extends Node3D
class_name Combo

@onready var character: Character = (get_owner() as Character)
@onready var status: Status = (%Status as Status)
@onready var skill: Skill = (%Skill as Skill)
@onready var move: Move = (%Move as Move)


class InputData:
    var action: String
    var alive_time: float

var skill_map: Dictionary      = {} #input -> skill[] 
var input_list: Array[Variant] = [] #指令缓存


func _ready():
    # test
    add_weapon(load("res://config/weapon/long.tres") as WeaponCfg)
    add_weapon(load("res://config/weapon/short.tres") as WeaponCfg)
    add_weapon(load("res://config/weapon/fist.tres") as WeaponCfg)


func _process(delta):
    update_input_alive(delta)
    update_break()
    update_move()


func update_input_alive(delta):
    var input_list_new: Array[Variant] = []
    for input in input_list:
        input.alive_time -= delta
        if input.alive_time > 0:
            input_list_new.append(input)
    input_list = input_list_new


func update_break():
    for break_level_name in Enum.EBreakLevel:
        var break_level = Enum.EBreakLevel[break_level_name]
        if break_level <= status.break_level:
            var is_break: bool = false
            match break_level:
                Enum.EBreakLevel.None: pass
                Enum.EBreakLevel.Cancel: is_break = update_break_cancel()
                Enum.EBreakLevel.Jump: is_break = update_break_jump()
                Enum.EBreakLevel.Break: is_break = update_break_break()
                Enum.EBreakLevel.Walk: is_break = update_break_walk()
            if is_break:
                break


func update_break_cancel() -> bool:
    return update_break_by_level(Enum.EBreakLevel.Cancel)


func update_break_jump() -> bool:
    for i in range(0, len(input_list)):
        var input = input_list[i]
        if input.action == "jump" and not status.is_jumped:
            refresh_input(i)
            skill.cancel_skill()
            move.jump()
            return true
    return false


func update_break_break() -> bool:
    return update_break_by_level(Enum.EBreakLevel.Break)


func update_break_walk() -> bool:
    if status.is_skill_running and status.input_dir.length() > 0:
        refresh_input(len(input_list))
        skill.cancel_skill()
        return true
    return false


func update_break_by_level(break_level: Enum.EBreakLevel) -> bool:
    for i in range(0, len(input_list)):
        var input = input_list[i]
        if not input.action in skill_map:
            continue
        for skill_cfg in skill_map[input.action]:
            var skill_player_weapon_cfg: SkillPlayerCfg = skill_cfg as SkillPlayerCfg
            if skill_player_weapon_cfg.break_level != break_level:
                continue
            var stance_from: Enum.EStance = skill_player_weapon_cfg.stance_from
            if stance_from != status.stance and stance_from != Enum.EStance.Any:
                continue
            if skill_player_weapon_cfg.weapon:
                if skill_player_weapon_cfg.weapon != status.weapon_list[status.weapon_index]:
                    continue
            skill.cast_skill(skill_cfg, status.input_dir)
            status.stance = skill_player_weapon_cfg.stance_to
            refresh_input(i)
            return true
    return false


func refresh_input(index: int):
    if index >= len(input_list)-1:
        input_list = []
    else:
        input_list = input_list.slice(index+1)


func update_move():
    status.move_dir = status.input_dir
    if status.is_skill_running:
        pass
    else:
        if not status.is_on_floor or status.is_jumping:
            status.stance = Enum.EStance.AirIdle
        else:
            status.stance = Enum.EStance.Idle
        status.break_level = Enum.EBreakLevel.Walk


func add_input_action(action: String):
    var new_input = InputData.new()
    new_input.action = action
    new_input.alive_time = Setting.input_alive_time
    input_list.append(new_input)


func add_skill(action: String, skillCfg: SkillPlayerCfg):
    if not action in skill_map:
        skill_map[action] = []
    skill_map[action].append(skillCfg)


func remove_skill(action: String, skillCfg: SkillPlayerCfg) -> void:
    if not action in skill_map:
        return
    skill_map[action].filter(func(cfg): return cfg != skillCfg)


func add_weapon(weapon: WeaponCfg):
    status.weapon_list.append(weapon)
    for skill_player_weapon_res: SkillPlayerCfg in Util.get_skill_player_weapon_by_weapon(weapon):
        var skill_player_weapon: SkillPlayerCfg = skill_player_weapon_res as SkillPlayerCfg
        add_skill(skill_player_weapon.action, skill_player_weapon_res)
    status.emit_status("weapon_list")
    status.set_status("weapon_index", 0)


func weapon_index_change(dir: int) -> void:
    if not status.weapon_list:
        return
    if status.weapon_index_change_dir:
        return
    if abs(dir) != 1:
        return
    status.set_status("weapon_index_change_dir", dir)
    character.add_buff("weapon_index_change", Setting.weapon_anime_duration)
    return