extends Item
class_name Seed

const MUTATION_PROBABILITY = 0.2

const SHOVEL_ICON = preload("res://common/icons/shovel.svg")
const GROWING_ICON = preload("res://common/icons/chevrons-up.svg")
const SCORE_ICON = preload("res://common/icons/growth.svg")

@export var plant_type: PlantType
@export var plant_mutations: Array[PlantMutation]

func get_item_name() -> String:
	return plant_type.name

func get_description() -> String:
	return ""

func get_icon() -> Texture2D:
	return plant_type.seed_texture

func get_energy_used() -> int:
	return 1

func get_usage_zone_radius() -> int:
	return 30

func _init(
	_plant_type : PlantType = null,
	_parent_mutation : Array[PlantMutation] = []
):
	plant_type = _plant_type
	plant_mutations = Seed.mutate(_parent_mutation)

func use_text() -> String:
	return "Plant " + plant_type.name

func is_one_time_use():
	return true

func can_use(player : Player, zone : Player.ActionZone) -> bool:
	var is_there_a_plant_here = false
	for area in zone.area.get_overlapping_areas() :
		if area is Plant:
			is_there_a_plant_here = true
	
	var is_there_contamination_in_zone = false
	for point in zone.get_points_in_zone():
		if player.planet.is_there_contamination(point):
			is_there_contamination_in_zone = true

	return not is_there_a_plant_here and not is_there_contamination_in_zone

func use(player : Player, zone : Player.ActionZone) -> bool:
	player.play_sfx("dig")
	return player.planet.plant(
		plant_type,
		zone.get_global_position(),
		plant_mutations
	)

func inspector_info() -> Inspector.Info:
	var info = Inspector.Info.new(
		get_item_name(),
		get_description(),
		get_icon()
	)

	for m in plant_mutations:
		info.framed_infos.append(
			PlantMutation.get_framed_info_from_mutation(m)
		)

	info.framed_infos.append_array(
		PlantEffect.get_framed_info_from_all_trigger_effects(
			plant_type.default_mature_effects,
			plant_type.default_harvest_effects,
			plant_type.default_cyclic_effects
		)
	)

	info.stat_infos = [
		Inspector.StatInfo.new(
			"[b]%d[/b] points when mature" % plant_type.default_plant_score,
			SCORE_ICON
		),
		Inspector.StatInfo.new(
			"Grow in [b]%d[/b] days" % plant_type.default_growing_time,
			GROWING_ICON
		)
	]

	return info

func get_particles() -> Array[Particles.Parameters]:
	var param : Array[Particles.Parameters] = []

	for m in plant_mutations:
		param.append(
			Particles.Parameters.new(
				m.get_icon(),
				PlantMutation.get_rarity_color(m)
			)
		)

	return param

static func mutate(parent_mutation : Array[PlantMutation] = []) -> Array[PlantMutation]:

	if randf() > MUTATION_PROBABILITY:
		return parent_mutation

	var possible_mutations : Array[MutationPossibility] = [
		AddMutation.new()
	]

	if len(parent_mutation):
		possible_mutations.append_array( [
			UpgradeMutation.new(),
			RemoveMutation.new(),
		])
	
	var chosen_mutation = possible_mutations.pick_random()

	return chosen_mutation.mutate(parent_mutation)


class MutationPossibility:
	func mutate(_parent_mutation : Array[PlantMutation] = [])-> Array[PlantMutation]:
		return []

class DontMutate extends MutationPossibility:
	func mutate(parent_mutation : Array[PlantMutation] = [])-> Array[PlantMutation]:
		return parent_mutation

class AddMutation extends MutationPossibility:
	func mutate(parent_mutation : Array[PlantMutation] = [])-> Array[PlantMutation]:
		var new_mutations = parent_mutation.duplicate_deep()
		var mut = PlantMutation.random_mutation()

		if mut:
			var existing_mut_id = new_mutations.find_custom(func(m:PlantMutation): m.get_mutation_name() == mut.get_mutation_name())
			
			if existing_mut_id >= 0:
				new_mutations[existing_mut_id].level += 1
			else :
				new_mutations.append(mut)

		return new_mutations

class UpgradeMutation extends MutationPossibility:
	func mutate(
		parent_mutation : Array[PlantMutation] = []
	) -> Array[PlantMutation]:
		var new_mutations = parent_mutation.duplicate_deep()

		new_mutations.pick_random().level += 1

		return new_mutations

class RemoveMutation extends MutationPossibility:
	func mutate(parent_mutation : Array[PlantMutation] = [])-> Array[PlantMutation]:
		var new_mutations :Array[PlantMutation] = parent_mutation.duplicate_deep()

		var mut_to_remove = new_mutations.pick_random()
		if mut_to_remove.level > 1:
			mut_to_remove.level -= 1
		else:
			new_mutations.remove_at(new_mutations.find(mut_to_remove))

		return new_mutations