# Hurry Curry! - a game about cooking
# Copyright (C) 2025 Hurry Curry! contributors
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, version 3 of the License only.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <https://www.gnu.org/licenses/>.
#
extends Node

enum EventType {
	KEYBOARD,
	JOYPAD,
	TOUCH,
	OTHER
}

var default_input_map = {}
var input_map: Dictionary

func _init():
	default_input_map = get_input_map()
	input_map = default_input_map.duplicate(true)

func get_input_map() -> Dictionary:
	var actions = InputMap.get_actions().filter(func isBuiltIn(k: String): return !k.begins_with("ui_"))
	var kb = {}
	for a in actions:
		var input_events: Array[InputEvent] = InputMap.action_get_events(a).duplicate(true)
		kb[a] = input_events
	return kb

func get_events(action_name: String) -> Array:
	if not input_map.has(action_name):
		push_error("Tried to get action %s in input map which does not exist" % action_name)
		return []
	return input_map[action_name]

func settings() -> Array:
	var entries := []
	for k in input_map.keys(): entries.append(InputSetting.new(k))
	return entries

func change_input_map_action(action_name: String, events: Array, save: bool = true):
	if !InputMap.has_action(action_name):
		push_error("Action %s does not exist" % action_name, false)
		return
	# Erase previous keybindings
	InputMap.action_erase_events(action_name)
	# Add new keybindings
	for e in events:
		InputMap.action_add_event(action_name, e)
	
	if save:
		# Update input map dictionary
		input_map = get_input_map()
		# Save settings
		Settings.write("input_map", input_map.duplicate(true))

func apply_input_map(new_input_map: Dictionary):
	# Load into input map dictionary
	for k in new_input_map.keys():
		input_map[k] = []
		for a in new_input_map[k]:
			input_map[k].append(a)
	
	# Apply keybindings
	for k in input_map.keys():
		change_input_map_action(k, input_map[k], false)

func reset_input_map():
	Settings.write("input_map", default_input_map.duplicate())
	apply_input_map(Settings.read("input_map"))

func get_event_type(input_event: InputEvent) -> EventType:
	if input_event is InputEventKey or input_event is InputEventMouseButton:
		return EventType.KEYBOARD
	elif input_event is InputEventJoypadButton or input_event is InputEventJoypadMotion:
		return EventType.JOYPAD
	elif input_event is InputEventScreenTouch or input_event is InputEventScreenDrag:
		return EventType.TOUCH
	return EventType.OTHER

func display_input_event(input_event: InputEvent) -> String:
	if input_event is InputEventKey:
		var key_name = OS.get_keycode_string(input_event.physical_keycode if input_event.physical_keycode != 0 else input_event.keycode)
		return tr("c.settings.input.keyboard").format([key_name])
	elif input_event is InputEventMouseButton:
		return tr("c.settings.input.mouse_button").format([input_event.button_index])
	elif input_event is InputEventJoypadButton:
		return tr("c.settings.input.joypad").format([input_event.button_index])
	elif input_event is InputEventJoypadMotion:
		return tr("c.settings.input.joypad_axis").format([input_event.axis])
	else:
		return tr("c.settings.input.other_event")