Add fish selling, buyer profiles, and player wallet

economy/fish_sale_service.gd

@@ -0,0 +1,98 @@
+class_name FishSaleService
+extends Node
+
+const FishCatchType = preload("res://fish/fish_catch.gd")
+const FishBuyerProfileType = preload("res://economy/fish_buyer_profile.gd")
+const FishInventoryType = preload("res://inventory/fish_inventory.gd")
+const FishSaleResultType = preload("res://economy/fish_sale_result.gd")
+const PlayerWalletType = preload("res://economy/player_wallet.gd")
+
+signal sale_completed(result: FishSaleResultType)
+
+var _inventory: FishInventoryType
+var _wallet: PlayerWalletType
+
+
+func setup(
+	inventory: FishInventoryType,
+	wallet: PlayerWalletType,
+) -> void:
+	_inventory = inventory
+	_wallet = wallet
+
+
+func can_sell(
+	catch_id: StringName,
+	buyer: FishBuyerProfileType,
+) -> bool:
+	return _validate_sale(catch_id, buyer).is_success()
+
+
+func sell(
+	catch_id: StringName,
+	buyer: FishBuyerProfileType,
+) -> FishSaleResultType:
+	var result: FishSaleResultType = _validate_sale(catch_id, buyer)
+	if not result.is_success():
+		return result
+
+	var removed_catch: FishCatchType = _inventory.remove_catch_by_id(catch_id)
+	if removed_catch == null:
+		result.success = false
+		result.status = FishSaleResultType.Status.NOT_FOUND
+		return result
+	if not _wallet.credit(result.payout):
+		_inventory.add_catch(removed_catch)
+		result.success = false
+		result.status = FishSaleResultType.Status.TRANSACTION_FAILED
+		return result
+	sale_completed.emit(result)
+	return result
+
+
+func _validate_sale(
+	catch_id: StringName,
+	buyer: FishBuyerProfileType,
+) -> FishSaleResultType:
+	var result := FishSaleResultType.new()
+	result.catch_id = catch_id
+	if (
+		catch_id.is_empty()
+		or _inventory == null
+		or _wallet == null
+	):
+		result.status = FishSaleResultType.Status.NOT_FOUND
+		return result
+	if buyer == null or not buyer.is_valid():
+		result.status = FishSaleResultType.Status.INVALID_BUYER
+		return result
+	var fish_catch: FishCatchType = _inventory.get_catch_by_id(catch_id)
+	if fish_catch == null:
+		result.status = FishSaleResultType.Status.NOT_FOUND
+		return result
+	result.fish_name = fish_catch.fish.display_name
+	result.buyer_id = buyer.id
+	result.buyer_display_name = buyer.display_name
+	result.buyer_animal_name = (
+		buyer.animal_name_plural
+		if not buyer.animal_name_plural.is_empty()
+		else buyer.display_name
+	)
+	result.base_value = fish_catch.sale_value
+	result.payout = buyer.get_offer(result.base_value)
+	if fish_catch.is_favorited:
+		result.status = FishSaleResultType.Status.FAVORITED
+	elif fish_catch.sale_value < 0:
+		result.status = FishSaleResultType.Status.INVALID_VALUE
+	elif result.payout < 0:
+		result.status = FishSaleResultType.Status.INVALID_OFFER
+	elif not _wallet.can_credit(result.payout):
+		result.status = FishSaleResultType.Status.TRANSACTION_FAILED
+	else:
+		result.status = FishSaleResultType.Status.SUCCESS
+		result.success = true
+		result.sale_message = buyer.get_sale_message(
+			result.fish_name,
+			result.payout
+		)
+	return result