 0, "level": 35, "skill_group": 1, "skill_points": 5, "skills": {
		4: {"name": "剑气", "level": 0}
	}}

	var alloc_sig := {"fired": false, "vnum": 0, "lvl": 0}
	sys.skill_point_allocated.connect(func(v: int, l: int, _r: int):
		alloc_sig["fired"] = true
		alloc_sig["vnum"] = v
		alloc_sig["lvl"] = l
	)

	# Allocate 3 points into Aura of Sword
	sys.allocate_skill_point(4, player)
	sys.allocate_skill_point(4, player)
	sys.allocate_skill_point(4, player)
	_assert(player["skills"][4]["level"] == 3, "Aura of Sword leveled to 3")
	_assert(player["skill_points"] == 2, "Remaining points 5 - 3 = 2")
	_assert(alloc_sig["fired"] == true and alloc_sig["lvl"] == 3, "skill_point_allocated emitted")

	# Cap test: level 20 is max normal level
	player["skills"][4]["level"] = 20
	var fail_cap = sys.allocate_skill_point(4, player)
	_assert(fail_cap["ok"] == false and fail_cap["reason"] == "MAX_NORMAL_LEVEL", "Cannot allocate past level 20")

func _test_reset_specialization_lossless() -> void:
	print("\n--- Test 5: Lossless Reset with Scroll (71100) & Branch Switch ---")
	var sys := ClassSpecializationSystem.new()
	var player := {
		"job": 0,
		"level": 40,
		"skill_group": 1, # Body
		"skill_points": 5,
		"skills": {
			1: {"name": "三连斩", "level": 10},
			4: {"name": "剑气", "level": 20}
		}
	}
	# Total points invested: 10 + 20 = 30. Remaining: 5. After refund: 35.

	var inv: Array = [
		{"vnum": ClassSpecializationSystem.VNUM_RESET_SCROLL, "name": "洗髓卷轴", "count": 1}
	]

	var reset_sig := {"fired": false, "pts": 0}
	sys.specialization_reset.connect(func(pts: int):
		reset_sig["fired"] = true
		reset_sig["pts"] = pts
	)

	var res = sys.reset_specialization(inv, player, false)
	_assert(res["ok"] == true, "Reset succeeded")
	_assert(inv[0] == null, "Reset scroll consumed")
	_assert(player["skill_group"] == 0, "skill_group reset to 0")
	_assert(player["skills"].is_empty(), "Old skills cleared")
	_assert(player["skill_points"] == 35, "All 30 points refunded (5 + 30 = 35)")
	_assert(reset_sig["fired"] == true and reset_sig["pts"] == 30, "specialization_reset emitted with 30 pts")

	# Now player can choose the other branch: Partisan (Mental Warrior)
	var switch_res = sys.choose_specialization(2, player)
	_assert(switch_res["ok"] == true, "Successfully switched to Mental Warrior (Partisan)")
	_assert(player["skill_group"] == 2, "skill_group is now 2")
	_assert(player["skills"].has(16) and player["skills"][16]["name"] == "强身术", "Has Strong Body (16)")

func _finish() -> void:
	print("\n==========================================")
	print("Class Specialization Parity Tests Finished:")
	print("Passed: %d, Failed: %d" % [_passed, _failed])
	print("==========================================")
	if _failed > 0:
		printerr("FAILED: Some tests did not pass.")
		quit(1)
	else:
		print("SUCCESS: All Class Specialization parity tests passed!")
		quit(0)