extends Node2D

const PLAYER := preload("res://scenes/game/player_ship.tscn")
const PROJECTILE := preload("res://scenes/game/weapon_projectile.tscn")

func _ready() -> void:
	GameState.start_new_run()
	var ship := PLAYER.instantiate() as CharacterBody2D
	add_child(ship)
	ship.set_physics_process(false)
	var weapons := ship.get_node("WeaponController")
	weapons.set_physics_process(false)
	var inventory := ship.get_node("ShipInventory") as ShipInventory
	assert(inventory.weapon_slots.size() == 3)
	assert(inventory.get_missile_count() == 2 and inventory.get_cargo_used() == 0)
	var launcher := ItemInstance.new()
	launcher.definition = ShipInventory.MISSILE_DEFINITIONS[0]
	assert(inventory.add_item(launcher))
	assert(inventory.can_move_item("cargo", 0, "weapon", 0))
	assert(inventory.can_move_item("weapon", 0, "weapon", 2))
	assert(inventory.move_item("cargo", 0, "weapon", 2))
	assert(inventory.can_move_item("weapon", 2, "weapon", 0))
	assert(not inventory.move_item("weapon", 2, "module", 0))
	var energy_before := float(ship.get("energy"))
	var missile := inventory.weapon_slots[2]
	assert(missile.get_energy_cost() == 0.0)
	var addon := ItemStatModifier.new()
	addon.stat_key = "missile_cooldown_reduction"
	addon.value = 0.1
	missile.additional_modifiers.append(addon)
	assert(is_equal_approx(inventory.get_missile_cooldown(missile), 4.9))
	var middle := InputEventMouseButton.new()
	middle.button_index = MOUSE_BUTTON_MIDDLE
	middle.pressed = true
	assert(InputMap.action_has_event("ship_fire_missile", middle))
	weapons.call("_unhandled_input", middle)
	weapons.call("_physics_process", 0.1)
	assert(ship.get("energy") == energy_before and inventory.get_missile_count() == 1)
	assert(inventory.weapon_slots[2] == missile and missile.additional_modifiers[0] == addon)
	assert(is_equal_approx(weapons.get("missile_cooldown_remaining"), 4.9))
	assert(not weapons.call("try_fire_missile"))
	weapons.call("_physics_process", 2.0)
	assert(is_equal_approx(weapons.get("missile_cooldown_remaining"), 2.9))
	weapons.call("_physics_process", 3.0)
	assert(weapons.call("try_fire_missile"))
	assert(inventory.get_missile_count() == 0 and inventory.weapon_slots[2] == missile)
	weapons.set("missile_cooldown_remaining", 0.0)
	assert(not weapons.call("try_fire_missile"))
	assert(inventory.weapon_slots[2] == missile and ship.get("energy") == energy_before)
	GameState.captain.parts = 49.0
	assert(not inventory.craft_missile())
	GameState.captain.minerals.merge({"iron": 1, "sulfur": 1, "uranium": 1}, true)
	assert(inventory.craft_missile() and GameState.captain.parts == 49.0)
	var unguided := ItemInstance.new()
	unguided.definition = ShipInventory.MISSILE_DEFINITIONS[1]
	assert(inventory.add_item(unguided))
	assert(not unguided.definition.missile_homing)
	assert(unguided.get_damage_range().x > missile.get_damage_range().y)
	assert(inventory.move_item("cargo", 0, "weapon", 2))
	weapons.set("missile_cooldown_remaining", 0.0)
	assert(weapons.call("try_fire_missile"))
	var found_unguided := false
	for child in get_children():
		if child.scene_file_path == "res://scenes/game/weapon_projectile.tscn" and not child.get("missile_homing"):
			found_unguided = true
	assert(found_unguided)
	var target := Node2D.new()
	target.position = Vector2(0, 100)
	add_child(target)
	var straight := PROJECTILE.instantiate() as Area2D
	straight.call("configure", Vector2.ZERO, Vector2.RIGHT, ItemDefinition.WeaponKind.MISSILE, 480.0, 100.0, 1000.0, target)
	straight.set("missile_homing", false)
	straight.collision_mask = 0
	add_child(straight)
	straight.set_physics_process(false)
	straight.call("_physics_process", 0.5)
	assert(straight.position.is_equal_approx(Vector2(240, 0)))
	GameState.system_level = 3
	GameState.captain.credits = 29
	assert(not inventory.buy_missile())
	GameState.captain.credits = 30
	assert(inventory.buy_missile() and GameState.captain.credits == 0)
	GameState.captain.parts = 100.0
	GameState.captain.credits = 100
	for index in inventory.cargo.size():
		if inventory.cargo[index] == null:
			inventory.cargo[index] = missile
	var ammo_before := inventory.missile_ammunition
	GameState.captain.minerals.merge({"iron": 1, "sulfur": 1, "uranium": 1}, true)
	assert(inventory.craft_missile() and GameState.captain.parts == 100.0)
	assert(inventory.buy_missile() and GameState.captain.credits == 70)
	assert(inventory.missile_ammunition == ammo_before + 2)
	addon.value = 100.0
	assert(inventory.get_missile_cooldown(missile) == 1.0)
	var affix := load("res://resources/items/affixes/missile_cooldown.tres") as ItemAffixDefinition
	assert(affix.can_roll(ShipInventory.MISSILE_DEFINITIONS[0], 1))
	assert(affix.roll_value(1) >= 0.1 and affix.roll_value(1000) >= 1.0)
	inventory.preserve_for_restart()
	assert(GameState.restart_inventory["weapon"].size() == 3)
	var restored := PLAYER.instantiate() as CharacterBody2D
	add_child(restored)
	restored.set_physics_process(false)
	restored.get_node("WeaponController").set_physics_process(false)
	var restored_inventory := restored.get_node("ShipInventory") as ShipInventory
	assert(restored_inventory.missile_ammunition == inventory.missile_ammunition)
	assert(restored_inventory.weapon_slots[2] == unguided)
	print("MISSILE_SYSTEM_TEST: PASS (slots, permanent launchers, separate ammo, cooldown, no energy, variants, crafting, purchases, affix, restart)")
	get_tree().quit()