extends TileMapLayer

@export var building_spots: Array[Vector2i]
@export var tree_spots: Array[Vector2i]
@export var rock_spots: Array[Vector2i]
@export var th_spots: Array[Vector2i]
@export var level: int
var ruins_spots: Array[Vector2i]

var building_data = {}
var last_tile
var last_text
var rand = 0

const NAME_ICON = preload("res://NameIcon.tscn")
const RESOURCE_GAIN = preload("res://ResourceGain.tscn")

var building_to_tile_map = {
	"tents": {
		"source": 8,
		"atlas": 0
	},
	"quarter": {
		"source": 8,
		"atlas": 1
	},
	"house": {
		"source": 8,
		"atlas": 2
	},
	"essencecompressor": {
		"source": 9,
		"atlas": 2
	},
	"woodcutter": {
		"source": 9,
		"atlas": 1
	},
	"stoneminer": {
		"source": 9,
		"atlas": 0
	},
	"foodgathering": {
		"source": 7,
		"atlas": 2
	},
	"foodprocessing": {
		"source": 7,
		"atlas": 3
	},
	"waterprocessor": {
		"source": 7,
		"atlas": 1
	},
	"waterpump": {
		"source": 7,
		"atlas": 0
	}
}

func _process(delta: float) -> void:
	var tile = local_to_map(get_global_mouse_position())
	var building_mode = Persister.get_value("building_mode")
	
	for spot in building_spots:
		if not building_data.has(spot) and not tree_spots.has(spot) and not rock_spots.has(spot) and not th_spots.has(spot) and not ruins_spots.has(spot):
			erase_cell(spot)
	
	if last_tile != tile:
		if last_text and is_instance_valid(last_text) and last_text.selected:
			last_text._deselect()
		
		rand = randi_range(0, 1)
		
		if not Persister.get_value("building_mode"):
			if rock_spots.has(tile):
				last_text = NAME_ICON.instantiate()
				last_text.text = "[center]Rock"
				last_text.position = map_to_local(tile) + Vector2(-25, -10)
				add_sibling(last_text)
			elif tree_spots.has(tile):
				last_text = NAME_ICON.instantiate()
				last_text.text = "[center]Tree"
				last_text.position = map_to_local(tile) + Vector2(-25, -10)
				add_sibling(last_text)
			elif th_spots.has(tile):
				last_text = NAME_ICON.instantiate()
				last_text.text = "[center]Town Hall"
				last_text.position = map_to_local(tile) + Vector2(-25, -10)
				add_sibling(last_text)
			elif ruins_spots.has(tile):
				last_text = NAME_ICON.instantiate()
				last_text.text = "[center]Ruins"
				last_text.position = map_to_local(tile) + Vector2(-25, -10)
				add_sibling(last_text)
			elif building_data.has(tile):
				last_text = NAME_ICON.instantiate()
				last_text.text = "[center]%s" % [Data.data.buildings[building_data[tile].key].name]
				last_text.position = map_to_local(tile) + Vector2(-25, -10)
				add_sibling(last_text)
	
	for coords in building_data:
		var building = building_data[coords]
		if building.has("workers") and building.workers > 0 and (not Data.data.buildings[building.key].has("needs") or (Persister.get_value(Data.data.buildings[building.key].needs, PersisterEnums.Scope.UNKNOWN, 0) > 0)):
			building.progress += delta * building.efficiency / 100.0
			
			if building.progress >= Data.data.buildings[building.key].time:
				if Data.data.buildings[building.key].has("needs"):
					Persister.change_value(Data.data.buildings[building.key].needs, -1)
				Persister.change_value(Data.data.buildings[building.key].resource, Data.data.buildings[building.key].amount)
				var gain = RESOURCE_GAIN.instantiate()
				gain.text = "[center]+1 %s" % [Data.data.buildings[building.key].resourcename]
				gain.position = map_to_local(coords) + Vector2(-25, -5)
				add_sibling(gain)
				building.progress -= Data.data.buildings[building.key].time
		
		if building.has("workers"):
			var close_bonus = 1.0
			
			if building.key == "woodcutter":
				if tree_spots.size() == 0:
					close_bonus = 0
				else:
					var min_distance = INF
					for tree in tree_spots:
						var distance = tree.distance_to(coords)
						
						if distance < min_distance:
							min_distance = distance
						
					if min_distance > 5:
						close_bonus = 0
					else:
						close_bonus = 1 - (min_distance / 5)
			elif building.key == "stoneminer":
				if rock_spots.size() == 0:
					close_bonus = 0
				else:
					var min_distance = INF
					for tree in rock_spots:
						var distance = tree.distance_to(coords)
						
						if distance < min_distance:
							min_distance = distance
						
					if min_distance > 5:
						close_bonus = 0
					else:
						close_bonus = 1 - (min_distance / 5)
			elif building.key == "waterpump":
				var water_level = Persister.get_value("flood_level", PersisterEnums.Scope.UNKNOWN, 0)
				
				var amount = level - water_level
				
				if amount > 3:
					close_bonus = 0
				else:
					close_bonus = (3 - amount)
			
			building.efficiency = (100 + Persister.get_value("conduit_bonus", PersisterEnums.Scope.UNKNOWN, 0)) * building.workers * 0.5 * close_bonus
	
	last_tile = tile
	
	if not building_mode:
		return
	
	if building_spots.has(tile) and not rock_spots.has(tile) and not tree_spots.has(tile) and not th_spots.has(tile) and not building_data.has(tile) and not ruins_spots.has(tile):
		var build_data = building_to_tile_map[Persister.get_value("building_key")]
		set_cell(tile, build_data["source"], Vector2i(build_data["atlas"],rand), 0)
	
	

func _ready() -> void:
	Triggerer.listen("flood_level", _on_flood_level)



func _on_flood_level(data):
	var value = int(data.value)
	
	if value >= level:
		for coords in building_data:
			var building = building_data[coords]
			var build_data = Data.data.buildings[building.key]
			var bttm = building_to_tile_map[building.key]
			
			var atlas = bttm.atlas
			var source
			
			match build_data.type:
				"utility":
					source = 11
				"housing":
					source = 12
				"production":
					source = 10
			
			if building.has("workers"):
				Persister.change_value("avail_population", building.workers)
			elif build_data.type == "housing":
				Persister.change_value("avail_population", -build_data.amount)
			
			ruins_spots.push_back(coords)
			set_cell(coords, source, Vector2i(atlas,building.rand), 0)
		building_data.clear()


func kill_citizen():
	for coords in building_data:
		var building = building_data[coords]
		
		if building.has("workers") and building.workers > 0:
			building.workers -= 1
			return true
	
	return false


func place_building():
	var tile = local_to_map(get_global_mouse_position())
	if building_spots.has(tile) and not building_data.has(tile) and not tree_spots.has(tile) and not rock_spots.has(tile) and not th_spots.has(tile) and not ruins_spots.has(tile):
		Persister.persist_data("building_mode", false)
		building_data[tile] = {
			"key": Persister.get_value("building_key"),
			"rand": rand,
			"level": level
		}
		
		var build_data = Data.data.buildings[Persister.get_value("building_key")]
		var cost = build_data.cost
		
		if cost.has("wood"):
			Persister.change_value("wood", -int(cost.wood))
		if cost.has("stone"):
			Persister.change_value("stone", -int(cost.stone))
		
		if build_data.type == "housing":
			Persister.change_value("max_population", int(build_data.amount))
			building_data[tile].max_population = int(build_data.amount)
		elif build_data.name != "Conduit":
			building_data[tile].workers = 0
			building_data[tile].max_workers = 6
			building_data[tile].efficiency = 100 + Persister.get_value("conduit_bonus", PersisterEnums.Scope.UNKNOWN, 0)
			building_data[tile].progress = 0
		else:
			Persister.change_value("conduit_bonus", 20)
	
	Persister.persist_data("drag_mode", false)


func show_info_building():
	var tile = local_to_map(get_global_mouse_position())
	if building_data.has(tile):
		Triggerer.trigger("show_info", building_data[tile])