/**
 * ## Item interaction
 *
 * Handles non-combat iteractions of a tool on this atom,
 * such as using a tool on a wall to deconstruct it,
 * or scanning someone with a health analyzer
 *
 * This can be overridden to add custom item interactions to this atom
 *
 * Do not call this directly
 */
/atom/proc/item_interaction(mob/living/user, obj/item/tool, list/modifiers, is_right_clicking)
	SHOULD_CALL_PARENT(TRUE)
	PROTECTED_PROC(TRUE)

	var/is_left_clicking = !is_right_clicking
	var/early_sig_return = NONE
	if(is_left_clicking)
		early_sig_return = SEND_SIGNAL(src, COMSIG_ATOM_ITEM_INTERACTION, user, tool, modifiers) \
			| SEND_SIGNAL(tool, COMSIG_ITEM_INTERACTING_WITH_ATOM, user, src, modifiers)
	else
		early_sig_return = SEND_SIGNAL(src, COMSIG_ATOM_ITEM_INTERACTION_SECONDARY, user, tool, modifiers) \
			| SEND_SIGNAL(tool, COMSIG_ITEM_INTERACTING_WITH_ATOM_SECONDARY, user, src, modifiers)
	if(early_sig_return)
		return early_sig_return

	var/interact_return = is_left_clicking \
		? tool.interact_with_atom(src, user) \
		: tool.interact_with_atom_secondary(src, user)
	if(interact_return)
		return interact_return

	var/tool_type = tool.tool_behaviour
	if(!tool_type) // here on only deals with ... tools
		return NONE

	var/list/processing_recipes = list()
	var/signal_result = is_left_clicking \
		? SEND_SIGNAL(src, COMSIG_ATOM_TOOL_ACT(tool_type), user, tool, processing_recipes) \
		: SEND_SIGNAL(src, COMSIG_ATOM_SECONDARY_TOOL_ACT(tool_type), user, tool)
	if(signal_result)
		return signal_result
	if(length(processing_recipes))
		process_recipes(user, tool, processing_recipes)
	if(QDELETED(tool))
		return ITEM_INTERACT_SUCCESS // Safe-ish to assume that if we deleted our item something succeeded

	var/act_result = NONE // or FALSE, or null, as some things may return

	switch(tool_type)
		if(TOOL_CROWBAR)
			act_result = is_left_clicking ? crowbar_act(user, tool) : crowbar_act_secondary(user, tool)
		if(TOOL_MULTITOOL)
			act_result = is_left_clicking ? multitool_act(user, tool) : multitool_act_secondary(user, tool)
		if(TOOL_SCREWDRIVER)
			act_result = is_left_clicking ? screwdriver_act(user, tool) : screwdriver_act_secondary(user, tool)
		if(TOOL_WRENCH)
			act_result = is_left_clicking ? wrench_act(user, tool) : wrench_act_secondary(user, tool)
		if(TOOL_WIRECUTTER)
			act_result = is_left_clicking ? wirecutter_act(user, tool) : wirecutter_act_secondary(user, tool)
		if(TOOL_WELDER)
			act_result = is_left_clicking ? welder_act(user, tool) : welder_act_secondary(user, tool)
		if(TOOL_ANALYZER)
			act_result = is_left_clicking ? analyzer_act(user, tool) : analyzer_act_secondary(user, tool)
		// SKYRAT EDIT ADDITION START - SKYRAT TOOLS
		if(TOOL_BILLOW)
			act_result = is_left_clicking ? billow_act(user, tool) : billow_act_secondary(user, tool)
		if(TOOL_TONG)
			act_result = is_left_clicking ? tong_act(user, tool) : tong_act_secondary(user, tool)
		if(TOOL_HAMMER)
			act_result = is_left_clicking ? hammer_act(user, tool) : hammer_act_secondary(user, tool)
		if(TOOL_BLOWROD)
			act_result = is_left_clicking ? blowrod_act(user, tool) : blowrod_act_secondary(user, tool)
		// SKYRAT EDIT ADDITION END

	if(!act_result)
		return NONE

	// A tooltype_act has completed successfully
	if(is_left_clicking)
		log_tool("[key_name(user)] used [tool] on [src] at [AREACOORD(src)]")
		SEND_SIGNAL(tool, COMSIG_TOOL_ATOM_ACTED_PRIMARY(tool_type), src)
	else
		log_tool("[key_name(user)] used [tool] on [src] (right click) at [AREACOORD(src)]")
		SEND_SIGNAL(tool, COMSIG_TOOL_ATOM_ACTED_SECONDARY(tool_type), src)
	return act_result

/**
 * Called when this item is being used to interact with an atom,
 * IE, a mob is clicking on an atom with this item.
 *
 * Return an ITEM_INTERACT_ flag in the event the interaction was handled, to cancel further interaction code.
 * Return NONE to allow default interaction / tool handling.
 */
/obj/item/proc/interact_with_atom(atom/interacting_with, mob/living/user)
	return NONE

/**
 * Called when this item is being used to interact with an atom WITH RIGHT CLICK,
 * IE, a mob is right clicking on an atom with this item.
 *
 * Default behavior has it run the same code as left click.
 *
 * Return an ITEM_INTERACT_ flag in the event the interaction was handled, to cancel further interaction code.
 * Return NONE to allow default interaction / tool handling.
 */
/obj/item/proc/interact_with_atom_secondary(atom/interacting_with, mob/living/user)
	return interact_with_atom(interacting_with, user)

/*
 * Tool-specific behavior procs.
 *
 * Return an ITEM_INTERACT_ flag to handle the event, or NONE to allow the mob to attack the atom.
 * Returning TRUE will also cancel attacks. It is equivalent to an ITEM_INTERACT_ flag. (This is legacy behavior, and is not to be relied on)
 * Returning FALSE or null will also allow the mob to attack the atom. (This is also legacy behavior)
 */

/// Called on an object when a tool with crowbar capabilities is used to left click an object
/atom/proc/crowbar_act(mob/living/user, obj/item/tool)
	return

/// Called on an object when a tool with crowbar capabilities is used to right click an object
/atom/proc/crowbar_act_secondary(mob/living/user, obj/item/tool)
	return

/// Called on an object when a tool with multitool capabilities is used to left click an object
/atom/proc/multitool_act(mob/living/user, obj/item/tool)
	return

/// Called on an object when a tool with multitool capabilities is used to right click an object
/atom/proc/multitool_act_secondary(mob/living/user, obj/item/tool)
	return

///Check if an item supports a data buffer (is a multitool)
/atom/proc/multitool_check_buffer(user, obj/item/multitool, silent = FALSE)
	if(!istype(multitool, /obj/item/multitool))
		if(user && !silent)
			to_chat(user, span_warning("[multitool] has no data buffer!"))
		return FALSE
	return TRUE

/// Called on an object when a tool with screwdriver capabilities is used to left click an object
/atom/proc/screwdriver_act(mob/living/user, obj/item/tool)
	return

/// Called on an object when a tool with screwdriver capabilities is used to right click an object
/atom/proc/screwdriver_act_secondary(mob/living/user, obj/item/tool)
	return

/// Called on an object when a tool with wrench capabilities is used to left click an object
/atom/proc/wrench_act(mob/living/user, obj/item/tool)
	return

/// Called on an object when a tool with wrench capabilities is used to right click an object
/atom/proc/wrench_act_secondary(mob/living/user, obj/item/tool)
	return

/// Called on an object when a tool with wirecutter capabilities is used to left click an object
/atom/proc/wirecutter_act(mob/living/user, obj/item/tool)
	return

/// Called on an object when a tool with wirecutter capabilities is used to right click an object
/atom/proc/wirecutter_act_secondary(mob/living/user, obj/item/tool)
	return

/// Called on an object when a tool with welder capabilities is used to left click an object
/atom/proc/welder_act(mob/living/user, obj/item/tool)
	return

/// Called on an object when a tool with welder capabilities is used to right click an object
/atom/proc/welder_act_secondary(mob/living/user, obj/item/tool)
	return

/// Called on an object when a tool with analyzer capabilities is used to left click an object
/atom/proc/analyzer_act(mob/living/user, obj/item/tool)
	return

/// Called on an object when a tool with analyzer capabilities is used to right click an object
/atom/proc/analyzer_act_secondary(mob/living/user, obj/item/tool)
	return