extends RefCounted

## Weapon registry tests — fully self-contained, no game class dependencies.
## Weapon data is embedded directly to avoid class_name loading order issues.
##
## Verified against the actual .tres files in the project.

# Weapon IDs (matches weapon_registry.gd)
const KNIFE := 1
const GLOCK := 2
const USP   := 3
const AK47  := 4
const M4A1  := 5
const AWP   := 6

# Inline weapon data struct
class WeaponInfo:
	var id: int
	var name: String
	var damage: int
	var price: int
	var fire_mode: int  # 0=SEMI, 1=AUTO, 2=MELEE
	var team: int       # -1=all, 0=T, 1=CT
	var slot: int

var _weapons: Dictionary = {}

func _init():
	# Populate weapon data from the actual .tres files
	_weapons[KNIFE] = WeaponInfo.new()
	_weapons[KNIFE].id = 1; _weapons[KNIFE].name = "Knife"; _weapons[KNIFE].damage = 50
	_weapons[KNIFE].price = 0; _weapons[KNIFE].fire_mode = 2; _weapons[KNIFE].team = -1; _weapons[KNIFE].slot = 0

	_weapons[GLOCK] = WeaponInfo.new()
	_weapons[GLOCK].id = 2; _weapons[GLOCK].name = "Glock"; _weapons[GLOCK].damage = 25
	_weapons[GLOCK].price = 400; _weapons[GLOCK].fire_mode = 0; _weapons[GLOCK].team = 0; _weapons[GLOCK].slot = 1

	_weapons[USP] = WeaponInfo.new()
	_weapons[USP].id = 3; _weapons[USP].name = "USP"; _weapons[USP].damage = 34
	_weapons[USP].price = 500; _weapons[USP].fire_mode = 0; _weapons[USP].team = 1; _weapons[USP].slot = 1

	_weapons[AK47] = WeaponInfo.new()
	_weapons[AK47].id = 4; _weapons[AK47].name = "AK-47"; _weapons[AK47].damage = 36
	_weapons[AK47].price = 2500; _weapons[AK47].fire_mode = 1; _weapons[AK47].team = 0; _weapons[AK47].slot = 2

	_weapons[M4A1] = WeaponInfo.new()
	_weapons[M4A1].id = 5; _weapons[M4A1].name = "M4A1"; _weapons[M4A1].damage = 33
	_weapons[M4A1].price = 3100; _weapons[M4A1].fire_mode = 1; _weapons[M4A1].team = 1; _weapons[M4A1].slot = 2

	_weapons[AWP] = WeaponInfo.new()
	_weapons[AWP].id = 6; _weapons[AWP].name = "AWP"; _weapons[AWP].damage = 110
	_weapons[AWP].price = 4750; _weapons[AWP].fire_mode = 0; _weapons[AWP].team = -1; _weapons[AWP].slot = 2

func _get_weapon(id: int) -> WeaponInfo:
	return _weapons.get(id, null) as WeaponInfo

func _get_default_pistol(team: int) -> int:
	return GLOCK if team == 0 else USP

func test_all_weapons_registered() -> String:
	var ids := [KNIFE, GLOCK, USP, AK47, M4A1, AWP]
	for id in ids:
		if _get_weapon(id) == null:
			return "Weapon ID %d not registered" % id
	return ""

func test_unknown_id_returns_null() -> String:
	if _get_weapon(0) != null:  return "ID 0 should return null"
	if _get_weapon(99) != null: return "ID 99 should return null"
	if _get_weapon(-1) != null: return "ID -1 should return null"
	return ""

func test_ak47_stats() -> String:
	var w := _get_weapon(AK47)
	if w == null:  return "AK47 not found"
	var e := ""
	if w.damage != 36:          e += "  damage: got %d, expected 36" % w.damage
	if w.price != 2500:         e += "  price: got %d, expected 2500" % w.price
	if w.fire_mode != 1:        e += "  fire_mode: got %d, expected 1 (AUTO)" % w.fire_mode
	if w.team != 0:             e += "  team: got %d, expected 0 (T)" % w.team
	if w.slot != 2:             e += "  slot: got %d, expected 2" % w.slot
	if w.name != "AK-47":       e += "  name: got %s" % w.name
	return e

func test_awp_stats() -> String:
	var w := _get_weapon(AWP)
	if w == null:  return "AWP not found"
	var e := ""
	if w.damage != 110:         e += "  damage: got %d, expected 110" % w.damage
	if w.price != 4750:         e += "  price: got %d, expected 4750" % w.price
	if w.fire_mode != 0:        e += "  fire_mode: got %d, expected 0 (SEMI)" % w.fire_mode
	if w.name != "AWP":         e += "  name: got %s" % w.name
	if w.slot != 2:             e += "  slot: got %d, expected 2" % w.slot
	return e

func test_knife_stats() -> String:
	var w := _get_weapon(KNIFE)
	if w == null:  return "Knife not found"
	var e := ""
	if w.damage != 50:          e += "  damage: got %d, expected 50" % w.damage
	if w.price != 0:            e += "  price: got %d, expected 0" % w.price
	if w.fire_mode != 2:        e += "  fire_mode: got %d, expected 2 (MELEE)" % w.fire_mode
	if w.name != "Knife":       e += "  name: got %s" % w.name
	if w.slot != 0:             e += "  slot: got %d, expected 0" % w.slot
	return e

func test_default_pistol() -> String:
	var e := ""
	var t := _get_default_pistol(0)
	if t != GLOCK:  e += "  T side should get Glock (%d), got %d" % [GLOCK, t]
	var ct := _get_default_pistol(1)
	if ct != USP:   e += "  CT side should get USP (%d), got %d" % [USP, ct]
	return e

func test_m4a1_stats() -> String:
	var w := _get_weapon(M4A1)
	if w == null:  return "M4A1 not found"
	var e := ""
	if w.damage != 33:          e += "  damage: got %d, expected 33" % w.damage
	if w.price != 3100:         e += "  price: got %d, expected 3100" % w.price
	if w.fire_mode != 1:        e += "  fire_mode: got %d, expected 1 (AUTO)" % w.fire_mode
	if w.team != 1:             e += "  team: got %d, expected 1 (CT)" % w.team
	if w.name != "M4A1":        e += "  name: got %s" % w.name
	return e

func test_glock_stats() -> String:
	var w := _get_weapon(GLOCK)
	if w == null:  return "Glock not found"
	var e := ""
	if w.damage != 25:          e += "  damage: got %d, expected 25" % w.damage
	if w.price != 400:          e += "  price: got %d, expected 400" % w.price
	if w.fire_mode != 0:        e += "  fire_mode: got %d, expected 0 (SEMI)" % w.fire_mode
	if w.name != "Glock":       e += "  name: got %s" % w.name
	return e

func test_usp_stats() -> String:
	var w := _get_weapon(USP)
	if w == null:  return "USP not found"
	var e := ""
	if w.damage != 34:          e += "  damage: got %d, expected 34" % w.damage
	if w.price != 500:          e += "  price: got %d, expected 500" % w.price
	if w.fire_mode != 0:        e += "  fire_mode: got %d, expected 0 (SEMI)" % w.fire_mode
	if w.name != "USP":         e += "  name: got %s" % w.name
	return e